Inspection cleaning tightness checking and painting of strung Bus Earth Bus and its frame under hung Bus Insulator in 230 KV Indoor Switch yard I during the year 2020 21

Part-A: Labour charges for routine Cleaning of strung Bus insulators at an elevation of 15 mtrs for 2 ends.To make insulators healthy and to avoid carona discharge, in 230 KV Indoor Switch yard- I end and Power House column. Strung Bus: Transformer (5x3)x2 Both ends = 30 Nos Feeders 6 x 3 1 end = 18 Nos Data I Total = 48 Nos

Part – B Routine cleaning under hung Bus bar support insulators stack consists of 6 Nos insulators and cleaning of steel structures at an elevation of 13.5m including movement of telescopic type tiltable ladder, discharge rods from Switchyard I stores to the work spot and back on completion of works, to make insulators healthy and to avoid carona discharge. a) In Feeder circuit - 54 Nos b) In transformer circuit - 79 Nos c) Bus section Bays - 45 Nos Data II Total- 178 Nos

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