Renovation of pipe line and Allied works of 01 no. DTW under Ranaghat-I Block of Nadia District under Kalyani (AI) Division under Core-Sector Program for the Financial Year 2025-26.

PART - A:- Laying and Maintenance of WTA system for DTW Centre :- Dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. In ground floor including roof. (a) upto 150 mm. thick

Dismantling all types of masonry excepting cement concrete plain or reinforced, stacking serviceable materials at site and removing rubbish as directed within a lead of 75 m. a) In ground floor including roof.

Earth work in excavation of foundation trenches or drains, in all sorts of soil (including mixed soil but excluding laterite or sandstone) including removing, spreading or stacking the spoils within a lead of 75m. as directed. The item includes necessary trimming the sides of trenches, levelling, dressing and ramming the bottom, bailing out water as required complete. (a) Depth of excavation not exceeding 1,500 mm.

Single Brick Flat Soling of picked Jhama bricks including ramming and dressing bed to proper level and filling joints with local sand.

Hire and labour charges for shuttering with centering and necessary staging upto 4 m using approved stout props and thick hard wood planks of approved thickness with required bracing for concrete slabs, beams and columns, lintels curved or straight including fitting, fixing and striking out after completion of works . (a) 25 mm to 30 mm thick wooden shuttering as per decision & direction of Engineer-In-Charge. ( Upto roof of ground floor )

Ordinary Cement concrete (mix 1:2:4) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement,if any, in gound floor as per relevant IS codes. a) Pakur Variety

Brick work with 1st class bricks in cement mortar (1:6) (a) In foundation and plinth(G.Floor)

125 mm. thick brick work with 1st class bricks in cement mortar (1:4) in ground floor.

Plaster (to wall, floor, ceiling etc.) with sand and cement mortar including rounding off or chamfering corners as directed and raking out joints including throating, nosing and drip course, scaffolding/staging where necessary (Ground floor).[Excluding cost of chipping over concrete surface] (i) With 1:6 cement mortar (a) 20 mm thick plaster [Gr floor )

(b) 15 mm thick plaster [Gr floor )

Neat cement punning about 1.5mm thick in wall,dado,window sill,floor etc. NOTE:Cement 0.152 cu.m per100 sq.m.

Carriage of Departmental materials from the Deparmental Store to the work site and return back the damaged/replaced and unused materials to store including loading & unloading complete at both sides by Tempo/Van Rikshaw/Mini Truck etc. upto 25 Km distance in one way. i) For Delivery pipe, Surge Tank, Bend, Valve etc.

Earth work in excavation of field trenches as per designed section & alignment for laying of pipe lines (PVC, RCC, ACP etc) upto a depth of 1500 mm in all sorts of soils including removing, spreading or stacking extra earth as directed. The item includes necessry trimming of sides trenches, levelling, dressing and ramming the bottom as required complete.

Bailing out of water from excavated trenches that comes out from the leakages/burst pipe line during repairing works of minor / major leakages and replacement of damaged PVC pipe/tee/bend and chockage clearance of PVC pipe line etc. by means of bucket or any other means necessary and to make the excavated trenches suitable for repairing works etc. of pipe line.

Dismantling the existing G.I./M.S. Delivery Pipe line connection between the existing D.C./Surge Tank/Tripod Set & Tube Well assembly viz Sluice valve, Bend, Surge Tank/Distribution Chamber /Tripod Set Connection pipe etc.and disconnection of delivery side viz. Special bend etc. all complete as per direction of the E.I.C. and stacking all serviceable materials at site.

Laying and joining of R.C.C. spun pipes with matching collars of different sizes mentioned below in field trenches including handling and carrying the pipes and matching R.C.C. collars from field stack, lowering the same within the trench, property positioning and levelling on bricks laid flat, filling the annular space between collar and the pipe joint with Jute braiding dipped in cement slurry, grouting with cement and sand mortar (1:2) mixed with approved quality water proofing compound (5% by weight of cement) including cost of cements, bricks for levelling, jute braiding etc.) and curing all complete as per direction of Engineer-in-Charge. (i) 1830mm. long 225mm. dia ( extention )

Taking out the damaged R.C.C. Pipe and two collars by dismantling two joints carefully, carrying and stacking the same near the pump house, carrying new pipe and collars from the field stack, lowering the same within the trench, properly positioning and levelling on bricks laid flat, between collar and the pipe joints with jute braiding dipped in cement slurry, grouting with cement and sand mortar (1:2) mixed with approved quality water proofing compound (5% by weight of cement) and curing all complete as per direction of Engineer-in-Charge. i) 225 mm dia. R.C.C. Pipe.

