REPAIR/REPLACEMENT OF INSULATORS/HT VCB/RMU PANELS/MAINTENANCE OF TRANSFORMER AND TWO POLE STRUCTURE AND EARTH PITS AND ALLIED WORKS AT AF STN MOTHALA UNDER GE (AF) NALIYA

M & L in repair of Rewinding old / burnt out HT/LT coils by super enameled copper winding wire / strips of appropriate size of super quality (as per existing material & size of transformer coils) including, insulating, varnishing, heating, keeping coils in position, etc for transformer up to 500 KVA.

Dehydration/ Filtration of transformer oil/ stabilizer oil / HT oil switch up to 630 Amps capacity of exisitng transformer/ stabilizer of 30 kVA to 500 kVA installed at site/ HT oil switch up to 400 Amps capacity installed at various locations, with portable plant to improve the dielectric strength 40 to 60 kV during filling of oil, after intial filtration, including testing of dielectric strength after dehydration at site. Note: contractor shall produce the transformer oil tests showing oil test results before and after filteration consisting of transformer details all as directed.

Supply & filling in repair of transformer oil in transformer / voltage stabilizer in situ/ at site for toppin up the level of oil having dielectric strength 40-60 kV during filling after initial filtration conforming to IS-335 complete all as specified and directed. Make: Power/ Insole/ Universal. Note: transformer oil shall be supplied in sealed container.

Excavation in trenches not exc. 1.5m wide and not exc. 1.5m in depth for foundation etc or for shafts, wells, cesspits, manholes pier holes etc not exc. 10sqm on plan and not exc 1.5m in depth and getting out in soft/loose soil complete all as specified and directed by Engineer-in-Charge.

M & L for in replacement of unreinforced precast concrete cable covers CLASS HV type I, flat size 300 x 180 x 40 mm laid transverse to cable complete all as specified and as directed.

Taking out unreinforced precast concrete cable covers CLASS HV type I, flat size 300 x 180 x 40 mm laid transverse to cable complete all as specified and as directed.

Laying only unreinforced precast concrete cable covers CLASS HV type I, flat size 300 x 180 x 40 mm laid transverse to cable complete all as specified and as directed.

Supply & Fix in replcement of HT 11 KV 3 core 120 Sqmm cable in trenches/fixed to poles/wall, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (HT), heavy duty with aluminium conductor, 11000 volts (earthed) grade 120 Sqmm x 3 core all as specified and directed by EIC. Note : Excavation, earthwork, cable joints, sand coushing & cable cover will be measured and paid separately if required

Taking out unserviceable / serviceable HT cables from excavated trenches, ducts, wall, pole etc including removing cable covers, sand, cable joints, pipes, clamps etc, taking out old serviceable cables for reuse and removing unserviceable cables, covers etc, for the sizes of cables 95 / 120 Sqmm all as directed by Engg in charge.

Relaying the serviceable HT 11 KV 3 core 95/120 sqmm of size cable in trenches/fixed to poles/wall, XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (HT), all as specified and directed by EIC. Note: Excavation, earthwork, cable joints, sand coushing & cable cover will be measured and paid separately if required.

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