NMDC LIMITED - AWS

Tender Enquiry No: HO(Contracts)/Engg/NISP/CISF/2018/173 Dt. 17/05/2018 of 176

NMDC LIMITED (A GOVERNMENT OF INDIA ENTERPRISE)

10-3-311/A, Khanij Bhavan, Masab Tank, Hyderabad – 500 028, Telangana State

TENDER DOCUMENT

For

Construction of CISF Barracks for Sub Officers (SOs) & Other Rank Officers (ORs) (Package-1) at NISP, Nagarnar, District: Jagdalpur, Chhattisgarh [[

VOLUME – II

(TECHNICAL SPECIFICATION)


Construction of CISF Barracks for Sub Officers (SOs) & Other Rank Officers (ORs) (Package-1) at NISP, Nagarnar, District: Jagdalpur, Chhattisgarh

CONTENTS

SL. NO.

SECTION PARTICULARS Page No.

1. PART – A CIVIL WORKS 03

2. PART – B DRAINAGE, SANITATION AND WATER SUPPLY

78

3. PART – C FIRE FIGHTING WORKS 113

4. PART – D ELECTRICAL WORKS 149

5. PART - E LIST OF APPROVED MAKES OF

MATERIAL

169

6 PART - F TENDER DRAWINGS 176



PART – A (CIVIL WORKS)



SECTION-1

GENERAL TECHNICAL SPECIFICATIONS FOR

CIVIL WORKS



1. GENERAL TECHNICAL SPECIFICATIONS FOR CIVIL WORKS 1.0 GENERAL:- The scope of work covers execution and completion of the work “Construction of

CISF Barracks for Sub Officers (SOs) & Other Rank Officers (ORs) (Package-1) at NISP, Nagarnar, District: Jagdalpur, Chhattisgarh” in accordance with drawings and specifications prepared by NMDC LIMITED- Engineering Division, Civil department, Hyderabad.

Unless provided otherwise the work shall be executed as per CPWD

specifications latest version Volume I & II with up to date amendments and corrections.

The Contractor shall bring samples of all materials; finished or raw to the site and

shall get them approved from the Engineer-in-Charge before using them in the work. Any material not conforming to approved samples stands rejected and shall be removed within 48 hours from the site failing which it shall be removed by the Engineer-in-Charge representative from the site at the risk and cost of the Contractor.

The Contractor shall use only washed coarse-sand, if washed sand is not

available, the Contractor shall have mechanical arrangement of washing the sand at site.

Before starting any concreting work and whenever the sources of water changes, the water shall be tested for its chemical and other impurities to ascertain the suitability for use in concrete for approval of the Engineer-in-Charge. No water shall be used until tested and found satisfactory. The tests shall be conducted at interval of one month.

If any Super plasticizer is used in the concrete to increase the workability, its

make brand, dose etc. shall be decided only after carrying cube tests with and without the addition of Super plasticizer.

The Contractor shall give a list of all plants, machinery, centering, shuttering which he proposes to use in the work with the probable dates of their arrival at site. This list shall accompany the tender. The Engineer-in-Charge shall approve the same before the Contractor brings the same at site.

The contractor shall provide and maintain temporary building structure of adequate size with GI/Profile sheet roof sheeting, false ceiling brick/CC Block structure with all other facilities such as water supply/ toiletsElectrical installation for accommodation of its office, store for the work with prior permission of Engineer in charge.

Within 20 days of the date of the work order/handing over of site, the Contractor

shall also provide without any extra cost an office accommodation of about 60.0 sqm with attached Toilets. The office spaces shall be well lighted and cooled and



shall be provided with adequate number of electric lights, plug points, ceiling fans, water cooler and all required furniture and fittings including cabinets and drawing.

All such facilities shall be removed just after completion of the project in all respect

or shifted/removed at any earlier date as directed by the Engineer-in-Charge. All the expenses for maintenance of the above facilities as well as running

expenses shall be borne by the contractor at no extra cost. 2.0 Drawings:

Two copies of all drawings, the schedule of quantities and specifications shall be furnished by the Engineer-in-Charge to the contractor for his own use to be kept at site office for reference & execution of works till the completion of the project in all respect. It shall be accessible at all reasonable times to the Engineer-in-Charge and their representatives. All documents that is i.e. contract Agreement and all Drawings must be return to the Engineer- in-charge after completion of the project. All-important drawings are to be mounted on boards and placed in racks and indexed.

3.0 Dimensions: Figured dimensions are in all cases to be followed & accepted in preference to scaled sizes. Large-scale details take precedence over small-scale drawings. In case of discrepancy the Contractor is to ask for clarification before proceeding with the work. The decision of Engineer-in-Charge shall be final and binding.

4.0 Contractor to inspect site:

The contractor shall visit and examine the construction site and satisfy himself as to the nature of the existing roads or other means of communications, the character of the soil and the excavations, the extent and magnitude of the work and facilities for obtaining materials and shall obtain generally his own information of all matters affecting the execution of the project. Misunderstanding or incorrect information on any of these points or on expenses incurred by the contractor in connection with obtaining site data/information or efforts in compiling the tender shall be borne by the Tenderer and no claims for reimbursement thereof shall be entertained.

4.1 Access to Site:

The Contractor is to include in his rates for making access to the site, with all-temporary roads and gangways as required for execution and completion of the works.

4.2 Setting Out: The Contractor shall set out the building in accordance with the plans. All

grid/centre lines shall be pegged out to the satisfaction of the Engineer-in-Charge.



The Contractor shall be responsible for the correctness of lay out and any inaccuracies to be rectified at his own expense. He will be responsible for taking ground levels of the site before setting out and recording them without any extra charge.

The Contractor shall construct and maintain proper benches at the intersection of

all main walls, columns etc; in order that the lines and levels may be accurately checked at all times.

4.3 Treasure Trove: Should any treasure, fossils, minerals, or works of art of antiquarian interest be

found during excavation or while carrying out the works, the Contractor shall give immediate notice to the Engineer-in-Charge of any such discovery and shall hand over such finds to the Engineer-in-Charge immediately.

4.4 Access for Inspections: The contractor is to provide at all times during the progress of the works and the

maintenance period proper means of access, with ladders, gangways etc. and the necessary attendance to move and adapt as directed for the inspection or measurement of the works by the Engineer-in-Charge or their representatives.

4.5. Attendance upon all Trades: It will be the responsibility of the main Contractor to attend on all Tradesman or

Sub-contractors appointed by the NMDC for other services i.e. for water supply and sanitary, electrical installation, lifts, air-conditioning, security Equipment, hardware, Telephone, Water bore well and other specialist Sub-Contractors. The rates quoted shall be inclusive of all attendance and also allow the other Sub- Contractors’ appointed by the NMDC.

4.6 Water supply: The Contractor shall allow the use of water for other works on the site done by

other Contractors appointed by the NMDC and the apportioning of cost may be done by the parties involved directly and on mutually accepted terms.

4.7 Electric Supply:- He shall also allow other Contractors to use the facilities when requested but the

Engineer-in-Charge shall apportion consumption charges. The parties involved directly and on mutually accepted terms may do the apportioning of cost.

4.8 Gate Keeper and Watchmen:- a) The Contractor from the time of being placed in possession of the site must make

arrangements for watching, lighting and protecting the work, all materials, workmen and the public during day and night on all days including Sundays and holidays at his own cost.



b) Before starting the work the contractor shall intimate to the Engineer-in-Charge

the number and names of works and other personnel together with a copy of each identity card with photograph along with a list of tools, tackles and construction materials for obtaining respective inward gate pass, in triplicate, one for the gate office, one for the Engineer-in-Charge’s representative and the other for the contractor. The contractor shall be permitted similar outward pass on completion of work and on submission of contractor’s copy of same inward pass.

c) The contractor shall apply for gate passes for taking out any materials, tools,

tackles etc. brought by him inside the NMDC premises based on contractor’s copy of inward pass and also for his personnel going out of the NMDC premises.

d) The contractor shall be responsible for any unauthorized removal of materials,

tools, tackles etc. from the NMDC premises. e) NMDC gate office norms to be followed. 5.0 Storage for Materials:-

The Contractor shall provide for all necessary sheds of adequate dimension for storage and protection of materials like cement, lime, timber and such other materials including tools and equipment which are likely to deteriorate by the action of sun wind, rain or other natural causes due to exposure in the open. For cement the contractor shall arrange for leak proof godown of sufficient size to store not less than 3 months requirement of cement.

All such sheds shall be cleared away and the whole area left in good order on completion of the contract to the satisfaction of the Engineer-in-Charge.

All materials, which are stored on the site such as bricks, aggregates etc., shall be stacked in such a manner as to facilitate rapid and easy checking of quantities of such materials.

6.0 Cost of Transporting:-

The Contractor shall allow in his cost for all transporting, unloading, stacking and storing of supplier of goods and materials for this work on the site and in the places approved from time to time by the Engineer-in-Charge. The Contractor shall consider in his price for transport of all materials controlled or otherwise to the site.

7.0 W.C. and Sanitary Accommodation and Office Accessories and

Accommodations:-

The Contractor shall provide at his own cost and expense adequate closet and sanitary accommodation complying in every respect to the rules and regulations in force of the local authorities and other public bodies, for his workmen, for the workmen of sub-contractors and other Contractor’s agents connected with this building project and maintain the same in good working order.



He shall arrange to provide a Dumpy level/Theodolite and at all times maintain in good working order at site, to enable the Engineer-in-Charge to check the lines and levels of the work.

8.0 Materials, Workmanship and Samples:- Samples of materials to be used with original/coloured catalogue with specification shall be brought by Contractor well in advance and shall be displayed and kept in separate sample room on site. Samples of all kind of material to be used shall be getting approved from Engineer-in-Charge.

Materials shall be of approved quality and the best of their kind available and shall generally conform to I.S. Specifications. The Contractor shall order all the materials required for the execution of work as early as necessary and ensure that such materials are on site well ahead of requirement for use in the work. The work involved calls for high standard of workmanship with accelerated progress to the entire satisfaction of the Engineer-in-Charge.

8.1 Rate to Include:- The Rates quoted shall be for all lead, heights and depths and for finished work. 8.2 To ascertain from Contractors for the other trades:- The Contractor shall ascertain from other Contractors as directed by the Engineer-

in-Charge all particulars relating to their work with regard to the order of its execution and the position in which chases, pockets, holes and similar items will be required, before the work is taken in hand as no claims for extras will be allowed for cutting away work already executed in consequence of any neglect by the Contractors to ascertain these particulars beforehand.

9.0 Foreman and Tradesman:- All Tradesmen shall be experienced men properly equipped with suitable tools for

carrying out all the work of carpentry and joinery and other specialist trades in a first class manner and where the Engineer-in-Charge deem necessary, the Contractor shall provide any such tools, special or ordinary, which are considered necessary for carrying out of the work in a proper manner.

All such tradesman shall work under an experienced and properly trained

Foreman, who shall be capable of reading and understanding all drawing, pertaining to this work and the Contractor shall also comply with other conditions set out in the General Conditions of the Contract.

10.0 Work Programme/Weekly Progress Report:- The Contractor shall prepare and submit to Engineer-in-Charge for approval, a

PERT/CPM chart showing the programme of construction of various items, fitted within the period stipulated for completion, within 30 days of the communication of



the acceptance of Tender. The Contractor shall also furnish necessary particulars weekly progress reports in the form furnished by the Engineer-in-Charge. Approved programme shall be the basis for monitoring the progress of work. The Contractors also should up date and re-analyze the PERT/CPM chart as often as required as per direction of s and Engineer-in-Charge to assess and reassess the progress of work done and take corrective measures for making out any deficiency.

11.0 Clearing of site:- The contractor shall immediately after completion of the work clear the site of all

debris and left over materials at his own expense to the entire satisfaction of the Engineer-in-Charge and Municipal or other public authorities. Before taking out any surplus material, reconciliation of materials shall be submitted by the contractor for approval. For taking out the materials, the contractor shall strictly follow the provisions laid down in General Specifications and/or any subsequent circulars that may be issued by NMDC from time to time.

12.0 Photographs:- The Contractor shall at his own expense supply to the Engineer-in-Charge with

triplicate copies (including the soft copy) of large photographs not less than 25 Cm. x 20 Cm. (10” x 8”) of the works taken from two approved portions of each building, in every month during the progress of the work, or at every important stages of construction.

13.0 Preparation of Building for occupation and use on Completion:- The whole of the work shall be thoroughly inspected by the Contractor and all

deficiencies and defects put right. On completion of such inspection, the Contractor shall inform the Engineer-in-Charge in writing that he has finished the work and it is ready for the Engineer-in-Charge inspection.

On completion, the Contractor shall clean all windows and doors and all glass

panes, including cleaning of all floors, skirting, dados, staircases and every part of the building including oiling all hardware. He will leave the entire building neat and clean and ready for immediate occupation and to the satisfaction of the Engineer-in-Charge.

14.0 Contractor to Provide Sign Board:- The Contractor shall provide notice on proper supports 3 m x 2 m (10’ x 6’) in a

position approved by the Engineer-in-Charge. He shall allow for painting and lettering stating name of work, name of Engineer-in-charge, Structural Consultants; General Contractor and Sub-Contractors, all letters except that of the name of the work shall be in letters to the approval of the Engineer-in-Charge. He will also display safety notices as per requirement and direction of Engineer-in-Charge.

15.0 Vouchers:-



The Contractor shall furnish the Engineer-in-Charge with vouchers on request to

prove that the materials are as specified and to indicate the rate at which the materials are purchased in order to work out the rate analysis of the non-tender items which he may be called upon to carry out. He will also have to provide the gate entry challan.

16.0 Protection:- The Contractor shall properly cover up and protect all work throughout the

duration of work until completion, particularly masonry/finish, moulding, steps, terrazzo or special floor finishes, staircase and balustrades, doors and window frames, plaster angles, lighting and sanitary fittings, glass, paint work and all finishing works.



SECTION-2

DETAIL SPECIFICATION FOR CIVIL &

STRUCTURAL WORKS



2.1 SITE CLEARANCE & LEVELLING

1.0 SITE CLEARING 1.1 This specification covers the requirements of site clearance and site leveling. 1.2 The Tenderer shall inspect the site to determine the extent of all items to be

cleared and the cost of this work is deemed to be included in the item allowed for site clearance.

No trees or bushes are to be cut without the prior approval of the Department who shall have to be notified at least 48 hours before starting this work. All trees and bushes cut shall become the property of the Department and shall have to be stacked in an orderly manner by the Tenderer and as directed by the officers of the Department adjacent to the main road so that it can be easily loaded on lorries and unloaded at the concern department yard by tenderer.

1.4 All boulders shall be stacked in neat piles on approved sites and locations. 1.5 All combustible matter shall be disposed of as directed by the Engineer. 2.0 LEVELLING 2.1 The site shall be brought to a fairly good level for grid marking pillars to be

established. The formation level of the site shall be a minimum of 300mm higher than the average existing ground level or nearest road level, unless otherwise specified in the drawings.

2.2 Any special natural features such as small hillock, trees, etc., shall not be

disturbed and shall form part of light landscaped area. 2.3 The site development includes leveling and filling, outside the boundary for

approaches, construction of compound walls, drains, and pipe culverts at required locations



2.2 EXCAVATION WORK AND BACKFILLING

1.0 SCOPE 1.1 This section of the specification covers the technical requirements for excavation

and filling & around buildings, foundations, Roads, any trenches, drains, underground facilities & similar works. It also covers filling areas and plinths of building with selected materials, conveyance and disposal of surplus spoils at the waste dumps shown on the drawings and/or stacking them properly as directed by the Engineer.

1.2 The Tenderer shall be fully responsible for proper setting out works, profiling in

excavation, stacking, etc. taking adequate safety measures etc. The Tenderer shall carry out all works meant within the intent of this specification even if not explicitly mentioned herein. All works shall be executed to the satisfaction of the Engineer.

1.3 Existing trees, shrubs, any other buildings, pole lines, fences, signs, monuments,

structures, pipelines, drains, sewers or other surface or subsurface systems/ drainage facilities within or adjacent to the works being carried out which are not to be disturbed, shall be protected from damage by the Tenderer. The Tenderer shall provide and install suitable safeguards approved by the Engineer for this purpose.

1.4 Excavated material if permitted by Engineer shall be used for filling/ backfilling.

Unsuitable materialExcess material shall be disposed off as directed by Engineer at waste dump locations shown on the tender drawings.

2.0 GENERAL 2.1 The Tenderer shall make his own surveying arrangements for locating the

coordinates and positions of all work and establishing the reduced levels (RL’s) at these locations based on two reference grid lines and one bench mark which will be furnished by the Owner. The Tenderer has to provide at site all the required survey instruments, along with qualified surveyors, to the satisfaction of the Engineer so that the work can be carried out accurately and according to the specification and drawings.

2.2 The Tenderer shall control the grade in the vicinity of all excavations so that the

surface of the ground will be properly sloped or dyked to prevent surface water from running into the excavated areas during construction.

2.3 Excavation shall include removal of trees including roots & organic remains,

vegetation, grass, bushes, shrubs, poles, fences etc. that are in the area to be excavated as well as beyond the excavation line so as to ensure safety of the excavated side slopes and of men and equipment operating in the area. Before start of excavation work, joint measurements of ground level shall be taken after clearing all grass, vegetation etc.



2.4 Excavation shall include the removal of all materials required to execute the work

properly and shall be made with sufficient clearance as decided by the Engineer to permit the placing and setting of forms, inspection and completion of all works to the satisfaction of the Engineer for which the excavation was done.

3.0 CODES AND STANDARDS 3.1 All standards, specifications, acts and code of practice referred to herein shall be

the latest editions including all applicable official amendments and revisions. 3.2 In case of conflict between this specification and those (IS standards, codes etc.)

referred to here-in, the former shall prevail. 3.3 Some of the relevant Indian standards, Acts and Codes are referred to here

below:

IS: 3764 1992 Safety code for excavation work

IS: 4081 1986 Safety code for blasting and related drilling operations

IS: 4701 1982 Code of practice for earth work on canals

IS: 9759 1981 Guide lines of dewatering during construction

IS: 10379 1982 Code of practice for field control of moisture and compaction of soils for embankment and sub grade

Indian Explosives Act 1940 as updated.

4.0 EXCAVATION IN SOIL 4.1 Side and bottom of excavation shall be cut sharp and true to line and level.

Undercutting shall not be permitted. When machines are used for excavation, the last 300 mm before reaching the required level shall be excavated manually or by such equipment that soil at the required final level will be left in its natural condition. Suitability of strata (at the bottom of excavations) for laying the foundation thereon shall be determined by the Engineer.

4.2 Excavation for foundation shall be to the bottom of lean concrete and as shown on

drawing or as directed by the Engineer. The bottom of all excavations shall be trimmed to required levels and when excavation is carried below such levels by error, it shall be brought back to the specified level by filling with concrete of nominal mix (1:3:6) (cement: coarse sand: 40 mm down aggregates) as directed by the Engineer at no extra cost.

4.3 All excavation for installation of underground facilities, such as pipe lines, drain

lines etc. shall be open cuts. For deep and huge excavations and in other excavations, if required by the Engineer, the Tenderer shall submit for Engineer’s approval an “Excavation Scheme” showing the methodology to be adopted for



excavation. 4.4 When excavation requires bracing, sheeting or shoring etc. the Tenderer shall

submit drawings to the Engineer, showing arrangements and details of proposed installation. The Tenderer shall also furnish all supporting calculations as called for and shall not proceed until he has received written approval from the Engineer. However, the responsibility for adequacy of such bracing, sheeting, shorting etc. will rest with the Tenderer, irrespective of any approval of the Engineer.

4.5 The Tenderer shall have to constantly pump out any water collected in excavated

pits and other areas due to rain water, springs etc. and maintain dry working conditions at all times until the excavation, placement of reinforcement, shuttering, concreting, backfilling is completed. The Tenderer shall remove all slush/muck from the excavated areas to keep the work area dry. The Tenderer, if required, shall employ sludge pumps, for this purpose.

4.6 The Tenderer shall remove all materials arising from excavations from the vicinity

of the work either for direct filling, stacking for the subsequent filling or for ultimate disposal at the waste dumps shown on the drawings and as directed by the Engineer. In no case shall the excavated soil be stacked within a distance of 1.5 m from the edge of excavation or one-third the depth of excavation whichever is more. Material to be used for filling shall be kept separately.

5.0 EXCAVATION IN ROCK 5.1 For the work of excavation in rock, Tenderer shall engage specialized agency

having experience of excavation in rock involving wedging and blasting. The agency shall be approved by Engineer and the Tenderer shall furnish details of relevant experience in support while seeking approval for the agency. All relevant approvals from the Licensing agency and regulations shall be followed.

5.2 In case of over breaks in rock excavation, the excavated level shall be brought to

the level shown on drawings with plain cement concrete of nominal mix (1:3:6) as described earlier.

5.3 Where blasting is prohibited for any reasons or it is not practicable in the opinion

of the Engineer, then the excavation shall be carried out by chiseling, wedging or any other approved method. The decision of the Engineer in this regard shall be final binding on Tenderer.

6.0 EXCAVATION BELOW GROUND WATER TABLE 6.1 The Tenderer shall dewater and maintain dry working conditions by maintaining

the water table below the bottom of the excavation level by well-point dewatering or deep well dewatering or any other method approved by the Engineer. He shall continue doing so till excavation, concreting, curing, and all other operation included in the scope of work, which require dry condition in the area are completed.



7.0 FILLING

7.1 Materials

7.1.1 Materials to be used for filling purpose shall be approved earth, stone, sand or other inorganic materials and they shall be clean and free from shingle, salts, organic matter, large roots and excessive amount of sod, lumps, concrete or any other foreign substances which could harm or impair the strength of the substances in any manner. All clods shall be suitably broken to small pieces. When the materials are mostly rock boulders, these shall be broken into pieces not larger then 150 mm size. Sand used for filling shall be clean, medium grained and free from impurities. Fines less than 75 microns shall not be more than 20%. In any case, the materials to be used for filling purposes shall have the prior written approval of the Engineer.

7.1.2 If excavated materials are to be used for filling, then the Tenderer shall select the

materials from the stockpile, land and transport this material and execute the filling. This shall include excavation of earth, which may become hard due to laying in stockyard for a long period of time.

7.1.3 In case the materials have to be brought from pits/quarries, it shall be the

Tenderer’s responsibility for identification of such quarry areas, obtaining approval from their use from concerned authorities, excavation/quarrying loading and carriage of such material, unloading and filling at specified locations. The Tenderer shall pay any fees, royalties etc. that may have to be paid for utilization of borrow areas.

7.2 Filling Procedure 7.2.1 After completion of foundation, footings, walls and other construction below the

elevation of the final grades, and prior to filling, all temporary shoring, timber etc. shall be sequentially removed and the excavation cleaned of all trash, debris, and. perishable materials. Filling shall begin only with the written approval of the Engineer. Also, areas identified for filling shall be cleared of all soft pockets, vegetation, bushes, slash etc. In case of plinth and similar filling the ground shall be dressed and consolidated by ramming and light rolling.

7.2.2 Fill materials shall not be dropped directly upon or against any structure or facility

where there is danger of displacement or damage. Filling shall be started after the concrete/masonry has fully set and shall be carried out in such a manner so as not to cause any undue lateral thrust on any part of the structure.

7.2.3 All space between foundation (concrete or masonry) and the sides of excavation

shall be filled to the original surface after making allowance for settlement, Fill shall be placed in horizontal layers not exceeding 200 mm loose thickness. Each layer shall be watered and compacted with proper moisture content and with such equipment as may be required to obtain a compaction/ density as specified. Trucks or heavy equipment for depositing or compacting fill shall not be used within 1.50 meters of building walls, piers for operation. The methods of compaction shall be subjected to approval of Engineer under any circumstances.



7.2.4 Fill adjacent to pipes shall be free of stones, concrete etc. and shall be hand

placed and compacted uniformly on both sides of the pipes and where practicable up to a minimum depth of 300 mm over the top of pipes. While tamping around the pipes, care should be taken to avoid unequal pressure.

7.2.5 Filling shall be accurately finished to line, slope, cross section and grade as

shown on the drawings. Finished surface shall be free of irregularities and depressions and shall be within 20mm, of the specified level.

7.2.6 Where filling with stone from excavated materials is specified, it shall be from

broken pieces of boulders. At first a 75 mm thick cushion of selected earth shall be laid over which the 200mm thick graded stones shall be laid in loose layers of 200mm, then the interstices filled with properly graded fine materials consisting of selected earth brought from borrow areas. Each layer shall be watered and compacted to the specified density before the next layer is laid. However, no cushion shall be required where filling is over non-rocky surface.

7.2.7 Where filling with 65 mm down graded stone obtained from excavated, it shall be

selected stone laid over and initial 50 mm thick cushion layer of selected earth and then stone laid in 200 m loose thick layers, interstices filled with the specified density before the next layer in laid. However, no cushion shall, be required where filling is over non-rocky surface.

7.2.8 Where clean stone fill is specified, it shall consist of clean selected stone metal of

40 mm nominal size. It shall be laid in layers not exceeding 150 mm (loose) and lightly tamped before the next layer is laid. No compaction shall be required for this type stone filling.

7.3 Compaction 7.3.1 Where compaction to 95% Standard Proctor Density or more is called for, it shall

be by mechanical means only. Where access is possible, compaction shall be by 12 tonne rollers smooth wheeled, sheep foot or wobbly wheeled as directed by the Engineer. A smaller weight roller may be permitted by the Engineer in special cases, but in any case, not less than 10 passes of the roller will be accepted for each layer. Each layer shall be wetted or dried by aeration to moisture content of 3-5% above the Optimum Moisture Content to be determined by the Tenderer. Each layer shall be watered, rammed and compacted to the density as specified Engineer.

7.3.2 For compacting each sand layer, water shall be sprayed and kept flooded for 24

hours to ensure maximum compaction. Vibro-compactors shall also be used if necessary to obtain the required degree of compaction. Any temporary works required to contain sand under flooded condition shall also be undertaken. The surface of the consolidated sand shall be dressed to required levels or slope.

7.3.3 After the compacted fill has reached the desired level, the surface shall be flooded

with water for 24 hours, allowed to dry and then rammed and consolidated to avoid any settlement, at a later date. The compacted surface shall be properly



shaped, trimmed and consolidated to an even gradient or level. All soft spots shall be excavated, filled and consolidated.

7.3.4 The degree of compaction of compacted fill in place will be subject to tests by the

Engineer as the work progresses, and the Tenderer shall provide the necessary facilities to make such tests. If any test indicates that the compaction achieved is less than the specified degree of compaction, the Engineer may require fill placed subsequent to the last successful test to be removed and re-compacted by the Tenderer. Compaction procedure shall be amended as necessary to obtain satisfactory results.

7.3.5 When semi-compacted fill is specified by the Engineer, the Tenderer shall fill up

such areas with available earth from stock piles of borrow pits or directly from excavation without special compaction except that obtained by moving trucks etc.



2.3 ANTI - TERMITE TREATMENT 1.0 GENERAL 1.1 Pre-constructional anti–termite treatment shall be provided to all buildings with a

chemical barrier against the sub-terrain termites. 1.1 Anti-termite treatment being a specialized job, should be got executed through

specialized agencies only. The specialized agency should be a member of the Indian Pest Control Association.

1.3 The scope of pre-constructional anti-termite treatment covers the soil treatment

with approved chemicals in water emulsion in foundation trenches for columns, plinth beams, pile caps, brick walls, service trenches, lift pits, steps, ramps etc., in top surfaces of plinth filling, at junction of walls and floor, in expansion joints etc., in stages as detailed in this specifications and drawings, unless otherwise specified, the anti-termite treatment will be carried out as per IS : 6313 (Part-II)-2001 and or as per direction of the Engineer.

2.0 CHEMICAL TO BE USED 2.1 The following chemical in water emulsion, after approval from the Engineer, shall

be used uniformly over the area to be treated.

Chlropyrophos 2.2 The Tenderer should produce voucher (s) for the chemical purchased and should

get verified the sealed container(s) of the specified chemical from the Engineer before preparing the emulsion / use for the treatment.

3.0 GUARANTEE 3.1 The Tenderer has to furnish the guarantee for 5 (Five) years from the date of

completion of work, stating that in case of reappearance of termites within the building area due to defective materials or workmanship or due to any other reasons, the Tenderer will carry out the necessary post constructional treatment to keep the entire area free from termite, once again, without any extra cost to the Department during the guarantee period.



2.4 SOLING & HARDCORE

1.0 GENERAL 1.1 The work covered under this specification includes all type of soling work either by

rubble stones laid under floors / hardcore under foundations, hand packed, complete as per specification and applicable drawings.

2.0 RUBBLE STONE SOLING 2.1 The rubble stone shall be of best variety of black trap / granite / basalt or other

approved variety of stone available locally. The stone shall be hard, durable, free from defects and of required size and shall be approved by the Engineer before incorporation in the work.

2.2 Preparation of Surface & lying: 2.2.1 The bed on which rubble soling is to be laid shall be cleared of all loose materials,

leveled, watered and compacted and got approved by the Engineer before laying rubble soling. Cable or pipe trenches if shown in the drawing and as required by the Engineer shall be got done before the soling is started.

2.2.2 Over the prepared surface, the stone shall be set as closely as possible and well

packed and firmly set. The stones shall be of full height and shall be laid so as to have their bases of the largest area resting on the sub-grade. Soling shall be laid in one layer of 230mm or 150mm or other specified thickness and no stones shall be less than 230mm or 150mm depth or specified thickness of soling with a tolerance of 25mm.

2.2.3 After packing the stones properly in position, the interstices between them shall

be carefully filled with quarry spoils of stone chips of larger size possible to obtain a hard, compact surface. Spreading of loose spoils or stone chips is prohibited.

2.2.4 All interstices shall be filled with approved murrum. Excess murrum if any over

the surfaces shall be removed. Unless otherwise specified, the murrum shall be supplied by the Tenderer at his own cost from the selected areas. The surfaces shall then be watered and consolidated with mechanical or sufficiently heavy wooden tampers and log-rammers as approved by the Engineer to give the required slope or level and dense sub-base. After compaction, the surface shall present clean look. Adequate care shall be taken by the Tenderer while laying and compacting the rubble soling to see that concrete surfaces in contact with soling are not damaged.



4.0 HARDCORE FOR FOUNDATIONS 3.1 Where specifically mentioned in the drawings, on specific recommendation of soil

expert, hardcore layer shall be provided as a preparatory surface to receive blinding concrete/ leveling course.

3.2 Hardcore layer shall comprise of well-graded broken stones 80mm nominal size

with the following gradation:

IS Sieve designation % passing

80 mm 100

63 mm 85-100

40 mm 0-30

20 mm 0-5

10 mm 0-5

3.3 The hard broken stones layer shall be directly placed over the compacted layer of

under lying soil in layers. The stones shall be hand packed and crevices filled with broken stones.

3.4 Each layer shall be covered with clean river sand and thoroughly worked into the

crevices with a water jet. Additional layers of sand shall be placed on top and worked into the void spaces. The process shall be repeated until no more sand and water get into the voids.

3.5 Earth rammer shall be used to compact each layer if directed by Engineer. 3.6 The thickness and area covered beyond the blinding concrete shall be as

indicated in the drawings or as indicated by Engineer.



2.5 PLAIN AND REINFORCED CEMENT CONCRETE & ALLIED WORKS 1.0 SCOPE 1.1 This specification covers the general requirements for concreting to be used on

jobs using on-site production facilities including requirements in regard to handling, storage of ingredients, proportioning, batching, mixing and testing and quality assurance. This also covers the transportation of concrete from the mixer to the place of final deposit and the placing consolidation, curing, protecting, repairing and finishing of concrete.

1.2 The Tenderer shall carry out all works meant within the intent of this specification

even if not explicitly mentioned herein. All works shall be executed to the satisfaction of the Engineer.

2.0 CODES AND STANDARDS 2.1 All work shall be carried out as per the stipulations contained in various sections

of these specifications and the latest Indian Standards, Acts, Codes and best practices.

2.2 All applicable standards, specifications, etc. and codes of practice shall generally

be the latest editions, including all applicable official amendments and revisions. A complete set of all these documents shall generally be available at site, with the Tenderer.

2.3 In case of conflict between the stipulations contained in various sections of these

specifications and stipulations of Indian Standards, Codes, etc. the requirements of stipulations contained in various sections of these specifications, shall prevail over that of Indian Standards, Codes, etc.

2.4 The following are the various relevant Indian Standards:

IS : 73 1992 Specification for paving bitumen

IS : 216 1961 Specification for coal tar pitch

IS : 269 1989 Specification for 33 grade Ordinary Portland cement

IS : 280 1978 Specification for mild steel wire for general Engineering purposes

IS : 383 1970 Specification for coarse and fine aggregates from natural sources for concrete

IS : 432 (Parts I)

1982 Specification for mild steel medium tensile steel bars and hard drawn steel wire for concrete reinforcement – Mild steel & medium tensile bars

IS : 432(Parts II)

1982 Specification for mild steel medium tensile steel bars and hard drawn steel wire for concrete reinforcement - Hard drawn steel wire

IS: 455 1989 Specification for Portland slag cement

IS: 456 2000 Code of practice for plain and reinforced concrete

IS: 516 1959 Method of test for strength of concrete



IS : 650 1991 Specification for standard sand for testing of cement

IS: 702 1988 Specification for industrial bitumen

IS: 800 1984 Code of practice for general construction in steel

IS: 816 1969 Code of practice for use of metal are welding for general construction in mild steel

IS: 1161 1998 Specification for steel tubes for structural purpose

IS: 1322 1993 Specification for bitumen felts for waterproofing and damp proofing

IS: 1363 (Part 1)

2002 Hexagon head bolts, screws and nuts of product grade ‘C’ – Hexagon head bolts (size range M 5 to M 64)

IS: 1363 (Part 2)

2002 Hexagon head bolts, screws and nuts of product grade ‘C’ – Hexagon head screws (size range M 5 to M 64)

IS: 1363 (Part 3)

2002 Hexagon head bolts, screws and nuts of product grade ‘C’ – Hexagon nuts (size range M5 to M 64)

IS : 1609 1991 Code of practice for laying damp proofing treatment using bitumen felts.

IS : 1786 1985 Specification for high strength deformed steel bars and wires for concrete reinforcement.

IS: 1834 1984 Specification for hot applied sealing compound for joints in concrete

IS: 2016 1967 Plain washers

IS: 2074 1992 Specification for ready mix paint, air drying, red oxide zinc chrome

IS : 2386 (Part 1)

1963 Methods of test of aggregates for concrete – Particle size & shape

IS : 2386 (Part 2)

1963 Methods of test of aggregates for concrete – Estimation of deleterious material and organic impurities

IS : 2386 (Part 3)

1963 Methods of test of aggregates for concrete – Specific gravity, Density, voids, absorption and bulking

IS : 2386 (Part 4)

1963 Methods of test of aggregates for concrete – Mechanical properties

IS : 2386 (Part 5)

1963 Methods of test of aggregates for concrete – Soundness

IS : 2386 (Part 6)

1963 Methods of test of aggregates for concrete – Measuring mortar making properties of fine aggregates

IS : 2386 (Part 7)

1963 Methods of test of aggregates for concrete – Alkali aggregate reactivity

IS : 2386 (Part 8)

1963 Methods of test of aggregates for concrete – Petrographic examination

IS : 2502 1963 Code of practice for bending and fixing of bars for concrete reinforcement.

IS : 2571 1970 Code of practice for laying in-situ cement-concrete flooring.

IS : 2645 2003 Specification for Integral cement water proofing



compounds for cement mortar and concrete

IS : 2751 1979 Code of practice for welding of mild steel plain and deformed bars for reinforced concrete construction.

IS : 3037 1986 Specification for bitumen mastic for use in water proofing of roofs

IS : 3150 1982 Specification for hexagonal wire netting for general purposes.

IS : 3370 (Part I)

1965 Code of practice for concrete structures for the storage of liquids – General requirements

IS : 3370 (Part II)

1965 Code of practice for concrete structures for the storage of liquids- Reinforced concrete structures

IS : 3384 1986 Specification for bitumen primer for use in waterproofing & damp proofing.

IS : 3414 1968 Code of practice for design and installation of joints in buildings.

IS : 3550 1965 Methods of test for routine control for water used in Industry.

IS : 4130 1991 Safety Code for demolition of buildings.

IS : 4326 1993 Code of practice for earthquake resistant design and construction of buildings.

IS : 5525 1969 Recommendations for detailing of reinforcement in reinforced concrete work.

IS : 5624 1993 Specification for foundation bolts.

IS : 7861 (Parts I)

1975 Code of practice for extreme weather concreting –Recommended practice for hot weather concreting

IS: 8112 1989 Specification for 43 Grade Ordinary Portland Cement

IS : 10262 1982 Recommended guidelines for concrete mix design.

SP : 23 1982 Handbook of concrete mixes.

SP : 24 1983 Explanatory Handbook on IS: 456

SP : 34 1987 Handbook on concrete reinforcement and detailing.

3.0 MATERIALS 3.1 General 3.1.1 All the materials used in the manufacture of concrete shall be in accordance with

these specifications, Storage and Handling of Common Building Materials, which shall be deemed to form a part of this specification.

3.1.2 The Engineer shall have the right to inspect the sources of materials, the layout

and operation of procurement and storage of materials, the concrete batching and mixing equipments and the quality control system. The Tenderer shall arrange such an inspection and the Engineer approval shall be obtained prior to starting the work.

3.2 Aggregates 3.2.1 Aggregate shall consist of natural sand, crushed stone/gravel from a source

known to produce satisfactory aggregate for concrete and shall be chemically



inert, strong, hard, durable against weathering, of limited porosity and free from deleterious materials that may cause corrosion to the reinforcement or may impair the strength and / or durability of concrete. Aggregates shall conform to IS:383 of Metamorphic and Ignious rock classification of Granite origin.

3.2.2 Storage of aggregates: All coarse and fine aggregates shall be stacked separately in stock piles in the material yard near the work site in bins properly constructed to avoid inter mixing of different aggregates. Contamination with foreign materials and earth during storage and while heaping the materials shall be avoided. The aggregate must be of specified quality not only at the time of receiving at site but also at the time of loading into mixer.

3.3 Cement 3.3.1 The cement generally used shall be the Ordinary Portland cement 43 / 53 grade

confirming to IS 269-1989. However, any special type of cement such as High strength cement or sulphate resisting cement may be used under specific circumstances.

3.3.2 The Tenderer shall make his own arrangements for the storage of adequate quantity of cement. If supplies are arranged by the Department, cement will be issued in quantities to cover work requirements of one month or more, as deemed fit by the Engineer and it will be the responsibility of the Tenderer to ensure adequate and proper storage, which will provide complete protection from dampness, contamination and minimize caking and false set. Cement bags shall be stored in a dry enclosed shed (storage under tarpaulins will not be permitted), well away from the outer walls and insulated from the floor to avoid contact with moisture from ground and so arranged as to provide ready access. Damaged or reclaimed or partly set cement will not be permitted to be used and shall be removed from the site. The storage arrangements shall be such that there is no dead storage. Not more than 12 bags shall be stacked in any tier. The storage arrangement shall be got approved by the Engineer. Consignments of cement shall be stored as received and shall be consumed in the order of their delivery.

3.4 Reinforcement 3.4.1 Steel reinforcement bars for concrete shall be corrosion resistant TMT bars with

strength requirements conforming to Grade Fe-415 (as per IS: 1786) or grade above, produced by manufacturers listed in preferred makes.

