Annual Maintenance Contract Of 132 Kv S / S Lal Tappar Under Oandm Div Yamuna Colony , Dehradun , Quaterly Maintenance Of 33 Kv Feeders Complete Work Including Tightening Of Nut & Bolts Of All Ct , Cb , Attending Oil Leakage From Cts . Greasing , Oiling Of Cb , Cleaning Of All Equipements Of The Feeders And Helping In Routine Testing . , Quaterly Maintenance Of 132 Kv Feeders Complete Work Including Tightening Of Nut & Bolts Of All Ct , Cb , Line Isolators Clamps , Jaws , Blades , Attending Oil Leakage From Cts . Greasing , Oiling Of Isolators / Cb , Cleaning Of All Equipements Of The Feeders And Helping In Routine Testing . , Complete Maintenance Of 33 Kv Main Bus And All 33 Kv Bus Isolators Including Tightening Of All Nuts Bolts Of Dropper And Jumper And Clamps Etc . , Complete Maintenance Of 33 Kv Jack / Transfer Bus And All 33 Kv Jack / Transfer Bus Isolators And Line Isolators Including Tightening Of All Nuts Bolts Of Dropper And Jumper And Clamps Etc . , Complete Maintenance Of 132 Kv Main Bus And All 132 Kv Bus Isolators By Tightening Of All Nuts Bolts Of Dropper And Jumper And Clamps Etc . , Complete Maintenance Of 132 Kv Transfeer Bus And All 132 Kv Transfer Bus Isolators By Tightening Of All Nuts Bolts Of Dropper And Jumper And Clamps Etc . , Half Yearly Complete Maintenance Of 132 Kv / 33 Kv 40Mva Transformers By Tightening Of All Nuts Bolts Of Dropper And Jumper And Clamps Cleaning H . V . & L . V . Bushing Etc And Helping In Routine Testing . , Half Yearly Complete Maintenance Of 33Kv / . 40 Kv 250 Kva Station Transformers By Tightening Of All Nuts Bolts Of Dropper And Jumper And Clamps Cleaning H . V . & L . V . Bushing Etc . , Refilling Of Oil In Transformers , Ct , Pt After Centrifuging Oil Upto Required Bdv . , Refilling Of Sf6 Gas In 132 Kv / 33 Kv Circuit Breaker To Maintain Required Pressure ( Sf6 Gas Will Be Provided By Department ) , Replacement Of Damaged , Burnt , Defective Defferent Dropper , Jumper , Runner , Clamps / Jaws / Blades / Male / Female Contact Of Isolators Etc Of 132 Kv Feeders , Replacement Of Damaged , Burnt , Defective Defferent Dropper , Jumper , Runner , Clamps / Jaws / Blades / Male / Female Contact Of Isolators Etc Of 33 Kv Feeders , Maintenance , Repairing And Replacement Of Lighting System In Switchyard And Substation Premisses . ( Material Will Be Provided By Department ) , Maintenance , Repairing And Replacement Of Lighting System In Control Room , Committee Room , Office And Stores . ( Material Will Be Provided By Department ) , Providing A Skilled Person For Daily Dusting / Cleaning Of Front Of Control And Relay Penals , All Cabinates ( Plcc , Marshalling Boxes , Rtcc Etc . ) By Suitable Cleaning Agent Excluding Material . ( Monthly ) , Providing A Skilled Person For Daily Cleaning And Routine Maintenance Of Battery Sets And Charger Etc . Complete Work Including Cleaning Of Battery Terminal And Refilling Of Destilled Water And Preparing Of Destilled Water Etc . ( Monthly )