Provision of lightning conductor with chemical earthing for protection during lightning at different locations of Jharkhand OC Project under Hazaribagh Area

Amount

Supply and fixing of lightning conductor(having 5 spikes at top with base metal plate including complete set)

Supply & fixing of support insulator

Erection of metallic pole of above 10.00 metre and up to 12.00 metre length in cement concrete 1:3:6 ( 1 cement: 3 coarse sand:6 graded stone aggregate 40mm nominal size) foundation including excavation and refilling etc. as required.

Supply and erection of approved make safe earthing electrode consisting pipe-inpipe technology as per IS 3043-1987 made of corrosion free G.I. pipes with constant ohmic value surrounded by highly conductive compound with high charge dissipation suitable for effective and maintenance free earthing in earth pit of minimum bore dia. 150mm size, as mentioned below : With 3 metre G.I. pipes having outer pipe dia of 50mm having 80-200 micron galvanizing, Inner pipe dia. of 25mm having 200-250 Micron galvanizing, connection terminal dia. of 12mm in nominal soil with 50 kg (two bag) back filling bentonite compound UL listed and confirm to relevant International/Indian standards around electrode upto ground level

Providing and laying G.I. tape 32 mm X 6 mm from earth electrode directly in ground as required.

Supplying 50 mm X 8 mm M.S flat iron pole top bracket/ cross arm for single 11/22/33 KV over head line conductor compkete with fixing clamps, bolts, nuts and washers drilling holes for insulator pins, bolts and nuts etc and painting with primer and finish paint as required.(Excluding reusable dismantled channel iron)

Erection of angle iron/channel iron cross arm on wood/RCC/PCC/Steel tubular/rail pole etc. as required.

Total impact of GST for the purpose of CTC

M/s Achal Electricals

M/S VAISHALI ELECTRIC COMPANY