3.4.2 Storage: Steel reinforcement shall be stored in such a manner that they are not in

direct contact with ground but stacked on top of an arrangement of timbers sleepers or the like. Bars of different classifications and sizes shall be stored separately. In cases of long storage or in coastal areas, reinforcement shall be stacked above ground level by at least 15 cm, and a coat of cement wash shall be given to prevent scaling and rusting at no extra cost to the owner. Fabricated reinforcement shall be carefully stored to prevent, distortion, corrosion and deteriorations.



3.5 Water 3.5.1 Water used for mixing and curing shall be clean and free from injurious amounts

of oils, acids, alkalis, sugar, organic materials or other substances that may be deleterious to concrete or steel. Potable water is generally considered satisfactory for mixing concrete. The maximum permissible values of impurities shall be as given in clause no. 5.4 of lS:456.

3.6 Admixtures 3.6.1 Admixtures in concrete for promoting workability, entraining air for similar

purposes may be used only after the written permission from the Engineer is obtained. These shall be free from injurious amount of chloride, etc. Addition of admixtures should not reduce the specified strength or durability of concrete and should not have detrimental effect on reinforcement. The admixtures shall conform to lS-9103 and shall be of proven make and from a reputed manufacturer. Calcium chloride as accelerating admixture is not permitted to be used other than in mass concrete works. The Tenderer shall produce latest test results carried out at approved Government Test Houses for the approval of the Engineer, before use.

3.7 EMBEDDED PARTS 3.7.1 Steel for light structural work and for preparation of inserts and embedment’s shall

conform to IS:2062. 3.7.2 Bolts to be embedded in concrete shall, unless otherwise detailed in drawings,

conform to IS:5624. Material for bolts, shall, unless otherwise mentioned in drawings or the schedule of items, be corrosive resistant/coated steel conforming to IS:2062.

3.7.3 Nuts and locknuts shall conform to IS:1363 (Part 1 to 3) for diameters 6 to 39 and

IS: 3138 for Hexagon Bolts and Nuts (M-42 to M-150) 3.7.4 Plain washers shall conform to IS:2016 and spring washers shall conform to

IS:3063. 3.7.5 Steel pipe sleeves shall conform to Medium class of IS:1161. 4.0 CONCRETE MIX, WORKABILITY & DURABILITY 4.1 Concrete mix proportions shall be selected based on the requirements of

workability, strength, and durability. The proportions of cement, aggregates and water shall be determined only by designing the mix. Design mix concrete shall be designated as M20, M25 etc.

4.2 Workability

a) Workability of fresh concrete is mainly governed by placing conditions and

compaction. The degree of workability necessary to allow the concrete to be well



compacted and to be worked into the corners of formwork and around the reinforcement shall be as stipulated under clause no. 7.0 of IS: 456.

b) Engineer may permit use of plastisizers for improving workability. use of certain other admixtures such has water proofing compounds also have an effect on workability and shall be considered during mix design.

4.3 Durability of concrete: a) Durability requirement is decided, depending on the exposure conditions as

stipulated in clause 8.2 of IS:456. is to be taken into account while designing the mix. For given aggregates, the cement content should be sufficient to make sufficiently low water cement ratio and table 5 of IS: 456-2000 shall be taken as guideline for durability considerations.

b) Stipulations of minimum cement content and limiting water cement ratio should be

considered during design of mix. 5.0 PREPARATORY WORKS 5.1 Earth surface on which direct placement of concrete is to be placed shall be

rammed and consolidated such that it does not crumble and get mixed with concrete during or after placement. If the foundation is quite wet, the same shall be kept dry and then sufficiently consolidated, if necessary, a thin top layer of the wet soil shall be removed and replaced by sand or other suitable materials as directed by the Engineer without any extra cost to the Owner. Where specified, lean concrete shall be provided in the earth stratum for receiving concrete. The surface of absorptive soil against which concrete is to be placed shall be moistened thoroughly so that no moisture will be drawn form the freshly placed concrete. In case the drawings indicate hardcore below the blinding concrete, the same shall be provided as per relevant specifications.

5.2 Preparation of concrete surface upon which additional concrete is to be placed

later, shall preferably be done by scarifying and cleaning while the concrete is between its initial and final set. This method shall be used wherever practicable and shall consist of cutting the surface with picks and stiff brooms and by use of an approved combination of air and water jet as directed by Engineer. Great care shall be taken in performing this work to avoid removal of too much mortar and the weakening of the surface by loosening of aggregate. When it is not practicable to follow the above method, it will be necessary to employ air tools to remove laitance and roughen the surface. The final resulting surface shall be a pitted surface, from which all dirt, unsound concrete, laitance and glazed mortar have been removed.

5.3 All such joints shall have continuous square bond grooves to produce a

substantial and water-tight key. Where the placement of concrete has to be resumed on a surface which has hardened, it shall be roughened, cleaned by wire or bristle brushing, compressed air, water jet etc., and thoroughly wetted.



5.0 FORMWORK AND STAGING

6.1 Formwork shall compose of steel, best quality wood or non-absorbent type plywood. Timber shall be free from significant knots and shall be of medium grain as far as possible and hard woods shall be used as caps and wedges under or over posts. Timber shall be well seasoned, free from sap, shakes, wormholes, warps or other surface defects and shall have smooth finish.

6.2 The Tenderer shall maintain necessary camber in centering for all floor slabs and beams in all spanning directions, so as to offset the deflection and assume correct shape. The camber shall have the crown of not less than 8 mm for every 5 meters span unless otherwise shown on the drawings. For cantilever, camber at free end shall be 1 in 100.

6.3 The Tenderer shall begin the removal of formwork only after approval of the Engineer. Forms of various types of structural components shall, under normal circumstances, not be removed before the minimum periods specified in Cl. 11.3 of IS:456

6.3.1 Tolerances is a specified permissible variation from lines, grade or dimensions given in drawings. Unless otherwise specified, the following tolerances will be permitted.

Tolerances for R.C. Buildings

1 Variation from the plumb

In the line and surfaces of columns, walls and in buttresses

5 mm per 2.5 m, but not more than 25 mm

For exposed corner columns and other conspicuous lines

In any bay or 5 m. maximum (+/-) 5 mm

In 10 m. or more (+/-) 8 mm.

2 Variation from the level or from the grades indicated on the drawings

In slab soffits, ceilings, beam soffist and in arises.

In 2.5 m (+/-) 5 mm.

In any bay or 5 m. maximum (+/-) 8 mm

In 10 m. or more (+/-)15mm

3 For exposed lintels, sills, parapets, horizontal grooves and other conspicuous lines

In any bay or 5 m. maximum (+/-)15mm

In 10 m. or more (+/-)10mm

4 Variation of the linear building lines from established position in plan and related position of columns, walls and partitions

In any bay 5 m. maximum (+/-) 10 mm

In 10 m. or more (+/-) 20 mm.

5 Variations in the sizes and locations of sleeves, openings in walls and floors except in the case of and for anchor bolts

(+/-) 5 mm



6 Variation in cross-sectional dimensions of columns and beams and in the thickness of slabs and walls

(+)10mm / (-)5 mm

7 Footings

variation in dimensions in plan (+) 50 mm / (-) 5 mm

Misplacement of concentricity 2% of footing within the direction of misplacement but not more than 50 mm.

Reduction in thickness (-) 5% of specified thickness subject to maximum of 50 mm.

8 Variation in steps

In a flight of stairs

Rise (+/-) 3.0 mm

Tread (+/-) 5.0 mm

In consecutive steps

Rise (+/-) 1.5 mm

Tread (+/-) 3 mm

Tolerance in other Concrete Structure

All structures

1 Variation of the constructed linear out line from established position in plan

In 5 m (+/-) 10 mm.

In 10 m. or more (+/-) 15 mm.

2 Variation of dimensions to individual structure features from established positions in plan

In 20m. or more (+/-) 25 mm.

In buried constructions (+/-) 150 mm

3 Variation from plumb, from specifies batter or from cured surfaces of all structures

In 2.5 m (+/-) 10 mm.

In 5.0 m (+/-) 15 mm.

In 10.0 m. or more : (+/-) 25 mm

In buried constructions (+/-) Twice the above limits.

4 Variation from level or grade indicated on drawings in slabs, beams, soffits, horizontal grooves and visible arises

In 2.5 m (+/-) 5 mm.

In 7.5 m. or more (+/-) 10 mm

In buried constructions (+/-) Twice the above limits

5 Variation in cross-sectional dimensions of columns, beams, buttresses, piers and similar members

(+) 10mm./(-) 5 mm.

6 Variation in the thickness of slabs, walls, arch sections and similar members

(+) 10 mm./(-) 5 mm



Footings for columns, walls and similar members

1 Variation of dimensions in plan (+) 50 mm./(-) 10 mm

2 Misplacement or eccentricity 2% of footing within the direction of misplacement but not more than 50 mm

3 Reduction in thickness 5% of specified thickness subject to a maximum of 50 mm.

In case of inclined surfaces, the deviation in the alignment of inclined surfaces shall not exceed 3 mm with reference to the theoretical alignment, for a length of 1000 mm measured vertically, subject to a maximum of 10 mm.

7.0 REINFORCEMENT PLACEMENT 7.1 All reinforcement for concrete works shall be provided as per approved drawings.

The Tenderer shall prepare and furnish to the Engineer, bar bending schedules for all RCC works for his review and approval. No work shall commence without the approval of the bar bending schedules by the Engineer in writing.

7.2 All bars shall be thoroughly cleaned before being fabricated. Pitted and defective

bars shall not be used. All steel for reinforcement shall be free from loose scales, rust coatings, oil, grease, paint or other harmful matters immediately before placing the concrete. To ensure this, reinforcements with rust coatings shall be cleaned thoroughly before bending/placement of the same.

7.3 Unless shown otherwise on the drawings, minimum clear concrete cover for

reinforcement (exclusive of plaster or other finishes) shall be as specified in Cl. 26.4 of IS:456

7.4 Special requirements in corrosive atmosphere: Unless special protective coatings are used, the appropriate measures for structures exposed to sever conditions shall be followed.

8.0 EMBEDDED PARTS 8.1 Embedded steel parts shall be supplied, fabricated and erected by the Tenderer

and shall include items such as, but not limited to, foundation , anchor bolts, pipe sleeves, equipment mounting plates, steel rolled sections with or without properly welded lugs, plate inserts, edge protection angles, as shown on the drawings, auxiliary framing for equipment supports, pegstay plugs for door and window frames, miscellaneous frames, etc. embeded parts shall not be welded to the reinforcement.



9.0 MIXING OF CONCRETE 9.1 Concrete shall be mixed in a mechanical mixer conforming to IS:1791. However,

mixing shall preferably be done at a single central batching plant, conforming to IS:4925, situated within the area allocated for the Tenderer’s particular use as directed by the Engineer. The plant shall have a mechanically operated mixer of an approved size and type, capable of ensuring a uniform distribution of the materials throughout the mass and the mass is uniform in colour and consistency. Volumetric mixing for nominal mix concrete can be done only with prior permission of EIC.

9.2 BATCHING OF CONCRETE 9.2.1 Aggregates and Cement shall always be batched by weight. A separate weighing

device shall be provided for weighing cement. Where the weight of cement is determined by accepting the weight per bag, number of bags shall be weighed separately to determine the average net weight of cement per bag and the same shall be checked regularly. Water may be measured either by weight or by volume.

9.2.2 Any solid admixture, to be added, shall be measured by weight, but liquid or semi-

liquid admixture may be measured by weight or volume. 10.0 TRANSPORTATION OF CONCRETE 10.1 Concrete shall be handled and conveyed as rapidly as practicable, from the place

of mixing to the place of final laying, by approved means, before the initial setting of the cement starts. Concrete shall be conveyed in such a way that there is no segregation or loss of any of the ingredients and maintaining the required workability. If segregation does occur during transport, the concrete shall be remixed. During very hot or cold weather, if directed by the Engineer, concrete shall be transported in deep containers, which will reduce the rate of water loss by evaporation in hot weather and heat loss in cold weather, at no extra cost to Owner.

10.2 Concrete may be conveyed and placed by mechanically operated equipment, e.g.

pumps or pneumatic placers only with the written permission of the Engineer, who shall also review the entire scheme for which comprehensive details shall be furnished by the Tenderer.

11.0 CONCRETE PLACING 11.1 Before the concrete is actually placed in position, the inside of the formwork shall

be inspected to see that they have been cleaned and oiled. Temporary openings shall be provided to facilitate inspection, especially at bottom of columns and wall forms, to permit removal of saw dust, wood shavings, binding wire, rubbish, dirt etc., Opening shall be placed or holes drilled so that these materials and water can be removed easily. Such openings / holes shall be later suitably plugged.

11.2 Formwork and reinforcement shall be approved in writing by the Engineer before



concrete is placed. Concrete shall be placed only after all preparations for casting have been approved by the Engineer and approval given to proceed with the casting in writing on pour card to be maintained by the Tenderer for this purpose and to be submitted along with the Tenderer’s bills.

11.3 Slabs, beams and similar members shall be poured in one operation. In special

circumstances, with the approval of the Engineer, these can be poured in horizontal layers, but it must be ensured that the under layer is not already hardened. Bleeding of under layer, if any, shall be effectively removed. Moulding, throating, drip course, etc. shall be poured as shown on the drawings or as desired by the Engineer.

11.4 No concrete shall be placed in wet weather or on water covered surface. Any

concrete that has been washed by heavy rain shall be entirely removed, if there is any sign of cement and sand having been washed away from the concrete mixture.

11.5 For members involving vertical placing of concrete (eg. Columns, walls, etc.),

each lift shall be deposited in horizontal layer extending the full width between shutterings and of such depth that each layer can be easily and effectively vibrated and incorporated with the layer before by means of compaction.

11.6 During hot weather (atmospheric temperature above 40 degree centigrade) the

concreting shall be done as per the procedures and precautions set out in lS:7861 (Parts I and II)

11.7 Under all ordinary conditions all foundations shall be completely de-watered and

concrete placed on the dry surface. However, when concrete placement under water is necessary, all work shall be executed in accordance with clause 14.2 of IS :456

12.0 COMPACTION 12.1 After the concrete has been placed, it shall be spaded and thoroughly compacted

by approved mechanical vibrators to a maximum subsidence without segregation and thoroughly worked around reinforcement or other embedded fixtures into the correct form and shape. Hand tamping in some cases may be allowed subject to the approval of the Engineer. Care must be taken to ensure that the inserts, fixtures, reinforcement and formwork are not displaced or disturbed during placing of concrete.

13.0 PROTECTION AND CURING OF CONCRETE 13.1 Newly placed concrete shall be protected by approved means from rain, sun and

wind. Concrete placed below ground level, shall be protected from falling earth, during and after placing. Concrete placed in ground containing any deleterious substances, shall be kept free from contact with such ground or with water draining from such ground, during placing of concrete and for a period of at least three days or as otherwise instructed by the Engineer.



13.2 The ground water around newly poured concrete shall be kept down to an approved level by pumping or other approved means of drainage. Adequate steps shall be taken to prevent floatation or flooding. Steps, as approved by the Engineer, shall be taken to protect immature concrete from damage by debris, excessive loading, vibration, abrasion, mixing with earth or other deleterious materials, etc. that may impair the strength and durability of the concrete.

13.3 As soon as the concrete has hardened sufficiently, it shall be kept in a damp or

wet condition by ponding or by covering with a layer of sacking, canvas, hessian or similar materials and kept continuously wet for at least seven days after final setting. This period may be extended, at the discretion of the Engineer, upto fourteen days. Curing of horizontal surfaces exposed to drying winds shall begin immediately after the concrete has hardened. Concrete slabs and floors shall be cured for the periods mentioned above by flooding with water of minimum 25 mm depth.

14.0 JOINTS IN CONCRETE 14.1 Joints including joint filler materials, water bars, resilient pads type vibration,

damping material in and around the sides of concrete works, etc. shall be provided as shown in the drawings or as directed by the Engineer. Where necessary or/and specified, joints shall be made watertight by use of water stops.

14.2 Construction Joints: Location and treatment of construction joints shall be as

approved by Engineer 14.3 Contraction Joints provided to eliminate tensile stresses due to shrinkage where

temperature variations are small and where there is no likelihood of expansion, such as spaces below water and earth levels and not exposed to atmosphere. At contraction joints, the reinforcement is discontinued and bond is not allowed to develop between the joint faces, thereby introducing a structural discontinuity. A contraction joint also serves as a construction joint so far as break in the pouring of concrete is concerned.

14.4 Expansion Joints provided either to completely eliminate or to significantly reduce

compressive stresses in concrete that would otherwise result by thermal expansion which might crush, buckle or crack, part of the structure. Expansion joints serve the purpose of contraction and also construction joints. Bitumen impregnated fiber board shall be used as joint filler which shall fill space between the concrete surfaces at the joints. The minimum thickness of board shall be 12mm and the material shall conform to IS:1838. Expanded polystyrene slab when used shall be of fire retarding grade (type-2) conforming to IS:4671. Density of material shall not be less than 25kg/cum.

14.5 Water stops shall be provided at the joints as a continuous diaphragm to contain

the filler material and/or to exclude passage of water or any other material into or out of the structure. The Water stops shall be nonmetallic like P.V.C. The material is to be procured from reputed manufacturers having proven records of satisfactory supply of Water Stops of similar make and shape for other jobs.



14.6 The bitumen sealing compound shall be from approved manufacturer and shall conform to the requirements of lS:1834. For joints in concrete lining on canals/reservoirs, sealing compound conforming to lS-5256 shall be used.

14.7 Polysulphide sealant shall be from approved manufacturer, conforming to

lS:12118. Materials shall consist of polysulphide polymer and a curing agent. Gun grade material shall be used unless otherwise specified. The application of the sealant shall be strictly followed as per manufacturer’s guidelines.

14.8 Metal cover strips shall be made of aluminium as shown on drawings. The

minimum thickness of aluminium strips shall be 3 mm. Aluminium alloy strip shall be corrosion resistant grade 31000 as per IS:737.

15.0 CEMENT ADDITIVES/ADMIXTURES IN CONCRETE 15.1 The admixtures shall conform to IS: 9103 and shall be of proven make and from a

reputed manufacturer. In addition, for plasticizer-cum-water proofing compound, materials shall meet the permeability requirements as per lS-2645. Similarly for plasticizer-cum retarder admixture material shall satisfy the setting time requirements of retarder and other properties of plasticizer as per IS:9103

15.2 Admixtures in concrete for promoting workability, improving strength, entraining air

or for similar purposes may be used only after the written permission from the Engineer, is obtained. Addition of admixtures shall not reduce the specified strength or durability of concrete in any case.

16.0 GROUTING 16.1 Ready mixed non-shrink cementitious grout for Grouting under base plates and

foundation pockets shall be done as indicated in the drawings, or as directed by Engineer. The contact area between the grout and base plate shall not be less than 80%

16.2 Grouting of pockets/holes in concrete: shall be done using cement-sand grout or

cement, sand and aggregate grout depending upon the size of the pockets/holes in the concrete. This mix shall generally be used for grout thickness above 40 mm for dry pack application. Normally the grade of such concrete/mortar shall not be less than the grade of parent concrete. In filling the holes of foundation bolts and expanding admixture of approved type shall be used as per manufacturer’s specification.

16.3 Surface to be grouted shall be thoroughly roughened and cleaned of all foreign

matter and laitance. The block outs, bolt holes etc. which have to be grouted, shall be cleaned thoroughly by use of compressed air just prior to taking up the grouting operation.

17.0 PRECAST CONCRETE ELEMENTS



17.1 Precast concrete elements such as fencing posts, copings, sills, shelves, trench/ pit cover slabs, louvers, etc., shall be at least of mix M-20. Concrete for Precast concrete shall comply with IS:456.

17.2 Precast concrete elements shall be cast in forms or moulds. The forms / mould

shall be of fiberglass or of steel sections for better finish. Provision shall be made in the forms and moulds to accommodate fixing devices such as nibs, clips, hooks, bolts and forming of notches and holes.

17.3 Elements shall be cast on suitable bed or platform with firm foundation. Precast

elements shall have a dense surface finish showing no coarse aggregate and shall have no cracks, crevices or other defects that would interfere with the proper placing of the units. All angles of the precast units with the exception of the angles resulting from the splayed or chamfered faces shall be true right angles.

17.4 All precast work shall be cured for at least 7 days after casting and during that

period each units shall be kept constantly watered or preferably by completely immersed in water if the size of unit so permits.

17.5 No precast unit shall be lifted until the concrete reaches a strength of at least

twice the stress to which the concrete may be subjected at the time of lifting. The precast articles shall be stored for 28 days before erection or being built in so that the concrete shall have sufficient strength to prevent damage to units when first handled.

18.0 SAMPLING, TESTING AND QUALITY ASSURANCE 18.1 Samples from fresh concrete shall be taken in accordance with IS:1199 and

tested as per IS:516. Normally only compressive test shall be performed, but the Engineer may require other tests to be performed in accordance with lS-516. For Trial Mixes & mix design, at least four trial mixes shall be made with minimum 6 test cubes for each mix. For works tests the minimum frequency of sampling of concrete of each grade shall be according to clause 15.2.2 of lS:456. However, after getting continuous satisfactory results, the Engineer may at his discretion reduce the frequency of sampling. All sampling and testing shall be done in the presence of the Engineer.

18.2 To control the consistency of concrete from every mixing, slump tests and

compaction factor tests in accordance with lS-1199 shall be carried out by the Tenderer as directed by the Engineer. Slumps corresponding to the test specimens shall be recorded for reference.

18.3 If the strength of the laboratory-controlled cubes, for any portion of the concrete

work, falls below the compressive strength specified, the Engineer shall have the right to order a change in the proportions or the water content for the remaining portion of the structure.

18.4 If the strength of the works cured test cubes falls below the specified strength, the

Engineer shall have the right to require provisions for temperature and moisture control during the period of curing as necessary to secure the required strength,



and may require retests in accordance with the standard method of securing, preparing and testing specimens from hardened concrete for compressive and flexural strengths, or load tests to be made on the portion of the building so affected. All such tests shall be made at the Tenderer’s expense.

18.5 Unacceptable concrete work shall be dismantled by the Tenderer and replaced by

fresh work, meeting the specification requirements. In the course of dismantling, if any damage is done to the embedded items or adjacent structures, the same shall be made good, by the Tenderer, to the satisfaction of the Engineer, at no extra cost.

18.6 Only as a very special case and that too in non-critical areas, the Engineer may

accept concrete work which is marginally unacceptable as per the criteria laid down in lS-456. For such accepted work, payment shall be made at a reduced rate prorata to the concrete cube strength obtained, against that stipulated.

18.7 If directed by Engineer, Ultrasonic tests and core tests on structures to ascertain

the quality and grade of concreting shall be carried out. Tenderer shall arrange for the specialised agency for conducting the test at his own cost. The Tenderer shall provide all the necessary facilities and arrangement for conducting the test at site in terms of access, scaffolding etc. In case of any defects, the Tenderer shall rectify the same as directed by the Engineer. Rebound hammer test shall be carried out for ascertaining the quality of concrete work, as directed by the Engineer.

18.8 Engineer, if he so desires, may order for tests to the carried out on cement, sand,

coarse aggregate, water etc., in accordance with the relevant Indian Standards. 19.0 APPLICATION OF LIVE LOAD 19.1 The designated live load shall be allowed on any structure only after 28 days,

after proper curing is carried out on the last concrete poured in structure.



2.6 MASONRY AND ALLIED WORKS

1.0 SCOPE This section of the specification covers providing, constructing of masonry and

allied works including DPC and plinth protection. 2.0 GENERAL REQUIREMENTS 2.1 All workmanship shall be in accordance with the latest standards and best

possible practice. Masonry work shall be true to line & level as shown on drawings. All such masonry shall be tightly built against structural members and bonded with dowels, anchors, inserts, etc. as shown on the drawings.

2.2 The Tenderer shall carryout all works for setting out the building lines, locating the

co-ordinates and establishing the reduced levels (RL’s) on the basis of reference grid lines and bench mark, which shall be furnished by the Owner, at one or more locations.

2.3 Any approval, instructions permission, checking, review, etc. whatsoever by the

Engineer shall not relieve the Tenderer of his responsibility and obligation regarding adequacy, correctness, completeness, safety, strength, quality, workmanship, etc.

3.0 CODES AND STANDARDS 3.1 All applicable standards, acts and codes of practice referred to shall be the latest

editions including all applicable official amendments and revisions. A complete set of all these documents shall generally be available at site, with the Tenderer.

3.2 In case of conflict between this specification and those (IS Standards, Codes etc.)

referred to in clause 3.3 the former shall prevail. 3.3 Some of the applicable Indian standards, Codes, etc. are referred to here below:

IS: 177 1992 Specification for Common burnt clay bricks

IS: 2116 1980 Specification for sand for masonry mortars

IS: 2212 1991 Code of practice for brick work

IS: 2250 1981 Code of practice for preparation and use of masonry mortar

IS: 2386 (Part 1) 1963 Methods of test for aggregate for concrete – Particle size & shape

IS: 2386 (Part 2) 1963 Methods of test for aggregate for concrete – Estimation of deleterious materials and organic impurities

IS: 2691 1988 Specification for burnt clay facing work

IS: 3495 (Part 1) 1992 Method of tests for burnt clay building bricks – Determination of compressive strength

IS: 3495 (Part 2) 1992 Method of tests for burnt clay building bricks –



Determination of water absorption

IS: 3495 (Part 3) 1992 Method of tests for burnt clay building bricks – Determination of efflorescence

IS: 3495 (Part 4) 1992 Method of tests for burnt clay building bricks – Determination of warpage

IS: 4031 (Part 5) 1998 Methods of physical tests for hydraulic cements - Determination of initial and final setting time

IS: 4031 (Part 7) 1998 Methods of physical tests for hydraulic cements - Determination of compressive strength of masonry cement

IS:4130 1991 Safety code during demolition of buildings

IS:4326 1993 Code of practice for earth quake resistant design and construction of buildings

SP: 20 1991 Hand book on masonry design & construction

SP: 25 1984 Handbook on causes and prevention of cracks in buildings

IS:2185

CC Block Masonry

4.0 STONE MASONRY 4.1 Random rubble masonry: The rubble shall be of the best quality trap / granite /

ballast stones obtained from the approved quarry. The sample of the stone, to be used shall be got approved from the Engineer. All stones shall, generally be freshly quarried and shall be sound, dense, hard, free from segregation, cracks, weathered portions and other structural defects or imperfections, tending to off set soundness and strength. The percentage of water absorption shall generally not exceed 5% by weight. All stones shall be wetted before use. Stones shall be neatly worked to requisite sections and forms and shall have fully dressed beds and joints. At least 50% of the stones shall be 0.015 cum. in content when reckoned individually. The length of stones for stone masonry shall not exceed three times the height and the breadth or base shall not be greater than three fourth the thickness of wall, or not less than 15 cm. The height of stone may be upto 30 cm. Stones shall be laid on the natural beds and shall run sufficiently inside the wall thickness. No hollow space shall be left out and inter spaces of stones being filled with mortar and stone chips, driven hard and not with mortar only.

4.2 All mortar to be used shall be of proportion (1:6). Cement, sand and water to be

used shall conform to their relevant specifications as described under cement concrete. The masonry shall be laid to plumb, lines levels, curves, shapes as shown in drawings. All required holes for passage of water or pipes are to be embedded during construction as specified.

4.2.1 All stones shall be wetted before laying in masonry. Concrete surfaces of

columns, beams, lintels, chajjas etc. coming in contact with masonry shall be properly chipped, washed and wetted before start of masonry work. The concrete surface coming in contact of masonry shall be given a thick coat of cement slurry



as the masonry work progress in height. Clean chips and sprawls carefully selected to fit in the space shall be wedged into the mortar joints and beds wherever necessary to avoid thick beds or joints or mortar. However, proper shaping and dressing of stones shall be done prior to their laying in masonry and hammering shall not be resorted to often after the stones are laid in position. The bond stones shall be used in every square meter area of masonry wall and shall extend from front to back to thin walls having width of 600 mm. and shall overlap by at least 150 mm. in walls having thickness more than 600 mm. when laid from both sides. When the work has to be started on the old or the one completed a long while ago or in the previous working seasons. Care shall be taken to roughen and clean old surface satisfactorily without disturbing the masonry before laying the new masonry. It shall be wetted before laying the bedding mortar.

4.3 When practicable, the whole masonry in any structure shall be carried out upto a

uniform level throughout. But when breaks are unavoidable in carrying the work continuously in uniform level, sufficiently long steps shall be left. All junction of walls shall be formed at the time when walls are being built. Cross walls should be carefully bonded into the main walls. All masonry built in cement mortar shall be kept continuously wet for 14 days from the date of laying. Should the mortar perish i.e. becomes dry, white or powder through neglect of watering and if the masonry shows hollow joints or non adherence of mortar to the stones or if the work does not conform to drawings and specifications, the work shall be pulled down and rebuilt by the Tenderer at his own cost and risk. All masonry shall be thoroughly cleaned and washed down on completion and all stains, adhering mortar removed from the surface and raking of joints carried out as the scaffolding is being lowered and removed. Holes left in masonry for supporting scaffolding shall be filled and made good before pointing / plastering.

4.4 Coursed rubble masonry: The face of the stones shall be square / rectangular in

shape and shall be so dressed alround that those can be set on proper bases and shall render uniform joints. The stones may have bushing on the face but shall not project more than 40 mm. the external faces shall be laid in courses of about 200 mm. height or as specified and the internal face shall be finished with rubble backing.

5.0 BRICK MASONRY MASONRY: 5.1 Bricks shall be of best quality and should be approved by the Engineer before

incorporation in the work. Minimum crushing strength of the solid blocks or bricks shall be 35 kg /sqcm. at 28 days

• CC BLOCK MASONRY: Block masonry work shall be solid cement concrete blocks as per IS 2185 using

cement mortar of prortions as specified in all types of foundations and plinth in, walls, pillars, drains, steps culvert etc. and at any other location, of circular, curved or any shapes including moulding and cut works, providing weep holes at all leads, heights and depths, curing scaffolding complete with all bye works as per



drawing, specification and instructions of the engineer, with bricks of approved quality and class designation 5 having compressive strength of 4-6 N/sq.mm.

• Autoclaved Aerated Cement Blocks (AAC Blocks ): Blocks are available as hollow and solid concrete blocks, hollow and solid light

weight concrete blocks, autoclaved aerated concrete blocks, concrete stone masonry blocks and soil based blocks.

Blocks shall be unloaded one at a time and stacked in regular tiers to minimize

breakage and defacement. These shall not be dumped at site. The height of the stack shall not be more than 1.2 m. The length of the stack shall not be more than 3.0 m, as far as possible and the width shall be of two or three blocks.

Normally blocks cured for 28 days only should be received at site. In case blocks

cured for less than 28 days are received, these shall be stacked separately. All blocks should be water cured for 10 to 14 days and air cured for another 15 days; thus no blocks with less than 28 days curing shall be used in building construction.

Blocks shall be placed close to the site of work so that least effort is required for

their transportation. Blocks manufactured at site shall be stacked at least for required minimum curing

period as given IS. The date of manufacture of the blocks shall be suitably marked on the stacks of

blocks manufactured at factory or site 6.0 DAMP PROOF COURSE (DPC) 6.1 Damp proof course shall be 50 mm thick (unless specified otherwise) consisting of

cement concrete in the proportion (1: 1½: 3) (1 cement, 1 ½ sand, 3 stone chips 10 mm down) with admixture of a water proofing compound as approved by the Engineer.The percentage of admixture shall be as per manufacturer’s specification.

6.2 The surface of the brick work/ stone masonry work shall be leveled and prepared

before laying the cement concrete. Edges of DPC shall be straight and even. The side shuttering shall consist of wooden forms and shall be strongly and properly fixed so that it does not get disturbed during compaction and mortar does not leak through.

6.3 The concrete mix shall be of workable consistency and dense. When the side shuttering is removed the surface should come smooth without any honey combing. The top surface shall be double chequerred and cured by ponding for at least 7 days. Cement concrete shall be allowed to dry for 24 hours after curing and hot bitumen of grade 80/100 Conforming to IS: 702 at the rate of 1.7 kg/sqm shall be applied over the dried surface of cement concrete properly cleaned with brush and finally with a cloth soaked in kerosene oil. The bitumen shall be applied uniformly so that no blank spaces are left anywhere.



7.0 PLINTH PROTECTION

7.1 Plinths of all buildings shall be protected with 1200 mm wide plinth protection consisting of 50 mm thick paver tiles over 75- 100mm thick RCC 1:2:4 over 75mm thick PCC 1:4:8 using 40mm metal, rammed consolidated with murram. Plinth protection shall be laid with a minimum outward slope of 1:50.

8.0 SAMPLING TESTING AND QUALITY CONTROL 8.1 The Tenderer shall carry out all sampling and testing in accordance with the

relevant Indian Standards and/or International Standards and shall conduct such tests as are called for by the Engineer. Where no specific testing procedure is mentioned, the tests shall be carried out as per the prevalent accepted Engineering practice to the directions of the Engineer. Tests shall be done in the field and at a laboratory, approved by the Engineer and the Tenderer shall submit to the Engineer, the test results in triplicate within three days after completion of a test. The Engineer may, at his discretion, waive some of the stipulations given below, for small and minor operations.

8.2 Material/work found unsuitable for acceptance, shall be removed and replaced by

the Tenderer. The works shall be redone as per specification requirements and to the satisfaction of the Engineer.

8.3 All masonry shall be built true and plumb within the tolerances prescribed as

below. Care shall be taken to keep the perpends properly aligned. a) Deviation in verticality in total height of any wall of a building more than one storey

in height shall not exceed +/- 12.5 mm. b) Deviation from vertical within a story shall not exceed +/- 6 mm per 3 m height. c) Deviation from the position shown on the plan of any brickwork more than one

storey in height shall not exceed 12.5 mm. d) Relative displacement between load bearing walls in adjacent storeys intended to

be in vertical alighment shall not exceed 6 mm. e) Deviation of bed joint from horizontal in any length upto 12 m shall not exceed

6mm, and in any length over 12m it shall not exceed 12.5 mm total. f) Deviation from the specified thickness of bed-joints, cross-joints or perpends shall

not exceed ± 3 mm.



2.7 PLASTERING & POINTING

1.0 SCOPE 1 .1 This specification covers the plastering work on brick or concrete faces of

specified thickness with ural features wherever necessary. For application of Cement and Cement lime - plaster finishing. IS:1661-1972 “Code of practice for application of cement and lime plaster finishes” shall be applicable.

2.0 MIX 2.1 Mortar for plastering in the proportion as specified on drawings/ specification, shall

be mixed in a dry state and then wetted and mixed thoroughly to obtain the required consistency. The mortar shall be mixed in an approved manner including machine mixing if desired by the Engineer and in batches so that the mortar is consumed within half an hour of mixing. Any mortar for plaster which is partially set shall be rejected and removed from site.

2.2 The mix for plastering shall be as follows:

Main walls (CC block masonry)

Outside Plaster 18 mm thick in two coats under layer 12mm cement plaster 1:5 and top layer 6mm thick cement plaster 1:3 finished rough sponge.

Inside Plaster 12 mm thick (1 : 4), (1 Cement, 4 Fine sand)

Partition walls 12 mm thick (1: 4), (1Cement, 4 Fine sand) on finished side and 15mm on rough side.

Concrete Ceiling Plaster 6 mm thick – (1 : 4), (1Cement, 4 Fine sand)

3.0 APPLICATION 3.1 Before application of plaster, surface is to be prepared conforming to IS:1661

latest revision. 3.2 In all plaster work, mortar shall be applied with somewhat more than that the

required thickness and well pressed into the joint and in the surface and rubbed and levelled with a flat wooden rule to give required thickness.

3.3 Plaster, when more than 12 mm thick, shall be applied in two coats, base coat

followed by the finishing coat. Thickness of base coat shall be just sufficient to fill up all unevenness in the surface; no single coat, however, shall exceed 12 mm in thickness. The undercoat shall be thicker than the upper coat. The overall thickness of the plaster shall not be less than the minimum thickness shown in the drawings or as specified. The undercoat shall be allowed to dry and shrink before



applying the second coat of plaster. 3.4 Cement mortar for plastering work shall be used within 30 minutes after adding

water to cement and should be kept agitated at intervals of 10 minutes. 3.5 The undercoat shall be scratched or roughened before it is fully hardened to form

a mechanical key. The method of application shall be ‘thrown on’ rather than ‘applied by trowel’. The finished surface shall be true to line and plumb and the Tenderer shall without any extra cost to Owner make up any irregularity in the masonry/ concrete work with plaster. The mortar shall adhere to the surface intimately when set and there should be no hollow sound when struck. All vertical edges of pillars, doorjambs etc. shall be chamfered or rounded off as directed by the Engineer. All corner must be finished to their true angles or rounded. Any plastering that is damaged shall be repaired and left in good condition at the completion of the job without any extra cost to Owner.

3.6 All joints between RCC and masonary shall be provided with 200mm wide wired

chicken mesh. 3.7 Cement Pointing shall be done on exposed masonry. Exposed faces shall be

cement rule pointed with (1:3) CM. The mortar shall be raked out of the joints to a depth of 12 mm. The dust shall be brushed out of the joints and the wall well wetted. The pointing shall be kept wet for 7 days. During this period it shall be suitably protected from all damages.

3.8.1 Wall punning: For plastered surface, where an even smooth surface is specified,

cement based wall putty punning as per manufactures specifications. The thickness of punning shall not be less than 2 mm and not more than 3 mm. The plastered surface shall be saturated with water before application of the punning. The punning shall be applied by skilled workmen and given a smooth and even finish as directed by Engineer.



2.8 FLOORING & ALLIED WORKS 1.0 GENERAL 1.1 Base: The base to receive the finish either formed concrete sub-base or floor slab

covered under other relevant specifications. 1.2 Only workers specially experienced in particular items of finishing work shall be

engaged; where such workers are not readily available, with the Engineer’s permission, experienced supervisors recommended by the manufacturer shall be engaged. In particular case where the Engineer so desire, the Tenderer shall get the finishing items installed by the manufacturer.

1.3 The surface to be treated shall be thoroughly examined by the Tenderer. Any

rectification necessary shall be brought to the notice of the Engineer and his approval shall be obtained regarding method and extent of such rectification work. For all types of flooring, skirting, dado and similar works, the base to receive the finish shall be adequately roughened by chipping, raking out joints and cleaning thoroughly all dirt, grease etc., with water and hard brush and detergent if required, unless otherwise directed by the manufacturer of any special finishing treatment, the base shall be thoroughly soaked with water and all excess water mopped up. The surface shall be done dry where adhesive are used for fixing the finishes. Prior to commencement of actual finishing the approval of the Engineer shall be taken as to the acceptability of the surface.




referred to in clause 3.3 the former shall prevail. 2.3 Some of the applicable Indian standards, Codes are referred below:

IS :1237 1980 Specification for Cement concrete flooring tiles

IS : 1443 1972 Code of practice for laying and finishing of cement concrete flooring tiles.

IS : 2114 1984 Code of practice for laying in situ terrazzo floor

IS : 2571 1970 Code of practice for laying-in-situ concrete flooring

IS : 5318 1969 Laying of flexible sheet and tile flooring

IS : 4441 1980 Code of practice for use of silica type chemical resistant mortar

IS : 4457 1982 Specification for Ceramic unglazed vitreous acid resistant tiles.