Taking out the damaged R.C.C. Tee and 3 nos. collars by dismantling three joints carefully, carrying and stacking the same near the pump house, carrying new R.C.C. Tee and collars from the field stack, lowering the same within the trench, properly levelling and positioning on bricks laid flat, filling the annual space betwen pipe fitting and collars with jute braiding dipped in cement slurry, grouting with cement and sand mortar (1:2) mixed with approved water proofing compound (5% by weight of cement) and curing etc. complete as per direction of Engineer-in-Charge. (i) 225 mm × 225 mm × 150 mm R.C.C. Tee.

(ii) 225 mm × 225 mm × 225 mm R.C.C. Tee.

Taking out the condemmed 150 mm dia. N.T.P./T.P./ Alfa-Alfa valve from 150 mm dia. M.S./G.I. pipe of existing spout chamber by careful chiseling with least disburbance to the existing system of structure upto required limit and fitting, fixing of new one with 150 mm dia. M.S./G.I. pipe in proper position of the spout chamber using havoc zinc jute so as to make the joint leak proof including mending good all damages and returning back the condemned materials at store as per direction of Engineer-in-Charge.

Removing of Chokage due to sludge, mud, sand or any other forign materials deposition from the underground 450 / 300 / 225/ 150 mm dia. R.C.C. Pipe Line with split bamboo, wire brush, coir rope etc. along with suitable cleaning agent as ecessary as per direction of E.I.C. (This item includes cost of earth cutting & back filling of trenches and required materials for cleaning but excluding the cost for taking out one full length of RCC Pipe by dismantling of 2 nos. of Collars & refitting the RCC pipe with new two nos. collar). i) For 225 mm dia. RCC Pipe

Repairing of leakages in collar joints of R.C.C. Pipe line by opening the joints fully by chipping out the old morter, cleaning the pipe recesses and collar properly, and thereafter positioning and levelling the pipes and collar, filling the annual spaces of joints with jute braiding dipped in cement slurry and grouting with (1:2) cement morter mixed with approved quality water proofing compound (5% by wt. of cement) and curing all complete as per direction of Engineer-in-Charge. (a) 225 mm dia. R.C.C. Pipe.

Jointing the under mentioned R.C.C pipe fittings(pipe line specials) in the R.C.C pipe line with matching R.C.C Collars including handling and carrying fittings and matching R.C.C Collars from field stack, lowering in the trenches properly leveling and positioning on bricks laid flat, filling the annular space between pipe fitting and collars with jute braiding dipped in cement slurry, grouting with cement and sand mortar(1:2) mixed with approved water proofing compound(5% by weight of cement0 and curing etc. complete as per direction of the Engineer-In- Charge(cost of bricks for leveling and jute braiding are included). (i) 225 mm × 225 mm × 225mm R.C.C. Tee.

(ii) 225 mm × 225 mm × 150mm R.C.C. Tee.

Labour Charges for fitting, fixing and laying, where necessary of following M.S / G.I. / E.R.W. pipes and accessories (to be supplied departmentally) including transportation of the same cutting, threading, jointing and making leak-proof threaded / flanged joint at site, by using socket / rubber insertion, nuts and bolts etc. maintaining proper alignment and level - all complete - as per direction of Engineer-in-Charge. (i) 150mm. dia. C.1.sluice valve

Earth work in filling in trenches after laying pipe lines (PVC, RCC, ACP etc) with good earth obtained from excavation of field trenches in layers not exceeding 225 mm, ncluding watering & ramming etc. layer by layer complete. (Payment will be made on the basis of measurement of finished quantity of work.)

