REPAIR-MAINT OF EARTHING LIGHTING ARRESTOR AND ALLIED WORK OF SUB STN UNDER GE (NORTH) BINNAGURI

Dismantling / Taking down old unserviceable Earthing pit of any type with accessories including removing of demolished material from work site complete all as specified and as directed.

M&L for earthing complete with galvanized steel plate electrodes of size600x600x6mm thick buried directly in ground with earth pit not less than 2.25 meter deep below normal ground level with top edge of plate not less than 1.5 meter below normal ground level connected to galvanised iron strip 32mm x 6mm by means of nuts, bolts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No-3 of SSR Part-I including necessary excavation and earth work, PCC 1:3:6 type C-1 with 50mm thick pre-cast RCC cover 1:2:4 type B-1 cover slab reinforced with 8 mm dia TMT bar @ 15cm C/C both ways with suitable handle of 10mm dia MS rod including providing charcoal or coke & common salt in alternate layer of 15cm compacted thickness all around the earth electrode with funnel and 40mm bore (light grade GI watering pipe) wire mesh, aluminium lugs complete in all respect GI earth wire protected by 15mm bore GI pipe and other end connected with main switch/ earth test pont, including dismantling old unserviceable earth pit complete all as specified and as directed.

M&L for earthing complete with galvanized steel plate electrodes of size600x600x6mm thick buried directly in ground with earth pit not less than 2.25 meter deep below normal ground level with top edge of plate not less than 1.5 meter below normal ground level connected to galvanised copper strip of size 20 x 3mm as earthing lead by means of nuts, bolts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No-3 of SSR Part-I including necessary excavation and earth work, PCC 1:3:6 type C-1 with 50mm thick pre-cast RCC cover 1:2:4 type B-1 cover slab reinforced with 8 mm dia TMT bar @ 15cm C/C both ways with suitable handle of 10mm dia MS rod including providing charcoal or coke & common salt in alternate layer of 15cm compacted thickness all around the earth electrode with funnel and 25mm bore (light grade GI watering pipe) wire mesh, aluminium lugs complete in all respect GI earth wire protected by 15mm bore GI pipe and other end connected with main switch/ earth test pont, including dismantling old unserviceable earth pit complete all as specified and as directed.

M&L for earthing complete with galvanized steel plate electrodes of size600x600x6mm thick buried directly in ground with earth pit not less than 2.25 meter deep below normal ground level with top edge of plate not less than 1.5 meter below normal ground level connected to galvanised wire 4.00 mm earth lead by means of nuts, bolts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No-3 of SSR Part-I including necessary excavation and earth work, PCC 1:3:6 type C-1 with 50mm thick pre-cast RCC cover 1:2:4 type B-1 cover slab reinforced with 8 mm dia TMT bar @ 15cm C/C both ways with suitable handle of 10mm dia MS rod including providing charcoal or coke & common salt in alternate layer of 15cm compacted thickness all around the earth electrode with funnel and 20mm bore (light grade GI watering pipe) wire mesh, aluminium lugs complete in all respect GI earth wire protected by 15mm bore GI pipe and other end connected with main switch/ earth test pont, including dismantling old unserviceable earth pit complete all as specified and as directed.

Supply & fixing of CAPE make UL listed maintenance free copper bonded earth rod of 3048mm length having the dia of 25mm with copper coating thickness of 254 microns. The rod has been tested for Dimension, marking, tensile strength salt mist, coating thickness, electrical resistivity test before and after corrosion test as per IEC 62561-2 & UL 467, CAPE type No 2510 (article No 300 150) supply of CAPE make Earth enhacement mineral compound - low earth resistance, amaintenance free and capable of dissipating lightning and other fault current in high soil resist ares. Tested for teaching, electrical resistivity of 0.018?m, polarization resistance of 8.9 m2 meets the requirements of UK 467, IS3043 and IS/IEC 62305 tested as per IEC 62561-7. 25 Kg CAPE type PROCEM 12.5 (Article No. 300 790) supply of CAPEmake universal clamp made up of stainless tell material for terminating cable with clamping size of 25mm dia. Meets the requirement of IS/IEC 62305 and IEC 62561-1. CAPE type SSUC 25 (Article No. 300 600) Supply of CAPE make earth chamber inspection pit made up of plastic withstand load of 60KN with the dimension of 290*290*209mm CAPE type: EC 290 (Article No. 300 852)

Supply and fixing GI tubing, 32 mm dia bore, light grade with all fittings laid in trenches or fixed to wall including taking down of existing pipes complete all as specified and as directed.

Supply and fixing test point terminal block made of gun metal or phosphorous bronze, size 75mm x 75mm x 25 mm thick, drilled and screwed including 3 Nos. 8 mm dia. 25 mm long hexagonal head screws, including MS box 2 mm thick of suitable size for protection of test point terminal, including dismantling of old unserviceable test point complete all as specified and as directed.

Material and labour for cutting existing steel tubing for additional/ alteration (each cut measured) of size 50 mm dia complete all as specified and as directed.

Material and labour for screwing existing steel tubing 50mm dia for taking new branch connection complete all as specified and as directed.

Supply and fixing bib tap, self closing type of cast iron or malleable cast iron, galvanised screw for fixing to iron pipe of size 20 mm dia including taking down of existing bib tap complete all as specified and as directed.