IS : 13753 1993 Specification for dust pressed ceramic tiles with water absorption of E> 10% Group (B III)

IS : 13753 1993 Specification for dust pressed ceramic tiles with water



absorption of 6% <E< 10% Group (B II b)

IS : 13753 1993 Specification for dust pressed ceramic tiles with water absorption of 3% <E< 6% Group (B II a)

IS : 13753 1993 Specification for dust pressed ceramic tiles with low water absorption of E< 3% Group (B I)

3.0 MATERIALS 3.1 Materials required for individual finishing items are specified under respective

items. In general, all such materials shall be as per relevant IS Codes where available. In all cases these materials shall be of the best quality available indigenously unless specified otherwise.

3.2 The materials for finishing items must be procured from well-reputed specified

manufacturers and on the basis of samples approved by the Engineer.The materials shall be ordered, procured and sored well in advance to avoid compulsion to use substandard items to maintain the construction schedule.

4.0 INTEGRAL FINISHING TO CONCRETE BASE 4.1 While the surface of the concrete laid as per specification for “cast-in situ concrete

and allied works” has been fully compacted and levelled but the concrete is still ‘green’, thick slurry made with neat cement shall be applied evenly and worked in with iron floats. When the slurry starts to set, it shall be pressed with iron floats, to have a firm compact smooth surface without any trowel mark or undulations. This finish shall be as thin as possible by using 2.2 Kg of cement per sqm. of area. The surface shall be kept in shade for 24 hours and then cured for at least 7 days continuously by flooding with water. The surface shall not be subjected to any load or abrasion till 21 days after laying. As desired by the Engineer, the surface, while still ‘green’ shall be indented by pressing strings. The markings shall be of even depth, in straight lines and the panels shall be of uniform and symmetrical patterns.

5.0 IPS FLOORING (Concrete Floor finish with floating Coat of Neat Cement) 5.1 It shall consist of an underbed and topping laid on an already laid and mature

concrete base. 5.2 Thickness 5.2.1 It shall have thickness of 40 mm for horizontal and 20 mm for vertical surfaces

unless otherwise specified. All junctions between vertical and horizontal work shall be rounded neatly to a uniform radius of 25 mm.

5.3 Underbed Mix 5.3.1 The underbed for floor and similar horizontal surfaces consists of a mix of 1 part

cement, 2 parts sand and 4 parts stone chips by volume. For vertical surfaces the mix shall consist of 1 part cement to 3 parts sand by volume. The sand shall be



coarse. The stone chips shall be 12.5 mm down well graded. Only sufficient water to be added to give a workable consistency.

5.4 Topping Mix 5.4.1 The topping shall be floating coat of neat cement using not less than 2.2 kg of

cement per sq. m. area. 5.5 Laying 5.5.1 The IPS flooring including the underbed shall be laid in alternate bays or in

chequered board pattern. No panel shall be cast in contact with another already laid till the contraction of the latter has already taken place. The maximum area of each panel shall be 5 m x 5m. A cement grout shall be applied and worked in to the surface to receive the finish, the underbed then laid, compacted and levelled to proper grade with a screed or float. The requisite slope as shown in the drawings or directed by the Engineer shall also be provided in under bed only maintaining a minimum thickness of 25 mm at the edges. The topping shall be applied evenly on the underbed while it is not fully set but firm enough and rolled and pressed to get full bond. The topping shall be trowelled to a dense finish to the satisfaction of the Engineer. After the surface is sufficiently set, the finished floor shall be kept moist for 7 days for curing.

6.0 GLAZED TILE FINISH 6.1 This finish shall be composed of glazed earthware tiles of approved make and

quality, with an underbed laid over a concrete or masonry base. 6.2 Thickness 6.2.1 The total thickness shall be minimum 20 mm including the underbed. 7.0 VITRIFIED CERAMIC TILE FINISH

The vitrified ceramic tiles shall be polished & of approved shade and of size 600 x 600 mm with minimum thickness as per approved manufactured specifications and shall be compact and homogenous throughout its cross-section. These shall be made of finest white clay, quartz, feldspars and calcined metal oxides pressed to minimum 450 kg/cm2 and shall be fully sintered at a temperature of around 1200º C. Technical specifications shall be as per international standards ISO-13006EN176 and following properties shall be maintained:

Sl. No. Property International

Standard ISO-136 EN176

Method of Testing

1 Deviation in length + 0.6% EN98

2 Deviation in thickness + 5.0% EN98

3 Straightness of sides + 0.5% EN98

4 Rectangularity + 0.6% EN98



5 Surface Flatness + 0.5% EN98

6 Water absorption <0.5% EN99

7 MOHS Hardness >6 EN101

8 Flexural strength >27N/mm2 EN100

9 Abrasion resistance <204 mm3 EN12

10 Skid resistance >0.4 ASTM C-1028

11 Breaking strength 1113 N ASTM C-648

12 Density >2 DIN S-1082

ACCEPTANCE CRITERIA The finish shall be checked specially for

a) Level, slope, plumb as the case may be b) Pattern, and symmetry c) Alignment of joints, dividing strips etc. d) Colour, texture e) Surface finish f) Thickness of joints g) Details of edges, junction etc h) Performance

8.0 MARBLE STONE FLOORING Dressing of Slabs Every stone shall be cut to the required size and shape, fine chisel dressed on all sides to the full depth so that a straight edge laid along the side of the stone shall be fully in contact with it. The top surface shall also be fine chisel dressed to remove all waviness. In case machine cut slabs are used, fine chiesel dressing of machine cut surface need not be done provided a straight edge laid any where along the machine cut surfaces is in contact with every point on it. The sides and top surface of slabs shall be machine rubbed or table rubbed with coarse sand before paving. All angles and edges of the marble slabs shall be true, square and free from chippings and the surface shall be true and plane. The thickness of the slabs shall be 18, 30 or 40 mm as specified in the description of the item. Tolerance of + 3% shall be allowed for the thickness. In respect of length and breadth of slabs a tolerance of + 2% shall be allowed. Laying Base concrete or the RCC slab on which the slabs are to be laid shall be cleaned, wetted and mopped. The bedding for the slabs shall be with cement mortar 1:4 (1 cement : 4 coarse sand) or as given in the description of the item. The average thickness of the bedding mortar under the slab shall be 20 mm and the thickness at any place under the slab shall be not less than 12 mm. The slabs shall be laid in the following manner: Mortar of the specified mix shall be spread under the area of each slab, roughly to the average thickness specified in the item. The slab shall be washed clean before laying. It



shall be laid on top, pressed, tapped with wooden mallet and brought to level with the adjoining slabs. It shall be lifted and laid aside. The top surface of the mortar shall then be corrected by adding fresh mortar at hollows. The mortar is allowed to harden a bit and cement slurry of honey like consistency shall be spread over the same at the rate of 4.4 kg of cement per sqm. The edges of the slab already paved shall be buttered with grey or white cement with or without admixture of pigment to match the shade of the marble slabs as given in the description of the item. The slab to be paved shall then be lowered gently back in position and tapped with wooden mallet till it is properly bedded in level with and close to the adjoining slabs with as fine a joint as possible. Subsequent slabs shall be laid in the same manner. After each slab has been laid, surplus cement on the surface of the slabs shall be cleaned off. The flooring shall be cured for a minimum period of seven days. The surface of the flooring as laid shall be true to levels, and, slopes as instructed by the Engineer-in-Charge. Joint thickness shall not be more than 1 mm. Due care shall be taken to match the grains of slabs which shall be selected judiciously having uniform pattern of Veins/streaks or as directed by the Engineer-in-Charge. The slabs shall be matched as shown in drawings or as instructed by the Engineer-in-Charge. Slabs which are fixed in the floor adjoining the wall shall enter not less than 12 mm under the plaster skirting or dado. The junction between wall plaster and floor shall be finished neatly and without waviness. Marble slabs flooring shall also be laid in combination with other stones and/or in simple regular pattern/design as described in item of work and/or drawing. Polishing and Finishing Slight unevenness at the meeting edges of slabs shall then be removed by fine chiselling and finished in the same manner as specified in 11.10.3 except that cement slurry with or without pigments shall not be applied on the surface before each polishing. Measurements Marble stone flooring with different kind of marble shall be measured separately and in square metre correct to two places of decimal. Length and breadth shall be measured correct to a cm before laying skirting, dado or wall plaster. No deduction shall be made nor extra paid for voids not exceeding 0.20 square metre. Deductions for ends of dissimilar materials or other articles embedded shall not be made for areas not exceeding 0.10 square metre. Nothing extra shall be paid for laying the floor at different levels in the same room. Steps and treads of stairs paved with marble stone slabs shall also be measured under the item of Marble Stone flooring. Extra shall, however, be paid for such areas where the width of treads does not exceed 30 cm. Nosing for treads shall be measured in running metre and paid for extra. The width of treads shall be measured from the outer edge of the nosing, as laid, before providing the riser. Rate The rate shall include the cost of all materials and labour involved in all the operations described above. However, extra shall be paid for making special type of pattern/design/flowers as per drawings. No deductions shall be made in rate even if flooring is done without any pattern/design.



2.9 WOODEN WORK, CARPENTRY & JOINERY

1.0 SCOPE This shall include supply, fitting and fixing of timber frames to doors and windows

with M.S. Holdfasts, panelled or flush doors, windows, shutters, etc. as shown in drawings, including a prime coat of approved paint/varnish or fixing of plastic laminate where called for. This shall also include the supply and fixing of all hardware and fixtures.




referred to in clause 2.3. the former shall prevail. 2.3 Some of the applicable Indian standards, Codes, etc. are referred to here below:

IS: 204 (Part 1) 1991 Specification for Tower bolts- ferrous metals ;

IS: 204 (Part 2) 1992 Specification for Tower bolts- Non ferrous metals

IS: 205 1992 Specification for Non-ferreus metal butt hinges

IS: 206 1992 Specification for Tee and strap binges

IS: 207 1964 Specification for Gate and shutter hooks and eyes

IS: 208 1996 Specification for Door handles

IS: 281 1991 Specification for Mild steel sliding door bolts for use with padlocks.

IS: 287 1993 Recommendation for maximum permissible moisture contents of timber used for different purposes.

IS: 303 1989 Specification for Plywood for general purpose

IS: 362 1991 Specification for Parliament hinges

IS: 363 1993 Specification for Hasps and staples

IS: 364 1993 Fanlight catch

IS: 401 2001 Code of practice for preservation of timber

IS: 451 1999 Technical supply condition for wood screws

IS: 452 1973 Specification for Door springs, vatl-tail type

IS: 453 1993 Specification for Double acting spring hinges



IS: 723 1972 Specification for Steel counter sunk head wire nails

IS: 729 1979 Specification for Drawer locks, cupboard locks, and box locks

IS: 848 1974 Specification for Synthetic resin adhesives for plywood (Phenolic & Aminoplastic)

IS: 851 1978 Specification for Synthetic resin adhesive for construction work (non structural ) in wood

IS: 852 1994 Specifications for animal glue for general wood working purposes.

IS: 1019 1974 Specification for Rim latches

IS: 1141 1993 Code of practice for seasoning of timber

IS: 1200 (Pt. XIV)

1984 Method of measurement of Building and Civil Engineering works - Glazing

IS: 1200 (Pt. XXI)

1973 Method of measurement of Building and Civil Engineering works- Wood work and joinery

IS: 1328 1996 Specification for Veneered decorative plywood

IS: 1341 1992 Specification for Steel Butt hinges

IS: 1378 1987 Specification for Oxidized copper finishes

IS: 1658 1977 Specification for Fiber hard board

IS: 1659 1990 Specification for Block boards

IS: 1823 1980 Specification for Floor door stoppers

IS: 1868 1996 Specification for Anodic coating on Aluminium

IS: 1911 1967 Schedule of unit weights of building materials

IS: 2191 (Part - 1)

1983 Specification for wooden flush door shutters (cellular & hollow core type) – plywood face panels

IS : 2191 (Part -2)

1983 Specification for wooden flush door shutters (cellular & hollow core type) - Particle board face panels and hard board

IS: 2202 (Part 1) 1999 Specification for wooden flush door shuters (solid core type) – plywood face panels

IS: 2202 (Part -2 1983 Specification for wooden flush door shuters (solid core type) – Particle board face panels and hard board

IS: 2209 1976 Specification for Mortise locks (vertical type)

IS: 2380 (parts 1 to 21)

1977 Method of test for wood particle board and boards from lignocellulosic materials

IS: 2380 (Part 22)

1981 Method of test for wood particle board and boards from lignocellulosic materials – Determination of surface gulability

IS: 2380 (Part 23)

1981 Method of test for wood particle board and boards from lignocellulosic materials – Vibration test for particle boards



IS: 2681 1993 Non ferrous metal sliding door bolts (aldrops) for use with pad locks

IS: 2835 1987 Flat transparent sheet glass (3rd Revision).

IS: 3087 1985 Specification for wood particle board (medium density) for general engineering purpose

IS: 3097 1980 Specification for Veneered particle boards (1st Revision)

IS: 3400-(Pt.II) 1980 Method of test for vulcanized rubbers -Hardness

IS:3400-(Pt.IV) 1987 Method of test for vulcanized rubbers -Accelerated aging

IS:3400-(Pt.IX) 1978 Method of test for vulcanized rubbers -Relative density and density

IS: 3564 1986 Specification for Door closers (Hydraulically regulated)

IS: 3618 1966 Phosphate treatment of iron and steel for protection against corrosion

IS: 3813 1967 Specification for ‘C’ hooks for use with swivels

IS: 3818 1992 Specification for Continuous (Piano) hinges

IS: 3847 1992 Specification for Mortise night latches

IS: 4020 (Part 1 to 16)

1998 Methods of tests for wooden flush Doors (Type tests)

IS: 4021 1995 Specification for Timber door, window and ventilator frames

IS: 4827 1983 Electroplated coating of nickel and chromium on copper and copper alloys

IS: 4948 2002 Specification for Welded steel wire fabric for general use.

IS: 4992 1975 Specification for Door Handles for mortise locks (vertical type)

IS: 5187 1972 Specification for Flush bolts

IS: 5523 1983 Method of testing anodic coating on aluminium & its alloys.

IS: 5930 1970 Specification for Mortise latch (vertical types)

IS: 6318 1971 Specification for Plastic window stays & fasteners

IS: 6607 1972 Specification for Rebated mortise locks (vertical type)

IS: 6760 1972 Specification for Slotted countersunk head wood screws

IS: 7196 1974 Specification for Hold fasts

IS: 7197 1974 Specification for Double action floor springs (without oil check) for heavy doors

IS: 7534 1985 Specification for Mild steel bolts with holes for padlocks



3.0 MATERIALS 3.1 Timber 3.1.1 Unless otherwise specified, all timber shall be best quality well seasoned free from

large or loose knots, cracks or other defects. Where specified, timber shall be treated with approved wood preservative before use. Before starting the carpenter’s work, the Tenderer shall have the rough timber approved by the Engineer

3.2 Laminated Plastic Sheets 3.2.1 All laminated plastic sheets shall be minimum 1.00mm thick and shall be Formica,

Decolam or approved equivalent make. The colour, pattern, finish and texture shall be approved by the Engineer and the bulk supply procured in sheet sizes which will ensure the least number of joints in one surface.

3.3 Flush doors 3.3.1 Flush door shall be solid core doors with commercial or decorative faces and

hardwood edges. It shall have 3 layer flat pressed teak wood particle board (Commercial veneer) bonded with BWP type phenol formaldehyde conforming to lS-848 and total thickness shall be 35 mm. The board core shall conform to lS-3087 Type-1. The door shall be given 35 x 12 mm teak wood beading all around as per drawings and as directed by the Engineer.

3.4 Fittings and Fixtures 3.4.1 Fixtures and fittings for doors, windows, furniture etc. shall be as shown on

drawing and as directed by the Engineer. These shall be of heavy type, best quality and from approved manufacturer.

4.0 JOINERY 4.1 General 4.1.1 The work shall be done by skilled carpenters as per details shown on drawings or

as instructed by the Engineer. Framing timber and other work shall be closed fitting with proper wood joinery, accurately set to required lines or levels and rigidly secured in place.

4.1.2 The surface of frames etc. which will come in contact with masonry after fixing,

shall be given two coats of approved paint before fixing. Mastic caulking shall be done after fixing external door and window frames. Special care shall be taken to match the grain of timber of plywood which will be subsequently polished. Screwing or nailing will not be permitted to the edge of plywood or chipboard sheets.

4.1.3 Fixing of frames and partitions shall generally be with 25 mm x 6 mm x 225 mm

long M.S. Hold fasts at bifurcated end and grouted with (1:2:4) cement



concrete,Anchor fasteners of approved sizes can be used where ever specially required with prior permission of EIC.

The gap between masonry and external door and window frame shall be caulked

with mastic. M.S. grills or guard bars shall be provided to windows where called for in the specification.

4.2 Finish 4.2.1 All carpentry work after finishing shall be sand papered smooth, A primer coat of

paint shall be given after inspection by the Engineer to all surfaces other than those which shall be subsequently polished or covered with laminated plastic sheet.

4.3 Surface Treatment 4.3.1 When shown on drawings, decorative ply or laminated plastic sheets shall be

bonded under pressure to the surface to be finished. The adhesive used shall be of a approved brand and brought to site in sealed containers. The rate of application and the length of time for which the pressure is to be applied shall be as per the manufacturer’s instructions. The edge of sheets shall be protected by teak lipping or beveled as shown on drawings. Factory fitted shutter with laminates as per manufacturer specification and drawing can also be used with prior approval of Engineer in charge.

4.4 Preservative 4.4.1 Where required as per the drawings or by the Engineer, timber shall be treated

with specified preservative strictly in accordance with the manufactuer’s instructions and to the satisfaction of the Engineer.

5.0. FITTINGS AND FIXTURES 5.1 The work covered under these specifications consist of supplying different types

of fittings and fixtures required for teak wood door shutters etc., complete in strict accordance with these specifications and drawings/samples approved.

5.2 All fittings and fixtures shall be of heavy quality brass, anodised aluminium, iron

oxidised (M.S) or as specified. These shall be well made, reasonably smooth and free from sharp edges, corners, flaws and other defects. Screws holes shall be counter sunk to suit the heads of the specified screws. All riveted heads pertaining to hinge pins shall be well-formed. Screws supplied for fittings shall be of the same metal and finish as the fittings. However brass cadmium plated / chromium plated screws shall be supplied with aluminum fittings. Samples of each fixture / fitting shall be furnished by the Tenderer for the approval of the Engineer and got approved from him before placing bulk order for purchase. The fittings and fixtures to be incorporated in the work shall be strictly according to the approved sample. Fittings shall be fixed in proper position as shown in the drawing and as directed by the Engineer. These shall be truly vertical or horizontal as the case may be. Screws shall be driven home with a screw driver



and not hammered in. Recess shall be cut to the exact size and depth of fittings and fixtures shall be done in a workman like manner and any damages (one either to fittings and fixtures or the shutter frames etc.) Should be rectified by the Tenderer at his own cost.

5.3 BUTT HINGES 5.3.1 Brass and aluminum hinges shall be manufactured from the extruded sections

and shall be free from cracks and other defects. M.S. butt hinges shall be cranked and manufactured from M.S. Sheets. All butt hinges conform to latest I.S. specifications. The size of butt hinges shall be taken as the length of the hinge. Width of the hinge shall be measured from the centre line of hinge pin to end of flange.

5.4 PARLIAMENTARY HINGES 5.4.1 These shall be manufactured from cast brass or aluminum or M.S. and shall be

free from cracks and other defects. The size of the parliamentary hinges shall be taken as the width between open flanges, while the depth shall be as specified.

5.5 PIANO HINGES: 5.5.1 These shall conform to I.S. specifications and shall be either brass oxidised,

aluminum anodised, iron oxidised (M.S.) or as specified. Piano hinges shall be fixed in the entire length of the cupboard shutters in a single piece. No joints are allowed.

5.6 TOWER BOLTS 5.6.1 The tower bolts shall be of the following types or as specified: a) M.S. semi barrel tower bolt with MS sheet pressed barrel and G.I. bolt or with M.S.

barrel and M.S. sheet bolt. b) Oxidised brass barrel tower bolt with brass sheet barrel and rolled or drawn brass

bolt. c) Anodised aluminum tower bolt with barrel and bolt of extruded sections of

aluminum alloy. 5.6.2 In case of M.S. tower bolt plates and straps after assembly shall be firmly revetted

or spot welded properly. 5.6.3 The knobs of brass tower bolts shall be cast and the bolt fixed into the knob firmly

as per I.S. specifications. The tower bolt shall be finished to correct shape and pattern so as to have a smooth action. Wherever specified, aluminum barrel tower bolts shall be manufactured from extruded sections of barrel and bolts.

5.6.4 Knobs shall be properly screwed to the bolt and riveted at the back. The size of

the tower bolt shall be taken as the length of barrel without top socker. 5.7 FLUSH BOLTS



5.7.1 These shall be cast brass and shall be finished chromium plated / oxidised, as

specified. The size of the flush bolt shall be taken as the length of the flush plate without top socket.

5.8 ALDROPS 5.8.1 These shall be oxidised brass or anodised aluminum, iron oxidised or as specified

and shall be capable of smooth sliding action and shall be as per IS:2681-1964. Brass sliding door bolt (aldrop) shall be made from rolled brass.The hasp shall be of cast brass and screwed to the bolt in a workman like manner. Alternatively the hasp and the bolt may be in one piece. Bolts shall be finished to shape and threaded with worth standard and provided with round brass washers and nuts of square or hexagonal shape. All components shall be smooth and polished. The leading dimensions of aldrop shall be as per the length of the bolt and specified diameter.

5.9 DOOR HANDLES – BOW / PLATE HANDLES 5.9.1 These shall be of cast brass of specified size, shape and pattern as approved by

the Engineer. Brass handles shall be finished bright, chromium plated or oxidised as specified. Aluminum or iron oxidised (M.S) handles shall be of specified size, shape and pattern. The size of the handle is taken as the inside grip of the handle. In case of iron oxidised handles, the same shall be manufactured from M.S. sheet pressed into oval section as per I.S.

5.10 MORTISE LOCK 5.10.1 Mortise lock with latches and a pair of level handles shall be 6 levers, with zinc

alloy pressure die cast / brass or as specified body of approved quality, and shall be right or left handed as specified. The pair of handles shall be either brass chromium plated or anodixed aluminium of approved shape and pattern or as specified. It shall be of the best Indian make of approved quality. The size of the lock shall be determined by its length. The lock for single leaf door shall have plain face and that for double leaf door a rebated face. Level handles with springs shall be mounted on plates and shall be of approved quality, anodised aluminium or as specified.

5.11 HYDRAULIC DOOR CLOSER 5.11.1 Hydraulic door closer shall be of approved quality and make. The operation of the

Hydraulic door closer shall be very smooth. 5.11.2 This should be of H.D.-66 for external / main doors and elegant – 63 for all

internal doors. The overall height should not be more than 170 mm. for H.D.-66 and 160 mm. for elegant-63. Base shall be 110 x 60 mm. for H.D.-66 and 100 x 55 mm. for elegant – 63. weighing not less than 4.5 kg. For H.D. – 66 and 4 kg. for elegant – 63. Speed of the Hydraulic door closer shall be adjustable and latch closing also shall be adjustable type. Suspension and lubrication of door closer shall be in perfect line and level.



5.12 The Tenderer shall provide for all the incidentals required for fixing these fixtures

and fittings such as cadmium plated screws etc. Fittings and fixtures shall be fixed securely in a workman like manner all as directed by the Engineer. Any of the fixture damaged during the fixing shall be removed and new one fixed in their place and the surface of joinery made good where affected, at his own expense. Mortise plates shall be used over holes where the bolts enter in the wood work. Metal sockets shall be provided to all bolts where the shoot enter brick, stone, concrete etc. The incidental fixtures like mortise plates, metal sockets, screws etc. shall not be paid for separately

6.0 Mild Steel frames & shutters : These shall be manufactured as per drawing and specification. These shall be

fabricated from mild steel sheets and angle iron. 6.1 The doors shall be provided as double leaf shutters unless otherwise specified .

The shutters shall be fabricated with frame of M.S. angle 40 x 40 x 6 mm @ 3.5 kg/ metre and two diagonal braces of the same section as shown in Fig. 3 unless otherwise specified. The frame shall be riveted and/ or welded at the junctions. Wherever riveting shall be done 3.15 mm (10 G) thick gusset plate shall be provided at the junction. M.S. sheet of 1 mm thickness or as specified, shall be fixed to the frame with rivets or welds as approved by the Engineer-in-charge.

Alternatively, the diagonal bracing may be replaced by one horizontal and two

cross flats 30 x 6 mm unless otherwise specified. The outer frame shall be provided with cleats made of section 40 x 10 mm and

bent in the shape of angle cleats with one arm 150 mm long and the other arm 50 mm long and fixed to the angle iron frame of the door with two 12 mm dia bolts and nuts. For doors upto 2.40 m height, two angles cleats per door shall be provided.

The cleat shall have a vertical leg of 150 mm which shall be fixed with frame and

horizontal leg of about 50 mm which shall be provided with a hole of 24 mm dia and fixed in the projected pin of the pin clamp.

6.2 Fittings and Fixtures The shutters shall be fixed to the wall masonry with four pin

clamps (pintles) where the height of the shutter is upto 2.4 m. Each pin clamp shall consist of 50 x 6 mm flat iron 45 cm long bent and forked at one end and provided with 20 mm diameter M.S. pin on the other. The pin shall be firmly riveted or welded to the pin clamp, the other end of which shall be embedded in masonry by means of cement concrete block 40 x 23 x 20 cm of 1:3:6 mix (1 cement :3 coarse sand:6 graded stone aggregate 20 mm nominal size). It shall be so placed that bottom pin shall face upwards and “top pin downward”in order that the gate may not be removed by lifting over pins.

One hook with eye 45 cm long of 10 mm diameter shall be provided for each

shutter to keep it fixed in open position. The hook shall be fixed in wall masonry with wooden block and the eye shall be fixed on 6 mm thick M.S. plate as staple



and fixed in the shutter frame with rivet or weld. A cement concrete block 15 x 10 x 20 cm in 1:2:4 (1 cement:2 coarse sand:4

grades stone aggregate of 20 mm nominal size) mix shall be embedded in the floor or at junction of two shutters so that door shutter open only on the outside and not on the inside.

The shutters shall also be provided with locking arrangement and two handles of

the shape and pattern as approved by the Engineer-in-charge. 6.3 Painting All the members of the door including angle iron shall be thoroughly

cleaned off rust, scales, dust etc. and given a priming coat of approved steel primer i.e. Red Oxide/ Zinc chrome primer confirming to IS 2074 before fixing them in position.

6.4 Measurements The width and height of shutters shall be measured to the nearest

cm. The area shall be calculated in square metre correct to two places of decimal. 7.0 uPVC window frames & shutters Factory made uPVC white colour sliding glazed window upto 1.50 m in height

dimension comprising of uPVC multi-chambered frame with in-built roller track and sash extruded profiles duly reinforced with 1.60 ± 0.2 mm thick galvanized mild steel section made from roll forming process of required length (shape & size according to uPVC profile), appropriate dimension of uPVC extruded glazing beads and uPVC extruded interlocks, EPDM gasket, wool pile, zinc alloy (white powder coated) touch locks with hook, zinc alloy body with single nylon rollers (weight bearing capacity to be 40 kg), G.I fasteners 100 x 8 mm size for fixing frame to finished wall and necessary stainless steel screws etc. Profile of frame & sash shall be mitred cut and fusion welded at all corners, including drilling of holes for fixing hardware's and drainage of water etc. After fixing frame the gap between frame and adjacent finished wall shall be filled with weather proof silicon sealent over backer rod of required size and of approved quality, all complete as per approved drawing & direction of Engineer-in-Charge. (Single / double glass panes, wire mesh and silicon sealant shall be paid separately)

Note: For uPVC frame and sash extruded profiles minus 5% tolerance in

dimension i.e. in depth & width of profile shall be acceptable. 7.1 Two track two panels sliding window made of (small series) frame 52 x 44 mm &

sash 32 x 60 mm both having wall thickness of 1.9 ± 0.2 mm and single glazing bead of appropriate dimension. (Area of window upto 1.75 sqm)

7.2 Three track three panels sliding window with fly proof SS wire mesh (Two nos.

glazed & one no. wire mesh panels) made of (small series) frame 92 x 44 mm & sash 32 x 60 mm both having wall thickness of 1.9 ± 0.2 mm and single glazing bead of appropriate dimension (Area of window upto 1.75 sqm).



7.3 Two track two panels sliding window made of (big series) frame 67 x 50 mm & sash 46 x 62 mm both having wall thickness of 2.3 ± 0.2 mm and single glazing bead / double glazing bead of appropriate dimension . (Area of window above 1.75 sqm upto 2.50 sqm).

7.4 Three track three panels sliding window with fly proof S.S wire mesh (Two nos.

glazed & one no. wire mesh panels) made of (big series) frame 116 x 45 mm & sash 46 x 62 mm both having wall thickness of 2.3 ± 0.2 mm and single glazing bead / double glazing bead of appropriate dimension. (Area of window above 1.75 sqm).

7.5 Three track three panels sliding window made of (big series) frame 116 x 45 mm &

sash 46 x 62 mm both having wall thickness of 2.3 ± 0.2 mm and single glazing bead / double glazing bead of appropriate dimension. (Area of window above 1.75 sqm)

8.0 ACCEPTANCE CRITERIA 8.1 Door and Window Frames 8.1.1 All frames shall be square and flat at the time of delivery and shall be checked for

dimensions and corner angles. After fixing they shall be in a true vertical plane. All external door and window frames shall be caulked with mastic.

8.2 Door and Window Shutters 8.2.1 These shall be of proper size, shape and design and free of warps. When fixed to

frames these shall operate smoothly without jamming and all latching or locking devices shall engage properly without under pressure.

8.3 Door and Window fittings 8.3.1 One set of all approved door and window fittings shall be submitted to the

Engineer for reference and comparison with the fittings being provided.



2.10 ROLLING SHUTTERS & GRILLS

1.0 SCOPE 1.1 This specification covers the design, supply of materials, fabrication, delivery and

erection of Rolling Shutters/Grills with motor drives and/or manual operation including all accessories as hereinafter specified. All electrical work shall be in accordance with the latest Indian Electricity Rules.





IS : 6248 1979 Specification for Rolling Shutters and Grills

IS : 10451 1983 Steel sliding shutters

3.0 FABRICATION 3.1 Components a) Slats for rolling shutters shall be made from tested bright cold rolled, annealed

M.S. strips, not less than 0.9 mm thick for shutters upto 3.5 M wide and not less than 1.24 mm thick for shutters 3.5 M wide and above, machine rolled at 75 mm rolling centres, interlocking with each other. The profile will be such as to prevent excessive deflection under specified wind load.

b) Rolling grill shall be constructed out of 6 mm dia rods at 35 mm on centres

running horizontally flexibly connected with vertical links spaced not more than 200 mm centres. Alternatively, rolling grills shall be made from perforated slats of approved design reinforced with 6 mm dia. rods.

c) End locks shall be heavy type M.C.I./C.I. and shall be provided at each end of

alternate slats. d) Bottom bars shall be finished with two angles not less than 6 mm thick for external

shutters. When shown on drawings a flexible weather strip shall be applied to make tight contact with the floor.

e) Guides shall be of such depth as to retain the shutter under a wind pressure of

200 kg/sq.m. The minimum thickness of guide to be 12 G.



f) Shafts shall be of steel pipe of sufficient size to carry the torsional load with a maximum deflection of 1/360th of span. Grease packed ball bearings or bushings shall be provided for smooth trouble free operation.

g) Hoods shall be formed of not less than 20 gauge steel, suitably reinforced to

prevent sag. h) Locks shall be slide bolt and hasp, or cylinder lock operable from one or both

sides. Provision for securing hand chain with padlock, provisions for removable handle for hand cranks etc. shall be made as desired by the Engineer.

i) Power unit shall be suitable for 3 phase, 50 cycle, 400 volts A.C. Power supply

and shall be either floor or wall mounted unit. The motor shall be of sufficient capacity to move the unit. The motor shutter shall move in either direction at speed of 0.3 metres per second. In addition to the gear motor each standard power unit shall include a magnetic brake, a reversing starter with built-in overload protection, a geared limit switch and one push button station located inside the building unless otherwise stated. It is desirable that the bottom bar of motor operated doors shall be provided with a sensitive edge, electrically connected to stop the travel of the door on meeting an obstruction.

j) Operating chains shall be of tested quality, heavily galvanized and with all ends

rounded to assure smooth operation and hand protection. g) Reduction gears shall be of high strength grey cast iron, machine mounted from

machine cut patterns. 3.2 Manually Operated Shutters/Grills 3.2.1 Manually operated shutters shall be easily operable by one person. The speed of

operation shall be about 0.3 metres per second. In general, manually operated shutters shall be push pull type of opening upto 9 sq. metre in area. Larger shutters shall be either chain and gear operated or crank and gear operated. The crank handle shall be removable. All shutters shall be lockable from one or both sides asdesired by the Engineer.

3.3 Power Operated Shutter/Grill 3.3.1 These shall be operable from a push button station conveniently located besides

the door or as shown on drawings. One emergency hand chain/crank operation shall also be provided for use in case of failure of the electric system.

4.0 FIXING 4.1 Brackets shall be fixed on the lintel/beam or under the lintel/beam as specified in

item with rawlplugs and screws, bolts, washers etc. The shaft along with the spring shall then be fixed on the brackets. The guide channels shall be fixed to the wall through the plates welded to the guides. These plates and brackets shall be fixed by means of steel screws, bolts and rawlplugs drilled into the wall. The plates and screws, bolts shall be concealed in plaster to make their locations



invisible. Fixing shall be done accurately in a workman like manner that the operation of the shutter is easy and smooth. All grout holes and damages on the wall while fixing of shutters shall be made good by the Tenderer at no extra cost to the Owner. The Tenderer shall ensure smooth and easy working of shutters.

5.0 PAINTING 5.1 All the members of the rolling shutter shall be thoroughly cleaned off dust, scales,

rust etc. and shall be given approved priming coat of red oxide paint before fixing the shutter in position and then shall be painted with two coats of flat/synthetic enamel paint of approved quality and shade.

6.0 ACCEPTANCE CRITERIA 6.1 Field Inspection

After installing the shutters, the Tenderer shall test the performance of the shutter in the presence of the Engineer. The doors shall be smoothly operable under all ambient conditions. All control and locking devices shall give fault-free performance.

6.2 Guarantee

The Tenderer shall give one year’s guarantee for the successful operation of the shutters.



2.11 ALUMINIUM WORKS

1.0 SCOPE 1.1 The work in general shall consist of fabrication, supplying, erecting and installing

of all aluminium doors, windows, ventilators, louvers, glazed partitions etc. as stipulated here or elsewhere in these specifications with all materials complete including labour and equipment.

2.0 GENERAL 2.1 The Tenderer shall submit 3 copies of shop drawing covering all types of work

under this specification before manufacture. The drawing shall show all dimensions, member designations, details of construction, installation, relating to adjoining and related work etc The work shall be carried out as per approved shop drawings, relevant detailed approved shop drawings.

2.2 The Tenderer shall submit 3 copies of shops drawings covering all type/details of

work and generally shown in ural drawings and envisaged under these specifications before manufacture. The drawings shall show all dimensions, details of constructions, installation of fixtures and relation to adjoining and related works. No fabrication work shall be undertaken prior to obtaining approval of the shop drawings from the Engineer. The Tenderer shall intimate at the time of tendering the type of sections he proposes to use on the works.




referred to in clause 3.3 the former shall prevail. 3.3 Some of the applicable Indian standards, Codes, etc. are referred below:

IS : 733 1983 Specifications for wrought aluminium and aluminium alloy bars, rods, sections (for general engineering purposes)

IS : 1081 1960 Code of practice for fixing and glazing of metal (Ste & Al) doors, windows & ventilators

IS : 1868 1996 Specifications for anidic coatings on aluminium and its alloys



4.0 MATERIALS 4.1 Aluminium alloy for extruded sections for the above work shall correspond to I.S-

733 (extruded sections shall conform to IS Designation HE 9 – WP. Hollow sections shall conform to IS Designation HV9-WP) and shall be anodised before incorporating in the work. The Door, Window, Ventilator, glazing framework, beadings, hinges, pegstays, stiles, mullions, beadings, transoms and handles etc., shall be of aluminium anodised section as shown in detailed approved drawings. All aluminum sections shall be from approved reputed manufacturer.

4.2 The Tenderers can also propose nearest alternative sections they

manufacture/posses without changing the elevation, structural stability and functional requirement. Engineer reserves the right to accept the alternative section or otherwise. The sections shall be structurally suitable to withstand all the loads, the members have to sustain.

4.3 Counter sunk screws, nuts, bolts, washers, rivets and other miscellaneous

fastenings devices shall be of approved brass cadmium plated or stainless steel as specified in the approved drawing. Each door leaf shall be prepared to receive glazed panel of required thickness.

4.4 Glazing shall be done with neoprene dry set glazing gasket (of best quality and

approved make) with snap – in – beveled white anodised matt finish aluminium metal glazing stops inside and outside,

5.0 FABRICATION 5.1 Doors 5.1.1 The frames shall be manufactured square and flat, the corners of the frame being

fabricated to true right angle. All the fixed, sliding and opening frames shall be constructed of sections which have been to length, mitred, welded and mechanically fixed at the corners.

5.1.2 Where hollow sections are used with welded joints, argon-arc welding or flash butt

welding shall be employed (Gas welding or brazing not to be done). In case welded joints are used, anodising shall be done after fabrication as a whole. All welding shall be on unexposed sides in order to prevent pitting / discoloration of other surface imperfections after fixing etc.

5.1.3 Necessary allowance shall be made while manufacturing the aluminium door

entrances, wall spans and glazing for receiving plaster. Field fabrication of frames shall be done only if permitted by Engineer.

5.1.4 A thick layer of clear transparent lacquer based on methacrylates or cellulose

butyrate shall be applied on the finished sections of the aluminium work by the Tenderer to protect the surfaces from wet cement, lime, dirts, dust etc during the construction activities. The size for door, window or ventilator frames shall not vary by more than (+/-) 1.5 mm.



5.1.5 All aluminium surfaces in contact with masonry or concrete shall be given a thick coat of bitmastic paint. After fabrication, aluminium sections shall be protected from construction hazards that may damage their appearance or finish. All exposed surfaces of aluminum door entrance shall be protected by masking tape during transportation, shipment, erection etc.

5.2. For details on Windows, Ventilators and Glazings, refer to Section-3 of PART-A. 6.0 HARDWARE 6.1 All sections and hardware shall have anodic film and cover a minimum thickness

of 0.015 mm 6.2 All doors shall have off-set pivots, double action (180 minimum swing) floor

springs with oil check boxes of approved manufacture. All doors shall have 4 lever concealed brass body mortise lock without handles as per manufactures design, with concealed flush C.P. brass tower bolts provided at suitable locations. All doors shall have push plates of design shown in the approved drawing as described in the schedule of quantities. All entrances shall be without thresholds.

6.3 All cutouts, recess, mortising or milling and operations required for fixing the

hardware shall be accurately made reinforced with pacing plate as required to ensure adequate strength of the connection.

6.4 All the hardware accessories shall be of best approved type and of anodised

finish same as of rate frames and other sections. Each lock shall be supplied with two stainless steel keys and each key shall be with number stamped thereon according to the number on doors so installed.