Add Water transmission arrangement @ 3% Except item no-1, 2, 3,,12,13,14 & 26 :-

Add GST @ 18% :-

Add Cess @1% :-

PART-B :- Internal Wiring & Installation of Pump set of DTW Centre :- Supplying & fitting E.I danger board on wall. 20 cm x 30 cm (8" x 12")

M.S. Structural works….less than 22.50kg/m

Meter loop connection with 1.1 K.V. Gr. 3½ core 25 sq. mm. P.V.C insulated & sheathed and armoured cable from Meter to incoming Main Switch/Terminal alluminium cable

Earthing with 50 mm. dia GI pipe 3.64 mm thick × 3.04 mts long and 1 × 4 SWG G.I. (Hot Dip) wire (4 mts. Long), 13 mm dia. × 80 mm. long G.I. bolts, double nuts, double washers including supplying and fixing 15 mm. dia G.I. Pipe protection (1 mt. long) to be filled with bitumen, partly under the ground level and partly above the ground level, driven to an average depth of 3.65 metre below the ground level and restoring the surface duly rammed as below: (For soft soil). i) By ISI-Medium GI pipe

Supplying and fixing earth busbar of galvanized (Hot Dip) M.S. Flat 25 mm × 6 mm on wall having clearance of 6 mm. from wall including providing drilled holes on the busbar complete with G.I. bolts, nuts, washers spacing insulators etc. as required.

Connecting the equipments to earth busbar including supplying and fixing G.I.(Hot Dip) Wire of size as below on wall/floor with stapples buried inside floor/wall as required and making connection to equipments with bolts, nuts, washers, cable, lugs etc. as required and mending good damages. No. 8 SWG

Supplying, and fixing sheet steel Main Switchs on Iron legs on wall 240 Volt D.P. with fuse on L & N, 15/16 Amps Havells. .

Distribution wiring in 1.1 KV single core stranded 'FR' PVC insulated & unsheathed copper wire (Brand approved by EIC) in 20mm size PVC rigid conduit 'FR' (Precision make) incl. necy. fittings as requiredWiring in 1.1 KV grade single core stranded 'FR' PVC insulated and unsheathed copper wire (approved make) of following sizes PVC casing-caping (Precision make) incl. necy. PVC clips, fittings, etc. 2 x 84/0.3 (6 sqmm) + 1 x 56/0.3 (4 sqmm) ECC

Distribution wiring in 1.1 KV grade 2x 22/0.3 (1.5 sq mm) single core standard 'FR' PVC insulated and unsheathed copper wire (approved make) in suitable size PVC casing-capping (Precision make) with 1x22/0.3(1.5sqmm)single core standard 'FR' PVC insulated & unsheathed copper wire for ECC, to light/fan/call bell points with Piano Key type switch fixed on sheet steel fabricated switch board with bakelite/perspex (wall matching colour) top cover 3 mm thick on wall including necessary connections and making earthing attachment and mending good the damages to building works. A) average run 8 mts

Distribution wiring in 1.1 KV grade 22/0.3 (1.5 sq mm) single core standard 'FR' PVC insulated and unsheathed copper wire (approved make) in suitable size PVC casing-capping (Precision make) with 1.1 KV grade 1 x 22/0.3 (1.5 sqmm) single core stranded 'FR' PVC insulated & unsheathed copper wire for ECC including necy. PVC clips, fittings, etc. to 5A 3 pin flush type plug socket & Piano Key type switch (Anchor make) fixed on steel fabricated M.S. C.R.C.sheet metal (16 SWG) switch board cum J.B on wall including bakelite/perspex (wall matching colour) top cover 3 mm thick flushed in wall by housing the board after cutting brick wall incl. necy. connection making earthing attachment and incl. painting the MS box and mending good the damages to original finish of building works. [PVC casing-capping and plug box both on surface] A) On Board

Angular batten holder…….wall/cutting.

