Details: supply and fixing in replacement of unserviceable 11kv rotating type air break isolating switch 400 amps, horizontal mounting triple pole mechanically operated horizontal type 12 insulators with galvanised frame, operated from ground level including operating rod, handle locking mechanism current carrying capacity 400 amps,11000 volt fixed on existing channel with nuts, bolts and washers including taking down of old unservicable isolator from steel structure complete all as specified and directed. supply, installation ,testing and commissioning of 66 kv class station heavy duty metal oxide gapless type lightning arrestor with use of effective ground neutral system with insulating base including surge monitors for 66 kv with all accessories to meet the requirement as under including taking down of old complete all as specified and directed:-(a) nominal system voltage – 66 kv (rms)(b) highest system voltage – 72.5 kv (rms)(c) mcov 52 kv(d) nominal discharge current – 10 kap(e) line di
Sector: Defense