annual rate contract for electrical o and m support service in oph area , supply items: , laying of power cable ( 2/3/3 . 5c ) of sizes above 185 sq . mm . and 1cx630/1000sq . mm . ( in tray or trench ) , lt cable jointing , ht cable jointing , painting , manpower assistance ( technician ) , manpower assistance ( helper ) , engagement of site-in-charge on regular basis through out the period of the contract . , availability of maintenance groups along with all necessary resources/t&p ( through out the period of contract on regular basis ) and engagement at power plant to attend urgent & emergency requirements in respect of electrical equipment & systems of areas under the scope of this contract within specified minimum response time . apart from emergency call service , the scope shall also include routine checks , monitoring , up-keepment , routine/preventive maintenance ( daily/weekly/quarterly/half-yearly ) and troubleshooting , breakdown maintenance , condition monitoring support , shutdown maintenance , servicing & overhauling of ht board/mcc/pcc/pmcc/dc distribution boards along with all its modules/circuit breaker , transformers , lt motors , electrical actuators laying , termination and straight through joint of power cables ( 2/3/5 . 3/4c upto 70sqmm ) , etc . as per the detail scope at annex-iib for entire pws package ( including cw chlorination , waste water system ) , stp , cwph , fire water ph , etp , administrative building , workshop building , store building etc . , laying of power cable ( 2/3/3 . 5c ) of sizes above 70 sq . mm . upto 185 sq . mm . ( in tray or trench ) , electrical electrical shift maintenance for water package , of 2x600mw rtps: round the clock operation support service ( in 3 shifts a day ) undertaking electrical operation activities including supervision and troubleshooting & minor maintenance works related to electrical equipments & systems under scope of contract in shift operation . , arrangement ( hiring ) of mobile crane ( 10-15t ) with operator/driver , manpower assistance ( electrician ) , manpower assistance ( welder/fitter ) , ht motor of rating less than equal to 300 kw: replacement of bearing of both side , ht motor of rating >300 kw and &less than equal to 1000 kw: replacement of bearing of both side , ht motor of rating > 1000kw: replacement of bearing of both side