Supplying and fixing bulk head light fitting (Havells make) on wall /ceiling including S&Fsuitable for 100 watt lamp complete with glass wire-guard and holder

Fixing only Iron Clad / Sheet Steel Main switches /Isolators on Iron Legs/Flat Iron Frame/Angle Iron Frame on wall. a) 63 Amps On angle iron frame 500V DP

b) 25 H.P Oil Immersed Starter

Fitting & fixing of Pump Controller (12.5 HP to 25 HP capacity) of size 950 mm x 1000 mm x 450 mm over iron legs (600 mm height) on floor with 150 mm thick Cement Concrete (4:2:1) block and making necessary tion with the electrical cables as per direction of the E.I.C. (excluding cost of Cement Concrete) i) Above 20 HP & UPto 25 HP

Distribution wiring in 1.1 KV single core strandaed 'FR' PVC insulated & unsheathed copper wire (approved make) in 20 mm size PVC rigid conduit 'FR' (precision Make) incl. necy. fittings as required in 2 x 36/0.3 (2.5 sqmm) + 1 x 22/0.3 (1.5 sqmm) ECC in 20 mm Rigid conduit ( Domestic Main Switch Loop connection from pump controller to domestic Main Switch.)

Add @ 3% except I- 33, 44 & 45

Add GST @ 18% :-

Add Cess @1% :-

PART-C:- Procurement of materials for Renovation of pipe Line of DTW Centre :- Supply of 150mm dia C.I Alfa-Alfa valve -nipple type ( Type-C)as per specification (IS 210)

150 mm Nominal size (PD) ISI marked Sluice Valve Pressure Designation P.N. 1.6 with Hand Wheel for water works purpose, C.I. Flange type conforming to IS-14846/2000 with amendment no. 1 & 2. Components/parts of Sluice Valve shallbe manufactured from basic materials given in table-1 of IS-14846/2000 with amendment no. 1 & 2. The Valve shall be tested for (Close End Test) against hydrostatic test requirement.

Nuts & Bolts (G.I) :- Supplying, fitting and fixing the following materials at site - a) 20 mm x 100 mm nuts and bolts having approved standard thread approved make or 16 mm x 80 mm nuts and bolts or as per direction of Engineer-in charge

Supply and delivery of manually operated heavy duty Oil Immersed StarlDelta Starter with 12 Nos fixed & 6 Nos. moving contacts with 3 magnetic over load release with dash pot time lags and under voltage release suitable for use with 380/415 volts, 3 phase, 50 Hz, A.C. supplyand generally conforming to IS: 13947 Part-4 (Sec-l/ 1993for 17.5/20 H.P

Supplyand delivery of Sheet Metal Enclosure 415 volt, 3 Phase,50 Cycles(Hz)with rewireable type T.P. Fuse T.P.N Main V Switch 63 Amp A.C. conforming to IS: 13947 Part-3/1993 .

Supply of 4 inch round projection type Ammeter ( Range 0 - 50/100 amps ) MIAC. Accuracy within ( +/-) 1.5% and conforming to IS : 1248/1968. BMC make.

Supply 4 inch round Projection type Voltmeter (range 0 - 500 Volts), MIAC, Accuracy within ± 1.5% and conforming to IS: 1248/1968. BMC make

b) 150 mm dia rubber insertion with standard 8 Nos. drilled hole equally spaced (5 mm thick, reinforcement 2 Ply) as per I.S.I. 638 - 1965

NP-2 class 225 mm bore dia R.C.C spun pipe of length 1.83 Mtr, thickness 25 mm with matching collar as per IS: 458/1988 with latest amendments thereof including all taxes and transportation cost, etc.

NP-2 class 225 mm bore dia R.C.C Collar of length 0.15 mtr., thickness 25 mm as per IS: 458/1988 with latest amendments thereof including all taxes and transportation cost, etc.

NP-2 Class 225 mm x 225 mm x 150 mm dia. R.C.C Tee of lenth 0.90 mtr. For 225 mm bore dia sides and 0.20 mtr. For 150 mm bore dia side as per IS : 458/1988 with amendments thereof.

NP-2 Class 225 mm x 225 mm x 225 mm dia. R.C.C Tee of lenth 0.90 mtr. For 225 mm bore dia sides and 0.20 mtr. For 150 mm bore dia side as per IS : 458/1988 with amendments thereof.