repair and maintenance of e and m installations at silchar airport . sh-job contract for e and m installations at 11 kv substation and kumbha pump house and allied works for the year 2020-22 , providing maintenance services of electrical & mechanical installations viz power supply system of 11 kv substation/power house , cts , transformers , avrs & ht & lt panels covering the scope of operation , repairs & maintenance , attending faults / breakdowns rectifications , ensuring serviceability / satifactory working condition of the systems , preventive maintenance on daily/ weekly/ monthly/ quarterly/ half yearly/yearly basis , maintenance of records/documentation etc . as per scope of work given in special conditions of contract shall be ensured round the clock by the aduquate manpower ( ie . in three shifts basis basis , each shift of 8 hours ) on all days including sundays & national holidays as per direction of eic . for 1st year , providing maintenance services of electrical & mechanical installations viz power supply system of 11 kv substation/power house , cts , transformers , avrs & ht & lt panels covering the scope of operation , repairs & maintenance , attending faults / breakdowns rectifications , ensuring serviceability / satifactory working condition of the systems , preventive maintenance on daily/ weekly/ monthly/ quarterly/ half yearly/yearly basis , maintenance of records/documentation etc . as per scope of work given in special conditions of contract shall be ensured round the clock by the aduquate manpower ( ie . in three shifts basis basis , each shift of 8 hours ) on all days including sundays & national holidays as per direction of eic . for 2nd year , day to day operation of kumbha pump house of 40hp/20hp water pump sets , i/c lighting & power supply system attending faults / breakdowns rectifications , ensuring serviceability / satifactory working condition of the systems , preventive maintenance on daily/ weekly/ monthly/ quarterly/ half yearly/yearly basis , maintenance of records/documentation etc . as per scope of work given in special conditions of contract shall be ensured round the clock by the aduquate manpower ( ie . in three shifts basis , each shift of 8 hours ) on all days including sundays & national holidays & as per direction of eic . for 1st year , day to day operation of kumbha pump house of 40hp/20hp water pump sets , i/c lighting & power supply system attending faults / breakdowns rectifications , ensuring serviceability / satifactory working condition of the systems , preventive maintenance on daily/ weekly/ monthly/ quarterly/ half yearly/yearly basis , maintenance of records/documentation etc . as per scope of work given in special conditions of contract shall be ensured round the clock by the aduquate manpower ( ie . in three shifts basis , each shift of 8 hours ) on all days including sundays & national holidays & as per direction of eic . for 2nd year , extra hours running & operation of electrical installations of airport due to exigencies/early or over watch hour extension beyond normal shift hours or as per specification . a ) services of high skilled personfor 1st year , extra hours running & operation of electrical installations of airport due to exigencies/early or over watch hour extension beyond normal shift hours or as per specification . a ) services of high skilled personfor 2nd year , extra hours running & operation of electrical installations of airport due to exigencies/early or over watch hour extension beyond normal shift hours or as per specification . a ) services of skilled personfor 1st year , extra hours running & operation of electrical installations of airport due to exigencies/early or over watch hour extension beyond normal shift hours or as per specification . a ) services of skilled personfor 2nd year , filtration & dehydration of insulation oil of existing ht installations ( like- ht avrs & 11 kv indoor transformer ) in substation using on line oil filtration equipment with initial heating arrangement to attain standard breakdown voltage including testing of breaking strength prior and past purification with certificate and replacement of silica gel of breather of the same etc as required and as per direction of engg-in-charge . location: sub stationfor 1st year , filtration & dehydration of insulation oil of existing ht installations ( like- ht avrs & 11 kv indoor transformer ) in substation using on line oil filtration equipment with initial heating arrangement to attain standard breakdown voltage including testing of breaking strength prior and past purification with certificate and replacement of silica gel of breather of the same etc as required and as per direction of engg-in-charge . location: sub stationfor 2nd year , servicing , testing , checking and calibration of relay ( over current 2 nos + 1 no earth fault relay ) installed in 11 kv ht panel including calibration and testing of 03 nos vcb ( 400 amp ) 11 kv ht - cg make with suitable secondary injection kit and submission of test certificate completed as required , checking the function of auxilary relay ( confirming the tripping ) mechanism of the breaker due to high winding temperature , high oil temperature and due to bucholz relay , activation of the connection transformer , testing the of tripping system by secondery injection kit , tighning the terminals and termination , changing of all nuts and bolts i/c washers ( if required ) , replacement of all insulator/bushing of 11 kv panel ( 01 incommer and 02 no out going+ insulators of pt section ) ( if required ) , replacement of the cork sheet and replacement of 3 sets of indoor type resin cast cts ( if required ) i/c pressure test at site and calibrating the same complete as required and as per direction of engg-in-charge . location: sub stationfor 1st year , servicing , testing , checking and calibration of relay ( over current 2 nos + 1 no earth fault relay ) installed in 11 kv ht panel including calibration and testing of 03 nos vcb ( 400 amp ) 11 kv ht - cg make with suitable secondary injection kit and submission of test certificate completed as required , checking the function of auxilary relay ( confirming the tripping ) mechanism of the breaker due to high winding temperature , high oil temperature and due to bucholz relay , activation of the connection transformer , testing the of tripping system by secondery injection kit , tighning the terminals and termination , changing of all nuts and bolts i/c washers ( if required ) , replacement of all insulator/bushing of 11 kv panel ( 01 incommer and 02 no out going+ insulators of pt section ) ( if required ) , replacement of the cork sheet and replacement of 3 sets of indoor type resin cast cts ( if required ) i/c pressure test at site and calibrating the same complete as required and as per direction of engg-in-charge . . location: sub stationfor 2nd year , calibration and testing of air circuit breaker ( make: ge ) of capacity ( range: 800 amp to 1250 amp ) using suitable secondary injection kit and submission of test certificate completed as required . location: sub stationfor 1st year , calibration and testing of air circuit breaker ( make: ge ) of capacity ( range: 800 amp to 1250 amp ) using suitable secondary injection kit and submission of test certificate completed as required . location: sub stationfor 2nd year , complete cleaning of jack well ( size: l= 4 . 5 mtr x b= 3 . 5 mtr x d= 0 . 50 mtr ) at kumbha pump house along with cleaning and removal of mud/slugg in the jack well engaging sufficient no . of suitable workers provided with suitable tools and protective gadgets with adequate safety measures and disposal of the remove mud/slugg when it is required & as per direction of eic . location: kumbha