Providing Chemical earthing, Lightening protection system and surge suppressor system for NFS sites at EAC Upper Shillong.

Amount

Providing Chemical Earthing by using UL approved CPRI tested Copper bonded 17mm 3mtr GI Rod, Earth Enhancement Water soluble Gel, Earth Enhacment Material, earth pit cover, i/c excavation and refilling with cement plastering around the pit etc. and as per the specification enclosed etc as reqd.

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 metre long etc. with charcoal/ coke and salt as required.

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

Providing and fixing 25 mm X 5 mm copper strip in surface /recess for connection etc complete as reqd.

Providing/fixing earth bus 50mmx5 mm copper strip in surface for connection s etc complete as reqd.

Providing and fixing Franklin rod type air terminal made of solid round copper of not less than 300 mm long and diameter not less than 16mm with multi prong with suitable mounting plate i/c jointing by riveting / nut bolting/ sweating and soldering etc 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 tape 25 mm X 3 mm thick on parapet or surface of wall for lightning conductor complete as required.(For horizontal run)

Providing and fixing Copper tape 25 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 25 mm X 3 mm thick Copper strip, 125 mm long, with 4 nos. of Copper bolts, nuts, chuck nuts and spring washers etc. complete as required.

SITC of KEMA/VDE certified encapsulated (protected against ionized plasma blow outs) Spark gap type coordinated lightening and Surge protection for Stage-I protection designed for TT configuration against LEMP and high surges i/c interconnction earthing etc in suitable enclosure as per sepcification enclosed as reqd.

SITC of KEMA/VDE certified encapsulated (protected against ionized plasma blow outs) Spark gap type coordinated lightening and Surge protection for Stage-II protection designed for TT configuration against low voltage surges with thermal disconnection and potential free contact for arrestor connected between live and neutral and earth i/c interconnction earthing etc in suitable enclosure as per sepcification enclosed as reqd.

Providing and laying 50 mm dia GI pipe, B class direct in ground / fixing on wall complete as reqd

M/S PK DEB