6.5 All hardware shall be free from defects which may affect the appearance and

serviceability. All hardware shall be fixed after obtaining the prior approval of the Engineer.

6.6 Approved samples of hardware shall be kept in the custody of the Engineer.

Working and moving parts of lock sets shall be accurately fitted to smooth, close bearings and shall be free from rattle.

6.7 The floor springs shall be of heavy duty type and should allow door operation

smoothly. 6.8 The tenderer shall furnish a guarantee for all finishing and quality of hardware

items covered under this section and which shall remain free from defects of any kind, either materials and / or workmanship for a period of one year (unless otherwise specified) from the date of completion / handling over of work.

6.9 The Tenderer shall repair or replace any and all defective work and damage caused, at any time or times during that period within 3 days from the written notice. This shall be done without any extra cost to the Owner.

7.0 FIXING



7.1 The frames shall be accurately fixed in the flooring/brick masonry or R.C.C works. The fixing of the frame shall be done with cadmium plated brass counter sunk screws driven on to the teak wood, rough ground, or fixed to the wall with holdfasts as directed by the Engineer, and as shown in approved drawings.

7.2 All aluminum works shall be fixed in position as per relevant Indian Standard

Specifications and code of practice for fixing and glazing of aluminum work. Joints between metal and masonry shall be neatly painted with matching cement and excess materials shall be removed.

7.3 Fixing of aluminum door entrances, hardware etc shall be done in best

workmanship like manner true to line, level, plane, plumb etc and all as directed by the Engineer. Breaking of floor for providing floor springs and restoration of the floor finishes to the original specification and finishes and minor additions and alternations to the openings shall be deemed to have been included in the quoted rates.

7.4 All aluminum windows shall be fixed in position as per IS : 1081. All joints

between metal and masonry / rough ground wooden frame shall be fully caulked with mastic or ploysulphidc compound in order to ensure water tight joints. Joints shall be neatly painted with matching cement and excess materials shall be removed. Hardware shall be fixed in workman like manner all as directed by the Engineer.

8.0 HANDLING AND STORAGE

All aluminum doors, windows, etc. shall be packed and crated properly before dispatch, to ensure that there will be no damage to the fabricated materials. Loading into wagons and trucks shall be done with all care to ensure safe arrival of materials at site in undamaged condition. All Doors, Windows etc. shall be stored under cover in a way to prevent damage or distortion.

9.0 ACCEPTANCE CRITERIA 9.1 For Fabricated Items a) Overall dimension shall be within + 1.5 mm of the size b) Mullions, transoms etc. shall be in one length and permissible deviations from

straightness shall be limited to 1.5 mm from the axis of the member. c) Door and window shutters shall operate without jamming. The clearance at head

and jamb for Door shutters shall not exceed 1.5mm. For double leaf Doors, the gap at the meeting of stiles shall not be more than 1.5mm.

d) Door leaves shall be undercut wherever required. e) Doors, Windows, frames etc. shall be on a true plane, free from warp or buckle. f) All welds shall be dressed flush on exposed and contact surfaces.



g) Correctness of location and smoothness of operations of all shop installed hardware and fixtures.

h) Provision to be made for hardware and fixtures to be installed at site. i) Glazing clips, fixing devices etc. shall be supplied in adequate

numbers j) Shop coats shall be properly applied. k) Glazing beads shall be cut with mitered corners. 9.2 For Installed Items a) Installations shall be at correct location, elevation in general, on a true vertical

plane. b) Fixing details shall be strictly as shown on drawings. c) Assembly of composite units shall be strictly as per the drawings with mastic

caulking at transoms and mullions, gaskets, weather strips etc. complete. d) All frames on external walls shall be mastic caulked to prevent leakage through

joints between frames and masonry. e) All openable sections shall operate smoothly without jamming. f) Locks, fasteners etc. shall engage positively. Key shall be non-interchangeable. g) Cutting to concrete or masonry shall be made good and all abrasions to shop

paint shall be touched up with paint of same quality as shop paint.



2.12 GLASS & GLAZING

1.0 SCOPE 1.1 The work in general shall consist of supplying and fixing all glass and glazing

including all clips, putty, mastic cement etc. wherever required as shown on drawings.


editions, including all applicable official amendments and revisions. A complete set of all these documents shall generally be available at site, with the Tenderer.



IS : 419 1967 Putty for use on window frames

IS : 1081 1960 Code of practice for fixing and glazing metal (steel & aluminum) Doors, Windows and Ventilators

IS : 2835 1987 Flat transparent sheet glass

IS : 3548 1988 Code of practice for glazing in building

IS : 5437 1994 Figured rolled and wired glass

IS : 14900 2000 Specification for transparent float glass

3.0 MATERIALS 3.1 The Tenderer shall supply and install all glass and glazing as required for various

Doors, Windows, Sashes, Ventilators, and fixed louvers, miscellaneous glazing and partitions, unless otherwise stated, from approved manufacture having uniform refractive index and free from flaws, specks and bubbles. The glass shall be brought to site in the original packing from the manufacturer and cut to size at site. The cut edges shall be straight and free from chips, spall or any other damages.

3.2 The glass shall be plain float glass from approved manufacture, as specified and it

shall be free from bubbles, flaws specs, waves, air holes, distortion, scratches or other defects. The glasses in bulk quantities shall be brought to site in Makers original packings and Makers guarantee shall be produced if called for by the Engineer. The glass shall be of required thickness as mentioned in the items of schedule of quantities and / or drawing or as directed by the Engineer. The Tenderer shall submit the sample of the glass which he proposes to use on the work and only such approved quality of glass shall be used in the works. The



glass brought to site shall be protected against damages. Wherever frosted (obscure) glass is mentioned in the item of schedule of quantities and / or shown in drawings, the glass shall be of sand blown pattern and shall also be got approved by the Engineer.

3.3 After the inspection is over and permitted by the Engineer, glass panes shall be

cleaned off any labels paints smears and spots and shall be washed from both the sides and all glazing left clear, perfect and free from rattling. The Tenderer shall provide all the scaffolding tools and plants for fixing the glass panes at his own cost.

3.4 Glare reducing (tinted) or heat absorbing glass shall be of approved make and

special care shall be taken to grind smooth and round off the edges before fixing. 3.5 Clear glass shall be flat drawn and shall be at least 4 mm thick, conforming to lS-

2835. Sheet glass for doors shall be minimum 6.3 mm thick. 3.6 Wired glass shall be 6 mm thick rolled glass with centrally embedded 24 G wire

mesh of Georgian type. This may be of clear or coloured glass, as required by Engineer and shall conform to lS-5437.

3.7 Obscure glass shall have a cast surface on one side. 3.8 Coloured and figured glass shall be as per approved sample. 3.9 In general, the putty shall conform to lS-419 and be of best quality from approved

manufacturer. it shall be brought to site in the manufacturer’s original packing. Quick setting putty shall be used for windows and sashes except when glare reducing glass is used where it shall be of non-setting type.

3.10 Neoprene gaskets with snap-fit glazing shall be fixed as per manufacturer’s

instruction and shall fit firmly against the glass to give a leak proof Installation. 4.0 FIXING 4.1 The glass shall be cut to the required sizes of panels where it is to be fitted and it

shall be so cut that it fits properly in the frames without rattling. Pre-measurement of each panel prior to the cutting of glass is essential.

4.2 The beading shall then be fixed to glass panes and screwed at close intervals not

more than 10 cm. from each corner and the intermediate not more than 20 cm. apart. When glass panes are fixed with wooden beadings having mitred joints or aluminium beading, thin layer of glazier putty shall be applied covering the area in contact between the glass and sashbars and beadings. In case of louvers, all the exposed edges of the glass shall be ground properly

4.3 All glazing clips, bolts, nuts, putty, mastic cement, etc. as required shall be

supplied by the Tenderer. 4.4 All glass shall be thoroughly cleaned before placing in positions. Each glass pane



shall be held in place by special glazing clips of approved type. As specified in relevant l.S. Codes, four glazing clips shall be provided per glass pane, except for large panes where six or more clips shall be used as per Engineer’s instructions. All holes that may be necessary for holding the clips, glazing beads and all other attachments shall be drilled by the Tenderer.

4.5 Glass pane shall be set without springing, and shall be bedded in putty and back

putted, except where mouldings or gaskets are specified. Putty, mastic cement etc. shall be smoothly finished to a true even line. Obscure and figured glass shall be set with smooth. side out.

4.6 After completion of glazing work, the Tenderer shall remove all dirt, stains, putty

etc. clean the glass panes and leave the work in perfectly acceptable condition. All broken, cracked or damaged glass shall be replaced by new ones

4.7 The beading shall be of teak wood of superior quality timber in case of teak wood

doors and windows of required sizes mentioned in the items of schedule of quantities as shown in drawing. In case of steel doors and windows the beading shall be anodised aluminium beading of channel section as per size mentioned in the item and / or shown in the drawing. The junction of the beadings shall be mitre jointed.

5.0 ACCEPTANCE CRITERIA a) All installations shall be free from cracked, broken or damaged glass. Edges of

large panes of thicker glass and heat absorbing glass shall be inspected carefully for chipped, cracked or unground edges.

b) Glazing shall be carefully done to avoid direct contact with metal frames. g) All glass shall be embedded in mastic or fixed by neoprene gaskets to give a

leak-proof installation. h) At completion, the panes shall be free from dirt, stains, excess putty etc. and to

complete satisfaction of the Engineer.



2.13 PAINTING, DISTEMPERING, EMULSION PAINT, POLISHING AND OTHER TEXTURE PAINT FINISHING WORKS

1.0 SCOPE 1.1 This Specification covers painting, polishing, distempering, emulsion, Texture etc.

of both interior and exterior surfaces of building wall plaster, cement based wall putty and other miscellaneous items as indicated elsewhere in these specifications or as directed by the Engineer.

1.2 If surface to be finished cannot be put in suitable condition for painting by

customary preparatory methods, the Tenderer shall notify the Engineer in writing or assume responsibility for the same and rectify unsatisfactory finishing. Before commencing painting, the Tenderer shall obtain the approval of the Engineer in writing regarding the scheduling of work to minimise damage, disfiguration or staining by other trades. He shall also undertake normal precautions to prevent damage, disfiguration or staining to work of other trades or other installations.





IS:75-1973 Linseed oil, raw and refined

IS:77-1976 Linseed oil, boiled, for paints

IS:102-1962 Ready mixed paint, brushing, red, lead, nonsetting, priming

IS:103-1962 Ready mixed paint, brushing, white lead, for priming and general purposes

IS:104-1979 Specification for ready mixed paint, brushing, zinc chrome, priming

IS:133-1993 Enamel, interior (a) under coating (b) finishing colour as required

IS:137-1965 Ready mixed paint, brushing, matt or egg-shell flat, finsihing, interior, to Indian Standard Colour, as required

IS:158-1981 Ready mixed paint, brushing, bituminous, black lead free acid alkali, water and heat resisting for general purposes.

IS:168-1993 Ready mixed paint, air drying for general purpose.

IS:217-1988 Cut back bitumen

IS:218-1983 Creosote and anthrakene oil for use as wood preservatives

IS:290-1961 Coal tar black paint



IS:337-1975 Varnish, finishing interior

IS:338-1952 Varnish, under coating exterior, natural resin

IS:339-1952 Varnish, under coating, exterior, synthetic resin

IS:340-1978 Varnish, mixing

IS:341-1973 Black Japan, type A, E, & C

IS:345-1952 Wood filler, Transparent, liquid

IS:347-1975 Varnish, shellac for general purpose

IS:348-1968 French polish

IS:419-1967 Putty for use of window frames

IS:427-1965 Distemper, dry, colour as required

IS:428-1969 Distemper, oil emulsion colour as required

IS:524-1983 Varnish, finishing, exterior, synthetic

IS:525-1968 Varnish, finishing, exterior and general purposes

IS:533-1973 Gum spirit of turpentine (oil of turpentine)

IS:712-1984 Specification for building limes

IS:1477(I and II) Code of Practice for painting of ferrous metals in building

IS:2095-1982 Gypsum plaster boards.

IS:2096-1992 Asbestos cement flat sheets.

IS:2339-1963 Aluminium paint for general purposes, in dual container

IS:2395 (I and II) Code of Practice for painting concrete, masonry and plaster surface

IS:2547-1976 Gypsum building plaster

IS:2932-1994 Enamel synthetic, exterior (a) Under coating (b) Finishing.

IS:2933-1975 Enamel, Exterior (a) Under coating (b) Finishing

IS:5410-1992 Cement paint, colour as required

IS:5411-(Pt.-I)-1974 Plastic emulsion paint for interior use

IS:6278-1971 Code of practice for white washing & colour washing

IS : 13467 Specification for chlorinated rubber for paints

BS : 5493 Code of practice for protective coating of Iron & Steel structure against corrosion

3.0 MATERIALS 3.1 Materials shall be of highest grade products of well-known approved manufacturer

and shall be delivered to the site in original sealed containers, bearing brand name, manufacture’s name and colour shade, with label intact and seals unbroken. All materials shall be subject to inspection & approval by the Engineer. It is desired that materials of one manufacturer only shall be used as far as possible and paint of one shade be obtained from the same manufacturing batch.

3.2 All paint shall be subjected to analysis from random samples taken at site from

painters bucket, if so desired by the Engineer. 3.3 All prime coats shall be compatible to the material of the surface to be finished as

well as to the finishing coats to be applied. All unspecified materials such as shellac, turpentine or linseed oil shall be of the highest quality available and shall conform to the reputed recognised manufacturer’s and shall be approved by the



Engineer. 3.4 All colour shall be as per painting schedule and tinting and matching shall be done

to the satisfaction of the Engineer. In such cases, where samples are required, they shall be executed in advance with the specified materials for the approval of the Engineer.

4.0 WHITE WASHING 4.1 Shall be done from pure shell lime or fat lime, or a mixture of both as instructed by

the Engineer, and shall conform to IS:712. Samples of lime shall be submitted to the Engineer for approval, and lime as per approved sample shall be brought to site in unslaked condition. After slaking, it shall be allowed to remain in a tank of water for two days, and then stirred up with a pole, until it attains the consistency of thin cream. 100 grams of gum to 6 litres of white wash water and a little quantity of indigo or synthetic ultramarine blue shall be added to the lime.

5.0 WATERPROOF CEMENT PAINT 5.1 Shall be made from best quality white cement and lime resistant colours with

accelerators, waterproofing agents and fungicides. The paint shall conform to IS:5410.

6.0 ACRYLIC EMULSION PAINT 6.1 Shall be water based acrylic copolymer emulsion with rutile titanium dioxde and

other selected pigments and fungicide. It shall exhibit excellent adhesion to plaster and surface and shall resist deteoration by alkali salts. The paint film shall allow the moisture in wall to escape without peeling or blistering. The paint, after it is dried, shall be able to withstand washing with mild soap and water without any deterioration in colour, or without flaking, blistering or peeling.

7.0 SYNTHETIC ENAMEL PAINT 7.1 Shall be made from synthetic resin and drying oil with rutile titanium dioxide and

other selected pigments to give a smooth, hard, durable and glossy finish to all exterior and interior surfaces. White and pastel shades shall resist yellowing and darkening with aging. The paint shall conform to IS:2932 and IS:2933.

8.0 DRY DISTEMPER 8.1 Dry distemper of required colour conforming to IS:427 and of approved brand and

manufacturer shall be used. The primer where used shall be cement primer or distemper primer. The shade shall be got approved from the Engineer. Dry distemper as required shall be stirred slowly and in clean water using 0.6 litre of water per kg of distemper or as specified by the manufacturer. Distemper shall not be mixed in larger quantity than is actually required for one day work. Warm water shall preferably be used. The treatment shall consists of a priming coat of whiting followed by the application of two or more coats of distemper till the surface shows an even colour.



9.0 OIL BOUND DISTEMPER 9.1 Oil bound distemper (IS:428-1969) of approved brand and manufacturer shall be

used. Any unevenness in surface shall be made good by applying putty. The patched surface shall be allowed to dry thoroughly before the coat of distemper is applied. One coat of distemper properly diluted with thinner as specified by the manufacturer applied with brushes in horizontal strokes followed immediately by vertical ones together will constitute one coat. Two or more coats of distemper as found necessary shall be applied to obtain even shade.

10.0 COLOUR WASH 10.1 It shall be done with mineral colours, not affected by lime added to white wash. No

colour wash shall be done until a sample of the colour wash to the required tint or shade has been approved by the Engineer.The colour shall be of even tint or shade over the whole surface. If it is blotchy or otherwise badly applied, it shall be redone by the Tenderer at no extra cost to Owner.

11.0 CHLORINATED RUBBER BASED PAINT 11.1 Chlorinated rubber is the product obtained from the reaction of chlorine with

rubber. The product contains average chlorine content of about 65%. 11.2 Chlorinated rubber shall be formulated with resins (for adhesion and gloss),

plasticizers (for flexibility and toughness), pigments (for colour), stabilizers and solvents (for fluidity). This shall meet the general requirements of IS:13467 & BS:5493.

12.0 STORAGE 12.1 The Tenderer shall arrange for safe and proper storage of all materials and tools.

Paints shall be kept covered at all times and mixing shall be done in suitable containers. All necessary precautions shall be taken by the Tenderer to prevent fire.

13.0 PREPARATION OF SURFACE 13.1 Before starting the work the Tenderer shall obtain the approval of the Engineer

regarding the soundness and readiness of the surface to be painted on. 13.2 Masonry, Concrete and Plastered Surfaces shall be free from all oil, grease,

efflorescence, mildew, loose paint or other foreign and loose materials. Masonry cracks shall be cleaned out and patch filled with mortar similar to the original surface and uniformly textured. Where this type of resurfacing may lead to the finishing paint being different in shade from the original surfaces, the resurfaced area shall be treated with minimum one coat of cement primer which should be continued to the surrounding area for a distance of minimum 100 mm.

13.3 Surface with mildew, efflorescence shall be treated as -below.



• Mildew: All mildewed surfaces shall be treated with an approved fungicide such as ammoniacal wash consisting of 7 gm of copper carbonate dissolved in 80 ml.liquid ammonia and diluted to 1 litre with water or 2.5 per cent magnesium silico-fluoride solution and allowed to dry thoroughly before paint is applied.

• Efflorescence: All efflorescence shall be removed by scrubbing the affected surfaces with a solution of muriatic acid in water (1 : 6 to 1 : 8) and washed fully with clear water and allowed to dry thoroughly.

13.4 Metal Surfaces 13.4.1 All metal surfaces shall be absolutely clean, dry and free from wax, grease or

dried soap films. All steel and iron surfaces in addition shall be free from rust. All galvanized iron surfaces shall be pre-treated with a compatible primer according to the manufacturer’s direction. Any abrasion in shop coat shall be touched up with the same quality of paint as the original coat.

14.0 APPLICATION 14.1 The method of application shall be as recommended by the manufacturer in case

of selection of special shades and colour (not available in standard shades) the Tenderer shall mix different shades and prepare test panels of minimum size 1 metre square as per instruction of the Engineer and obtain his approval prior to application of finishing paints.

14.2 Proper tools and implements shall be used. Scaffoldings if used shall be

independent of the surface to be painted to avoid shade differences of the freshly repaired anchor holes. Painting shall be done by skilled labourers in a workman like manner. All materials shall be evenly applied, so as to be free of sags, runs, crawls or other defects. All coats shall be of proper consistency. In case of application by brush, no brush marks shall be visible. The brushes shall be clean and in good condition before application of paint.

14.3 All priming undercoats for painting shall be applied by brush only and rollers,

spray equipments etc. shall not be used. 14.4 No work shall be done under conditions that are unsuitable for production of good

results. No painting shall be done when plastering is in progress or is drying. Application of paint which seals of surface to moisture shall be done after the moisture on and under the surface has dried out.

14.5 All coats shall be thoroughly dry before being sand papered or before the

succeeding coat is applied. Coats of painting as specified are intended to cover surfaces perfectly.

14.6 In case the surface is not covered properly by applying the specified number of

coats, further coats shall be applied by the Tenderer when so directed by the



Engineer, without any extra cost to Owner. All primers and undercoats shall be tinted to approximate the colour of the finishing coats. Finished coats shall be of exact colour and shade and as per approved samples and finish shall be uniform in colour and texture. All parts of mouldings and ornaments shall be left clean and true to finish.

14.7 White Washing: The surface where white washing is to be applied shall be

cleaned of all loose materials and dirt. All holes and irregularities of the surface shall be filled up with lime putty and shall be allowed to dry up before application of the lime solution. One coat of white wash shall consist of one stroke from top downwards, another from bottom upwards over the first stroke and another from left to right before the previous one dries up. Second coat shall be applied after the first dries up completely and similarly the third coat shall be applied and in case the Engineer feels that one or more coats is required the Tenderer shall do so without any extra cost to the Owner. No brush marks shall show on the finished surface. The inner plastered surfaces of walls shall be given three or more coats of white washings.

14.8. Waterproof Cement Paint: Surface to be coated with cement paint shall be

washed and brushed down. As soon as the moisture has disappeared, the surface shall be given one coat of paint. Care shall be taken so that the paint does not dry out too rapidly. After 4 to 6 hours, the water shall be sprinkled over the surface to assist curing and prevent cracking. After the first coat has dried (24 to 48 hours) the second coat shall be applied. In a similar manner the finished surface shall be kept moist by occasional sprinkling with water for seven days after painting.

14.9 Acrylic Enamel Paint: Lime gauged cement plastered surfaces shall not be

painted for at least one month after plastering. A sample patch shall be painted to check alkali reaction if so desired by the Engineer. Painting shall be strictly as per manufacturer’s specification. Minimum two coats shall be applied.

14.10 Synthetic Enamel Paint: Shall be applied on properly primed surface.

Subsequent coats shall not be applied till the previous coat is dry. The previous coat shall be lightly sand papered for better adhesion of subsequent coats. Minimum two coats shall be applied.

14.11 Dry Distemper: The treatment shall consists of a priming coat of whiting followed

by the application of two or more coats of distemper till the surface shows an even colour as per manufacturer’s instruction. The entire surface shall be coated with the mixture uniformly, with proper distemper, in horizontal strokes followed immediately by vertical ones, which together shall constitute one coat. Subsequent coats shall be applied only if the previous coat has dried.

14.12 Oil Bound Distemper: Any unevenness in the surface shall be made good by

applying putty. The patched surface shall be allowed to dry thoroughly before coat of distemper is applied. One coat of distemper properly diluted with thinner as specified by the manufacturer shall be applied with brushes in horizontal strokes followed immediately by vertical ones, which together will constitute one coat. Two or more coats of distemper, as found necessary shall be applied to obtain even



shades. 14.13 Colour Washing: For new work, the priming coat shall be of white wash with lime

or with whiting. Two or more coat shall than be applied on the entire surface till it represents a smooth and uniform finish. The finished dry surface shall not be powdery and shall not readily come off on hand when rubbed. Indigo (neel) shall however, not to be added.

15.0 PAINTING OF IRON & STEEL WORKS 15.1 Paint to be used for various items of work shall be of best quality and shall be

obtained ready mixed in sealed containers from approved manufacturer. The Tenderer shall obtain the Engineer’s approval for the make and colour of the paint he proposes to use.

15.2 All surfaces shall be thoroughly cleaned of all dirt, loose particles and rust, and

approved prior to application of paint. Workmanship shall conform to lS-1477 (Part - I & III).

15.3 Specific number of coats shall be applied and at least 24 hours shall elapse

between the applications of successive coats. No painting shall be carried out on exterior work in wet weather or on surfaces which are not entirely dry.

16.0 MELAMINE POLISH 16.1 Melamine polish on new wood work (two or more coats) with spray machine after

preparing surface by rubbing down smooth with sand papers, preparation of surface, applying 5 to 10 coats of french sprit polish of natural wood colour, applying two coats of melamine sealer and finally applying two coats of melamine clear as per manufactured specifications complete.

17.0 TEXTURE PAINT 17.1 New exterior surface with premium textured paint as per manufacturer’s

specifications to give protective and decorative finish including cleaning washing of surface etc., complete. On new work (Two or more coats).

18.0 PLASTIC EMULSION PAINT 18.1 Acrylic plastic emulsion paint (approved) to give an even shade. On new work of

interior & Exterior (Two or more coats) as per manufactured specifications as directed by engineer.

19.0 ACCEPTANCE CRITERIA a) All painted surfaces shall be uniform and pleasing in appearance. b) The colour, texture etc. shall match exactly with approved samples. c) All stains, splashes and splatters of paints shall be removed from surrounding

surfaces.



Part – B

DRAINAGE, SANITATION AND WATER SUPPLY



Part – B DRAINAGE, SANITATION AND WATER SUPPLY

1.0 SCOPE

This section covers the construction of drains for the entire area for foul water, surface water and sewage together with all fittings and fixtures and inclusive of ancillary works, such as connections, manholes and inspection chambers used within the building and from the building to the connection to Owner’s main sewer line manholes stipulated here or elsewhere in these specifications. The scope is also inclusive supply, erection, joint testing of all the tanks, pipes, fittings etc. required for the water supply to be taken from the terminal point to the respective buildings.

2.0 INSTALLATION 2.1 Surface Drainage

The Tenderer shall construct the entire drainage scheme as per the drawings. Necessary slopes shall be provided in longitudinal drain.

2.2 General

All pipelines, locations of fittings and fixture etc. shall be as per approved drawings or as directed by the Engineer. Correctness of lines, plumb, orientation, symmetry and levels shall be strictly ensured. All items shall be fully secured against movement in any direction and so located as to allow maintenance where desired by the Engineer.

All pipelines and fittings fixtures shall be installed leak proof. When the works under scope of this specification connect with others the connections shall be such as to prevent any splashing or emission of foul odour and gases.

a) Polyethylene water Tank

Tanks shall meet the requirements of IS:12701. Virgin HDPE granules of approved grade, suitable for drinking water shall be used for making the tank. Carbon black shall be added with the granules. Tanks shall be single piece, seamless construction, moulded by rotational moulding. Shape of tank shall be cylindrical - vertical type with corrugation along the length and bottom of the tank. Tank shall have closed top provided with lid. However, for storage inside, the rectangular loft tank of approved colour shall be provided. Tank shall be provided with all fittings for inlet, overflow, outlet pipes and ball valves including mosquito proof coupling. Tank shall be leak proof. Tank shall be installed with proper support and anchorage for installation and it shall be carried out according to the



recommendation of clause No. 13 of IS:12701-1989.

2.3 Rainwater Down Comers

Rainwater down comers shall be of PVC pipes of 6 kg/sqcm pressure class. Rainwater down comers shall run along and be secured to wall, column etc. Where desired by the Engineer these may have to be installed in chases cut in the structure. All pipes shall be well secured and supported by adequately strong circumferential clamps.. The clamps shall be moulded plastics, split ring type or perforated strap iron type as approved by the Engineer.Suitable spacer shall be provided against the vertical surfaces to which the pipe is fixed. All bends and junctions shall be supplied with water tight cleanouts. All horizontal pipes shall have a minimum fall of 1 in 100.

2.4 Soil and Drainage Pipes 2.4.1 Gradients The minimum gradients of soil and drainage pipe line shall be as follows 100 mm nominal dia 1 in 35 150 mm nominal dia 1 in 65 230 mm nominal dia 1 in 120 300 mm nominal dia 1 in 200 2.4.2 Relation with Water Supply Pipeline Under no circumstances, unless specifically cleared by the Engineer in special

cases, drainage and soil pipes shall be allowed to come close to water supply pipelines.

2.4.3 Laying

Each separate pipe shall be individually set for line, level, plumb etc. Where lengths of sewer or drain pipes are laid in trench, properly painted sight-rails shall be fixed across the trench at a height, equal to length of the boning rod to be used, above the required invert level of the drain or sewer at the point, where the sight is fixed. More sight rails shall be required at manholes, changes of gradient and intermediate positions if the distance of sighting is too far, which shall not be more than 15.0 m apart. The excavation shall be boned in at least once in every 1.8 m. The foot of the boning rod shall be set on a block of wood of the exact thickness of the wall of the pipe. Each pipe shall be separately and accurately boned between sight rails.

2.4.4 For water pipelines, meticulous care shall be taken to avoid chances of airlock

and water hammer. The layout of pipe work shall be such that there is no possibility of backflow towards the source of supply from any cistern appliances whether by siphonage or otherwise. Where desired by the Engineer, pipes shall be concealed in masonry or concrete of the structure. Chases, openings, conduits



as necessary shall be cut or left in the masonry or concrete. Clamps and fittings shall be as per the standard practice and approved by the Engineer.

2.4.5 Support and Protection to Pipelines

All drainage and sewer pipes shall be laid with spigot leading uphill. Preferably the pipes shall rest on solid and even foundations for the full length of the barrel. However, the pipe manufacturer’s instructions as approved by the Engineer shall be followed in the matter of support and jointing. Cast Iron pipes and concrete pipes may be supported on suitable concrete or brick support, where specified. The supports shall be unyielding and strong enough. At least one support shall be located close to each joint. Spacing of intermediate supports shall be as desired by Engineer. Pipes shall be secured to the supports by approved means.

Anchoring of pipes where necessary shall be achieved by suitable concrete encasing designed for the expected thrust.

2.4.6 Entry Into Structures

For entry of the pipelines into any building or structures, suitable conduits under the structures, or sleeves shall be used. The conduits and sleeves shall be such as to allow easy repair and replacement of the pipes. When openings or chases are required to be made in the structure for entry of pipelines, locations and sizes shall be marked and checked by the Engineer. After laying of the pipeline the openings and chases shall be mended.

2.4.7 Ducts

Where solid, waste and ventilating pipes are accommodated in ducts, access to cleaning eyes shall be provided. Connection to drain shall be through a gully trap with sealed cover to guard against ingress of sewer gas, vermin or backflow.

2.4.8 Traps and Ventilating Pipes

Pipes for carrying of the waste from water closets and waste water and overflow water from baths, wash basins, sinks to drains shall be trapped immediately beneath such fixtures. Traps shall have minimum water seal of 50 mm and shall be ventilated whenever such ventilation is necessary to maintain water seal of the trap. Ventilating pipes shall be carried up vertically from the drain to a height of at least 600 mm above the outer covering of the roof of the building or as shown on drawings. All vertical ventilating, anti-syphonage and similar pipe shall be covered on top with a cowl. The cowl shall be made of C.I.

2.4.9 Manholes and Inspection Chambers

The maximum distance between manholes shall be 30 metres unless specially permitted otherwise. In addition, at every change of alignment, gradient or diameter there shall be a manhole or inspection chamber. The distance between manhole or inspection chamber and gully chamber shall not exceed 6 metres unless desired otherwise. Manhole shall be constructed so as to be watertight



under test. The benching at the sides shall be carried out in such a manner as to prevent lodgment for any splashing in case of accidental flashing of the chamber. The channel or drain at the bottom of chamber shall be plastered with (1:2) cement sand mortar and finished smooth to the grade. The channels and drains shall be shaped and laid to provide smooth flow.

Connection to existing sewer lines shall be through a manhole. Manholes shall be provided with C.I. standard covers. The covers shall be close fitting so as to prevent gases from coming out.

2.4.10 Jointing

Jointing of laid pipes shall be so planned as to avoid completely any movement or strain to the joints already made. If any joint is suspected to be damaged it shall be opened out and redone.

All joints between pipes, pipe fittings and manholes shall be gastight when above ground and watertight when underground. Method of jointing shall be as per instruction of the pipe and fittings manufacturer and as approved by the Engineer.However in the absence of any instruction available from the manufacturer, methods as detailed hereunder shall be used.

a) Cast Iron Pipes

Socket and spigot pipes shall be joined by cast lead joints. The spigot shall be centered in the socket of the next pipe by tightly caulking in sufficient turns of tarred gasket or hemp yarn to have unfilled half the depth of socket. When the gasket or hemp yarn has been caulked tightly, a jointing ring shall be placed round the barrel and tightened against the face of the socket to prevent airlock. Molten lead shall then be poured in to fill the remainder of the socket and caulked with suitable tools right round the joint to make up for shrinkage of the molten metal on cooling and shall be finished 3 mm behind the socket face.

In special cases if flanged joints are accepted by the Engineer, the joints shall be made leak proof by inserting approved type of rubber or other gasket not less than 1.5 mm thick. The bolts shall be secured in stages to avoid uneven strain. Damaged gasket shall be replaced.

b) G.I. Pipes

Threads shall be cut with sharp tools, and before jointing, all scales shall be removed from pipes by suitable means. The screw threads of the pipe shall be cleaned out and the joints made by screwing the fittings after treating the threads with approved pipe jointing compound. Once a joint has been screwed up it shall not be backed off unless the threads are re-cleaned and new compound applied.

c) Glazed Stoneware Pipes Tarred gasket or hemp yarn soaked in thick cement slurry shall first be placed

round the spigot of each pipe and the spigot



2.5 Installation All plumbing fittings and fixtures shall be installed in most workman like manner by

skilled workers. Those shall be prefect in level, plumb, plane, locations and symmetry. All items shall be securely anchored to wall and floors. All cuttings in walls and floors shall be made good by the Tenderer.

3.0 TESTING AND ACCEPTANCE 3.1 All pipes, fittings and fixtures shall be inspected, before delivery at the site to see

whether they conform to accepted standards. The frequency of testing and sampling as per IS standard. The pipes shall again be inspected on site before laying by sounding to disclose cracks. All defective items shall be clearly marked and forthwith removed from the site.

3.2 Testing of Pipelines for Drainage & Sanitation

Comprehensive test of all pipe lines shall be made by simulating conditions of use. The method of actual tests shall be decided by the Engineer. All test date shall be recorded and submitted to the Engineer for review and Instruction. The Engineer’s discretion regarding tolerance shall be final.

General guidance for the test are given below :-

a) Smoke Test

All soil pipes, waste pipes, vent pipes & all other pipes when above ground shall be approved gas tight by a smoke test conducted under a pressure of 25 mm of water and maintained for 15 minutes after all trap seals have been filled with water. The smoke is produced by burning oily waste or tar paper of similar material in the combustion chamber of a smoke machine. Chemical smoke is not allowed.

b) For Straightness i) It shall be checked by inserting at the high end of the sewer or drain a smooth ball

of a diameter 1.3 mm less than the pipe bore. In the absence of obstruction, such as yarn or mortar projecting through the joints, the ball will roll down the invert of the pipe and emerge at the lower end; and

ii) By means of mirror at one end of the line and lamp at the other end. If the pipeline

is straight, the full circle of light may be observed. The mirror will also indicate obstruction in the barrel if the pipeline is not straight.

3.3 Testing of Water Mains after Laying

After laying and jointing, the main shall be slowly and carefully charged with water, so that all air is expelled from the main, by providing 25 mm inlet with a stop-cock, allowed to stand full of water for a few days if time permits, and then tested under



pressure. The test pressure shall be 5 Kg/sqcm. or double the maximum working pressure, whichever is greater. The pressure shall be applied by means of a manually operated test pump, or in the case of long mains or mains of a large diameter by a power driven test pump provided that the pump is not left unattended. In either case due precaution shall be taken to ensure that the required test pressure is not exceeded. Pressure gauges shall be accurate and shall preferably have been recalibrated before the test. The pump having been stopped, the test pressure shall maintain itself without measurable loss for at least five minutes. The end of the mains shall be closed by fitting a watertight expanding plug and plug shall be secured by struts to resist end thrust of the water pressure in the mains.

3.4 Testing of Service Pipes and Fittings

The service pipes shall be slowly and carefully charged with water allowing all air to escape avoiding all shock or water hammer.

3.5 Fixture etc.

All fixtures and fittings shall be connected by Water tight joints. No dripping shall be accepted.

4.0 IS CODES Some of the applicable Indian Standards, Codes are referred to here below:

Lastest editions shall always be referred.

IS : 1172 Basic requirements for water supply, drainage and sanitation. IS :1239 (Part I & II) Mild Steel Tubes and Mild Steel Tubulars and

other wrought Steel Pipe fittings. IS :3486 Cast Iron Spigot and Socket drain pipes IS : 3589 Electrically welded steel pipe for water, gas and sewage

(200mm to 2000 mm nominal diameter). IS : 1537 Vertically cast iron pressure pipe for water, gas and sewage. IS : 1742 Code of practice for building drainage. IS : 5329 Code of practice for sanitary pipe work above ground for

building IS : 1538 Cast iron fittings for pressure pipes for water, gas and

sewage. IS : 1230 Cast iron rainwater pipes and fittings. IS : 1729 Sand cast iron spigot and socket soil, waste and ventilating

pipes, fittings and accessories. IS : 1626 Asbestos cement building pipes, gutters. IS : 2065 Code of practice for water supply in building. IS : 1726 Cast iron manhole covers and frames intended for use in

drainage works. IS : 5961 Cast iron gratings for drainage purposes. IS : 5219 (Part - I)

‘P’ and ‘S” traps, cast copper alloy traps IS : 771 Glazed fire dry sanitary appliances



IS : 772 General requirements of enameled cast iron sanitary appliances

IS : 774 Flushing cistern for water closets and urinals (Valve less Siphonic type)

IS : 775 Cast iron brackets and supports for wash basin and sinks. IS : 2548 Plastic water closet seats and covers. IS : 2527 Code of practice for fixing - rainwater gutters and downpipes

for roof drainage. IS : 1068 Chromium plating IS : 1073 Ball valves including floats for water supply purpose.



2.17 NORMS OF CEMENT CONSUMPTION

1.0 GENERAL 1.1 For calculating the requirements of cement in various items of work the following

standards shall be adopted. Over the above theoretical quantity of cement, additional allowance upto plus or minus 3% shall also be allowed as certified by the Engineer.

1.2 For items not covered in this standard, CGPWD 2009 & CPWD standards shall

be followed or calculated as per uses/requirement in absence of standard norms. Cement required for enabling work and cement required for testing purposes will be taken into account for consumption purpose. However, in no case such quantity should exceed 5% of the total cement used in the work or as certified by the Engineer based on actual observation whichever is less.

2.0 MASONRY WORK

Sl. No.

Description of Item Cement requirement

1. NIL NIL NIL

2. Random Rubble Masonry in CM (1:6) 0.825 quintals per cum

3. Coursed Rubble Masonry in CM (1:6) 0.75 quintals per cum

4. AAC block masonry 100thk. CM (1:4) 0.57 quintals per cum

5. Brick work in CM (1:6) 0.625 quintals per cum of BW

6. Half brick work in CM (1:3) 1.43 quintals per 10 sqm of area

7. Half brick work in CM (1:4) 1.06 quintals per 10 sqm of area

3.0 PLAIN/REINFORCED CONCRETE

Sl. No.


1.

RCC/PCC of nominal mix (1:4:8) complete (excluding finishing with CP)

1.70 quintals per cum of concrete

2.

RCC/PCC of nominal mix (1:3:6) complete (excluding finishing with CP)


3. RCC/PCC of nominal mix (1:2:4) complete (excluding finishing with CP)


4. RCC/PCC of nominal mix 4.00 quintals per cum of



Sl. No.


(1:1.5:3) complete (excluding finishing with CP)

concrete

4.0 CONTROLLED CONCRETE – PLAIN AND REINFORCED

S. No.


1. Concrete grade (i) M-7.5B (ii)M-10B

To be mutually agreed based on mix design to be prepared by Tenderer & approved by the Engineer plus wastage and all incidentals as decided.

2. Concrete grade (i) M-15C (ii) M-15D

3. Concrete grade (i) M-20C (ii) M-20D

4.

Concrete grade

(i) M-25C (ii) M-25D

To be mutually agreed based on mix design to be prepared by Tenderer and approved by the Engineer plus wastage and all incidentals as decided.

