bids are invited for tentative estimate for repairing of gate way for data acquisition & attending of sf6 leakage from 33 kv gis circuit breaker bus coupler at 132 kv gis s/s govindpuram under electricity transmission division-ii ghaziabad.; following work are required for rectification of gateway installed at 132 kv gis s/s govindpuram repairing/replacement of lane 2 port, replacement of storage supporting circuit components like linear regulator, varistor, optocoupler etc. processor crystal have to replaced due to boot up issue. cf disk (256 mb compact flash) need to load eboot and os & if required replace the cf disk.reload the www. webcon and supporting files. conduction of full hardware and software tests following work are required for rectification of attending of sf6 leakage from33 kv gis buscoupler bay at 132 kv gis s/s govindpuram opening of 33 kv gis bus coupler bay cb at 132 kv gis s/s govindpuram identifying leakage spot with leakage detector of 33 kv gis bus coupler bay attending leakage by replacing damaged gaskit or other defective item of 33 kv gis cb chamber refitting of 33 kv gis bus coupler chamber bay module after attending leakage providing and fixing of fibre optical multimode patch cables (lc to lc) having length 10 meter each for healthy scada working for data acquisition in scada working at 132 kv gis ss govindpuram providing and fixing of fibre optical multimode patch cables (lc to lc) having length 05 meter each for healthy scada working for data acquisition in scada working at 132 kv gis ss govindpuram