NHPC Limited Tender

Providing and fixing precoated galvanised iron profile sheets (Size, shape and pitch of corrugation as approved by Engineer-in-Charge) O.50mm+/• 5% total coated thickness (TCT), Zinc coating 120gsm as per IS: 277 in 240 rnpa steel grade5-7 microns epoxy primer on both sides of the sheet and polyester top coat 15-'18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self-drilling/self-tapping screws of size (5.5 x55mm) with EPDM seal or with polymer coated J or L hooks, bolts and nuts 8mm diameter with bitumen and G.1. limpet washers or with G.1. limpet washers filled with white lead complete upto any pitch in horizontal/ vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required

Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+1- 5 %) total coated thickness(TCT), Zinc coating 120 grams per sqm as per IS 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self-drilling/ self-tapping screws or with polymer coated Jar L hooks, bolts and nuts and Gr:Seam bolts, and nuts,GI plain and bitumen washers complete

Providing and fixing frame work for partitions! wall lining, etc. made of 50x50x1.6 mm hollow MS tube, placed along the walls, ceiling and floor in a grid pattern with spacing @ 60cm centre to centre both ways (vertically & horizontally) or at required spacing near opening, with necessary welding at junctions and fixing the frame to wall ceiling! floors with steel dash fasteners of 8 mm dia, 75 mm long bolt, including making provision for opening for doors, windows, electrical conduits, switch boards etc., including providing with two coats of approved steel primer etc. complete, all as per direction of Engineer-in-charge.

Providing and fixing thermal insulation of ceiling (under deck insulation) with Resin Bonded Fibre glass wool conforming to IS: 8183 density 24kg/cum, 50mm thick, wrapped in 200 G Virgin Polythene bags fixed to ceiling with metallic cleats (50x50x3mm) @ 60cm clc and wire mesh of 12.5mm x 24g wire for top most ceiling of building.

Providing and fixing hard board ceiling, sheet of approved quality with necessary nails etc. complete (frame work to be paid separately) Standard Quality board 4mm thick