5.

Concrete grade

(i) M-30C (ii) M-30D

5.0 FINISHING

S. No.


1. 6 mm thick C.P. 1:3 0.367 quintal per 10 sqm area





5.0 FLOORING

S. No.


1. Marble flooring over 20mm thick base of CM1:4.

0.13512 quintal per 1 sqm area

2. Kota stone flooring over 20mm thick base CM 1:4.


3. Ceramic glazed wall tiles of all sizes over 12mm thick bed of CM 1:3




4. Vitrified / Ceramic floor tiles of all sizes over 20mm thick bed of CM 1:3


7.0 MISCELLANEOUS

S. No.

Description of Item

Cement requirement

1. CC 1:2:4 for pavements 3.20 qunital per cum

2.

Laying & making Kerb channel 300mm wide and 50mm thick of CC 1:3:6 over 75mm thick bed of dry brick ballast 40mm size well rammed and consolidated and grouted with fine sand including finishing the top smooth etc.,)

0.11 quintal per Rm

3. Cement-sand mortar :-

a) (1:1) (1 cement : 1 sand) 10.2 quintal per cum

b) (1:2) (1 cement : 2 sand) 6.8 quintal per cum

c) (1:3) (1 cement : 3 sand) 5.1 quintal per cum

d) (1:4) (1 cement : 4 sand) 3.8 quintal per cum

e) (1:5) (1 cement : 5 sand) 3.1 quintal per cum

f) (1:6) (1 cement : 6 sand) 2.5 quintal per cum



2.18 DIMENSIONAL TOLERANCES

1.0 GENERAL 1.1 The materials used in construction shall, besides conforming to the specifications

and standards mentioned, be the best of the existing kinds obtainable. Where a particular ‘Brand’ or ‘Make’ of material is specified such ‘Brand’ or ‘Make’ of material alone shall be used.

1.2 A high standard of workmanship and accuracy shall be achieved in all sections

and parts of the work. The workmanship shall be in accordance with the latest and the best civil engineering practice.

1.3 The Tenderer shall ensure that all sections of the work are carried out with utmost

care to achieve the dimensions shown in drawings or specifications. In the absence of such specific mention in drawings the following dimensional deviations may be tolerated, provided they do not impair the appearance or render the particular section of work unacceptable to the purpose for which it is intended. Tolerance for materials and workmanship not covered in this part as mentioned hereinafter will be in accordance with the relevant IS code.

Description Permissible tolerance

Building bricks in length, width & height : As per IS:1077

Laterite stone, in length, width & height : 5 mm

Natural building stones

a)For stones required in ashlar masonry

b) For stones required

other than in ashlar masonry

Length, width : 5 mm

Height : 3 mm

Length & width : + 5 mm & -10 mm

Height : 5 mm

Concrete & Reinforced concret pipes

Length : 1% of standard length

Internal dia upto 300mm

: + 3 mm, - 1.5 m

Cast iron spigot & socket pipes and fittings

Length of fittings : 10 mm

Length of pipes : 20 mm

Thickness : - 1 mm

Internal dia of socket

: 3 mm

Depth of socket : 10 mm

External dia upto 75mm

: 3 mm

100 mm : 3.5 mm

150 mm : 4 mm



Description Permissible tolerance

Stone ware pipes Upto 75 cm dia length

10 mm

Upto 90 cm dia length

15 mm

In thickness of barrel & socket not exceeding 450 mm

2 mm

In thickness of berrel and socket between 50 to 600 mm

3 mm

Glazed tiles Length of all four sides

2.5 %

Individual dimensions and thickness

2.5 %

Metal Doors, Windows & Ventilators

In overall dimensions

1.5 mm

Wooden Doors Windows & Ventilators

In overall dimensions

3 mm

All components of shutter except glazing bars

Width 3 mm

Thickness 1 mm

Glazing bars Width & thickness 1 mm

Mild steel tubes, tubulars and other wrought steel fittings

Thickness Butt welded light tubes + not limited , - 8 %

Medium and heavy tubes

+ not limited, - 10 %

Seamless tubes + not limited, - 12.5 %

Weight Single tube (irrespective of the quality)

+ 10 %, - 8 %

For quantity of less than 150 m of one size

+ 10 %, - 8 %

For quantity of 150 m and over of one size

+ 4 %, - 4%

Earth work

Finished level of site leveling in hard rock 50 mm

Finished level of site leveling except for hard rock

100 mm

Level of pits, trenches and foundations 50 mm



Concrete & reinforced concrete

Footings Plan dimensions + 50 mm, - 12 mm

Eccentricity 0.2 times the dimension of footing in the direction limited to 50 mm

Thickness 0.05 times the specified thickness

Foundations Deviation of plane and lines of their intersection from vertical or inclination along full height

20 mm

Deviation of horizontal plane from horizontal line

For 1 m of plane in any direction

5 mm

For the whole plane 20 mm

Sizes of cross section 8 mm

Surface of inserts to support loads

5 mm

Length of elements 20 mm

Buildings Surface when checked with a 2 m long straight edge

8 mm

Sizes of cross section + 8 mm, - 0 mm

Length of elements 20 mm

Deviation from horizontal plane for whole building

10 mm

verticality 1 in 1000 of height

For columns supporting floor beams

10 mm

For frame columns linked with crane girders & beams

10 mm

Reinforced concrete

Length 20 mm

Flatness of surface when checked with a 2 m long straight edge

8 mm

Level of top surface to support assembled elements

5 mm

Deviation in planes and lines of intersection from vertical

15 mm

Size of cross section 8 mm

Placement of reinforcement

Length of bar upto 75 cm long (other that straight bars)

+ 3 mm, - 5 mm




75 to 150 cm long + 5 mm, - 10 mm

150 to 250 cm long + 6 mm, -15 mm

250 cm long and above + 7 mm, -25 mm

Straight bars, all lengths 25 mm

Spacing bars + 5 mm

Anchor bolts Shift in location in plan 5 mm

Same when bolts are located outside of structural columns

+ 10 mm

Top level 20 mm

Threaded length + 30 mm

Masonry work

For walls For pillers

Width 10 mm 10 mm

Shift in axes 10 mm

Deviation from horizontal line for every 10 m length

15 mm

Flatness of surface when checked with a 2 m long straight edge

10 mm 5 mm

Deviation in lines separating storyes

15 mm 15 mm

Deviation of surface from vertical and at angles and corners for 1 storey

10 mm 10 mm

For whole building

30 mm 30 mm

Dimensions of openings for doors, windows, etc.

+ 15 mm, - 0mm

Flooring, Skirting, Dado and Plastering

In situ flooring 4 mm

Concrete tile and mosaic in any 3 m length

3 mm




In large open area 15 mm

Wall tiling surface should not vary from general plane by more than

1 in 200

Marble and such superior work

In any 2 m length 1.5 mm

In any row 3 mm

Plastered surfaces Flatness when checked with a 2 m long straight edge

3 mm

Vertical surfaces upto 1 storey

5 mm

Over full height 10 mm

Metallic inserts

On assembled components

Length & width 3 mm

Road work

The levels of subgrade and different pavement courses should not vary from those calculated with reference to the longitudinal and cross sections of the road as shown on the drawing beyond the tolerance given below:

Subgrade 25 mm

Sub base + 20 mm

Base 15 mm

Wearing coat 6 mm



2.19 METHOD OF MEASUREMENT

1.0 GENERAL 1.1 The works executed shall be measured in accordance with stipulations provided

in the method of measurement of works IS:1200 (Part 1 to 28) – 1971 to 1993 / SP:27, as applicable, all latest versions, .

1.2 The measurement considered shall be purely for the purpose of clearance of stage payments and shall not in any way indicate change of scope. No claims shall be entertained on this account.



2.20 SAFETY CODE

1.0 GENERAL 1.1 This specification deals with the subject matter of safety and protection to be

observed in the Civil Construction. This shall be followed along with all related statutory requirements/obligation including Government byelaws, codes, ordinance of local or central authorities related to the construction work.

1.2 In case of complicated work like deep excavation, intricate shuttering and

formwork, excavation in loose soil and below water table, stacking of excavated earth etc., work plan with necessary drawings and documents have to be prepared by the Tenderer and got approved by the Engineer.

1.3 Necessary reference shall be made to the following Indian Standard Codes on

safety requirements for various type of work: 2.0 INDIAN STANDARD

4130 – 1991 Demolition of Buildings 3764 – 1992 Excavation Work 4014 – (P-II) – 1967 Scaffolding, Steel Tubular 3696 – (P-I & P-II) Scaffolds and Ladders 1987 to 1991 4138 – 1977 Working in Compressed Air 7293 – 1974 Working with Construction Machinery 8989 – 1978 Erection of Concrete Framed Structures

3.0 EXCAVATIONS 3.1 No excavation or earthwork below the foundation level of an adjoining building

shall be taken up unless adequate steps are taken to prevent damage to the existing structure or fall of any part.

3.2 Every accessible part of an excavation, pit or opening in the ground into which

there is a danger of persons falling shall be suitably fenced with a barrier upto a height of one metre suitably placed from the edge of the excavation as far as practicable.

3.3 No material or load shall be placed or stacked near the edge of the excavation or

opening in the ground. The excavated material shall not be placed within 1.5 m of the trench or half of the depth of the trench whichever is more.

3.4 Cutting shall be done from top to bottom. No undercutting of sides of excavation shall be allowed.

3.5 Materials shall not be dumped against existing walls or partition to a height that

may endanger the stability of the walls.



3.6 While withdrawing piled materials like loose earth, crushed stone, sand, etc. from the stock piles, no over hanging shall be allowed to be formed in the existing dump.

3.7 No material on any of the sites of work shall be so stacked or placed as to cause

danger or inconvenience to any person or public or any other agency at work. 4.0 SCAFFOLDING, LADDERS & SHUTTERING 4.1 For all works that cannot be done from the ground level or from part of any

permanent structure or from other available means of support, soundly constructed scaffoldings of adequate strength shall be used as a safe means of access to places of work.

4.2 All scaffolding shall be securely supported or suspended and wherever necessary

be properly braced to ensure stability. 4.3 All working platform and stages from which workers are liable to fall shall be of

adequate width depending on the type of work done and closely boarded and planked.

4.4 Every ladder shall be securely fixed at top and bottom. A ladder more than 5 m

long shall have a prop. 4.5 No portable single ladder shall be over 8 m in length. 4.6 Unfinished scaffolding which is under construction shall be prominently marked

as unsafe and any access points shall be closed. 4.7 Shuttering The above remarks shall be applicable for this also. Shuttering, particularly for

slabs, should be treated as a scaffold. Unfinished shuttering should be marked as dangerous similarly the finished form work should be adequately supported, care being taken to avoid trap door effects.

5.0 SAFETY APPLIANCE 5.1 Those engaged in white washing and mixing or stacking of cement bags or any

materials which is injurious to the eyes, shall be provided with protective goggles. 5.2 The Tenderer shall not employ men or women below the age of 18, on the work

of painting with products containing lead in any form. Whenever men / women above the age of 18 are employed on the work of lead painting the following precautions shall be taken:

5.3 All necessary personnel safety equipment such as safety helmets, safety boots,

safety belts, leather gloves for welders, clear glass safety goggles etc., as considered adequate by the Engineer have to be kept available for the use of persons employed at the site of work and maintained in condition suitable for



immediate use and Tenderer shall take steps to ensure proper use of equipment by the workers.

5.4 Sign boards 1 x 1.5 m in size with the following wording shall be erected at the

access to these areas. “CONSTRUCTION AREA, HELMET REQUIRED BEYOND THIS POINT”.

5.5 Arrangement for rendering prompt and adequate first aid to the injured persons

shall be maintained at every work site under the guidance of a medical officer-in-charge of the project. Depending upon the magnitude of the work the availability of an Ambulance at a very short notice (a telephone call) shall be ensured.

5.6 First-aid arrangements commensurate with the degree of hazard and with the

number of workers employed shall be maintained in a readily accessible place throughout the working hours. At least one experienced first-air attendant with his distinguishing badge shall be available on each shift to take care of injured persons. Arrangements shall be made for calling the medical officer, when such a need may arise. It is recommended that foreman/assistant foreman / supervisor / permanent workmen who are normally present at each working place in each shift are given adequate training on first-aid methods to avoid employment of a separate attendant

6.0 MISCELLANEOUS 6.1 The Tenderer shall provide necessary fencing and lights to protect the public from

accident. 6.2 To ensure effective enforcement of the rules and regulations relating to safety

precautions, the arrangements made by the Tenderer shall be open to inspection by the Engineer and Owner.

6.3 All sources of ignition shall be prohibited in areas where flammable liquids are

stored, handled and processed. Suitable warning and ‘NO SMOKING’ signs shall be pasted in all such places. Receptacles containing flammable liquids shall be stacked in such a manner as to permit free passage of air between them.

6.4 All combustible materials shall be continuously removed from such areas where

flammable liquids are stored, handled and processed. All spills of flammable liquids shall be cleared up immediately. Containers of flammable liquids shall be tightly capped.

7.0 REPORTING OF ACCIDENT 7.1 All accidents, major or minor must be reported immediately. The Tenderer, will

provide first aid to the injured person immediately and the injured person shall report to the first aid station along with the ‘INJURED ON WORK’ form duly filled in quintuplicate and submit to the Medical Officer of the First Aid Station”.

7.2 Serious Injury



7.3 In case of serious injury, the following procedure shall be adopted by the Tenderer:

a) Provide First Aid at his own First Aid Station. b) Take the injured person to the Hospital along with the “INJURED ON WORK”

form duly filled in.

c) Reporting the accident to the OwnerEngineer by the Tenderer. 7.4 Fatal Accident

Fatal accident must be reported immediately to the Engineer/Owner as well as to the Police.

8.0 PENALTY

Failure to observe the Safety Rules will make the Tenderer liable to penalty by way of suspension of work, fine and termination of contract.



2.21 SAFETY CODE FOR CONTRACTORS

1.0 SCOPE OF WORK

1.1 Safety is the responsibility of the Contractor and his staff Employees/ workmen engaged/ deployed for execution of work under the Contract, individually and collectively. For this purpose, the Contractor staff means and includes all its associates and sub-contractors / vendors/ sub-vendors and their staffEmployees/ workmen deployed for execution of the work covered under the Contract. The Contractor shall ensure that his workmen participate in the safety awareness, health care and safety training programmes whenever such programmes are organised by the Employer or the Contractor.

1.2 The Contractor’s scope of work shall include, but not limited to execution of work/

Contract, adequate safety arrangements for men machinery etc. engaged during the execution of the Contract.

1.3 While executing the Contract, the Contractor / his supervisor has to ensure safety of the surroundings with regard to Employer’s work place/ site and other contractor’s men/ machine/ materials/ system etc.



2.22 GENERAL TERMS & CONDITIONS

1.0 SUPERVISOR

1.1 The Contractor shall engage qualified and competent supervisors for executing the Contract. The supervisor must be able to i) read drawing; ii) understand the safety aspect of the job ; iii) take necessary precautionary measures ; iv) ensure leadership for the safe execution of the job.

2.0 SAFETY SUPERVISION 2.1 The Contractor shall provide at least one competent full time safety supervisor

who shall be nominated for each contract depending on the number of persons employed and safety requirements of the job including round the clock supervision on safety aspects, wherever required.

3.0 LEGAL AND PENAL 3.1 The Contractor shall abide by the provisions of all statutory acts and rules as

applicable and maintain register/ documents, submit periodic reports and returns furnish information/ report relating to accidents occurring in the area of work to competent authority in time.

3.2 The Contractor shall be liable for prosecution and penalty in accordance with as

prescribed under the law of land, terms & conditions of Contract as well as rules of the Company relating to safety, for not observing those provisions by the Contractor or his employees/ workmen.

3.3 The Contractor shall keep the Company indemnified against all losses/ claims

due to accidents/ injuries/ damages caused at the Contractor’s works site. He shall be fully responsible for accidents caused due to the Contractor or his agents or workmen’s negligence or carelessness in regard to observance of the safety requirements and shall be liable to pay compensation for injuries.

3.4 The Safety violations have been classified in to five categories (I to V) as

enlisted at Annexure-1. Without prejudice to the right conferred by the Clause 5.4 above for stoppage of work for violations of safety requirement, the contractor shall be liable for penalty at the rates indicated below depending upon the category of violation.

Category Penalty Rs./ Violation

1. 1000/- 2. 2500/- 3. 7500/- 4. 20000/- 5. 3 lakhs or 20% of the contract’s value whichever is lower.



In the event of repetition of violation for third time and onwards by the contractors, the penalty shall be imposed at double of the penalty rate for the second violation.

4.0 PPE & SAFETY APPLIANCES 4.1 The Contractor shall provide all the PPE (Personal Protective Equipment) and

safety appliances required to carry out the job to all the workmen deployed by the Contractor and also ensure that his workmen use those PPE and safety appliances while on the job. The Contractor shall not pay any cash amount in lieu of PPE to the workers.

4.2 If the Contractor fails to ensure provision of safety appliances required to carry

out the job safely to the workmen and that his workmen do not use the PPE and safety appliances as needed for safe working, Engineer and the Safety Engineering Department upon the satisfaction that the Contractor is not conforming to the safety requirement may direct the Contractor for stoppage of work and require the Contractor to remedy the defects. The Contractor shall not proceed with the work until he has complied with each direction to the satisfaction of Engineer and Safety Engineering Department.

5.0 SKILL AND COMPETENCE OF WORKMEN 5.1 The Contractor shall be responsible to engage competent and skilled workers. 5.2 Before starting of the day’s job, the Contractor shall ensure that safety briefing

has been done to his workers by himself or his supervisors who have been imparted safety induction earlier and also maintain records to this effect.

6.0 PHYSICAL FITNESS OF WORKMEN 6.1 The Contractor shall ensure that his employees/ workmen subject themselves to

such medical examination as required under the law or under the company’s rule and keep a record of the same.

6.2 The Contractor shall not permit any employee/ workmen to enter the work area

under the influence of alcohol. 7.0 DEALING WITH ACCIDENT 7.1 The Contractor shall maintain a safety register, keep records of all minor and

major accidents, serious or averted (near miss) accidents, with or without injuries to human beings and shall submit a report about the accident to the Engineer promptly, on the form prescribed by the Employer.

7.2 The Contractor’s supervisor/ officer in charge shall arrange to take the injured

person first to Plant Medical Unit with IOW (Injury on Work) form given on Annexure-1C and under no circumstances, take the injured person directly to his own doctors. The information of fatal accident shall be given on Annexure-1D.



7.3 The Contractor shall not interfere with the site of accident, unless inspected and

/ or permitted by the competent authorities. 7.4 The Contractor shall arrange to avoid any sort of commotions at site in the event

of an accident.

8.0 MISCELLANEOUS 8.1 Safety Records (Statutory Records)

The Contractor shall keep record of :

i) Test certificates of all lifting tools & tackles, pressure vessels etc. ii) Periodical inspection report of safety appliances, iii) Maintaining accident analysis report in proper format in consultation with

Employer’s Engineer. iv) Safety record as per Factory Rules/ Safety Codes or any other statutory

provision shall also be maintained. However, necessary help in this regard can be taken from concerned Safety Organization.

8.2 Electrician/ Other Electrical Personnel

The Contractor shall engage qualified and competent electricians and other electrical personnel while working on electrical lines (which may be High Tension, Medium Tension and Low Tension electrical lines) for safe execution of Contract. The electricians and other electrical personnel must possess requisite certificate issued from competent authority. Electrical Equipment. The Contractor shall ensure proper earthing of all electrical equipment/ machinery prior to start of the machine. The Contractor shall also ensure daily examination of the earthing of equipment/ machinery prior to start of the job in order to avoid electrical hazards. The Contractor shall ensure use of proper cable (may be welding cable or power cable or control cable). The joints of the cables shall be perfectly insulated. The Contractor shall also ensure the use of proper plugs, sockets and other electrical fittings while executing any Contract.

8.3 House keeping i) The Contractor shall ensure good housekeeping in his working area, fabricating

yard as well as at erection site. The safe approach to the working place must be ensured. Place for keeping raw materials, semi-finished materials should be clearly marked with proper identification. Machine component shall be kept properly under shed.

ii) The Contractor shall keep the scrap material at one place duly barricaded and

shall remove the same regularly from the work place.



iii) The Contractor shall stack properly the fabricated or any other items likely to be erected very shortly at erection site, in such a way that the materials do not cause congestion at site or create unsafe condition for free and safe approach.

iv) The Contractor should put up a board (minimum 4’ x 3’) indicating the name of

the Contractor, details of the job, order No., starting date and likely completion date of the job. On completion of the job, the Contractor shall clear the site (good materials and scrap). The board so displayed shall be taken out of the site. Any material left after the job is over will be picked up by the Employer and the Contractor will be charged back for the same.

v) Barricading: The Contractor shall ensure barricading of the unsafe area, which

can lead to accidents to any unknown person working in that area. In order to remove unsafe condition and prevent accidents, this unsafe area such as trench/ pit/ foundation, any type of opening made or left in any floor of the building including staircase etc. must be barricaded. The hand railings shall be immediately provided in all the floors, stairs etc. before proceeding for erection/ dismantling.

vi) Removal of muck shall be done within 24 hours from road sides. vii) The Contractor shall be responsible for removing all unwanted materials /

scaffolds from the work site. viii) The Contractor shall issue written as well as oral instructions from time to time,

in addition to the precautions, measures spelt out above so as to ensure that the workers adhere to safety norms specifically needed for the particular job during the execution of the work. .

8.4 The Contractor shall provide clearly demarcated access and exits at work site to

take care in case of outbreak of fire or any other eventualities. 8.5 The Contractor shall ensure the availability of first aid box at the working sites. 8.6 Make available all necessary personal safety equipments/appliances such as

safety helmets, safety boots, full body harness, gloves, leather gloves for welders, clear glass, safety goggles and other relevant PPEs as advised by Safety Department or Departmental Safety Officer for the use of persons employed at the site of work and maintain in condition suitable for immediate use and shall take steps to ensure proper use of equipment by the workers

8.7 Usage of full body harness and anchoring it at rigid place is to be ensured by the

Contractor or his supervisor who shall be present all the time on working spot. 8.8 Contractor shall also ensure the presence of supervisor at site during the

execution of the job. 8.9 (i) Operating Authority will assess the penalty amount having regard to all the

circumstances, in particular the nature and gravity of the violation on the advice of the Head of safety Department and will issue a show cause notice specifying



therein the proposed penalty. Considering the cause shown by the Contractor, if any, the Operating Authority shall pass final orders which shall then be binding on the Contractor. The penalty amount shall be recoverable from any bill and / or EMD / SD of the Contractor without any further reference to him.

(ii) In case of violations from Category (I) & (II) i.e. occasional violation and minor

violation, if repeated for the second time and onwards, the penalty will be recovered, from the dues of the contractor by the Finance Department on the advice from SED (Safety Engineering Department) officials and the Operating Authority will be kept informed only.

(iii) For the violations of Category- III and Category – IV as mentioned above and detailed in the Annexure, if repeated for the second time and onwards, the penalty will be recovered by the Finance Department against an advice from SED (As decided in consultation with the Operating Authority within 3 days from violation).

(iv) In case of violation of Category – V i.e Fatal cases, SED officials will impose fine

of Rs. 3,00,000/- or 20% of the contract value whichever is lower on the contractor without consulting Operating Authority and direct Finance Deptt. To deduct from the contractor’s dues. The Enquiry Committee of the fatal cases may recommend suspension / banning business dealing with the contractor, if found appropriate.

8.10 Contractors should ensure that his workers follow all jobs specific safety

precautions as instructed from time to time by Contract Operating Authority or his representative.

8.11 a) Persons working on platform above 02 meter from the ground level and persons

working on the ground level on the periphery of the pit which is 02 meter or more deep must wear ISI safety belt and persons working on the platforms which are 05 meter above the ground level, but less than 10 meters, must undergo safety training for ‘Working at height’ being imparted by Safety Engineering Department and must also wear safety belt. A certificate for such safety training for ‘Working at height’ will be issued to the person by Safety Engineering Department valid for a maximum period of one year.

b) Persons working on the platform above 10 meter from the ground level and

persons working on the ground level on the periphery of the pit which is 10 meter or more deep must use ISI safety Belt and obtain medical / mental fitness certificate from the Medical Officer of the company / Civil Surgeon, Nagarnar. On the basis of this certificate, Safety Engineering Department will impart safety training for working at height and issue height pass. Height pass issued will be in the name of individual worker and its validity will be for a maximum period of 01 year only.

c) on expiry, certificates of safety training for working at height as per (a) above

and height passes as per (b) above will be renewed after the workers passes the tests and imparted training once again.



Annexure-I

Category Violations Fine

I. 1. Occasional violation of not wearing crash helmet in works/ office area.

Rs.1000/-

II. Minor Violations. 1. Height pass not made/ available. 2. Unauthorized entry at height/ hazardous

location. 3. Proper ladder/ steps not provided for

descending. 4. Shuttering not done (below 2 Mtr level) of

excavation. 5. Over hanging burden in pit not removed in

excavation. 6. Power cable clamped with GI wires to post/

pillar. 7. Power cable tied on reinforced rod/ structure

without proper insulation. 8. Loose connection taken from board without

proper board plug. 9. Fitness certificate of cranes/ hydramoc/

heavy vehicles not available. 10. Crane rope conditions not OK. 11. Rope of crane not clamped properly. 12. Tyres of vehicle having patching/ bolting. 13. Not wearing safety helmet at site. 14. Working in slippers/ barefoot. 15. Hand gloves not used. 16. Gas cutting without goggle. 17. Rolling/ lifting of cylinder/ dragging on the

ground (without cage). 18. Welding with non-standard holder. 19. Welding machine earthing not done (double

body earthing). 20. Gas Hose Pipe clamping done by wires. 21. LPG cylinder date expired/ over. 22. Wet bags not put on gas cylinder. 23. Loading/ unloading of cylinder – cushion not

given. 24. Condition of hose pipe not good. 25. Working with leaking cylinder. 26. Using non power cable instead of welding

cable. 27. Working without work permit/ shut-down. 28. Not putting red flags/ stopper. 29. Dismantling of structure without authorized

plan. 30. Unauthorized Oxygen tapping.

Rs.2500/-



Category Violations Fine

31. Working on NMDC installation without permission.

32. Not having proper gate passes/other area passes.

33. Use of damaged slings / tools/ropes. 34. Hand grinders / mixer machines without

guard. 35. Not reporting of accident. 36. Taking shelter behind electrical panel. 37. Driving of heavy vehicles on the main road

during restricted hours. 38. Parking at unauthorized place. 39. Truck side panel/ broken, not OK. 40. Dropping/ spillage of material on the road. 41. No number plate on the vehicle. 42. No indicator light/ brake light on vehicles.

III. Major Violations. 1. Using non-standard material for scaffolding. 2. Railing not given at opening of floor. 3. Scaffolding planks not tied. 4. Throwing / dropping of material from height. 5. Proper ladder/ approach not given for

working at height. 6. Walkway/ cross over path not provided. 7. No barricading of excavated pits. 8. No top cover on power distribution board. 9. Sleeping under truck. 10. Absence of supervisor at work site. 11. Welding screen not used.

Rs.7500/-

IV. High Risk Violations. 1. Full body harness (FBH) not wearing. 2. Life line of FBH not anchoring. 3. Floor opening left unguarded in the area of

work. 4. Working at roof without daily permit.

Rs.20,000/-

V.

Fatal Accident Cases. Rs.3,00,000/-or 20% of contract value



ANNEXURE-1C

(Name of the Organisation)

(Name of the Unit)

INJURY ON WORK

(Contractor’s Employees)

1. Name of the firm :

2. Name of the Contractor :

3. Name of Department (Awarding Contract) :

4. Name of the injured person :

5. Designation, gate pass No./ Token No. :

6. Date and time of accident :

7. Department where accident happened :

8. Exact place of occurrence :

9. Eye witness (name & designation) :

1)

2)

10. Persons appraised of :

1)

2)

11. Brief account of the accident :

Date: Signature of the Contractor /Contractor’s supervisor

(Particulars to be filled in by the Medical Officer)

1. Nature of injury :

2. Injured person is fit/ unfit to return : to duty.

3. If unfit, period of rest recommended :

4. This employee has bee notified that : he is fit/ unfit as per Sl. No.2. (strike out which is not applicable).

Date: Signature of the Medical Officer.

Name : Seal :



Note :

1. When an injury occurs to a Contractor’s employee while inside the factory, the injured person should be sent to Plant Medical Unit immediately, with this form in triplicate.

2. The Medical Officer on duty at Plant Medical Unit will retain one copy and send one copy to Safety Engineering Department. The third copy shall be returned to the Contractor concerned after duly filling up the forms. In case, the Contractor takes the injured person to his private doctor, he shall do so by giving a written undertaking to the doctor in Plant Medical Unit and to the Manager, Safety Engineering Department. If the private doctor declares the injured person unfit for duty more than 2 days, this becomes a reportable accident under the Factories Act and the Contractor shall immediately report this to the Manager, Safety Engineering Department for sending reports to concerned Government agencies. The Contractor shall also keep the manager (Safety) inform about:

a) The condition of the injured person;

b) The period of disability and

c) Any loss of earning capacity certified by the doctor.

The Contractor shall produce the fitness certificate from the attending doctor after the injured person is declared fit for duty.

(Name of the Organisation)

(Name of the Unit)



2.24 MATERIALS, PLANT AND WORKMANSHIP

1. Quality of Materials, Plant and Workmanship: All materials, Plant and workmanship shall be:

(a) of the respective kinds described in the Contract and in accordance with the

Engineer’s instructions, and

(b) subjected from time to time to such tests as the Engineer may require at the place

of manufacture, fabrication or preparation, or on the Site or at such other place or places as may be specified in the Contract, or at all or any of such places.

The Contractor shall provide such assistance. labour, electricity, fuels, stores, apparatus and instruments as are normally required for examining, measuring and testing any materials or Plant and shall supply samples of materials, before incorporation in the Works, for testing as may be selected and required by the Engineer.

2. Cost of Samples: All samples shall be supplied by the Contractor at his own cost

if the supply thereof is clearly intended by or provided for in the Contract. All samples shall be supplied by the Contractor at his own cost if the supply thereof is clearly intended by or provided for in the Contract.

3. Cost of Tests: The cost of making any test shall be borne by the Contractor if

such test is:

(a) clearly intended by or provided for in the Contract, or

(b) particularised in the Contract (in cases only of a test under load or of a test to

ascertain whether the design of any finished or partially finished work is appropriate for the purposes which it was intended to fulfil) in sufficient detail to enable the Contractor to price or allow for the same in his Tender.

4. Engineer’s Determination where Tests not provided for: Where, pursuant to

Sub-Clause this Sub-Clause applies the Engineer shall, after due consultation with the Employer and the Contractor, determine:

(a) any extension of time to which the Contractor is entitled under Clause 44, and (b) the amount of such costs, which shall be added to the Contract Price, and shall

notify the Contractor accordingly, with a copy to the Employer.

5. Inspection of Operations: The Engineer, and any person authorised by him, shall at all reasonable times have access to the Site and to all workshops and places where materials or Plant are being manufactured, fabricated or prepared for the Works and the Contractor shall afford every facility for and every assistance in obtaining the right to such access.



6. Inspection and Testing: The Engineer shall be entitled, during manufacture,

fabrication or preparation to inspect and test the materials and Plant to be supplied under the Contract. If materials or Plant are being manufactured, fabricated or prepared in workshops or places other than those of the Contractor, the Contractor shall obtain permission for the Engineer to carry out such inspection and testing in those workshops or places. Such inspection or testing shall not release the Contractor from any obligation under the Contract.

7. Dates for Inspection And Testing: The Contractor shall agree with the Engineer

on the time and place for the inspection or testing of any materials or Plant as provided in the Contract. The Engineer shall give the Contractor not less than 24 hours notice of his intention to carry out the inspection or to attend the tests. If the Engineer, or his duly authorised representative, does not attend on the date agreed, the Contractor may, unless otherwise instructed by the Engineer, proceed with the tests, which shall be deemed to have been made in the presence of the Engineer. The Contractor shall forthwith forward to the Engineer duly certified copies of the test readings. If the Engineer has not attended the tests, he shall accept the said readings as accurate.

8. Rejection: If, at the time and place agreed in accordance with Sub-Clause, the

materials or Plant are not ready for inspection or testing or if, as a result of the inspection testing referred to in this Clause, the Engineer determines that the materials or Plant are defective or otherwise not in accordance with the Contract, he may reject the materials or Plant and shall notify the Contractor thereof immediately. The notice shall state the Engineer's objections with reasons. The Contractor shall then promptly make good the defect or ensure that rejected materials or Plant comply with the Contract. If the Engineer so requests, the tests of rejected materials or Plant shall be made or repeated under the same terms and conditions. All costs incurred by the Employer by the repetition of the tests shall, after due consultation with the Employer and the Contractor, be determined by the Engineer and shall be recoverable from the Contractor by the Employer and may be deducted from any monies due or to become due to the Contractor and the Engineer shall notify the Contractor accordingly, with a copy to the Employer.

9. Independent Inspection: The Engineer may delegate inspection and testing of

materials or Plant to an independent inspector. Any such delegation shall be effected in accordance with Sub-Clause and for this purpose such independent inspector shall beconsidered as an assistant of the Engineer. Notice of such appointment (not being less than 14 days) shall be given by the Engineer to the Contractor.

11. Examination of Work before Covering up: No part of the Works shall be

covered up or put out of view without the approval of the Engineer and the Contractor shall afford full opportunity for the Engineer to examine and measure any such part of the Works which is about to be covered up or put out of view and to examine foundations before any part of the Works is placed thereon. The Contractor shall give notice to the Engineer whenever any such part of the Works



or foundations is or are ready or about to be ready for examination and the Engineer shall, without unreasonable delay, unless he considers it unnecessary and advises the Contractor accordingly, attend for the purpose of examining and measuring such part of the Works or of examining such foundations.

12. Uncovering and Making Openings: The Contractor shall uncover any part of the

Works or make openings in or through the same as the Engineer may from time to time instruct and shall reinstate and make good such part. If any such part has been covered up or put out of view after compliance with the requirement of Sub-Clause and is found to be executed in accordance with the Contract, the Engineer shall, after due consultation with the Employer and the Contractor, determine the amount of the Contractor’s costs in respect of such of uncovering, making openings in or through, reinstating and making good the same, which shall be added to the Contract Price, and shall notify the Contractor accordingly, with a copy to the Employer. In any other case all costs shall be borne by the Contractor.

13. Removal of Improper Work, Materials or Plant: The Engineer shall have authority to issue instructions from time to time, for:

(a) the removal from the Site, within such time or times as may be specified in the

instruction, of any materials or Plant which, in the opinion of the Engineer, are not in accordance with the Contract,

(b) the substitution of proper and suitable materials or Plant, and (c) the removal and proper re-execution, notwithstanding any previous test thereof or

interim payment therefor, of any work which, in respect of (i) materials, Plant or workmanship, or (ii) design by the Contractor or for which he is responsible, is not, in the opinion of the

Engineer, in accordance with the Contract.



ANNEXURE – 1D

NOTICE OF FATAL ACCIDENT

(Contractor’s Employees)

Date:

From

(Name and address of the Contractor)

To

The Engineer (Superintendent/ Manager) Dear Sir,

We regret to inform you that _______________________________________, an

employee of

M/s __________________________________met with a fatal accident at _______ AM/

PM,

dated ____________ at _______________________. At the time of accident, he was

engaged

in_____________________________________________________

____________________________________________________________________.

(Description of work) Yours faithfully,

Signature of the Contractor /



PART – C FIRE FIGHTING WORKS



SECTION-I TECHNICAL SPECIFICATIONS FOR FIRE FIGHTING

1.0 INTRODUCTION AND SCHEME 1.1 INTRODUCTION:

The Buildings under construction in the subject work are multi storied buildings consisting of Ground Floor + Three Upper Floors and Terrace. Floor to floor height is 3.0m and height upto Terrace from Ground Floor is 30 m (approx.). The Pump House and Under Ground Tank have been provided near the STP since the water for firefighting is been taken from the recycled water available from STP. Terrace tank has been provided over the Stair Cabin (Mumty) at the terrace of the building. The work is to be executed at Village Dhanpunji, District- Jagdalpur, Chhattisgarh (State). All equipments will be required to operate under climatic conditions of the above mentioned location. The tenderers are advised to visit the site for familiarization of site conditions and collection of any information considered vital for submission of tender. The department will not take any responsibility for the same.

1.2 SCOPE OF WORK a) GENERAL:

The work shall be executed as per general specifications for electrical works Part-V (wet risers & sprinkler systems) 2006 as amended up to present date. These additional specifications/conditions are to be read in conjunction with these specifications. In case of variations, the decision of Engineer-in-charge is final & binding. Nothing extra shall be payable on account of any variations.

1.3 SCHEME

The proposed Residential Complex and Other Facilities under the category of Residential Building with G+3 and G+9 FLOOR ht. @- 30- 35 m and other buildings with G+1 HT @ 4 TO 7 m. National Building Code of India 2005 (NBC 2005) has been considered for the design of the firefighting system. It is proposed to provide Main Electric and Diesel fire pump in Pump House. Terrace pump will be installed above the OHWT at the terrace. Ring Main with 100mm dia M.S. Pipe will be provided around the building and yard Hydrants will be provided at suitable locations. There is 1 No. Downcomer Vertical shaft in all the buildings. Internal hydrants with First Aid Hose Reels will be provided at each floor from Ground floor to Terrace floors. Air vessels shall be provided at the terrace. The terrace tank will feed the Risers at the terrace.



b) It is proposed to provide following firefighting system for the above said building:

The work shall be carried out in the accordance with the drawings and design as would be issued to the Contractor by the Design Ownerduly signed and stamped by him. The Contractor shall not take cognizance of any drawings, designs, specifications etc. not bearing Design Ownersignature and stamp. Similarly the Contractor shall not take cognizance of instructions given by any other Authority except the instructions given by the Project Manager’s Representative in writing.

The work shall be executed and measured as per metric dimensions given in the Bill of Quantities, drawings etc.

The Contractor shall acquaint himself fully with the partial provisions for supports that may be available in the structure and utilize them to the extent possible. In any case the Contractor shall provide all the supports regardless of provisions that they have been already made. Nothing extra shall be payable for situations where insert plates (for supports) are not available or are not useful.

Shop coats of paint that may be damaged during shipment or erection shall be cleaned off with mineral spirits, wire brushed and spot primed over the affected areas, then coated with paint to match the finish over the adjoining shop painted surface.

The Contractor shall protect / handle the material carefully and if any damage occur while handling by the Contractor then the sole responsibility shall be of the Contractor. Such damages shall be rectified/recovered by the Contractor at no extra cost whatsoever.

The Contractor shall, within twenty one (21) days of receipt of the Notice of Award for the Project, where applicable, complete the submission of shop drawings to the Project Manager’s Representative for approval by the Design Consultants in order to conform to the contract schedule.

Measurements:

All measurements shall be taken in accordance with relevant IS codes, unless otherwise specified.

