Tender for providing necessary earthing arrangement at 33/11 kV 2x10 MVA Sub-station Chamba to improve the earthing results of said sub-station under ESD HPSEBL Chamba No-I under ED Chamba.

Description of Material

Digging of earth pit 3.15 meter deep (not exceeding 2 m in width or 15 sqm on plane) earthpit for 4 No. Pipe Type electrodes earthing, excavation by manual means including dressing of sides and ramming of bottom lift up getting out surplus excavated soil as directed within a lead of 50 m all kind of soil, complete pit for 4 Nos. pipe electrodes for earthing

Fixing of solid earth rods with earth Mat

Filling of earth excavated pits for earth rods, earth pits to be done with charcoal & salt preparation of demanded pits for later treatment for pipe

Providing G.I. Pipe 3mtr long 50 mm dia with holes of 16 mm dia at 150 mm from centre to centre for 2 m Distance from bottom plus Workshop charges @ 5 %

Providing MS Plates 150x150x6 mm for 4 connections

Providing 50x6 mm MS Flat connection with Mat to Mat

Providing MS Flat for connection with old connection Flats with Welding of risers and corrosion protection @ 5% for connection with old connected flats

Providing Chequred plate covers 500X500X6

Providing GI wire 6swg for screening

Providing Nuts and bolts galvanised 16 mm dia, 50 mm long

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