Providing and installation of Advance lightning Protection system to protect critical electronic equipment of 08 Nos. of Road Weighbridges installed at different locations of Johilla Area

Erection of steel tubular or rail pole strut 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 secured with holding clamps, bolts, nuts, etc. as required.

Supplying and erection of stay set complete (galvanised) with19/20 mm dia X 1.8 metres long stay rod, anchor plate of size45 cm X 45 cm X 7.5 mm, thimble, stay clamps, turn buckle ( 20mm X 60 cm ), 7/ 3.15 mm dia G.I. stay wire and strain insulatoretc in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6graded stone aggregate 40 mm nominal size ) foundation including excavation and refilling etc. as required.

Supplying and erection of galvanised ‘D’ iron clamps complete with shackle insulator (75 mm X 90 mm),G. I. bolts, nuts and washers, coach screws etc. as required.

Providing and fixing of lightning conductor finial made of 18mm dia 500mm long bright nickel plated copper tube tapered having single prongat top with bright nickel plated brass base M10 for connection and intersection of flat or round conductor including holes, clamp complete as required.

Supply and erection of approved make safe earthing electrode consisting pipe-in-pipe technology as per IS 3043-1987made 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 2 metre G.I. pipes having outer pipe dia of 50mm having 80-200 micron galvanizing, Inner pipe dia.of25mm having 200-250 micron galvanizing, connection terminaldia. Of 12mm in nominal soil with 25 kg (one Bag) back filling bentonite compound UL listed and confirm to relevant International/Indian standards around electrode upto ground level

Supply and drawing PVC insulated copper cable (earth continuity conductor) of green colour FRLS with copper multi strand conductor ISI mark in existing conduit alongwith otherwires as required as per specification 16 sq. mm.

Removing of old paint from steel and other metallic surface and making surface even

Primer coat over new steel and other metallic surface with red oxide zinc chromide paint complete with supply of material labour etc. including preparation of surface.

Primer coat with aluminium paint, brushing complete with material and labour including preparation of surface