annual rate contract regarding assistance in different types of day to day maintenance activities under e/m-iph-ii ., assistance in schedule maintenance of the ht motors of id fan/fd fan/pa fan/ce pump/coal mill of unit-4 , 5 , 6 , assistance in schedule maintenance of the lt motors of seal air fan/ compressor/ dmcw pp/ scw pp/ air pre-heater etc . of unit-4 , 5 , 6 , assistance in cable disconnection and connection of different ht motors of unit-4 , 5 , 6 . , assistance in cleaning of 6 . 6kv bus sa/sb/osc/osd of unit-4 , 5 , 6 . , assistance in cleaning of 415v bus/mcc panel pa/pb/mc/ ma/ mb/oma etc . of unit-4 , 5 , 6 . , assistance in cleaning of generator bus duct of unit-4 , 5 , 6 phase side , assistance in cleaning of generator bus duct of unit-4 , 5 , 6 neutral sides . , phase side/neutral side flexible jumper disconnection ( 3 ph . ) , phase side/neutral side flexible jumper connection ( 3 ph . ) , cleaning of indoor dry type transformer . , collection and shifting of heavy materials from o&m stores to the worksite . , shifting of heavy scrap materials from the worksite to scrap yard . , fabrication and erection of earthing strip , fabrication of canopy for the motor up to 10 kw , fabrication of canopy for the motor up to 30 kw , fabrication of canopy for the motor up to 100 kw , fabrication of canopy for the motor above 100 kw , epoxy panting with equivalent primer ( 2 coats ) , synthetic enamel panting with equivalent primer ( 2 coats )