supply of insulating base for jumper plug assembly [insulating base for jumper plug assembly (with fixing screws) for inter vehicular coupler 500a, 750v, 3 phase, 50 hz, for lhb type coaches confirming to rdso specification no. rdso/pe/spec/ac/0177-2013 (rev.1) with rcf drawing no lw71304,alt.b. note: material to be purchased from rdso/rcf/icf/mcf or my zonal approved sources only as per rdso spec no. rdso/pe/spec/ac/0177- (rev.1) 2013. ]insulating base for jumper plug assembly [insulating base for jumper plug assembly (with fixing screws) for inter vehicular coupler 500a, 750v, 3 phase, 50 hz, for lhb type coaches confirming to rdso specification no. rdso/pe/spec/ac/0177-2013 (rev.1) with rcf drawing no lw71304,alt.b. note: material to be purchased from rdso/rcf/icf/mcf or my zonal approved sources only as per rdso spec no. rdso/pe/spec/ac/0177- (rev.1) 2013. ],insulating base for jumper plug assembly (with fixing screws) for inter vehicular coupler 5 00a, 750v, 3 phase, 50 hz, for lhb type coaches confirming to rdso specification no. rdso/pe/spec/ac/ 0177-2013 (rev.1) with rcf drawing no lw71304,alt.b. note: material to be purchased from rdso/rcf/ic f/mcf or my zonal approved sources only as per rdso spec no. rdso/pe/spec/ac/0177- (rev.1) 2013. [ warranty period: 30 months after the date of delivery ] ]