2.0 APPLICABLE CODES AND STANDARDS:

All equipment, supply, erection, testing and commissioning shall comply with the requirements of Indian Standards and code of practice given below as amended upto the date of submission of Tender. All equipment and material being supplied shall meet the requirements of BIS and other relevant standard and codes. MS Tube upto 150mm - IS:1239 MS Tubes above 150mm - IS:3589 Malleable Iron Fittings - IS:1239 - 1982 (Part-I&II)



Cast Iron Sluice Valves - IS: 780 - 1984 Check Valves - IS:5312 - 1975 InternalExternalFire Hydrant Valve IS:5290 - 1983 Rubberized Fabric Lined Hose - IS: 636 Couplings, Branch Pipe, Nozzles - IS: 903 First Aid Fire Hose (Rubber) - IS:5132 - 1969 First Air Hose Reel - IS: 884 - 1969

3.0 BASIC CONCEPT OF DESIGN

Type of the Building -- Residential Categories as per NBC -- Group A-4 (Apartment Houses) Max. Height of Building -- Less than 45m. No. of Floors -- Ground Floor +9floors. Building is classified as Apartment houses as per NBC with height less than 45. The firefighting arrangement shall be designed as per the requirement of local guidelines, NBC and NFPA. The entire firefighting installation shall be compliant with the most stringent codes / standard for the entire PREMISE to ensure the highest safety standard and uniformity of system. Further, before property is opened to work, the firefighting shall be fully operated and tested under simulated conditions to demonstrate compliance with the most stringent standards, codes and guidelines. Following functional system shall be provided; strictly in compliance with the listed reference standards:

a. Piping System

: Piping system confirming to IS: 1239, IS: 3589 (for pipe size > 150NB) & IS 10221 M.S /GI. Heavy Class for Hydrant and sprinkler system (Pipe material to be verify with Fire NOC)

b. Fire water static Storage

: Fire water static storage has been provided in accordance to NBC requirement.

c. Fire Pumping system

: Terrace pumps one working + One standby has been provided.

d. Hydrant system

: External & internal hydrant complete with hose reel.

e. Hand held fire Extinguishers

: Strategically placed at designated areas.



3.1 System Description

The firefighting system shall be provided as per National Building Code of India 2005 (Part IV), as per local Chief Fire Officer guidelines/approval.and other relevant I.S codes and it shall be consisting of as follows: :-

(a) Down Comer system with landing hydrant valves and fire hose cabinet.

Fire water storage

Fire water storage tank for Fire Protection System has been provided at under-ground level of 200 KL (100 KL x 2 nos tanks) capacity. In addition to this, as a mandatory application as mentioned in NBC-2005 guidelines, an additional static fire water tank of 10 KL capacity shall be provided at the high level terrace. Fire department connection shall also be provided on the external wall of the property near the main entrance. These shall comprise of 4 Nos. 63 mm dia male outlets with double landing valves capable of directly feeding the ring mains through non return valves or directly filling the static fire storage tanks. These shall be mounted in specially identified boxes. Fire pumping system The fire pumping system shall comprise of 2 pumps on terrace of each block

(a) Electric Driven Pump Capacity 450 LPM 35 Mt head (2 No.)

Electrical pump shall provide adequate flow for catering requirement of hydrant system.

4.0 QUALITY ASSURANCE AND QUALITY CONTROL:

The work shall conform to high standard of design and workmanship, shall be structurally sound and aesthetically pleasing. Quality standards prescribed shall form the backbone for the quality assurance and quality control system.

At the site, the Contractor shall arrange the materials and their stacking/ storage

in appropriate manner to ensure the quality. Contractor shall provide equipment and manpower to test continuously the quality of material, assemblies etc. as directed by the Project Manager’s Representative. The test shall be conducted continuously and the result of tests maintained. In addition the Contractor shall keep appropriate tools and equipment for checking alignments, levels, slopes and evenness of surface.

The Project Manager’s Representative shall be free to carry out such tests as may

be decided by him at this sole direction, from time to time, in addition to those specified in this Document. The Contractor shall provide the samples and labour



for collecting the samples. Nothing extra shall be payable to the Contractor for samples or for the collection of the samples.

The test shall be conducted at the site laboratory that may be established by

Project Manager’s Representative or at any other Standard Laboratory selected by Project Manager’s Representative. Contractor shall keep the necessary testing equipment such as hydraulic testing machine, smoke testing machine, gauges and other necessary equipment required.

The Project Manager’s Representative shall transport the samples to the

laboratory. Testing charges shall be borne by the Project Manager’s Representative. Testing may be witnessed by the Contractor or his Authorised Representative.

Whether witnessed by the Contractor or not, the test results shall be binding on the Contractor.

Prior to shipment, complete unit shall be tested under actual load conditions for

performance and proper functioning of component parts. 4.0 5.0 SCOPE

The scope of this section consists of but is not necessarily limited to supply, installation, testing and commissioning of the fire protection system. The philosophy of the system is as follows : a. The Fire Suppression System shall comprise the Fire Hydrants System and

Hand Appliances. . b. The starting and stopping of the pump shall be automatic based on the

pressure switches at preset low and high pressure. c. The electric motor driven Hydrant Pump starts automatically at a preset

pressure by means of a pressure switch. d. Contractor shall ensure Hydro Testing for the complete system. e. The Contractor shall obtain the necessary approval of the drawings and the

schemes from the local authority as called for.. f. The contractor shall design and after approval of Project Manager display

near each staircase landing at floor levels, a glass covered framed floor plan clearly showing the locations of all landing valves, hose reels, hand appliances, as well as the DO’s and DON’T’s for the personnel and the exit direction in case of an emergency. The dimensions of the floor plan, its scale, lettering size, colour scheme etc shall be as directed by the Project Manager.



6.0 PIPE WORK 6.1. General Requirements

All materials shall be of the best quality conforming to the specifications and subject to the approval of the Consultants. Pipes shall be fixed in a manner as to provide easy accessibility for repair and maintenance and shall not cause obstruction in shafts, passages etc. Pipes shall be securely fixed to walls and ceilings by suitable clamps and supports (galvanised after fabrication ) at intervals specified. Only approved type of anchor fasteners shall be used for RCC slabs and walls / floors etc. Valves and other appurtenances shall be so located that they are easily accessible for operations, repairs and maintenance. Pipes and fittings shall be fixed truly vertical, horizontal or in slopes as required in a neat workman like manner. Pipe accessories such as gauges, meters, control devices, etc. shall have the same working pressure rating as the associated pipe work. All pipe work shall be free from burrs, rust and scale and shall be cleaned before installation. All personnel engaged on welding operations must possess a certificate of competence issued by an acceptable / recognized authority.

6.2 Piping

Pipes of following types are to be used: Mild steel black pipes as per IS:1239 heavy grade(for pipes of sizes 150 mm N.B. and below) suitably lagged on the outside to prevent soil corrosion. M.S. pipes buried below ground shall also be suitably be lagged with 2 layers of PYPKOTE/COTAK polythene sheet over 2 coats of bitumen. Steel pipelines upto 150 mm dia shall be as per IS: 1239, Part-II (heavy grade) while pipelines above 150 mm dia shall be as per I.S.:3589. All pipe clamps and supports shall be fabricated from MS steel sections and shall be factory galvanized before use at site. Welding of galvanised clamps and supports shall not be permitted. Pipes shall be hung by means of expandable anchor fastener of approved make and design. The hangers and clamps shall be fastened by means of galvanised nuts and bolts. The size/diameter of the anchor fastener and the clamps shall be suitable to carry the weight of water filled pipe and dead load normally encountered.



Hangers and supports shall be thoroughly galvanised after fabrication. The selection and design of the hanger & support shall be capable of carrying the sum of all concurrently acting loads. They shall be designed to provide the required supporting effects and allow pipeline movements as necessary. All guides, anchor braces, dampener, expansion joint and structural steel to be attached to the building/structure trenches etc. shall be provided. Hangers and components for all piping shall be approved by the Consultants. The piping system shall be tested for leakages at 2 times the operating pressure or 1.5 time shut-off pressure, which ever is highest including testing for water hammer effects. Flanged joints shall be used for connections for vessels, equipment, flanged valves and also on two straight lengths of pipelines of strategic points to facilitate erection and subsequent maintenance work. For pipes underground installation the pipes shall be buried at least one meter below ground level and shall have 230 mm x 230 mm masonry or concrete supports at least 300 mm high at 3m intervals. Masonry work to have plain cement concrete foundation (1 cement: 4 coarse sand : 8 stone aggregate) of size 380x380x75 thick resting on firm soil. Mains below ground level shall be supported at regular intervals not exceeding 3.0 metres and shall be laid at least 2.0 metre away from the building.

6.3 Piping Installation & Support Tender drawings indicate schematically the size and location of pipes. The Contractor, on the award of the work, shall prepare detailed working drawings, showing the cross-sections, longitudinal sections, details of fittings, locations of isolating and control valves, drain and air valves, and all pipe supports. He must keep in view the specific openings in buildings and other structure through which pipes are designed to pass. Piping shall be properly supported on , or suspended from , on stands, clamps, hangers as specified and as required. The Contractor shall adequately design all the brackets, saddles, anchor, clamps and hangers, and be responsible for their structural stability. Pipe work and fittings shall be supported by hangers or brackets so as to permit free expansion and contraction. Risers shall be supported at each floor with Galvanised steel clamps. To permit free movement of common piping support shall be from a common hanger bar fabricated from Galvanised steel sections. Pipe hangers shall be provided at the following maximum spacings: Pipe Dia Hanger Rod Dia Spacing between Supports (mm) (mm) (m)



Up to 25 6 2 32 to 50 6 2.5 65 to 80 8 2.5 80 to 100 10 2.5 125 to 150 10 3.0 200 to 300 12 3.5 The end of the steel rods shall be threaded and not welded to the threaded bolt. All pipe work shall be carried out in a proper workman like manner, causing minimum disturbance to the existing services, buildings, roads and structure. The entire piping work shall be organized in consultation with other agencies work, so that area can be carried out in one stretch. Cut-outs in the floor slab for installing the various pipes area are indicated in the drawings. Contractor shall carefully examine the cut-outs provided and clearly point out wherever the cut-outs shown in the drawings, do not meet with the requirements. Pipe sleeves, larger diameter than pipes, shall be provided wherever pipes pass through walls and slab and annular space filled with fibreglass and finished with retainer rings. The contractor shall make sure that the clamps, brackets, saddles and hangers provided for pipe supports are adequate or as specified / approved by Consultants. Piping layout shall take due care for expansion and contraction in pipes and include expansion joints where required. All pipes shall be accurately cut to the required sizes in accordance with relevant BIS codes and burrs removed before laying. Open ends of the piping shall be closed as the pipe is installed to avoid entrance of foreign matter. Where reducers are to be made in horizontal runs, eccentric reduces shall be used for the piping to drain freely. In other locations, concentric reduces may be used. Automatic air valves shall be provided at all high points in the piping system for venting. All valves shall be of 15mm pipe size and shall be associated with an equal size gate valves. All pipes shall be pitched towards drain points. Pressure gauges shall be provided as shown on the approved drawings. Care shall be taken to protect pressure gauges during pressure testing.

6.4 Pipe Fittings

Pipe fittings mean tees, elbows, couplings, unions, flanges, reducers etc and all such connecting devices that are needed to complete the piping work in its totality. Forged steel screwed type fitting shall be used for pipes of 50 mm dia & below. Fabricated fittings shall not be permitted for pipes diameters 50mm and below.



Fabricated fittings used on pipe size 65 mm & above shall be fabricated, welded in workshops. They shall be inspected by Project Manager before dispatch from the workshop. The welding procedures of the workshop should have been approved by the rules for sprinkler system and applicable to hydrant and sprinkler system. For “T” connection, pipes shall be drilled and reamed. Cutting by gas or electrical welding shall not be permitted.

6.5 Procedure for Pypkote / Cotak Application a. Surface Preparation - The pipe surface shall be cleaned by a wire brush. b. Application of Primer - Pypkote / Coatek primer is to be applied on pipes

immediately after cleaning. This is to prevent any further accumulation of rust on the pipe. This is a cold applied primer and is applied by brush.

c. Application of Pypkote / Coatek 4 mm Tape - After the primer is applied on

the pipe, it is allowed to dry for about 30 min. till it becomes touch dry. Before adhering the tape to the pipe, it is advisable to gently heat the primer coated pipe by a run of LPG torch. Remove the bottom polyethylene from the tape & then heat bottom surface of the tape by LPG torch or any heat source & start wrapping the tape to the pipe by heating the primer coated pipe & by removing the bottom polyethylene from the tape before wrapping better adhesion between the tape & pipe is obtained. Overlaps are maintained with a minimum of 12.5 mm.

d. Tape coating of weld joints - The tape is applied over the weld joints after

the necessary welding & testing methods of the joints is completed. The procedure for application of tape shall be the same as bare pipe procedure. Overlaps on each side of the weld joints shall be 50 mm.e. A final coat of White wash with water based cement paint is done immediately over the entire coated pipe.

6.7 Jointing

Welded Joints All pipes above 65mm dia and above shall be jointed with welded joints. Joints between MS pipes and fittings shall be made with the pipes and fittings having “V” groove and welded with electrical resistance welding in an approved manner. But welding without “V” groove shall not be permitted. Screwed Joints All joints in the pipe line with screwed fittings shall be seal welded after testing and the weld plus the adjoining portion shall be given two coats of zinc rich primer.

Flanged joints (65 mm dia and above)



Flanged joints with flanges conforming to IS: 6392 shall be provided on a. Straight runs at intervals not exceeding 25-30m on pipe lines of 50 mm dia

and above and as directed by the Project Manager. b. For jointing all types of valves, appurtenances, pumps, connections with

other type of pipes, to water tanks and other places necessary and as required for good engineering practice and as shown/noted on the drawings.

c. Flanges shall be with GI bolts and nuts and 3mm insertion gasket of natural

rubber conformingcto IS: 11149. Unions (upto 50 mm dia) Approved type of dismountable unions shall be provided on pipe lines of 50 mm dia and smaller dia, in locations similar to those specified for flanges.

7. AIR VESSEL

The air vessel shall be provided to compensate for slight loss of pressure in the system and to provide an air cushion for counter-acting pressure, surges, whenever the pumping sets come into operation. Air vessel shall conform to IS:3844. It shall be normally half full of water, when the system is in normal operation. Air vessel shall be fabricated with 8 mm thick M.S. plate with dished ends and suitable supporting legs. It shall be provided with one 100 mm dia flanged connection from pump, one 25 mm drain with valve, one water level gauge and 25 mm sockets for pressure switches. The air vessel shall be tested to pressure for 12 hours at 2 times the operating pressure or 1.5 times the shut-off.

8. FIRE BRIGADE CONNECTION The storage tank shall be provided with a 150 mm fire brigade pumping connection to discharge at least 2275 litres / minute into it. This connection shall not be taken directly into the side of the storage tank, but arranged to discharge not less than 150 mm above the top edge of the tank such that the water flow can be seen. The connection shall be fitted with stop valve in a position approved by the Project Manager. An overflow connection discharging to a drain point shall be provided from the storage tank. The fire brigade connection shall be fitted with four numbers of 63mm instantaneous inlets in a glass fronted wall box at a suitable position at street level, so located as to make the inlets accessible from the outside of the building. The size of the wall box shall be adequate to allow hose to be connected to the inlets, even if the door cannot be opened and the glass has to be broken. Each box shall have fall of 25mm towards the front at its base and shall be gl`assed with wired glass with ”FIRE BRIGADE INLET” painted on the inner face of the glass in 50 mm size block letter. Each such box shall be provided with a steel hammer with chain for breaking the glass. In addition to the emergency fire



brigade connection to the storage tank, a 150mm common connection shall be taken from the four 63mm instantaneous inlets direct to hydrant main so that the fire brigade may pump to the hydrants in the even of the hydrant pumps being out of commission. The connection shall be fitted with a sluice valve and reflux valve. Location of these valve shall be as per the approval of the Project Manager.

9. SYSTEM DRAINAGE

The system shall be provided with suitable drainage arrangement with drain valves complete with all accessories.

10. VALVES 10.1 Butterfly Valve

The butterfly valve shall be suitable for waterworks and rated for PN 1.6. The body shall be of cast iron in circular shape and of high strength to take the water pressure. The disc shall be heavy duty cast iron with anti corrosive epoxy or nickel coating. The valve seat shall be of high grade elastomer or nitrile rubber. The valve is closed position shall have complete contact between the seat and the disc throughout the perimeter. The elastomer rubber shall have a long life and shall not give away on continuous applied water pressure . The shaft shall be EN 8 grade carbon steel.The valve shall be fitted between two flanges on either side of pipe flanges. The valve edge rubber shall be projected outside such that they are wedged within the pipe flanges to prevent leakages. Valve above 150mm dia shall be provided with Gear assembly as specified in BOQ. Codes for different material used in valves shall be as under: a. General Design and Manufacture:EN593/API609

b. Valve face to face ISO 5752

c. Top flange drilling:ISO 5211

d. Valve Inspection & testing:API 598

e. Flange Standard Confirmity-ANSI 150/ANSI125/BS 10TAB D&E IS6392 NP 06/1.0/1.6

10.2 Ball Valve

The ball valve shall be made forged brass and suitable for test pressure of pipe line. The valve shall be internally threaded to receive pipe connections. The ball shall be made from brass and machined to perfect round shape and subsequently chrome plated. The seat of the valve body-bonnet gasket and gland packing shall be of Teflon. The handle shall be provided with PVC jacket. The handle shall also indicate the direction of ‘open’ and ‘closed’ situations. The gap between the ball and the teflon packing shall be sealed to prevent water seeping. The handle shall also be provided with a lug to keep the movement of the ball valve within 90°. The lever shall be operated smoothly and without application of any unnecessary force.



10.3 Non-Return Valve All Non-Return valves used in pump’s delivery shall be suitable for water works cast iron double flanged with cast iron body and gunmetal internal parts conforming to IS:5312. MATERIAL OF CONSTRUCTION Body Disc Cover : Cast Iron Hinge Pin : SS AISI 316 Disc Face : SS AISI 316 End connection:BS 10 Table D, E & F

10.4 Wafer Type Check Valve

All check valve used before flow switches shall be spring loaded dual plate check valves with following specifications: Body:CI, Plate:SS304, Stop pin:SS316, Hinge Pin:SS316, Spring:SS316, Seat:EPDM,

10.5 Suction Strainers Flanged 'Y' strainers are suitable for water. The design is compact and full flow, with large filtration area for low pressure drop and more debris collection. It is provided with drain Ball valve for frequent blow off. Element is strengthened for rigidity and long life and fitted in machined seats. Flanges provided are as per ANSI B16.5 150#, DIN10 suitable for working pressure or upto 250 PSI (16 KG/cm2), Hydraulically tested to 30Kg/cm2.

10.6 Foot Valve Used in suction side of pump to avoid flow reversal from pump to UG tank in case on negative suction. Manufacturing Standard : IS 4038. Pressure Rating : PN 2 MATERIAL OF CONSTRUCTION Housing, Seat, Strainer, Door, Strainer : Cast Iron IS:210, Gr. FG 200 Door Plate : Cast Iron IS:210, Gr. FG 200 / MS IS:2062, Gr.Fe 410 WA Hinge Pin : SS ASTM A 276, Type 410 Door Face : Natural Rubber with reinforcement of cotton canvas

End Flange:IS:1538, Table 4 & 6 11. PRESSURE SWITCH



The pressure switches shall be employed for starting and shutting down operation of pumps automatically, dictated by line pressure. The Pressure Switch shall be diaphragm type. The housing shall be die cast aluminium, with SS 316 movement, pressure element and socket. The set pressure shall be adjustable. The Switch shall be suitable for consistent and repeated operations without change in values. It shall be provided with IP:55 water and environment protection.

12. PRESSURE GAUGE

Pressure gauge shall be provided near all individual connections of the hydrant system with isolation valves and near each flow switch assembly of the sprinkler system. Pressure gauge shall be 100 mm dia gunmetal bourdon type with gunmetal isolation ball valve, tapping and connecting pipe and nipple. The gauge shall be installed at appropriate height for easy readability.

13. PAINTING All Hydrant and Sprinkler pipes shall be painted with post office red colour paint. All M S pipes shall first be cleaned thoroughly before application of primer coat. After application of primer coat two coats of enamel paint shall be applied. Each coat shall be given minimum 24 hours drying time. No thinners shall be used. Wherever required all pipe headers shall be worded indicating the direction of the pipe and its purpose such as "TO RISER NO.1" etc. Painting shall be expertly applied, the paint shall not over run on surfaces not requiring painting such as walls, surfaces etc. Nuts and bolts shall be painted black, while valves shall be painted blue.

14. EXCAVATION Excavation for pipe lines shall be in open trenches to levels and grades shown on the drawings or as required at site. Pipe lines shall be burried with a minimum cover of 1 meter or as shown on drawings. Wherever required Contractor shall support all trenches or adjoining structures with adequate timber supports, shoring and strutting. On completion of testing in the presence of the Project Manager and pipe protection, trenches shall be backfilled in 150 mm layers and consolidated. Contractor shall dispose off all surplus earth as directed by the Project Manager.

15. ANCHOR / THRUST BLOCK

Contractor shall provide suitably designed anchor blocks in cement concrete/steel support to cater to the excess thrust due to work hammer and high pressure Thrust blocks shall be provided at all bends, tees and such other location as determined by the Project Manager.



Exact location, design, size and mix of the concrete blocks/steel support shall be as shown on the drawings or as directed by the Project Manager prior to execution of work.

16. FIRE HYDRANTS External Hydrants

Contractor shall provide external hydrants. The hydrants shall be controlled by a cast iron wheel. Hydrants shall have instantaneous type 63mm dia outlets. The hydrants shall be single outlet conforming to IS:5290 with bend and riser or required height to bring the hydrant to correct level above ground. Contractor shall provide for each external fire hydrant two numbers of 63mm dia. 15m long controlled percolation hose pipe with SS male and female instantaneous type couplings machine wound with copper wire (hose to IS:636 type certification), SS branch pipe with nozzle to IS:903. This shall be measured and paid for separately. Each hose cabinet shall be conspicuously painted with the letters “FIRE HOSE”. Internal Hydrants Contractor shall provide on each landing and other locations as shown on the drawings double headed SS landing valve with 100 mm dia inlet as per IS:5290, with shut off valves having cast iron wheels as shown on the drawings. Landing valve shall have flanged inlet and instantaneous type outlets as shown on the drawings. Instantaneous outlets for fire hydrants shall be standard pattern and suitable for fire hoses. Contractor shall provide for each internal fire hydrant station two numbers of 63 mm dia. 15 m long rubberized fabric lined hose pipes with SS male and female instantaneous type coupling machine would with copper wire (hose to IS:636 type A and couplings to IS:903 with IS certification), fire hose reel, SS branch pipe with nozzle to IS:903. This shall be measured and paid for separately. Contractor shall provide standard fire hose reels of 20mm dia high pressure rubber hose 36 m long with gunmetal nozzle, all mounted on a circular hose reel of heavy duty mild steel construction having cast iron brackets. Hose reel shall be connected directly to the wet riser with an isolating valve. Hose reel shall conform to IS:884 and shall be mounted vertically. Each internal hydrant hose cabinet shall be provided with a drain in the bottom plate. The drain point shall be lead away to the nearest general drain.



Each internal hydrant hose cabinet containing items as above shall also be provided with a nozzle spanner and a Fireman’s Axe. The cabinet shall be recessed in the wall as directed. This shall be measured and paid for separately. Each hose cabinet shall be conspicuously painted with the letters “FIRE HOSE”.

17. Hose Reel

Hose reel shall conform to IS : 884, heavy duty, 20 mm dia length shall be 36 metre long fitted with SS chromium plated nozzle, mild steel pressed reel drum which can swing upto 170 degree with wall brackets of cast iron finished with red and black enamel complete.

18 Fire Hose

All hose pipes shall be of 63 mm diameter RRL as required, conforming to IS : 636. The hose shall be provided with SS delivery coupling. The hose shall be capable of withstanding a bursting pressure of 35.7 Kg/Sq.cm without undue leakage or sweating. Hose shall be provided with instantaneous spring-lock, type couplings.

19. Branch Pipe, Nozzle

Branch pipes shall be of SS with loaded tin bronze ring at the discharge and to receive the nozzle and provided at the other with a leaded tin bronze ring to fit into the instantaneous coupling. Nozzle shall be of spray type of diameter of not less than 16 mm and not more than 25 mm. Nozzle shall be of loaded tin bronze branch pipe and nozzle shall be of instantaneous pattern conforming to Indian Standard -

20. Hose Cabinet

Hose cabinet shall be provided for all internal and external fire hydrants. External Hose cabinets shall be fabricated from 14 gauge MS powder coated sheet of fully welded construction with hinged double front door partially glazed (3 mm glass panel) with locking arrangement, stove enamelled fire red paint (shade No. 536 of IS:5) with “FIRE HOSE” written on it prominently (The word `FIRE HOSE’ shall be in letters of at least 35mm in height. The words shall be painted white on red back ground). Cabinet surfaces in contact with the walls shall not be powder coated but instead given two coats of anti-corrosive bitumastic paint.

Internal Hose Cabinet Hose cabinet shall be of glass fronted with hinged door & lock. The cabinet shall be made of Aluminium hollow box section, powder caoted to shade No. 536 of IS:5. The hose cabinet shall be of size to accommodate the following and size is as per BOQ: i. Landing Valves (Single headed) ii. Hose pipe



iii. Hose reel (30 mtr.) iv. Branch pipes, nozzles (1 sets) v. Fire man's axe and hand appliances External Hose Cabinet The hose cabinet shall be of size to accommodate the following: i. Single/Double headed yard hydrant valve ii. Hose pipe (2 length of 15 m) iii. Branch pipes, nozzles (1 sets) iv. Fire man's axe

21. HAND HELD FIRE EXTINGUISHERS Scope

Work under this section shall consist of furnishing all labour, materials, appliances and equipment necessary and required to install fire extinguishing hand appliances as per relevant specification of various authorities. Without restricting to the generality of the foregoing, the work shall consists of the following: Installation of fully charged and tested fire extinguishing hand appliances of A B C powder type as required and specified in the drawings and schedule of rates.

General Requirements

Hand appliances shall be installed in easily accessible locations with the brackets fixed to the wall by suitable anchor fasteners. Each appliance shall be provided with an inspection card indicating the date of inspection, testing, change of charge and other relevant data. All appliances shall be fixed in a true workmanlike manner truly vertical and at correct locations. Distribution / installation of fire extinguisher to be in accordance to IS:2190.

Measurement Fire extinguishers shall be counted in numbers and include installation of all necessary items required as given in the specifications. ABC Type Dry Powder Extinguisher The Extinguisher shall be filled with ABC grade 40, Mono Ammonium Phosphate 40% from any approved manufacturer.



The capacity of the extinguisher when filled with Dry Chemical Powder (First filling) as per IS 15683-2006, shall be 5 Kg +/-2% or 10 Kg +/- 3%. The distribution of fire extinguishers to be as per IS 2190 – 1992. It shall be operated upright, with a squeeze grip valve to control discharge. The plunger neck shall have a safety clip, fitted with a pin, to prevent accidental discharge. It shall be pressurised with Dry Nitrogen, as expellant. The Nitrogen to be charged at a pressure of 15 Kg/cm2 Body shall be of mild steel conforming to relevant IS Standards. The neck ring shall be also mild steel and welded to the body. The discharge valve body, shall be forged brass or leaded bronze, while the spindle, spring and siphon tube shall be of brass. The nozzle shall be of brass, while the hose shall be braided nylon. The body shall be cylindrical in shape, with the dish and dome welded to it. Sufficient space for Nitrogen gas shall be provided inside the body, above the powder filling. The Neck Ring shall be externally threaded - the threading portion being 1.6 cm. The filler opening in the neck ring shall not less than 50 mm. Discharge nozzle shall be screwed to the hose. The design of the nozzle shall meet the performance requirement, so as to discharge at least 85% of contents upto a throw of 4 mtrs, continuously, at least for 15 seconds. The hose, forming part of discharge nozzle, shall be 500 mm long, with 10 mm dia internally for 5 Kg capacity and 12 mm for 10 Kg capacity. It shall have a pressure gauge fitted to the valve assembly or the cylinder to indicate pressure available inside. The extinguisher shall be treated with anti-corrosive paint, and it shall be labelled with words ABC 2.5 cm long, within a triangle of 5 cm on each face. The extinguisher body and valve assembly shall withstand internal pressure of 30 Kg/cm2 for a minimum period of 2 minutes. The pressure gauge shall be imported and suited for the purpose. Water Type Extinguisher (Gas Pressure Type) The Extinguishing medium shall be primarily water stored under normal pressure, the discharge being affected by release of Carbon Dioxide Gas from a 120 gms cylinder. The capacity of Extinguisher, when filled upto the indicated level, shall be 9 ltr +/- 5%. The skin thickness of the Cylinder shall be minimum 4.0 mm, fabricated from Mild Steel sheet, welded as required, with dish and dome, being of same thickness, and of size not exceeding the diameter of body. The diameter of body to be not less than 150 mm and not exceeding 200 mm. The neck shall be externally threaded upto a minimum depth of 16 mm, and leaded tin bronze. The cap shall be of leaded tin bronze, and screwed on the body upto a minimum of 1.6 cm depth, with parallel screw thread to match the neck ring. The siphon tube to be of brass or G.I. and the strainer of Brass. The cartridge holder, knob, discharge fittings and plunger to be of Brass/Leaded tin bronze, and plunger of stainless steel, spring of stainless steel. The cap to have handle fixed to it. The discharge hose shall be braided nylon, of 10 mm dia and 600 mm long, with a nozzle of brass fitted at end. The extinguisher shall be treated for anti-corrosion internally and externally, and externally painted with Fire Red paint. The paint shall be stove enamelled/ powder



coated. The cartridge shall be as per IS, and have 60 gm net carbon dioxide gas for expelling. The extinguisher, body and cap shall be treated to an internal hydraulic pressure of 25 Kg/cm2. It shall have external marking with letter A, of 2.5 cm height, in block letters within a triangle of 5 cm each side. The extinguisher shall be upright in operation, with the body placed on ground and discharge tube with nozzle held in one hand to give a throw of not less than 6 mtr, and continue so for atleast 60 secs. The extinguisher body shall be clearly marked with ISI stamp (IS 15683-2006). Carbon Dioxide Extinguisher The Carbon Dioxide Extinguisher shall be as per IS: 15683:2006 The body shall be constructed of seamless tube conforming to IS:7285 and having a convex dome and flat base. Its dia shall be maximum 140 mm, and the overall height shall not exceed 720 mm. The discharge mechanism shall be through a control valve conforming to IS:3224. The internal siphon tube shall be of copper aluminium conforming to relevant specifications. Hose Pipe shall be high pressure braided Rubber hose with a minimum burst pressure of 140 Kg/cm2 and shall be approximately 1.0 meter in length having internal dia of 10 mm. The discharge horn shall be of high quality unbreakable plastic with gradually expanding shape, to convert liquid carbon dioxide into gas form. The hand grip of Discharge horn shall be insulated with Rubber of appropriate thickness. The gas shall be conforming to IS:307 and shall be stored at about 85 Kg/cm2. The expansion ratio between stored liquid carbon dioxide to expanded gas shall be 1:9 times and the total discharge time (effective) shall be minimum 10 secs and maximum 25 secs. The extinguisher shall fulfill the following test pressures: Cylinder: 236 Kg/cm2 Control Valve: 125 Kg/cm2 Burst Pressure of Hose: 140 Kg/cm2 minimum It shall be an Upright type. The cylinder, including the control valve and high pressure Discharge Hose must comply with relevant Statutory Regulations, and be approved by Chief Controller of Explosives,Nagpur and also bear IS marking. The Extinguisher including components shall be IS marked. Mechanical Foam Type Extinguisher The capacity of Extinguisher, when filled upto the indicated level, shall be 9 ltr +/- 5%. The skin thickness of the Cylinder shall be minimum 4.0 mm, fabricated from Mild Steel sheet, welded as required, with dish and dome, being of same thickness, and of size not exceeding the diameter of body. The diameter of body to be not less than 150 mm and not exceeding 200 mm. The neck shall be externally threaded upto a minimum depth of 16 mm, and leaded tin bronze. The cap shall be of leaded tin bronze, and screwed on the body upto a minimum of 1.6 cm depth, with parallel screw thread to match the neck ring. The siphon tube to be of brass or G.I. and the strainer of Brass. The cartridge holder, knob, discharge



fittings and plunger to be of Brass/Leaded tin bronze, and plunger of stainless steel, spring of stainless steel. The cap to have handle fixed to it. The discharge hose shall be braided nylon, of 10 mm dia and 600 mm long, with a nozzle of brass fitted at end. The extinguisher shall be treated for anti-corrosion internally and externally, and externally painted with Fire Red paint. The paint shall be stove enamelled/powder coated. The extinguisher, body and cap shall be treated to an internal hydraulic pressure of 25 Kg/cm2. It shall have external marking with letter C, of 2.5 cm height, in block letters within a triangle of 5 cm each side. The extinguisher shall be upright in operation, with the body placed on ground and discharge tube with nozzle held in one hand to give a throw of not less than 6 mtr, and continue so for atleast 60 secs. The extinguisher body shall be clearly marked with ISI stamp (IS 15683-2006).

22. FIRE PUMPS AND ALLIED EQUIPMENTS

Scope Work under this section shall consist of furnishing all labour, materials, equipment and appliances necessary and required to completely install electrically operated and diesel driven pumps and as required by drawings and specified hereinafter or given in the schedule of rates. a. Electrically operated pumps with motors, common base plates, coupling,

coupling guard and accessories.

b. Automatic starting system with all accessories, wiring and connections and pressure switches.

c. Motor control centre.

d. Annunciation system with all accessories wiring and connections.

e. Pressure gauges with isolation valves and piping, bleed and block valves.

f. Suction strainers and accessories.

g. Vibration eliminator pads and foundation bolts.

h. Leak-off drain shall be led to the nearest floor drain. General Requirements Pumps shall be installed true to levels on suitable concrete foundations. Base plate shall be firmly fixed by properly grouted foundation bolts. Pumps and motors shall be truly aligned by suitably instruments. Record of such alignment shall be furnished to the Project Manager. All pump connections shall be standard flanged type with number of bolts as per relevant standard requirement for the working pressure. Companion flanges shall



be provided with the pumps Manufacturers’ instructions regarding installation, connections and commissioning shall be strictly followed. Contractor shall provide necessary test certificates, type test certificates, performance curves and NPSH curves of the pumps from the manufacturer when called for. The contractor shall provide facilities to the Project Manager & Ownerfor inspection of equipment during manufacturing and also to witness various tests at the manufacturer’s works without any cost to the Project Manager or Consultant. Seismic isolation and clamping for each pump and flexible connection on the suction as well as the discharge side shall be provided. The contractor shall submit with this tender a list of recommended spare parts for three years of normal operation and quote the prices for the same as a separate submittal / annexure.

Electric Fire Pump

The electric fire pump shall be suitable for automatic operation complete with necessary electric motor and automatic starting gear, suitable for operation on 415 volts, 3 phase, 50 Hz. A.C. system. Both the motor and the pump shall be factory assembled on a common base plate, fabricated M.S. channel type or cast iron type. Drive The pump shall be direct driven by means of a flexible coupling. Coupling guard shall also be provided. Fire Pump The fire pump shall be horizontally mounted multistage centrifugal type. It shall have a capacity to deliver 900/450 lpm as specified, and developing adequate head so as to ensure a minimum pressure of 3.5 Kg/Sq.cm at the highest and the farthest outlet. The pump shall be capable of giving a discharge of not less than 150 per cent of the rated discharge, at a head of not less than 65 per cent of the rated head. The shut off head shall be within 120 per cent of the rated head. The pump casing shall be of cast iron to grade FG 200 to IS: 210 and parts like impeller, shaft sleeve, wearing ring etc. shall be of non-corrosive metal like bronze/brass/gun metal. The shaft shall be of stainless steel. Provision of mechanical seal shall also be made. Bearings of the pump shall be effectively sealed to prevent loss of lubricant or entry of dust or water. The pump shall be provided with a plate indicating the suction lift, delivery head, discharge, speed and number of stages. The pump casing shall be designed to withstand 1.5 times the working pressure.



Motor The motor shall be squirrel cage A.C. induction type suitable for operation on 415 volts 3 phase 50 Hz. system. The motor shall be totally enclosed fan cooled type conforming to protection clause IP 55. The class of insulation shall be F. The synchronous speed shall be 1500 RPM as specified. The motor shall be rated for continuous duty and shall have a horse power rating necessary to drive the pump at 150 per cent of its rated discharge with at least 65 per cent rated head. The motor shall conform to I.S.325-1978. Motor Starter The motor starter shall be as per detail in MCC. The unit shall include suitable current transformer and ammeter of suitable range on one line to indicate the current. The starter shall not incorporate under voltage, no voltage trip overload or SPP. The starter assembly shall be suitably integrated in the power and control panel for the wet riser system & sprinkler system.

23. ELECTRICAL INSTALLATION

SCOPE The scope of this section comprises of fabrication, supply, erection, testing and commissioning of Motor Control Centre (MCC), wiring and earthing of firefighting panel equipment, components and accessories. GENERAL Work shall be carried out in accordance with the accompanying specifications and shall comply with the latest relevant Indian Standards and Electricity Rules and Regulations. All motor control centres shall be CPRI approved and shall be suitable for operation on 3 phase/single phase 415/230 volts, 50 cycles power supply system.

CONSTRUCTIONAL FEATURES The Motor Control Centre (MCC) electrical panels shall be sheet steel cabinet for indoor installation, dead front, floor mounting type and shall be 3b construction. The control panel shall be totally enclosed, completely dust and vermin proof and shall be with hinged doors with Neoprene gasket. Control panel shall be suitable for the climatic conditions as specified in Specifications. Steel sheets used in the construction of Control panel shall be 2 mm thick and shall be folded and braced as necessary to provide a rigid support for all components. Joints of any kind in sheet metal shall be seam welded, all welding, slag shall be rounded off and welding pits wiped smooth with plumber metal. The general construction shall confirm to relevant BIS Codes.



