tender for operation & maintenance of ehv & hv substations and electrical maint of psx & tube well areas.- 1 preventive maintenance of 132kv sf6 circuit breakers in cds switch yard 2 preventive / breakdown maintenance of 132kv / 11kv power transformers in cds switch yard 3 preventive / breakdown maintenance of 11kv / 415 v distribution transformers of dry and oil filled type in various shops of cffp. 4 preventive / breakdown maintenance of control & relay panels in cds 5 operation of central distribution substation in one shift jointly with cds staff 6 preventive / breakdown maintenance of 33kv vcbs in cds switch yard 7 preventive / breakdown maintenance of 11kv vcbs / ocbs in cds 8 preventive / breakdown maintenance of 11kv capacitor banks in cds 9 preventive / breakdown maintenance of 33kv capacitor banks in cds 10 preventive maintenance of earthing installations and associated earthing systems 11 preventive and breakdown maintenance of batteries, battery chargers and inverters 12 making of end termination / straight through joints ht cables of various sizes ( pilca or xlpe ) 13 cleaning of cable gallery and underground tunnels of 11kv and 33kv 14 preventive and breakdown maintenance of various motors in psx area 15 preventive and breakdown maintenance of various starter panels and control supplies in psx area 16 preventive and breakdown maintenance of various power distribution boards in psx area 17 cleaning and uprooting of wild growth on per square meter area basis in 132 kv switch yard 18 preventive / breakdown maintenance of 132 & 33 kv isolators in cds switch yard. 19 preventive maintenance of 132 & 33kv lightning arrestors and pts in cds switch yard. 20 preventive / breakdown maintenance of 132 & 33kv current transformers in cds switch yard. 21 preventive / breakdown maintenance of 11kv main bus-sections in cds and remote sub-stations like ds-ii, ds-iii, ds-iv and s.fdy extn. 22 operation and maintenance of transformer oil filtration machine in shifts jointly with cds staff. 23 misc. unskilled work at cds.