Provision of Conventional type lightning arrester over Power House at Agatti Airport

Amount

Providing and fixing of 5 spike copper lightning conductor finial 9.2mm diameter and 915mm in length with base plate of 90 mm x 90mm , with 10 number epoxy electrical insulator including fixing arrangement etc. complete as required.

Jointing copper / G.I. tape (with another copper/ G I tape, base of the finial or any other metallic object) by riveting / nut bolting/ sweating and soldering etc as required.

Providing and fixing Copper strip 20 mm X 3 mm thick on parapet or surface of wall for lightning conductor complete as required.(For horizontal run)

Providing and fixing Copper strip 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 Copper strip, 125 mm long, with 4 nos. of SS bolts, nuts, chuck nuts and spring washers etc. complete as required

Providing and laying Copper Strip 32 mm X 6 mm from earth electrode directly in ground as required.

Earthing with copper earth plate 600 mm x 600 mm x 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 meter long etc. with charcoal/ coke and salt as required.

Supply and fixing of porcelain insulator of size 40mm (L) x 8mm (W) x 12mm (H) with slot and screw / thread arrangement for holding Earthing strip of 20mm x 3mm on to horizontal / vertical wall with proper bolts , water tight sealant etc complete as required.

Mohammed Shafi C.K (BID ID -803426)