Making of 4 no maintenance free chemical earth pit and earthing screen at colliery magazine under Urimari OCP.

Amount

Erection of metallic pole of above 10 Mtr and upto 12.00 Mtr length in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation and refilling etc. as required.

Supplying and erection of stay set complete (galvanised) with 19/ 20 mm dia X 1.8 metres long stay rod, anchor plate of size 45 cm X 45 cm X 7.5 mm, thimble, stay clamps, turn buckle ( 20 mm X 60 cm ), 7/ 4.00 mm dia G.I. stay wire and strain insulator etc in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size ) foundation including excavation and refilling and also with 0.6m long brace of size 50mm x 50mm x 6mm angle iron with 50mm dia pulley fixed at one end of the brace as required.

Supply and erection of pure copper lighting arrestor 9.2 mm dia and 915mm in length with 5 spikes and base plate 8.5 X 8.5 cm

Supply and Erection of 11KV Disc Insulator for 11KV overhead lines with galvanized insualtor fittings, ball and socket type and complete with galvanized strain clamps, bolts, washers and nuts etc. as required.

Armoured Copper cable 16 sq mm single core

Excavation of the cable trenches in hard rock not exceeding 1.5 mtrs in width and lift upto upto 1.5 mtrs including getting out the excavated soil and disposal of excavated soil as directed with in a lead of 50 mtrs.

Providing and installation of maintenance free chemical earthpit dia 60mm, 3mtr long

Copper wire 8 SWG for Earthing Screen

Labour charge for drawing/erection of of copper wire for screening(including supply of materials)

Providing and fixing of GI tape 20mm x 3mm thick on parpet of surface/ wall for lightning conductor (for vertical run)

Providing and fixing of testing joint made of 20mm x3mm thick GI strip 125mm long with 4 no of GI bolts,nuts and spring washers etc complete as required

Supply and installation of Post Insulator

Supplying and erection of galvanised D iron clamps complete with shackle insulator(100mmx 110mm) GI Bolts, nuts and washers,coach screws etc as required.

Jointing Copper/ GI tape (with another copper/GI tape, base of the finial or any other metallic object) by riveting/nut bolting/ sweating and soldering etc as required.

Loading and unoloading of metallic poles(truck will provided departmentally

Total impact of GST for the purpose of CTC