Construction of water supply system for the residential complex at Pamphok, Teesta-VI HE Project, South Sikkim

Amount

Providing lowering and installing 3-phase, 5.0 HP submersible pump with provision of installation of electrical 3-phase starter along with submersible insulated 3 core cable 2.5 Sq.mm. along with G.I. cover at the top of 6” dia along with G.I. clamp. (Pump set Make-Crompton, Greaves/Kirloskar/Equivalent or as per direction of Engineer-In –Charge.

Providing, fitting and lowering of 38 mm. dia. CPVC column pipe with safety steel wire (8mm. dia).

Excavation in soil in hilly area by manual means including cutting and disposing of excavated earth with all lifts and lead upto 50 mtrs.

Providing, fitting and fixing GI pipe of medium class, (excluding trenching, refilling, compacting and the cost of fittings) all complete: 40 mm. Dia.

Providing and fixing Chlorinated polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.0 m. spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer-in-Charge. Internal work-Exposed on wall : 25 mm. nominal dia pipes.

Providing and fixing PPR Unions: 40mm

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :40 mm nominal bore

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete :25 to 40 mm nominal bore

Providing and fixing gun metal non- return valve of approved quality (screwed end) : 40 mm nominal bore Horizontal

Providing, fixing & removing form work for casting R.C.C items as indicated below: with locally available timber) Foundation, footings, base of column etc. for mass concrete wall.

Providing and Laying Plum concrete in 1:2:4 c.c. (1cement, 2coarse sand, 4clean hard graded stone chips of 20 mm down nominal gauge) with 70% clean hard stone of sizes not exceeding 15cm including shuttering, compacting and curing complete, as per the direction of Engineer in Charge.

Providing and Laying in position specified grade of reinforced cement concrete excluding the cost of form work, finishing and reinforcements. 1:1:2 (1 cement: 1 coarse sand : 2 graded stone aggregate 20mm and down nominal gauge size)

Supplying, bending and placing in position tor- steel reinforcement in all R.C.C works including cost of Qtl 12.37 binding wires, all complete.

Providing and Laying 15mm thick cement plaster of specified mix in single coat including finishing even and smooth and curing etc all complete. 1:4 mix.

Neat cement punning.

Providing and fixing H.P. or L.P. ball valve with polythene floats: 25 mm dia

DEO KUMAR PRADHAN