All panels and covers shall be properly fitted and square with the frame, and holes in the panel correctly positioned. Fixing screws shall enter into holes tapped into an adequate thickness of metal or provided with wing nuts. Self threading screws shall not be used in the construction of Control panels. A base channel of 75 mm x 40 mm x 5 mm thick shall be provided at the bottom for floor mounted panels. Minimum clearance of 275 mm shall be provided between the floor of control panel and the lowest unit. The control panel shall be of adequate size with a provision of 25% spare space to accommodate possible future breakers. Breakers shall be arranged in multi-tier. Knockout holes of appropriate size and number shall be provided in the Motor Control Centre in conformity with the location of cable/conduit connections. Removable sheet steel plates shall be provided at the top to make holes for additional cable entry at site if required. Every cabinet shall be provided with Trifoliate or engraved metal name plates. All panels shall be provided with circuit diagram mounted on inside of door shutter protected with Hylam sheet. All live accessible connections shall be shrouded and shall be finger touch proof and minimum clearance between phase and earth shall be 20 mm and phase to phase shall be 25 mm. WIRING SYSTEM All L T power cabling between MCC and motors shall be carried out with 1100 volts grade PVC insulated, overall PVC sheathed aluminium conductor armoured cables, Cables shall be sized by applying proper derating factor. All control wiring shall be carried out by using PVC insulated copper conductor wires in conduits. Minimum size of control wiring shall be 1.5 sq mm. Minimum size of conductor for power wiring shall be 4 sq. mm 1100 volts grade PVC insulated copper conductor wires in conduit. CIRCUIT COMPARTMENT Each circuit breaker, contactor and relay shall be housed in a separate compartment and shall have steel sheets on top and bottom of compartment. Sheet steel hinged lockable door shall be duly interlocked with the breaker in the “ON” position. Safety interlocks shall be provided to prevent the breaker from being drawn-out when the breaker is in ‘ON’ position. The door shall not form an integral part of the draw-out portion of the panel. Sheet steel barriers shall be provided between the tiers in a vertical section. INSTRUMENT ACCOMMODATION Adequate space shall be provided for accommodating instruments, indicating lamps, control contactors and control MCBs. These shall be accessible for testing and maintenance without any danger of accidental contact with live parts of the circuit breaker and bus bar `ON’ lamps shall be provided on all outgoing feeders. BUS BAR CONNECTIONS



Bus bar and interconnections shall be of high conductivity electrolytic aluminium complying with requirement of grade E91E of IS:5082-1981 and shall be of rectangular cross section suitable for carrying the rated full load current and short circuit current without overheating of phase and neutral bus bar and shall be extendable on either side. Bus bar and interconnections shall be insulated with heat shrinkable sleeve and shall be colour coded and shall be supported on glass fiber reinforced thermosetting plastic insulated supports at regular intervals to withstand the force arising from in case of short circuit in the system. All bus bar shall be provided in a separate chamber and all connections shall be done by bolting. Additional cross sectional area shall be added to the bus bar to compensate for the holes. All connections between bus bar and breaker shall be through solid aluminium strips of proper size to carry full rated current as per approved for construction shop drawing and insulated with insulating sleeves. Bus bar shall be rated for current density of 1.0 amps/mm2 cross section area. TEMPERATURE - RISE LIMIT Unless otherwise specified, in the case of external surface of enclosures of bus bar trunking system which shall be accessible but do not need to be touched during normal operation, an increase in the temperature rise limits of 25° C above ambient temperature shall be permissible for metal surface and of 15° C above ambient temperature for insulating surfaces as per relevant IS Codes. CABLE COMPARTMENTS Cable compartment of adequate size shall be provided in the control panel for easy clamping of all incoming and outgoing cables entering from the top/bottom. Adequate supports shall be provided in cable compartment to support cables as per approved for construction shop drawing.

MOULDED CASE CIRCUIT BREAKER (MCCB) All MCCB’s shall be motor duty and Current Limiting type, and comprise of Quick Make – break switching mechanism, preferably Double Break Contact system, arc extinguishing device and the tripping unit shall be contained in a compact, high strength, heat resistant, flame retardant, insulating moulded case with high withstand capability against thermal and mechanical stresses. All MCCB’s shall be capable of defined Variable overload adjustment. All MCCB’s rated 200 Amps and above shall have adjustable Magnetic short circuit pick up. The trip command shall override all other commands. MCCB shall employ maintenance free double break contact system to minimise the let thru’ energies and capable of achieving discrimination upto full short circuit capacity of downstream MCCB. The manufacturer shall provide both discrimination tables and let thru energy curves. The breaking capacity of MCCB’s shall be asked for in the schedule of quantities. The breaking capacities specified will be ICU=ICS i.e type-2. Co-ordination as per relevant IS and IEC Codes.



The MCCB’s shall be provided with rotary handle operating mechanism. The handle position shall give positive indication of ‘ON’, ‘OFF’ or ‘Tripped’ thus qualifying to Disconnection as per the IS/IEC indicating the true position of all the contacts. In case of 4 Pole MCCB the neutral shall be defined and capable of offering protection. MINIATURE CIRCUIT BREAKER (MCB) Miniature Circuit Breaker shall comply with relevant IS Codes and shall be quick make and break type for 230/415 VAC 50 Hz application with magnetic thermal release for over current and short circuit protection. The breaking capacity shall not be less than 10 KA at 415 VAC. MCBs shall be DIN mounted. The MCB shall be Current Limiting type (Class-3). MCBs shall be classified (B,C,D ref IS standard) as per their Tripping Characteristic curves defined by the manufacturer. The MCB shall have the minimum power loss (Watts) per pole defined as per the IS/IEC and the manufacturer shall publish the values. The housing shall be heat resistant and having a high impact strength. The terminals shall be protected against finger contact to IP20 Degree of protection. All DP, TP and TPN miniature circuit breakers shall have a common trip bar independent to the external operating handle. PAINTING All sheet steel work shall undergo a process of degreasing, pickling in acid, cold rinsing, phosphating, passivating (seven tank processing) and then painted with electrostatic paint (Powder coating). The shade of colour of panel inside/outside shall be as per relevant BIS code.

LABELS Engraved PVC labels shall be provided on all incoming and outgoing feeder. Circuit diagram showing the arrangements of the circuit inside the control panel shall be pasted on inside of the panel door and covered with transparent plastic sheet. METERS i. All voltmeters and indicating lamps shall be through MCB’s. ii. Meters and indicating instruments shall be plug type. iii. All CT’s connection for meters shall be through Test Terminal Block (TTB). iv. CT ratio and burdens shall be as specified on the Single line diagram. CURRENT TRANSFORMERS



Current transformers shall be provided for Control panels carrying current in excess of 60 amps. All phase shall be provided with current transformers of suitable VA burden with 5 amps secondaries for operation of associated metering. The CTs shall confirm to relevant Indian Standards. The design and construction shall be dry type, epoxy resin cast robust to withstand thermal and dynamic stresses during short circuits. Secondary terminals of CTs shall be brought out suitable to a terminal block which shall be easily accessible for testing and terminal connections. The protection CTs shall be of accuracy class 5P10 and measurement CTs shall be of accuracy class I. SELECTOR SWITCH Where called for, selector switches of rated capacity shall be provided in control panels, to give the choice of operating equipment in selective mode. STARTERS Each motor shall be provided with a starter of suitable rating. Starters shall be in accordance with relevant IS Codes. All Star Delta and ATS Starters shall be fully automatic. CONTACTOR Contactor shall be built into a high strength thermoplastic body and shall be provided with an arc shield for quick arc extinguishing. Silver alloy tips shall be provided to ensure a high degree of reliability and endurance under continuous operation. The magnet system shall consist of laminated yoke and armature to ensure clean operation without hum or chatter. Starters contactors shall have 3 main and 2 Nos. NO / NC auxiliary contacts and shall be air break type suitable for making and breaking contact at minimum power factor of 0.35. For design consideration of contactors the starting current of connected motor shall be assumed to be 6 times the full load current of the motor in case of direct-on-line starters and 3 times the full load current of the motor in case of Star Delta and Reduced Voltage Starters. The insulation for contactor coils shall be of Class “E”. Coil shall be tape wound vacuum impregnated and shall be housed in a thermostatic bobbin, suitable for tropical conditions and shall withstand voltage fluctuations. Coil shall be suitable for 220/415±10% volts AC, 50 cycles AC supply. THERMAL OVERLOAD RELAY Thermal over load relay shall have built in phase failure sensitive tripping mechanism to prevent against single phasing as well as on overloading. The relay shall operate on the differential system of protection to safeguard against three phase overload, single phasing and unbalanced voltage conditions.



Auto-manual conversion facility shall be provided to convert from auto-reset mode to manual-reset mode and vice-versa at site. Ambient temperature compensation shall be provided for variation in ambient temperature from -5° C to +55°C. All overload relays shall be of three element, positive acting ambient temperature compensated time lagged thermal over load relays with adjustable setting. Relays shall be directly connected for motor upto 35 HP capacity. C.T. operated relays shall be provided for motors above 35 HP capacity. Heater circuit contactors may not be provided with overload relays. TIME DELAY RELAYS Time delay relays shall be adjustable type with time delay adjustment from 0-180 seconds and shall have one set of auxiliary contacts for indicating lamp connection.

INDICATING LAMP AND METERING All meters and indicating lamps shall be in accordance with IS:1248 and IS-1258. The meters shall be flush mounted type. The indicating lamp shall be of low wattage . Each MCC and control panel shall be provided with voltmeter 0-500 volts with three way and off selector switch, CT operated ammeter of suitable range with three nos. CTS of suitable ratio with three way and off selector switch, phase indicating lamps, and other indicating lamps as called for. Each phase indicating lamp shall be backed up with 5 MCB. Other indicating lamps shall be backed up with fuses as called for in Schedule of Quantities. TOGGLE SWITCH Toggle switches, where called for in Schedule of Quantities, shall be in conformity with relevant IS Codes and shall be of 5 amps rating. PUSH BUTTON STATIONS Push button stations shall be provided for manual starting and stopping of motors Equipment Green and Red colour push buttons shall be provided for ‘Starting’ and ‘Stopping’ operations. ‘Start’ or ‘Stop’ indicating flaps shall be provided for push buttons. Push Buttons shall be suitable for panel mounting and accessible from front without opening door, Lock lever shall be provided for ‘Stop’ push buttons. The push button contacts shall be suitable for 6 amps current capacity. CONDUITS Conduits and Accessories shall conform to relevant Indian Standards. Wall thickness shall be 16 gauge upto 32 mm dia and 14 gauge above 32 mm dia conduit. Screwed G.I. Conduits shall be used. Joints between conduits and accessories shall be securely made, to ensure earth continuity. All conduit



accessories shall be threaded type only. All raw metal shall be painted with bitumastic paint. Only approved make of conduits and accessories shall be used. Conduits shall be delivered to the site of construction in original bundles and each length of conduit shall bear the label of the manufacturer. Maximum permissible number of 650/1100 volt grade PVC insulated wires that may be drawn into rigid non metallic or GI Conduits are given below :

Size of wires Nominal Cross Maximum section Area(Sqmm)

Number of wires within conduit size(mm)

20 25 32 40 50

1.5 5 5 10 14 -

2.5 5 5 8 12 -

4 3 7 10 - -

6 2 5 8 - -

10 - 3 5 6 -

16 - 2 3 - 6

25 - - 2 4 6

35 - - - 3 5

CABLES: M.V. Cables shall be PVC insulated aluminium conductor and armoured cables conforming to IS Codes.

Cables shall be armoured and suitable for laying in trenches, ducts, and on cable trays as required. M.V. Cables shall be termite resistant. Cable glands shall be double compression glands. Control cables and indicating panel cables shall be multi core PVC insulated copper conductor and armoured cables. CABLE LAYING Cable shall be laid in accordance with IS code of Practice. Cables shall be laid on 14 gage factory fabricated perforated galvanized sheet steel cable trays, and cable drops / risers shall be fixed to ladder type cable trays factory fabricated out of galvanized steel angle. Access to all cables shall be provided to allow cable withdrawal / replacement in the future. Where more than one cable is running on a cable tray, one dia spacing shall be provided between cables to minimise the loss in current carrying capacity. Cables shall be suitably supported with Galvanized saddles when run on walls / trays. When buried, they shall be laid in 350 mm wide and 750 mm deep trench and shall be covered with 250 mm thick layer of soft sifted sand & protected with bricks/tiles. Special care shall be taken to ensure that the cables are not damaged at bends. The radius of bend of the cables when installed shall not be less than 12 times the diameter of cable.



WIRE AND WIRE SIZES 1100 V grade PVC insulted copper conductor wires in conduit shall be used. For all single phase/ 3 phase wiring, 1100 volts grade PVC insulated copper conductor wires shall be used. The equipment inside plant room shall be connected to the control panel by means of insulated copper conductor wires of adequate size in exposed conduits. Final connections to the equipment shall be through wiring enclosed in galvanized flexible conduits rigidly clamped at both ends and at regular intervals. An isolator shall be provided near each motorEquipment wherever the motorEquipment is separated from the supply panel through a partition barrier or through ceiling construction. PVC insulated copper conductor wires shall be used inside the control panel for connecting different components and all the wires inside the control panel shall be neatly dressed and plastic beads shall be provided at both the ends for easy identification of control wiring. The minimum size of control wiring shall be 1.5 sq. mm PVC insulated stranded soft drawn copper conductor wires drawn through conduit to be provided for connecting equipment and control panels. Power wiring, cabling shall be of the following sizes: a. Upto 5 HP motors/ 5 KW heaters 2 x 4 sq. mm copper conductor wires. ii. From 6 HP to 10 HP motors/ 3 x 6 sq. mm copper conductor wires

6 KW to 7.5 KW heaters i. From 12.5 HP to 15 HP motors 2 Nos. 3 x 6 sq. mm copper

conductor wires ii. From 20 HP to 25 HP motors 2 Nos. 3 x 10 sq. mm copper conductor

wires iii. From 30 HP to 35 HP motors 2 nos.3x 16 sq.mm aluminium conductor

armoured cable. iv. From 40 HP to 50 HP motors 2 Nos. 3x25 sq.mm aluminium conductor

armoured cable. v. From 60 HP to 75 HP motors 1 No. 3 x 70 sq. mm aluminium

conductor armoured cable.

vi. 100 HP motors conductor 1 No. 3 x 150 sq. mm. aluminium armoured

cable vii. 200 HP motor conductor 2 No. 3 x 150 sq. mm. aluminium

armoured cable.

All the switches, contactors, push button stations, indicating lamps shall be distinctly marked with a small description of the service installed. The following capacity contactors and overload relays shall be provided for different capacity motors or as per manufacturer’s recommendation.

PUMP HP TYPE OF STARTER CONTACTOR OVERLOAD CURRENT RELAY CAPACITY RANGE



5 HP Motors D O L 16 amps 6-10 amps 7.5 HP motors D O L 16 amps 9-15 amps 10 HP Motors D O L 25 amps 9-15 amps 12.5 HP Motors Star Delta 16 amps 9-15 amps 15 HP Motors Star Delta 25 amps 9-15 amps 20 HP Motors Star Delta 32 amps 14-23 amps 25 HP Motors Star Delta 32 amps 14-23 amps 200HP Motors DOL 325 amps CT Operated relay

Two speed motors when specified, shall be provided with DOL starter irrespective of it rating.

EARTHING Earthing shall be provided in accordance with relevant BIS Codes and shall be copper strips /wires .The main panel shall be connected to main earthing system of the power supply. All single phase metal clad switches and control panels be earthed with minimum 3 mm diameter copper conductor wire. All 3 phase motors and equipment shall be earthed with 2 numbers distinct and independent copper wires / tapes as follows:

i. Motor upto and including 2 No. 3 mm dia copper wire

10 HP rating. wires. ii. Motor 12.5 HP to 40 HP capacity 2 No. 4 mm dia copper wires iii. Motor 50 to 75 HP capacity. 2 No. 6 mm dia copper iv. Motor above 75 HP. 2 No. 25 mm x 3 mm copper

tapes. All switches shall be earthed with two numbers distinct and independent copper wires’ tapes as follows: i. 3 phase switches and control panel

upto 60A rating 2 No. 3 mm dia copper wires ii. 3 phase switches, and 2 No. 4 mm dia copper wires

control panels 63 amps to 100A rating. iii. 3 phase switches and control 2 No. 6 mm dia copper wires

panels 125 amps to 200 amps rating. iv. 3 phase switches, control 2 No. 3 mm x 25 mm copper tapes

panels, bus ducts, above 200 amps rating.

The earthing connections shall be tapped off from the main earthing of electrical installation. The overlapping in earthing strips at joints where required shall be minimum 75 mm. These straight joints shall be riveted with brass rivets & brazed



in approved manner. Sweated lugs of adequate capacity and size shall be used for all termination of wires. Lugs shall be bolted to the equipment body to be earthed after the metal body is cleaned of paint and other oily substance, and properly tinned. DRAWINGS Shop drawings for control panels and for wiring of equipment showing the route of conduit & cable shall be submitted by the contractor for approval of owner before starting the fabrication of panel and starting the work. On completion, four sets of complete “As-installed” drawings incorporating all details like, conduits routes, number of wires in conduit, location of panels, switches, junction/pull boxes and cables route etc. shall be furnished by the Contractor. TESTING Before commissioning of the equipment, the entire electrical installation shall be tested in accordance with relevant BIS codes and test report furnished by a qualified and authorised person. The entire electrical installation shall be gotten approved by Electrical Inspector and a certificate from Electrical Inspector shall be submitted. All tests shall be carried out in the presence of Project Manager. Testing of the panels shall be as per relevant BIS Codes : PAINTING All sheet steel work shall undergo a process of degreasing, thorough cleaning, and painting with a high corrosion resistant primer. All panels shall then be baked in an oven. The finishing treatment shall be by application of powder coating of approved shade. MEASUREMENT OF ELECTRICAL CONTROL PANELS Panels shall be counted as number of units. Quoted rates shall include as lumpsum (NOT measurable lengths) for all internal wiring, power wiring and earthing connections from the control panel to the starter and to the motor, control wiring for interlocking, power and control wiring for automatic and safety controls, and control wiring for remote start/stop as well as indication as per the specifications. The quoted rate of panel shall also include all accessories, switchgear, contactors, indicating meters and lights as per the Specifications and Schedule of Quantities. RUBBER MAT Rubber mat shall be provided in front to cover the full length of all panels. Where back space is provided for working from the rear of the panel, rubber mat shall also be provided to cover the full length of panel.



SECTION-III TECHNICAL DATA SHEETS

FIRE PROTECTION SYSTEM FIRE PUMPS & MOTOR 1. Electrical Driven Pumps

Make / Manufacturer : Quantity : Liquid Handed : Liquid Temp deg.C : Special Gravity of Liquid : Suction : Rated Discharge : Actual Discharge : Model : Horizontal / Design : Speed / No. of Stages : Impeller Dia (Maximum) : Suction / Delivery Size : Efficiency at Rated Capacity & Head : KW required at rated capacity & head : Shut Off Head : Material of Construction Pump Casing : Impeller : Pump Shaft : Shaft Sleeve : Casing Wearing Ring : Base Plate : Mechanical Seal : Make of Mechanical Seal : Wheather pumps is capable of discharging 150% of rated capacity at a head not less than 65% of rated head. : Whether automatic priming arrangement Included : Description of Motors Make : Model No. : Type : Frame size : Speed (RPM) : Rated Capacity (Power) : Full load current :



Enclosure : Coupling / Pulley : Class of Insulation : Size of Foundation : For complete coupled set mounted over MS base frame :

2. PIPING 15 NB TO 50 NB : 15 TO 50 NB Fittings : 65 NB TO 150 NB Pipes : 65 NB TO 150 NB Fittings : 200 NB ONWARDS Pipes : 200 NB ONWARDS Fittings : Flanges : Gaskets :

3. HYDRANT VALVES

Technical Specifications : Make : Working Pressure : Code for Design Mft. : Construction Features Type of Stem : Type of Inlet : Type of Outlet : Flange Drilling : Material of Construction Body and Bonnet : Stop Valve, Valve Seat : Check nut & gland nut :

4. PRESSURE GAUGE

Technical Specifications : Make : Working Pressure : Code for Design Mft. : Scale range : Construction Features Case : Pointer : Dial Size : Dial Lettering : Process Connection : Material of Construction Case : Movement : Block :



5. PRESSURE SWITCHES

Technical Specifications Make : Working Pressure : Scale range : Construction Features Protection : Cable Entry : Process Connection : Repeatability : Switch : Type : : No. of contacts : Contact Rating : Material of Construction Enclosure : Pressure element : Wetted Parts :

6. ELECTRICAL ACCESSORIES

MAKE OF THE FOLLOWING a. Motor Control Centre (Electrical Panel) : b. Vacuum circuit breaker : c. Air circuit breaker : d. MCCB : e. MCB : f. Rotary switch : g. Soft Starter : h. Auto-transformer Starter : j. Automatic Star Delta Starter : k. Direct on line Starter : l. Contactor : m. Current Transformer (cast resin type) : n. Single phase preventor : o. Push Button : p. Change over switch : q. Ammeter & Voltmeter : KWH meter r. Relay : s. Indication lamp : t. Cables : u. Wires : v. Variable Frequancy Drive. :



SECTION-IV: LIST OF BUREAU OF INDIAN STANDARDS CODES

All equipment, supply, erection, testing and commissioning shall comply with the requirements of Indian Standards and code of practices given below as amended upto 30th April, 2002. All equipment and material being supplied by the contractor shall meet the requirements of IS, electrical inspectorate and Indian Electricity rules and other Codes / Publications as given below: 1. Pipes and Fittings

IS : 1239 (Part 1) Mild steel, tubes, tubulars and other wrought steel fittings: Part 1 Mild Steel tubes.

IS : 1239 (Part 2) Mild Steel tubes, tubulars and other wrought steel fittings:

Part 2 Mild Steel tubulars and other wrought steel pipe fittings.

IS : 1879 Malleable cast iron pipe fittings. IS : 3468 Pipe nuts. IS : 3589 Seamless or electrically welded steel pipes for water, gas and

sewage (168.3 mm to 2032 mm outside diameter). IS : 4346 Specifications for washers for use with fittings for water

services. IS : 4711 Methods for sampling steel pipes, tubes and fittings. IS : 6392 Steel pipe flanges IS : 6418 Cast iron and malleable cast iron flanges for general

engineering purposes. 2. Valves

IS : 778 Specification for copper alloy gage, globe and check valves

forwater works purposes. IS : 780 Specification for sluice valves for water works purposes (50

mm to 300 mm size). IS : 1703 Specification copper alloy float valves (horizontal plunger

type) for water supply fittings. IS : 3950 Specification for surface boxes for sluice valves IS : 5312 (Part 1) Specification for swing check type reflux (non return) valves part 2 Multi door pattern.



IS : 5312 (Part 2) Specification for swing check type reflux (non return) valves : part 2 Multi door pattern. IS : 13095 Butterfly valves for general purposes.

3. Fire Fighting Equipment

TAC Tariff Advisory Committee fire protection manual Part-I. TAC Rules of Tariff Advisory Committee for automatic sprinkler system. NFPA : 13 Installation of Sprinkler System NFPA : 14 Installation of Standpipe & Hose System NFPA : 20 Installation of Stationary pump for Fire Protection IS : 636 Non-percolating flexible fire fighting delivery hose. IS : 884 Specification for first aid hose reel for fire fighting. IS : 901 Specification for couplings, double male and double female,

instantaneous pattern for fire fighting. IS : 902 Suction hose couplings for fire fighting purposes. IS : 903 Specification for fire hose delivery couplings, branch pipe, nozzles

and nozzle spanner. IS : 904 Specification for 2-way and 3-way suction collecting heads for fire

fighting purposes. IS : 907 Specification for suction strainers, cylindrical type for fire fighting

purposes. IS : 908 Specification for fire hydrant, stand post type. IS : 909 Specification for underground fire hydrant, sluice valve type. IS : 910 Specification for portable chemical foam fire extinusiher. IS : 933 Specification for portable chemical foam fire extinguisher. IS : 1648 Code of practice for fire safety of building (general): Fire fighting

equipment and its maintenance. IS : 2171 Specification for portable fire extinguishers dry powder (catridge

type) IS : 2190 Selection, installation and maintenance of first aid fire extinguishers–

Code of practice. IS : 2871 Specification for branch pipe, universal, for fire fighting purposes. IS : 2878 Specification for fire extinguishers, carbon dioxide type (portable and

trolley mounted). IS : 3844 Code of practice for installation and maintenance of internal fire

hydrants and hose reel on premises. IS : 5290 Specification for landing valves. IS 5714 Specification for coupling, branch pipe, nozzle, used in hose reel

tubing for fire fighting. IS : 8423 Specification for controlled percolation type hose for fire fighting. IS : 10658 Specification for higher capacity dry powder fire extinguisher (trolley

mounted). IS : 11460 Code of practice for fire safety of libraries and archives buildings. IS : 1309 External hydrant systems – Provision and maintenance – Code of

practice.



PART – D

INTERNAL ELECTRICAL

INSTALLATION WORKS



TECHNICAL SPEIFICATIONS FOR INTERNAL ELECTRICAL INSTALLATION WORKS

The contractor shall be a licensed electrical contractor of appropriate class suitable for execution of the electrical work in the State of Chhattisgarh. A copy of the valid license shall be enclosed with the offer. He shall engage suitably skilled/ licensed workmen of various categories for execution of work supervised by supervisors / Engineer of appropriate qualification and experience to ensure proper execution of work. They will carry out instructions of Engineer-in-charge and other senior officers of the Department during the progress of work. This Chapter covers the general Technical requirements of “CPWD General specifications for Electrical works, Part-I Internal (2205)” applicable to works contract for execution of Internal Electrical Installation works. Works to be done by the Contractor: Unless and otherwise mentioned in the tender documents, the following works shall be done by the contractor, and therefore their cost shall be deemed to be included in their tendered cost:-

i. Foundations for equipments and components where required, including

foundations bolts.

ii. Cutting and making good all damages caused during installation and restoring the

same to their original finish.

iii. Sealing of all floor openings provided by him for pipes and cables, from fire safety

point of view, after laying of the same.

iv. Painting at site of all exposed metal surfaces of the installation other than pre-

painted items like fittings, fans , switchgear/ distribution gear items, cubicle

switchboard etc. Damages to finished surfaces of these items while handling and

erection, shall however be rectified to the satisfaction of the Engineer-in-charge.

v. Testing and commissioning of completed installation.

Storage and Custody of Materials: Suitable and lockable storage accommodation shall be provided by the Department free of cost to the contractor. However, the watch and ward of the stores and their safe custody shall be his responsibility till the final taking over of the installation by the Department. Tools for handling and erection: All tools and tackles required for handling of equipments and materials at site of work as well as for their assembly and erection and also necessary test instruments shall be the responsibility of the contractor. Co-ordination with other agencies: The contractor shall co-ordinate with all other agencies involved in the building work so that the building work is not hampered due to delay in his work. Recessed conduit and other works, which directly affect the progress of building work, should be given priority. Care of Buildings:



Care shall be taken by the contractor to avoid damage to the building during execution of his part of the work. He shall be responsible for repairing all damages and restoring the same to their original finish at his cost. He shall also remove at his costs all unwanted and waste materials arising out of his work from the site. Structural Alterations to Buildings:

i. No structural member in the building shall be damaged/ altered, without prior

approval from the competent authority through the Engineer-in-charge.

ii. Structural provisions like openings, cutouts, if any, provided by the department for

the work, shall be used. Where these require modifications, or where fresh

provisions are required to be made, such contingent works shall be carried out by

the contractor at his cost.

iii. All such openings in floors provided by the Department shall be closed by the

contractor after installing the cables/conduits/rising mains etc. as the case may

be, by any suitable means as approved by the Engineer-in-charge without any

extra payment.

iv. All chases required in connection with the electrical works shall be provided and

filled by the contractor at his own cost to the original architectural finish of the

buildings.

Work in occupied buildings:

i. When work is executed in occupied buildings, there would be minimum of

inconvenience to the occupants. The work shall be programmed in consultant with

the Engineer-in-charge and the occupying department. If so required, the work

may have to be done even before and after office hours.

ii. The contractor shall be responsible to abide by the regulations or restrictions set

in regard to entry into, and movement within the premises.

iii. The contractor shall not tamper with any of the existing installations including their

switching operations or connections there to, without specific approval from the

Engineer-in-charge.

Conformity to IE Act, IE Rules, and standards: All Electrical works shall be carried out in accordance with the provisions of Indian Electricity Act, 1910 and Indian Electricity Rules, 1956 amended up to date (Date of call of tender unless specified otherwise). General requirements of components: Quality of materials:



All materials and equipments supplied by the contractor shall be new. They shall be of such design, size and materials as to satisfactorily function under the rated conditions of operation and to withstand the environmental conditions at site. Inspection of materials and equipments: Materials and equipments to be used in the work shall be inspected by the Departmental officers. Such inspection will be of following categories:

• To inspect materials at the Authorized Dealer’s work, to ensure delivery of

genuine materials at site.

• To inspect the materials at site at the time of receipt at site.

Similarly, for fabricated equipments, the contractor will first submit dimensional detailed drawings for approval before fabrication is taken up in the factory. Suitable stage inspection at factory also will be made to ensure proper use of materials, workmanship and quality control. Ratings of Components:

a. All components in a wiring installation shall be of appropriate ratings of voltage,

current, and frequency, as required at the respective sections of the electrical

installation in which they are used.

b. All conductors, switches and accessories shall be of such size as to be capable of

carrying the maximum current, which will normally flow through them, without their

respective ratings being exceeded.

Conformity to standards:

a. All components shall conform to relevant Indian standard Specifications, wherever

existing.

Interchangeability:

Similar parts of all switches, Lamp holders, distribution fuse boards, switch gears, ceiling roses, brackets, pendants, fans and all other fittings of the same type shall be interchangeable in each installation.

Workmanship:

Good workmanship is an essential requirement to be complied with. The entire work of manufacture/ fabrication, assembly and installation shall conform to sound engineering practice.

Proper supervision/ skilled workmen: The contractor shall be a licensed electrical contractor of appropriate class

suitable for execution of the electrical work. He shall engage suitably skilled/ licensed workmen of various categories for execution of work supervised by



supervisors / Engineer of a appropriate qualification and experience to ensure proper execution of work. They will carry out instructions of Engineer-in-charge and other senior officers of the Department during the progress of work.

Use of quality materials: Only quality materials of reputed make as specified in the tender will be used in

work. Fabrication in reputed workshop: Switch boards and LT panels shall be fabricated in a factory/ workshop having

modern facilities like quality fabrication, seven tank process, powder/ epoxy paint plant, proper testing facilities, manned by qualified technical personnel.

Guarantee The installation will be handed over to the Department after necessary testing and commissioning. The installation will be guaranteed against any defective design/ workmanship. Similarly, the materials supplied by the contractor will be guaranteed against any manufacturing defect, inferior quality. The guarantee period will be for a period of 12 months from the date of handing over to the Department. False ceiling Coordination: False ceiling electrical layout will be coordinated with the Architect and the Civil Engineer so that reflected drawing provides for symmetrical and aesthetic layout for the following (as applicable):-

Fans Light fittings A/C Diffuses Fire detectors Sprinklers

Speakers etc. ELECTRIC POWER DISTRIBUTION AND WIRING Introduction

These electric power will be received and distributed in a building, through following means: -

i. Cabling and switchgear to receive power.

ii. The building is divided into convenient number of parts, each part served

by a rising main system to distribute power vertically/ horizontally.

iii. Power flows from rising main through tap-off box to floor main board to final

DBs and then to wiring.



iv. While rising main takes care of general lighting and power outlet load of the

building, other motor loads are fed by independent cables of suitable

capacity fed from properly designed essential/ non-essential LT panels with

suitably designed switchgear having necessary control and safety features.

v. Therefore the distribution/ wiring system essentially consists of provision of

cables, switchgear, rising main, bus-ducting , earthing, laying of pipes/

conduits etc. (in surface or recess) based on proper detailed designing to

decide on various sizes/ capacities of these components and various

controls and safeties involved, to provide an efficient, reliable, safe and

adequate electrical distribution and wiring system.

System of distribution and wiring:

i. The wiring shall be done from a distribution system through main and/ or

branch distribution boards. The system design and location of boards will

be properly worked out.

ii. Each main distribution board and branch distribution board shall be

controlled by an incoming circuit breaker/ linked switch with fuse. Each

outgoing circuit shall be controlled by a circuit breaker/ switch with fuse.

iii. For non-residential buildings, as far as possible, DBs shall be separate for

light and power.

iv. Only MCCB/MCB/HRC fuse type DBs shall be used. Rewirable type fuses

shall not be used.

v. Three phase DBs shall not be used for final circuit distribution as far as

possible.

vi. ‘Power’ wiring shall be kept separate and distinct from light wiring, from the

level of circuits, i.e., beyond the branch distribution boards. Conduits for

light/power wiring shall be separate.

vii. Essential/ non-essential/ UPS distribution - each will have a completely

independent and separate distribution system starting from the main,

switchboard up to final wiring for each system. As for example, conduit

carrying non-essential wiring shall not have essential or UPS wiring. Wiring

for essential and UPS supply will have their own conduit system. No mixing

of wiring is allowed.

viii. Generally, no switchboard will have more than one source of incoming

supply. More than one incoming supply will be allowed only at main board

with proper safety and interlocking so that only one source can be switched

on at a time.



ix. Each MDB/DB/Switch Board will have reasonable spare outgoing ways for

future expansion.

x. Balancing of 3-phase circuit shall be done.

Wiring: Sub main & Circuit Wiring: a. Sub main wiring:

Sub main wiring shall mean the wiring from main/ distribution switchboard to another.

b. Circuit wiring: Circuit wiring shall mean the wiring form the distribution board to the 1st tapping point inside the switch box, from where point wiring starts.

Measurement of sub main and circuit wiring:

i. Circuit and sub main wiring shall be measured on linear basis along the run

of the wiring. The measurement shall include all lengths from end to end of

conduit or channel as the case may be, exclusive of interconnections inside

the switchboard etc. The increase on account of diversion or slackness

shall not be included in the measurement.

ii. The length of circuit wiring with two wires shall be measured form the

distribution board to the nearest switch box from which the point wiring

starts. Looping of switch boxes also will be counted towards circuit wiring,

measured along the length of conduit/ channel.

iii. When wires of different circuits are grouped in a single conduit/ channel,

the same shall be measured on linear basis depending on the actual

number and sizes of wires run.

iv. Protective (loop earthing) conductors, which are run along the circuit wiring

and the sub main writing, shall be measured on linear basis and paid for

separately.

v. Note: Conduit carrying sub main will not carry circuit/ point wiring. Similarly

conduit carrying circuit wiring will not carry sub main/ point wiring. Conduit

carrying point wiring will not carry sub main/ circuit wiring.

Measurement of other wiring work: Except as specified above for point wiring, circuit wiring and sub main wiring, other types of wiring shall be measured separately on linear basis



along the run of wiring depending on the actual number and sizes of wires run.

Point wiring: Definition

A point (other than socket outlet point) shall include all work necessary in complete wiring to the following outlets from the controlling switch or MCB. a. Ceiling rose or connector (in the case of points for ceiling/ exhaust fan

points, prewired light fittings, and call bells). b. Ceiling rose (in case of pendants except stiff pendants). c. Back plate (in the case of stiff pendants). d. Lamp holder (in the case of goose neck type wall brackets, batten

holders and fittings which are not prewired).

Scope: Following shall be deemed to be included in point wiring. a. Conduit/ channel as the case may be, accessories for the same and wiring

cables between the switch box and the point outlet, loop protective earthing of each fan/ light fixture.

b. All fixing accessories such as clips, screws, Phil plug, rawl plug etc. as required.

c. Metal or PVC switch boxes for control switches, regulators, sockets etc, recessed or surface type, and phenolic laminated sheet covers over the same.

d. Outlet boxes, junction boxes, pull-through boxes etc. but excluding metal boxes if any, provided with switchboards for loose wire/ conduit terminations.

e. Any special block required for neatly housing the connector in batten wiring system.

f. Control switch or MCB, as specified. g. 3 pin or 6 pin socket, ceiling rose or connector as required. (2 pin and 5 pin

socket outlet shall not be permitted). h. Connections to ceiling rose, connector, socket outlet, lamp holder, switch etc.

i. Bushed conduit or porcelain tubing where wiring cables pass through wall etc.

Measurement a. Point wiring (other than socket outlet points)

i. Unless and otherwise specified, there shall be no linear measurement for point wiring for light points, fan points, exhaust fan points and call bell points. These shall be measured on unit basis by counting, and classified as laid down below:

Classification: Points measured on unit basis shall be classified as under according to the type of building. a. Residential buildings: -

i. Group ‘A’, for point wiring for type I, type II and type III

residential quarters and hostels.



ii. Group ‘B’ for point wiring for type IV and above type of

residential quarters and barracks.

b. Non residential buildings: Group ‘C’ for all types of non-residential buildings such as offices, hospitals, laboratories, educational institutions, libraries etc.

c. For any other type of building:- The group under which the points are to be classified shall be decided by the concerned Chief Engineer (Elect.).

Point wiring for socket outlet points: i. The light (6A) point and power (16A) point wiring shall be measured

on linear basis, form the respective tapping point of live cable,

namely, switch box, another socket outlet point, or the sub

distribution board as the case may be, up to the socket outlet.

ii. The metal/ PVC box with cover, switch/MCB, socket outlet and other

accessories shall be measured and paid as a separate item.

Note: There shall normally be no “on the board” light plug point. iii. The power point outlet may be 16A/6 A six pin socket outlet, where

so specified in the tender documents. Group Control point wiring:

i. In the case of points with more than one point controlled by the

same switch, such points shall be measured in parts i.e. (a) from the

switch to the first point outlet as one point and (b) for the

subsequent points, the distance from that outlet to the next one and

so on, shall be treated as separate point(s)

ii. No recovery shall be made for non-provision of more than one

switch in such cases.

Twin control light point wiring: i. A light point controlled by two numbers of two way switches shall be

measured as two points from the fitting to the switches on either side


ceiling rose or connector in such cases.

Multiple controlled call bell point wiring: i. In the case of call bell points with a single call bell outlet, controlled

form more than one place, the points shall be measured in parts i.e.

(a) from the call bell outlet to one of the nearest ceiling roses meant

for connection to bell push, treated as one point and (b) from that

ceiling rose to the next one and so on, shall be treated as separate

point(s)




ceiling rose or connector for connection to call bell in such cases.

Wiring System: i. Wiring shall be done only by the looping system. Phase/ live

conductors shall be looped at the switch box. For point wiring,

neutral wire/ earth wire looping for the 1st point shall be done in the

switch box; and neutral/ earth looping of subsequent points will be

made from point outlets.

ii. In wiring, no joints in wiring will be permitted any where, except in

switch box or point outlets, where jointing of wires will be allowed

with use of suitable connector.

iii. The wiring throughout the installation shall be such that there is no

break in the neutral wire except in the form of linked switchgear.

iv. Color coding:-

Following colour coding shall be followed in wiring:- Phase : Red/Yellow/Blue (Three phase wiring) Live : Red (Single phase wiring) Neutral : Black Earth : Yellow/Green.

v. Termination of circuit into switchboard:- Circuit will consist of phase/ neutral/ earth wire. Circuit will terminate in a switch board (first tapping point, where form point wiring starts) in following manner:- Phase wire terminated in phase connector. Neutral wire terminated in neutral connector. Earth wire terminated in earth connector. The switchboard will have phase, neutral and earth terminal connector blocks to receive phase/ neutral/ earth wire.

Run of wiring:

i. The type of wiring shall be as specified in the tender documents

namely, surface conduit/ recessed conduit, steel/ PVC, channel.

ii. Surface wiring shall run as far as possible along the walls and

ceiling, so as to be easily accessible for inspection.

iii. Above false ceiling, in no case, open wiring shall be allowed. Wiring

will be done in recessed conduit or surface steel/pvc conduit.



iv. In recessed conduit system, routes of conduit will be planned, so

that various inspection boxes provided don’t present a shabby look.

Such boxes can be provided 5 mm above plaster level, and they can

be covered with plaster of pairs with marking of junction boxes.

v. Where number of electrical services like electrical wiring, telephone

wiring, computer cabling, pass through corridors, it may be proper to

plan such service with properly designed aluminum/ PVC channels,

duly covered by a false ceiling, so that subsequently such service

can be maintained and additional cables can be provided.

vi. Generally conduits for wiring will not be taken in floor slabs. When it

is unavoidable, special precaution to be taken to provide floor

channels with provision for safety and maintenance. Alternatively,

false flooring can be provided.

Passing through walls or floors: i. When wiring cables are to pass through a wall, these shall be taken

through a protection (steel/ PVC) pipe or porcelain tube of suitable

size such that they pass through in a straight line without twist or

cross in them on either end of such holes. The ends of metallic pipe

shall be neatly bushed with porcelain, PVC or other approved

material.

ii. All floor openings for carrying any wiring shall be suitably sealed

after installation.

