supply of store materials for maintenance of rli schemes under berhampore-i ( a-m ) division supply and delivery of electrical materialsat berhampore ( am ) sub-division , supply and delivery of bakelite square bar with contact for 200 amp make-gsc , supply and delivery of sheet metal enclosed re-wireable type fuse , main switch , 415 vlts , 3 phase , 50 cycles a . c . supply confirming to is: 13947 ( part-3 ) /1993 for - 200amps ac , tpn ( gec/gsc make ) ( as per approved sample ) , supply and delivery of 4 inch round projection type voltmeter ( 0-500 volts ) , mi ac , accuracy within +1 . 5% and confirming to is : 1248/1968 brand-bmc ( bright moon company ) , supply and delivery of porcelain fuse grip ( top & bottom complete ) for 63 amp main switch ( gsc make ) ( as per approved sample ) , supply and delivery of porcelain fuse grip ( top & bottom complete ) for 200 amp main switch ( gsc make ) ( as per approved sample )