Annual Maintenance Special Repairs to 1000KVA Transformers of NSRS Srisailam Project for the year 2025-26

Routine maintenance of transformer, including testing of insulation resistance, oil breakdown strength. Reconditioning / replacement of silica zel, cleaning of transformer and topping upto oil level if required (extra cost will be paid for oil).

Removing the existing transformer from the plinth / Pole and refixing the standby transformer of 500 / 1000 KVA capacity including connections etc., complete.

Painting to transformer with 2 coats Zinc chromate red oxide duly scraping existing paint 630 / 1000 KVA by 2 coats of hammer ton grey paint etc., complete.

Filtration of transformer oil as per ISS specifications filters to dielectric strength above 40KV at site. (Per Ltr) excluding transportation

Supply and transportation and fixing of 150 W LED Street light Luminaire made of pressure diecast alluminium body with powder coated, having protective toughned glass, Supply Input voltage 120 - 270 V AC, P.F >0.90, high power LED's System efficacy >110 lm/W and junction temprature < 70°C, with Ingrees protection IP66, Luminaire performance complies to IS 10322 (Part 5 / Sec-3), Driver surge protection 4KV, In house additional Surge protection 10 KV with optics distribution , THD<10% at 110 Volts AC, driver efficiency >90%, CCT: 3000K - 5700K, minimum CRI>70, etc., complete .a) Luminaire Make : Wipro(Skyline) / Philips (Greenline Extra) / GE- Venture/ Crompton (Nexus / Hawk series)/ Bajaj (Edge)/ Halonix (Modular/ Lumos-Super) / Havells (Endura Series)/Greenlites(HI-Lux) /Capart (Premium)/ Polycab/ Keselec/ HPL(City Vision)/Jaquar (Premium) /Eveready /Surya (Pollux)/ Fortune Art (Leaf)b) LED MAKE :PHILIPS LUMILEDS / CREE / NICHIA /OSRAM / SAMSUNG / LG.

Supply and Transportation of 4C x 4 sq.mm XLPE/PVC insulated & PVC sheathed armoured cables of 1.1 KV grade with copper conductor as per IS 7098 Part-I -1988 etc., complete.Make: Torrent / Universal / Unicab / Havells / KEI /Polycab/Gloster/Orbit/ Paragon/RR Kabel /RPG /Rhino /Pawancab/AKG/LS cable/ Polywires