Joints in wiring: i. No bare conductor in phase and/ or neutral or twisted joints in phase

neutral, and/ or protective conductors in wiring shall be permitted.

ii. There shall be no joints in the through-runs of cables. If the length of

final circuit or sub main is more than the length of a standard coil,

thus necessitating a through joint, such joints shall be made by

means of approved mechanical connectors in suitable junction

boxes.

iii. Termination of multistranded conductors shall be done using

suitable crimping type thimbles.

Ratings of outlets: (to be adopted for design).

i. Incandescent lamps in residential and non-residential buildings shall

be rated at 60W and 100W respectively.



ii. Ceiling fans shall be rated at 60W. Exhaust fans, fluorescent tubes,

compact fluorescent tubes, HPMV lamps, HPSV lamps, LED fittings

etc. shall be rated according to their capacity. Control gear loses

shall be also considered as applicable.

iii. 6A and 16A socket outlet points shall be rated to 100W and 1000W

respectively, unless the actual values of loads are specified.

Capacity of Circuits: i. Lighting circuit shall feed light/ fan/ call bell points. Each circuit shall

not have more than 800 Watt connected load or more than 10

points. However, in case of CFL/ LED points, where load per point

may be less, number of points may be suitably increased.

ii. Power circuit in non-residential building will have only one outlet per

circuit.

iii. Each power circuit in residential building can feed following outlets:

a. Not more than 2 Nos. 16A outlets. b. Not more than 3 Nos. 6A outlets. c. Not more than 1 No. 16A and 2 Nos. 6A outlets.

iv. Load more than 1 KW shall be controlled by suitably rated MCB and

cable size shall be decided as per calculations.

v. Power wiring with bus trunking:

It is permitted to meet large-scale power requirement in a hall, or floor, with use of single phase or 3 phase bus bars running inside a metal enclosure. This will be provided with careful design and use of factory fabricated bus-trunking of reputed make conforming to relevant BIS standards and with standard accessories like End feed unit, tap off with necessary safety features like over current, short-circuit and earth fault protection. Such trunking will be of specified breaking KA rating.

Socket out lets: i. Socket outlets shall be 6A 3 pin, 16 Amp 3 pin or 16/6 Amp 6 pin.

The third pin shall be connected to earth through protective (loop

earthing) conductor, 2 pin or 5 pin sockets shall not be permitted to

be used.

ii. Conductors connecting electrical appliances with socket outlets shall

be of flexible type with an earthing conductor for connection to the

earth terminal of plug and the metallic body of the electrical

appliance.



iii. Sockets for the power outlets of rating above 1KW shall be of

industrial type with associated plug top and controlling MCB.

iv. Where specified, shutter type (interlocking type) of sockets shall be

used.

v. Every socket outlet shall be controlled by a switch or MCB, as

specified. The control switch/ MCB shall be connected on the ‘live’

side of the line.

vi. 5A/6A and 15A/16A socket outlets shall be installed at the following

positions, unless otherwise specified.

a. Non-residential buildings – 23cm above floor level. b. Kitchen – 23cm above working platform and away from the

likely positions of stove and sink. c. Bathroom – No socket outlet is permitted for connecting a

portable appliance thereto. MCB/IC switch may be provided above 2 m for fixed appliances, and at least 1 m away form shower.

d. Rooms in residences – 23 cm above floor level, or any other level in special cases as desired by the Engineer-in-charge.

Cables:

I. Copper conductor cable only will be used for sub main/ circuit/ point

wiring.

II. Minimum size of wiring:

Light Wiring: 1.5 or 2.5 sq.mm. as specified Power Wiring: 4.0 sq.mm. Power circuit rated: More than 1 KW : Size as per calculation.

III. Insulation:

Copper conductor cable shall be PVC insulated, Fire retardant, low smoke (FRLS) type conforming to BIS & Tender Specifications.

IV. Multi stranded Cables are permitted to be used.

Flexible Cable: i) Conductor of flexible cables shall be of copper. The cross sectional

area of conductor for flexible cable shall be as per design. ii) Only 3 single core flexible cables shall be used for connecting

single-phase appliances. iii) Unless the flexible cables are mechanically protected by armour, or

tough rubber, or PVC sheath, these shall not be used in workshops and other places where they are liable to mechanical damage.



iv) Flexible cable connection to bell push from ceiling rose shall be taken through PVC conduit/ casing and capping.

Wiring Accessories: a. Control switches for point:

i) Control switches (single pole switch) carrying not more than 16A shall be modular type. The switch shall be ‘On’ when the knob is down.

ii) Modular type switches of reputed make along with matching mounting boxes, shall be used in non-residential buildings and residential quarters of all types. Modular type sockets, stepped type fan regulators shall be used. All such boxes, switches and accessories shall be of same make of modular switch manufacturer.

iii) It is recommended to provide double pole MCB in proper enclosure as power out let for window type AC units, geysers etc.

b. Switch Box: Switch box shall be hot dip galvanized, factory fabricated.

Suitable in size for surface/ recess mounting and suitable in size for accommodating the required number of switches and accessories

c. Switch box covers (for application other than modular type):

Phenolic laminated sheets of approved shade be used for switch box covers. These shall be of 3mm thick synthetic phenolic resin bonded laminated sheet as base material and conforming to grade P-I of IS:2036-1947.

d. Ceiling rose: i) A ceiling rose shall not be used on a circuit, the voltage of

which normally exceeds 250V. ii) Only one flexible cord shall be connected to a ceiling rose.

Specially designed ceiling roses shall be used for multiple pendants.

iii) A ceiling rose shall not embody fuse terminal as an integral part of it.

e. Lamp holders: i) Lamp holders may be batten, angle, pendant or bracket

holder type as required. The holder shall be made of brass and shall be rigid enough to maintain shape on application of a nominal external pressure. There should be sufficient threading for fixing the base to the lamp holder part so that they do not open out during attention to the lamp holder part so that they do not open out during attention to the lamp or shade.

ii) Lamp holders for use on brackets and the like shall have not less than 1.3 cm nipple, and all those for use with flexible pendant shall be provided with cord grips.

iii) All lamp holders shall be provided with shade carriers.



iv) Where center contract Edison Screw lamp holders are used, the outer or screw contact shall be connected to the ‘middle wire’, or the neutral conductor of the circuit.

f. Fittings: Types: The Type of fittings shall be as specified in tender documents. Indoor type fittings:

i) Where conductors are required to be drawn through tube or channel leading to the fitting, the tube or channel must be free from sharp angles or projecting edge, and of such size as will enable them to be wired with the conductors used for the final circuit without removing the braiding or sheathing. As far as possible all such tubes and channels should be of sufficient size to permit looping back.

ii) Wires used within prewired fittings shall be flexible with PVC insulation and 14/0.193 mm (minimum) copper conductors. The leads shall be terminated on built-in-terminal block, ceiling rose or connector, as required.

iii) Fittings using discharge lamps shall be complete with power factor correction capacitors, either integrally or externally. An earth terminal with suitable marking shall be provided for each fitting for discharge lamps.

iv) Fittings shall be installed such that the lamp is at a height of 2.4m above floor level, unless otherwise directed by the Engineer-in-charge.

v) Fittings made of CRCA shall be phosphatized and powder/ epoxy painted. For coastal areas and humid area like toilets, kitchen, for prolonging the life of such fittings, corrosion free materials like engineering plastic, aluminum, stainless etc. should be used.

Outdoor fittings: Outdoor fittings shall have suitable IP protection. It is preferable that street light fittings are of cast aluminum body of IP65, for reducing recurring maintenance cost and improved performance. Where required, IP 66 fittings also can be provided for reducing maintenance frequency and cost. Other fittings, which are not available with tested IP 65/54 protection, can be properly fabricated with weatherproof features, proper gasketing etc. As far as possible corrosion free material like cast aluminum, stainless steel, engineering plastics may be used for fabrication of such fittings, to prolong life such fittings. There should not be any exposed wiring in such outdoor fittings.

Attachment of fittings and accessories: a. Conduit wiring system:

i) All accessories like switches, socket outlets, call bell pushes and regulators shall be fixed in flush pattern inside the switch/ regulator boxes. Accessories like ceiling roses, brackets, batten holders etc. shall be fixed on outlet boxes. The fan regulators may also be fixed on outlet boxes, if so directed by the Engineer-in-charge.

ii) Aluminum alloy or cadmium plated iron screws shall be used to fix the accessories to their bases.



iii) The switch box/ regulator box shall normally be mounted with their bottom 1.25m from floor level, unless otherwise directed by the Engineer-in-charge.

b. Fixing to walls and ceiling: i. Wooden plugs for fixing to wall/ceiling will not be allowed. Fixing will

be done with the help of PVC sleeves/ Rowel plugs/ dash fasteners as required.

ii. Drilling of holes shall be done by drilling machines only. No manual drilling of hole will be allowed.

Marking of Switch Boards: i. Schematic diagram:

First a comprehensive schematic diagram is to be prepared, starting form Main LT Panel, rising main, sub main boards, DBs, etc. and the manner in which they are connected. This will include essential, non-essential and UPS/ Inverter systems. Sizes of interconnecting main/sub main cables shall be indicated.

ii. Marking of each Main Board: Each main board/ sub main board shall be marked indicating rating of each incoming/ outgoing switch and the details of load/ area it feeds. Detail/ size of incoming and outgoing cable also shall be marked indicating from where the incoming cable has originated.

iii. Marking of Distribution Board: Each distribution boards shall be marked indicating detail of incoming switch (Size of cable and from where it is fed) and marking of each outgoing MCB indicating the area it feeds. Suitable marking sticker will be suitably fixed to indicate such details.

iv. Marking of Power/ Light DBs: Power/ light DBs shall be marked ‘P’ and ‘L’ respectively. v. Marking for Non-essential /Essential/UPS/Switch Boards:

Each switchboard shall be marked Essential/ non-essential/ UPS to indicate the nature of such switchboards.

vi. Marking of Main earthing terminal: Main earthing terminals in main/ sub main switchboard shall be permanently marked, as “safety Earth-don’t remove”.

LT distribution switchgear: Only following type switchboards will be used: a. Main/ Sub main switchboard of cubicle type. b. DBs – Only pre-wired type MCB DBs to be used. c. Specially designed switchboards.

Also specially designed switchboards can be used with detailed specification and fabrication drawings approved by the technical sanctioning authority.

Location of Switchboards:

i. Switch boards for common use are to be located in common areas like corridors, lobby etc. and not to be located in locked room.



ii. Switch board shall be located only in dry situation and in well-ventilated space. They shall not be placed in the vicinity of storage battery or exposed to chemical fume.

iii. Switch boards shall not be erected above gas stove, or sinks or within 2.5 meter of any washing unit in washing rooms of launderings or in the bath rooms, toilets, or kitchen.

iv. Locating main boards under staircase or standing open in corridor is

not a desirable practice, besides being highly unaesthetic.



LIST OF RECOMMENDED MAKES/ MANUFACTURERS FOR ITEMS USED IN INTERNAL ELECTRIFICATION WORK

1.0 GENERAL

1.1 The makes and manufacturers shall preferably be from the following list. In case the same is not available in the market or in case of a change in trade name, equivalent makes/ re-designated manufacturer shall be used with the approval of NMDC Ltd.

1.2 In case of items not covered in the list, the material proposed shall have BIS certification mark and can be used with the approval of NMDC Ltd.

1.3 In case during execution of the project the preferred models in the list of approved make become obsolete or model is discontinued or an improved model/version is launched by the manufacturer, then the latest model may be considered for acceptance by NMDC/Consultant on verifying the details without any financial implication to NMDC Ltd.

1.4 The colour and texture of the switches, fan, light fitting etc. shall be finalized with NMDC Ltd, based on the colour scheme for the walls without any price implication.

1.5 The successful tenderer shall have to use the makes from the list in consultation with the CLIENT.

S NO.

ITEM DESCRIPTION MAKE

1 PVC pipes, heavy duty, including accessories, bends, corner tees etc.

KG, BEC, B Plast, Modi, Universal Polycab, Precision, Avon plast, Ratna, Sudhakar, Atul, Bajaj Plast, Note: Pipe and accessories used shall be of the same make only

2

Copper conductor multi strand PVC Insulated Wires FRLS type, 600V/1100V Grade

Universal/ RPG/ KEI/ Polycab/ Finolex/Gupta Cables/ Insucon/ Havells/ Special Cables/ Ravin cables/ Fortune Art/ Dynamic Cables/ Thermocablels/ Epsilon/ Paramount/ Prestige Cables/ Kalinga/ L&T/ Lapp/ Polycab/ Ravocab/Delton

3

Power cable: XLPE Aluminum conductor PVC insulated armoured / unarmoured cables

CCI/ Gloster/ NICCO/ Polycab/ Gutpa/ RPG/ KEI/ Universal Cables/ Finolex/ LAPP/ Havells/ Paramount/ Ravin/ Ahoka



4

Modular Range switches, sockets, TV/ Telephone sockets, front plate, Zinc passivated metal mounting boxes

Cona/ HPL/ Legrand/ Philips/ Anchor/ GM/ Crabtree/ C&S/ Precision/ Ellora/ Schneider/ MDS/Havells/ Indo-Asian/ MK/ North West

5 MCB’s distribution boards double door

Hager/ C&S/ Merlin Gerin/ ABB/ Siemens/ Legrand/Standard/Schneider/Havells/G.E/L&T

6 MCCB/ MCB/ MPCB/ ELCB/ RCCB

Hager/ C&S/ Merlin Gerin/ ABB/ Siemens/ Legrand/ Standard/ Schneider/ Havells/ G.E/ L&T

7 Data & voice wires D-link, Polycab, Universal, Delton, Finolex, RR cable

8 Cable glands,Double compression.

Comet/ HMI/ Lapp/ Phoenix/ Precision/ CCI

9 Cable Lugs Dowells/ Jainson/ Connect well/ Phoenix

10 Batten holder,Angle holder,Celing rose

Maru/ Anchor/ Cona/ Legrand/ Phillips/ GM/ HPL (Same as Modular switch make)

11 Telephone tag block high quality Fire resistant moulded FR box

Krone/ Hensel

12 Electronic Call bell/ Fan regulator

Cona/ Phillips/ GM/ HPL/ Anchor/ Craptree/ ABB/ C&S (Same of modular switch make)

13 Looping box, junction box of polycarbonate, thermoplastic, IP65 weather proof type

HENSEL/SINTEX

14 TV coaxial cable Delton/ Finolex/ Universal/ Telelink/ Gupta Cables/ Suyog Electricals/ Polycab/ Havells

15

LT PDB (Normal Floor Panel/ Common Area Lighting Panel/ Emergency Panel/ Lift Panel

Andrew Yule/ BCH/ Schneider/ Havells/ Standard/ C&S/ L&T/ Siemens/ GE power/ ABB/ Switching Circuits/ KMG A to z Systems/ Sen & Singh Engineers/ Control Devices/ Technocrat Enterprises/ MDS/ Hensel/ Rittal/ Vidyut Control/ Risha Control/ Shivalic Power Control/ Neptune Systems/ Advance Panels & Switch gears

16 Electronic Smart Energy Meter

ABB/ Conzerv/ L&T/ Schneider/ Secure/ HPL/ Siemens/ Areva/ Satec/ Vision Tech

17

Ceiling Fan ISI marked, 5 star rated, copper winding, double ball baring 1200 mm, decorative type

Crompton/ Oriental/ Usha/ Polar/ Khaitan/ Bajaj/ Almonard/ GE/ Cinni/ CG



18 Exhaust Fan 300 mm, copper winding, Heavy duty metallic

Crompton/ Oriental/ Usha/ Polar/ Khaitan/ Bajaj/ Almonards/ GE/ Cinni/ Havells

19 Fresh Air Fans 200mm Crompton/ Oriental/ Usha/ Polar/ Khaitan/ Bajaj/ Almonards/ GE/ Cinni/ Havells

20 Under water light fittings/ lamps and accessories

Wipro/ Phillips/ CG/ Furtune Art/ Surya/ GE/ Havells/ HPL/ Syska

21 LED Lighting fixtures/ lamps/ tubes

Wipro/ Phillips/ CG/ Fortunearrt/ Surya/ GE/ Havells/ HPL/ Syska/ Bajaj/ Thorn

22

Indicating Meters

IMP/ AE/ Meco/ L&T/ Motwane/ Conzerve/ Rishab/ Secure/ ABB/ Siemens/ Emerson/ RAIL/ Toshniwal/ Enercon/ Kappa/ Schneider/ Fluke

23 G.I. Pipe Jyoti/ Asian/ Jindal/ Tata/ Swastik/ Zenith/ SAIL

24 Selector Switches Kaycee/ Salzer/ L&T/ Siemens/ BCH/ ABB/ Vaishno

25 Push Buttons/ LED Indicating Lamps

Essen/ Esbee/ Teknic/ Vaishno/ Siemens/ BCH/ L&T/ C&S/ Schneider/ Binoy

26 Bus Duct & Accessories C&S/ ECC/ Star Drive/ GE Power/ United Electric/ Unilec Engineers/ Siemens/ L&T/ ABB

27 Chemical Earthing Universal Earth Systems/ Ashlok/ Indellec



PART- E

LIST OF APPROVED MAKES

OF MATERIAL



NMDC LIMITED- HYDERABAD ENGINEERING DIVISION CIVIL DEPARTMENT

Li st of approved makes of items to be used for Civil & Structural work

Sl. No.

Name of Material/Product Recommended by the committee

1 Cement OPC- Grade 43 & 53 ACC, Ultra Tech , Birla make , Nagarjuna, Zuari, Sagar, J.K Cement, India Cement makes, Lafarge, CCI, Andhra Cement, Priya, Bharthi, Parashakthi, Coromandal, Ramco, Ambuja, JAY PEE, Mahashakti, Rajashree, Grasim.

2 Cement PPC & Slag cement Ultra Tech, Ambuja, JAY PEE, Mahashakti, J.K Cement, India Cement makes, Lafarge, CCI, Andhra cement, Coromandal, Ramco, Rajashree, Zuari, Grasim.

3 Reinforcement Steel SAIL, TATA steel, RINL, JSPL, JSW.

4 Structural Steel SAIL, TATA Steel, RINL, JSW, JSPL, ESSAR.

5 Galvalume Sheet (Pre-colour Coated) SAIL, Jindal, Bhushan steel, Colour roof (India) Ltd, Lloyd insulation, Japan metal building,Tata blue scope.

6 Anti-Termite Chemical for Treatment Mysode t Pvt Ltd, BAYER, Bombay chemicals, Hindustan insecticides chemicals, Pest Control (I)Ltd, NOCIL (DURASBAN TC), LUPIN (CLASSIC 20), MONTARI INDUSTRIES ( PYRAMID), CYNAMID (DURAMET), IPC.

7 Water stops (PVC/ Rubber) Omai Plastics, RC Enterprises, Pidilite, Basecon, Pask, Asian, Capnhans India, Fixopan Engrs.

8 Expansion Joint and Tarfelt Waterproofing

Shalitex, Tiki Tar Industries, Shalimar Tar Products, Lloyd Insulation, Pidilite

9 Stainless Steel materials for railing SAIL, Jindal

10 Poly-sulphide Sealants & Tapes GE Silicon, Bostik, 3M India Ltd, Pidilite, Tuffseal

11 Dash fastners Hilti, Fichtner, Canon

12 Admixtures,Injection Grouting & Epoxy Mortar

FOSROC, SIKA, ROFF, ACC, Mc-Bauchemi, Pidilite, SWC -Chryso, BASF, MYK, Choksey.

13 Special Chemical products for RCC Retrofication.

Krishna Conchem, Fosroc, SIKA, Pidilite, BASF, STP, FYFE & company.

14 Wire mesh Sterling Enterprises, Trimurty welded mesh, Jeetmal Jaimal, Chand Jain.

15 Non-Asbestos Poly sheet Everest, Ramco, Hyderabad Industries, Swastik, Visaka.

16 A/C Sheets Asbestos Cement Ltd (Everest), Charminar

17 Crane rails SAIL, JSPL-Raigarh.

18 Electrodes Ador (Advani Orlikon), ESAB, D&H Secheron

19 Non-Shrink grout Compound, SWC-Chryso, SIKA, FOSROC, STP Ltd, ACC.

20 Sealants SIKA, Ge Silicon, Bostik.



21 CGI Sheeting SAIL, Lloyds, Essar, TATA, Jindal.

22 FRP Translucent sheet Fiber Reinforced Plastics, Poly Projects, Mechem.

23 Polysulphide sealent Pidilite, Choksey, Fix bond.

24 Polyurethane Sealent Choksey.

25 Glass /Float glass/ Toughened glass Saint Gobain, Binani Industries, Modi Guard, Triveni, Hindustan, Asahi (AIS)

26 Mirrors Modi Guard, Atul Glass Works, Saint Gobain, Triveni, Aashi, Hindustan Pilkinton, Golden fish.

27 Flush doors shutters Kalptaru, Kothari door, Masonite, Century, Greenply, ALPRO, Indian Plywood, Kutty Flush Doors, Mysore Plywood Ltd, Northern Doors, Wood India, Sakthi Flush doors

28 Particle board. Novapan, Swastic wood, Duro

29 Block borads /Plywood Indian plywood Mfg, Nuboard, Mysore Plywood Ltd, Greenply, Century, Archidply, Alpro, Eco borad, National, Amul

30 Laminates / Veneer LM Lahari, Century, National, Greenply, Royal touch, Formica, Archidply, Merino

31 C.P Brass hardware fittings (wood works)

Ebco, ACME, Gem, Zoloto, Navjyothi, Dorma, Jyoti, Garg, Crown, Jayant Metal Manufacturing, Shalimar Hardwares, Everite, Godrej, Oxford, ARKAY.

32 Hardware Fittings (Door/Window ) Mouji, Lotus, Ashish, Asra, Jayanth Metal Manufacturer Co, Shalimar Hardware, Everite, Godrej, IMEX, OXFORD, ARKAY

33 Aluminum Sections Century Extrusions Ltd, Jindal, GALCO, Hindalco, Indal, Pennar, Ajit India, Alumilite.

34 Aluminium Fittings Doorex, Classic, DEEP, Aasra

35 Hydraulic Door Closures / Floor Spring & Door Lock.

Kelvin, Hyper, Godrej, Eddy, Everite, Hardwyn, Door king, Everest, Dorma, Dewan Industries, Ozone, Servax. Dorset, Arkay.

36 Steel Doors & Windows including fire rated doors

Madhu Industries, Sen Harvic, AGEW, Hopes Metal, Multiwyn, NCL Seccolor Ltd.

37 M.S. Rolling Shutters with or without Galvanising.

Standard, Shudwar, Vinayaka, Swastik Rolling Shutters, Hercules Rolling Shutters

38 Pressed Steel Door Frames Sen Harvic, Techome, Madhu Industries, Nishan Solid door frame (Solidor), Anjali enterprises, Sunbeam.

39 PVC/FRP Doors Sintex, Rajashri plastic, Thermodeck, Ambience, Akrosha, Plasopan, Nandini

40 Blinds Hunter Douglas, Marvel, Aerolux, Vista

41 Adhesive for wood work Dunlop, Fevicol, Vamicol, MRF

42 SS Hinges Godrej, Suzu.

43 Ceramic/ Rectified / Virtified Tiles Nitco, Kajaria, Somany, Johnson, Orient/Bell, Naveen, RAK, Regency, Simpolo, Varmora,



44 Terrazzo and exterior designer tiles Nitco, N EC, Bharat, Nimco, G.K.Bansal, Mahul, Ultra tiles, Stonecrete, Duracrete, Eurocon.

45 Concrete Paver Blocks Basant Belton, Adideep, Designers Bessers, Ultra, Stonecrete, Eurocon, Tuffstone, Earth pavers.

46 Gypsum False ceiling/ Panelling Gyproc, India Gypsum Ltd

47 Pre laminated Cement Bonded particle Board False ceiling

Armstrong, Aerolite

48 False floors Unitile, NMR Prefabs, Sintex

49 PVC tiles Wonder floor, Poly floor, Royal Touch, Bhor Industries, Premier Vinyl Flooring Ltd, Armstrong.

50 Metallic Floor Hardener Triveni Color Industries (Floornate), Heatly & Grasham, Derust chemical (Ferronite), Cement Research Corporation (Stilonite), Ironite, Ashford Formula

51 Interlock tiles/ precast Nitco, Unistone, Hindustan Tiles, Ultra, Duracrete

52 White Cement Birla white, J.K white.

53 Exterior paints / Water proof cement paints

Asian, Berger, Shalimar, Nerolac, Surfa Coats, Nitco, Hindustan colours & chemicals, Supreme, Jenson & Nicholson, Super snowcem, ICI, I-Can Nano, MRF.

54 Internal paint Asian, Berger, Kansai-Nerolac, Shalimar, I- can nano, ICI Paints, Jenson & Nicholson, British paints

55 Epoxy paint ICI, Kansai-Nerolac, Shalimar, Berger, Jenson & Nicholson, Asian paint, BASF.

56 Thermo Plastic Paints Shalime r, Auto mark, Asian, Berger, STP, Kataline.

57 Water proofing compound (Admixtures)

Pidi proof, Vamiplus, MYK, Mc-Bauchime, SIKA, Dr.Fixit-Pidilite, BASF, STP, Accoproof, Fosroc.

58 Cement based wall putty Asian, Birla wall care, J.K white, I-Can nano, Altek, Acqaproof, Italia.

59 Joint filler for ceramic tiles Roff, Pidilite, bal, laticrete, BASF

60 M.S. pipes Maharastra Seamless, Electro steel casting, SAIL, JINDAL SAW, TATA, ITC.

61 GI Pipes TATA pipes, Jindal, G.S.T, Swastik, Zenith, Ambica, Bharat, Surya Prakash, Indus tubes.

62 Soil, Waste & rainwater pipes &fittings PVC/UPVC/CPVC pipes

Premier, Sudhakar, Finolex, Astral-Flowguard, Kissan,Supreme, Prince, Reliance, Garware, Geroge Fisher, Godavari.

63 S.C.I Pipe & fittings confirming to IS 1729/3989

SRIF,RIFKO, KFAI, Kapilesh, NECO

64 C.I Pipe & fittings confirming to IS 1729/3989

Kesoram, Electro steel, NECO, TATA, SAIL, RIFKO, Electrotherm.



65 Stone ware (Salt Glazed) Pipes & Gully Trapes.

Mahakaushal, Swastic, Perfect, Burn, R.K, Hind

66 RCC Hume Pipes Indian Hume pipes, Pranali, Premier Prestressed Concrete, Pragati Concrete, Udyog, Patel Hume Pipes.

67 HDPE Pipes & Fittings Prince, Gautam, Premier, Gautam, Diplast, Sangir, NOCIL, PIL, CPE, Manikya, Hasti, Flowguard, Oriplast, Godavari, Maruthi. Hallmark, Vijay, Sangir, Sriram Polymers, Trustline, Dutron, RIL.

68 Ductile Iron pipes TATA-Kubota, Jindal Saw, Electro steel casting, Lanco Industries

69 Carbon steel Pipes SAIL, Jindal, Maharastra Seamless, BST, TATA, Zenith, PSL, RINL, Ratnamani

70 C.P Brass fittings (Plumbing) (General purpose)

GEM,Parko, Kingston, Jal, ARK, Parryware, Prayag, Lauret, MBM, Hindware, Esso, Seiko, Leader.

71 C.P Brass fittings (Premium class) Jaquar, MARC, Ess Ess, Parryware-Roca, Kohler, TOTO.

72 Sanitaryware & Flushing Cistern Hindware, Kohler, Parryware, Jaquar, RAK, Neycer, CERA, Johnson-peddar, Hindustan, Roca, Euro, TOTO, American standard.

73 Stainless steel kitchen sink Gilma, Dayana, AMC, Parryware, Prayag, Frank, Jayna, Neelkamal, Nirali, Diamond

74 PTMT fittings Prayag, Watertec, Shakti.

75 PVC Water storage tank Sintex, Ocean, Plasto, Everest, Polycon, Century, Premier, Kaveri, Chhattisgarh plasto.

76 C.I.Manhole cover & frame SRIF, RIF, NECO, IISCO, B.C, NEER.

77 SERC MH Cover K.K, S.K Precast concrete, Advent concreto vision

78 FRP/GRP Man hole covers Thermodrain, Rawji Industrial Corporation.

79 Pumps, Motors & Submersible Hydro pneumatic System

Beacon, Grundfos, Mather & Platt, Johnson, Flowmore, CRI, Sharp, Suguna, Texmo, Batliboi, Kishor, SU Motors, Kirloskar, Crompton Greaves, KSB, Weir, WP2, Worthington, Jyoti, Homa, Aqua, Dharani, ABS, Jasco,

80 Slurry Pumps Warman, Metson Minerals, MBE

81 Hydrants Firex, Upadhya valves, Minimax

82 Road safety accessories 3M India Ltd, Vertex India, Swar Flax.

83 Bitumen and Bitumen emulsion IOCL,HPCL, BPCL, Reliance, MRPL

84 Orifice plate Hydro Pneumatic, I.L, Microprecision.

85 Gun metal valves and copper alloy valve

Leader, Sant, Pratap, Kirloskar, SKM, Neta, Zoloto, Win, JAL



86 Sluice Valves, check valves Kirloskar, Leader, Zoloto, Shiva Durga, Indian valve, GDPA, Venus, Neta, BDK, Fouress, Audco, BHEL, IVPL, Inter valve, Dinesh, Jyothi, Aswan, GM valve, Emco, KCP, Batliboi, Jash, Yeshwant.

87 GM gate, Globe valves, Ball valves Neta, Sant, Leader, Zoloto, Keystone, Samsons

88 Globe valve (Cast steel) I.L, Fisher, Audco, R.K Control.

89 Air release valve Steam & Mining, Shiva Durga, Leader, padhyay, IVC, H.Sarkar, Fluid control, Fouress.

90 CI Gate valves Steam & Mining, Shiva Durga, Leader, Kirloskar, H.Sarkar, IVC, KBL, BDK, Durga, Fouress, L&T-AUDCO

91 GM Valves IVC, Steam & Mining, Shiva Durga, Leader, KBL, BDK, Zoloto, Sant, Neta

92 Check valve L&T-AUDCO, Fouress, IVC, Advance, Leader, BDK, KBL, NECO, Durga.

93 Landing valve New Age, Steel Age, ASCO, Vijoy Fire, Strumech

94 Float valve IVC, Steam & Mining, Shiva Durga, Leader, KBL, Upadhyay, H.Sarkar Navajyothi, Kohinoor

95 Butterfly valves L&T-AUDCO, Fouress, Keystone, BDK, IVC, TYCO, KBL, CRR, INTERVALVE, C&R, Crane Procees Control, Jash, Kirloskar, Vaas.

96 Hoses Senior, Inalasa, Bengal Industries

97 Strainer Otoklin, Superflow, Filtration Engineers, Boll & Kirch, Imetrol, IEMS, Crescent, Leader

98 Forged fittings NL Hazra & Sons, Chargeson, Shyam Engg.

99 Sprinkler system/Dry fog dust suppression system

TPS, F Harley, Kaveri, Enviro Tech, Docter Spraying System.

100 Compressor Kirloskar, ELGI, Ingersoll Rand, Atlas Copco

101 Pressure reducing valve Juneja, Danfoss, CIM

102 Brass Heavy duty foot valve Juneja, Danfoss, CIM

103 Flow Water meter-Magentic/ Ultrasonic

Aqumet , Capstan, Kranti, Anand, Endress & Hauser, Fisher Rosemount, Forbes Marshall, Yokogawa, Kronhe Marshall, Emerson, SBEM

104 Aluminium False Ceiling Hunter Douglass, Luxalon

105 Screws GKW, Nattlefold, Oxidised.

106 Adhesive Pidilite, fairmate, Bal Adhesive, Mc Bauchemie, Cementone India, Fosroc, Sunanda Speciality coating.



107 Aluminium Grills DECO, Alumnigrille

108 Anti-Stripping Agent Yuva, BE 100

109 Anti-Corrosive paint Krishna Conchem Products, CICO Chemisol Adhesive, Shalimar, Burger.

110 Strainer Otoklin, Superflow, Triveni, KEMS, Crescent, Dewrance, Hawa.

111 Screw Pumps (Positive displace/progressive cavity Type)

Roto, Ramo, Flosys, Alfa Helical, Tushaco, Hydro Prokav

112 Pump-Chemical dosing (Positive displacement Type)

Milton Roy, Swellore, Shapotools, Prominent, Sandur, Roto, Asia LMI, Metachem, Positive Matering, Seco, E-Dose.

113 Air Blowers Turbomax, Korea fluid Machinery Co Ltd.,Dahea Engg Co.Ltd., Siemens, Usha, Everest, Kay, KPT, Beta, Swam.

114 Air Compressor Ingersoll rand, ELGI.

115 Fine Bubble Membrane Diffusers EDI, OTT, Rehau.

116 Chlorinators Mertito, Chloro Control, Industial devices, Pennwalt.

117 Submersible mixers ABS, Grundfos.

118 Agitators Dorr-Oliver, Voltas, Emco, KCP, Batliboi, Shivpad, Fibre & Fibre, Standard Engineers, Helx, Thermax, Remi, Padmatech, Fontus.

119 Centrifuge Alfa Laval, pennwalt, Humboldt.

120 Chain Pulley Block, Electrical Hoist, JIB Crane.

Elephant, Hercules, WMI, Indef.

121 S S Pipes Jindal, Lloyds, Zenith, Remi, Prakash.

122 Pressure Gauges H.Guru, Gluck, Waree, General Instruments, Gluck

123 Mechanical Deep & Fine screen Jash, Johnson, Thermax.

124 Girt Separator Thermax, HE, Eimco KCP, Ganesh Engineering.

125 Centrifuge Humblodt(India), Alfa Laval, Hiller India.

126 Gas Chlorinator Capital Controls, Toshcon Jesco, Penwalt, Perfect Chloro, IEC Fabchem, Banaco, Metito.

127 Level switches Pune Techtrol, SBEM, Levecon.

128 Sludge Transfer Pump Kirloskar, ITT, Wilo.

129 Filter Feed Pump Kirloskar, Johnson.

130 Air diffusers Southern Cougen, Aquaflex.



PART- F

TENDER DRAWINGS

Elevation view of Barracks for Sub officers (SO`s) -14x4=56 staff`s

G.FLOOR

0.6

I. FLOOR

II FLOOR

3.4

53

.4

53

.4

5

Corridor 1.50m wide

Stair

V

W

Corridor 1.00m wide

W

WWW

WW

7.0

6

12

11

3m wide

Toilet

1.2x1.8

Attach

Room-5

W

5mx4m

10

9

Room-4

W

87 Toilet

1.2x1.8

Attach

Room-3

W

5mx4m

6

5

Room-2

W

5mx4m

43

Toilet

1.2x1.8

Attach

Room-1

W

5mx4m

21

III FLOOR

3.4

5

Typical floor plan of Barracks for Sub officers (SO`s) - 56 staff``s (7 roomsx 2 staff`s x 4floors)

Unit builtup area =11.66sqm & unit circulation area=8.70sqm, Floor builtup area=292 sqm Total builtuparea=1168 sqm

Toilet

1.2x1.8

Attach

V

Room-7

W

5mx4m

W

14

13

Co

rrid

or 1

.0

0m

w

id

e

Sh

elf

Joinery details :-

W - 1.50 X 1.50

D1 - 1.00 X 2.40

D2 - 0.75 X 2.40

V - 0.60 X 0.90

41.38

Sh

elf

Sh

elf

Sh

elf

V

V V

V

D2

Tender purpose only NOTE :-All dimensions are metres unless otherwise noted.

D1

D2

D2

D2

D1

D1

D1

Toilet

1.2x1.8

Attach

5mx4m

Sh

elf

D1

D2

Room-6

Toilet

1.2x1.8

Attach

5mx4m

Sh

elf

D1

D2

Toilet

1.2x1.8

Attach

Sh

elf

D1

D2

V

Elevation view of Barracks for Other Rank officers (OR`s) -144 units (36 unit x4 floor)

G.F G.F

I FLOOR

II FLOOR

III FLOOR

3.4

53

.4

53

.4

53

.4

5

Stair

Passage 1.50m wide

1 2

3

45

10 11

12

1718

2829 30

3132

33

34

35

Corridor 1.50m wide

Corridor 1.50m wide

Stair

11

.1

6

54.34

3mx 8m

3mx 8m

Passage 1.50m wide

39m x 7.50m

2x1.25m

6 7 8 9

161514

13

36

D

D

D2

2x3m

1920

21 22 23 24 25

26 27

3.1

5

Typical floor plan of Barracks for Other Rank officers (OR`s) -144 units (36 unit x 4floor)Unit builtup area=16.23 sqm & unit circulation area=6.02 sqm, Floor builtup area = 606 sqm,Total builtup area= 2424sqm, Total =2 buildings x 144 units = 288 units

2x1.1m

Bath&WC

D2

D2

D2

Joinery details :-

W - 1.50 X 1.50 16 Nos

D1 - 1.00 X 2.40

D2 - 0.75 X 2.40

V - 0.60 X 0.90

D - 1.50 X 2.40

D

1

D

1

D

1

D

1

D2

D2

D2

D2

1.0X0.45X1.2m

Steel racks

v

v

v

v

v

v

v

v

v

v

v

v

2x1.1m

2x1.1m

2x1.1m

Tender purpose only

up

up

W

W W

W W W

W W

W W W

W W

W W

W W

W

2x1.1m

2x1.1m

2x1.1m

2x1.25m

Bath & WC

Bath & WC

Bath & WC

Bath & WC

Bed 1mx2m

Bath&WC

Bath&WC

Bath&WC

1

NOTE :-All dimensions are metres unless otherwise noted.

3.00

3.59

3.75

10.43

14.26

GROUND FLOOR - MESS KITCHEN

COOKING AREA

MD

D1

D

1

STORE

STORE

Platform

FIRST FLOOR-MESS DINING

1.5025

1.5000

1.5000

0.9000

Platform

1.5025

0.9000

1.5025

0.9000

1.7000

Wash Platform

Platform

Shelf 450 wide

UP

3.00

1.2

UP

Shelf 450 wide

Shelf 600 wide

Shelf 600 wide

Shelf 600 wide

W1

W1

W1

W1

W1

W1

W1

D1

W1

W1

W1

1

2

3

A

B

C

D

E

5.00

3.00

3.59

3.75

10.43

14.26

MD

3.00

UP

3.00

1.2

1.2

UP

W1

W1

W1

W1

W1

W1

W1

D1

W1

W1

W1

1

2

3

A

B

C

D

E

1.5

1.5

pantry

Plate Platform

EWC

1.2x1.5

Urinals

1.5x1.5

Wash basin

DINING HALL

SC gate

W1

Lobby

4.77 x3.0

FRONT ELEVATION

3.6

3.6

2.4

2.4

1

3

5.00

5.00

Area details :-

Ground floor - 150 sqm

First floor - 150 sqm

Total building Area - 300 sqm

JOINERY DETAILS :

MD - 2.00 X 2.40

SCG - 2.00 X 2.40

W1 - 2.00 X 1.50

W2 - 1.00 X 1.50

D 1 - 1.00 X 2.40

D2 - 0.75 X 2.40

V - 0.50 X 0.90

NOTE :

1. All dimensions are in Metres unless otherwise noted.

2. Roof height shall be 3.60m and Lintel height is 2.40m (bottom of beam).

W2

W2vv

v

D2

D2

NMDC LIMITED - AWS

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Transcript of NMDC LIMITED - AWS