46/MWEEE-I/2026-27/TC Item no.2

Supplying, Installation, testing and commissioning of earth pit of minimum dia. 150 mm size 3 mtr. Deep in hard rock soil, through machine or by any suitable means. Earth electrode consisting of 3 mtr. Long and 80 mm Dia. Size G.I electrode surrounded by highly conductive black fill compound chemical 2 bags (25 kg each) with necessary masonry encloser for 300 mm x 300 mm size GI earth pit cover complete as required.

Providing and laying earth connection from earth electrode with 4.00 mm dia copper wire in 15 mm dia G.I. pipe from earth electrode including connection with copper thimble excavation and re-filling as required.

Providing and fixing 4.00 mm dia copper wire on surface or in recess for loop earthing as required

Supplying and fixing of following sizes of steel conduit along with accessories in surface/recess including painting in case of surface conduit, or cutting the wall and making good the same in case of recessed conduit as required. 32 mm

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

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

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required.

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement : 4 coarse sand)

supplying and fixing mild steel chequered plate 6 mm thick on cable duct complete all respect as required at site