bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - 132kv r ur; 145kv control and relay pannel and 145kv sf-6 circuit breaker cgl make; service provider - dismantling of following old control & relay panels installed in control & relay room by opening of cable connectlons, earthing flats, nuts, bolts etc. including safe disconnetion of cable loop inter panel cables connection etc. & makeing of new loop connection (temporary) i.e. bus pt, for other healthyness of running control panels as required. the work alos includes indentification of the control cable by providing suitable ferrules etc. for later use and safe shifting of the panels from control room to place/site store at s/s. (one job per feeder/transformer):- such as 132kv r ur(220)-r ur line feeder control and relay pannel , installation of following new control and relay panels in control room after shifting from storage place, its grouting & earting and termination of control cables in control and relay panels as per cable schedule including providing & fixing of cbale glands of appropriate sizes and ferrules etc. with all other associated works as per technical specification including panel to panel cable connections etc. the work also inculdes control cable connections as required between control panel shall be done jointly with t&c wing including troubleshooting as neede/necessary. alos inter connection diagram as per new control panel shall be submitted and got approved by the concerned supervising engineer/incharge before start of work. after completion of work schedule shall be provided as executed mentioning tb no. & ferrules for each control panel on a4 size 100gsm with clear print (one job per feeder/transfomer) : - such as 132kv r ur(220)-r ur line feeder control and relay pannel , laying of following size pvc copper cable in place of running jointing cable between different control panel/relay panel to different equipment / marshalling box junction box in switchyard, control panel to relay panel / bus bar protection panel necessary as per drawing with proper tagging, ferruling and dressing, binding with cl /cable tie on cable rack in tunnel and trench. the cable shall be passing through cable hall cable rack & tunnels rack and trench. the work also include openig of trench covers and re-fixing them from trench after completion of work satisfactorily. note: - the control cable shall be laid as per actual requirement at site and may vary +/-20%, name of bay.(132kv r ur(220)-r ur line feeder control and relay pannel) , dismantling & removing of size old and unused/damaged/defective cable from different cable rack in tunnel and trench. these cables are passing through cable cable rack & tunnels rack & trench etc. the work include opening of its binding, collecting making ples and shifting to site storage place along with opening of trench of trench cover and re-covering after completion of work satisfactorily : - , control cable termination of un-armoured pvc control cable 2/4/6/10x2.5 sq. mm including cost of cable gland, lugs, ferrules & cable dressing of control and relay panel of various feeder bays. , for work of testing/servicing & overhauling of 145 kv sf-6 circuit breaker cgl make installed at 132 kv s/s r ur, under etd r ur.