Providing and fixing of Chemical earthing at 121 Nos. of residential quarters (C,2A, 2B, 2C, 3A and old D type Quarters) for safety point of view under township of Rajrappa Area

Amount

Excavation for cable trenches in soft soil, depth upto 1.2 m including dressing of sides lift upto 1.5 m, including getting out the excavated soil, refilling with sand and or good soil after laying of cable/ pipe etc in layers of 20 cm, ramming, watering and disposal of surplus excavated soil as directed, within a lead of 50 metres. ( for earth pit of size 0.75x0.75x1.75 m x121 Nos =119.11 Cum.)

Supply and erection of approved make safe earthing electrode consisting pipe-in pipe 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,With 2 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 25 kg (one Bag) back filling bentonite compound UL listed and confirm to relevant International/Indian standards around electrode upto ground level.

Providing and fixing G.I. tape 20 mm X 3 mm thick on parapet or surface of wall for lightning conductor complete as required.(For vertical run)

Providing and fixing testing joint, made of 20 mm X 3 mm thick G.I. strip, 125 mm long, with 4 nos. of G.I. bolts, nuts, chuck nuts and spring washers etc. complete as required.

Making earth pit chamber and providing masonry enclosure with cover plate having locking arrangement.

Total impact of GST for the purpose of CTC

K.P ENTERPRISES (BID ID -1108227)

M/s engineer associates (BID ID -1106621)