Specification for mining type flameproof gate-end boxes : Gate-end boxes for direct-on-line motor starting (for use on 3-phase a.c. circuits up to 650 volts)
British Standards Institution
Specification for mining type flameproof gate-end boxes : Gate-end boxes for direct-on-line motor starting (for use on 3-phase a.c. circuits up to 650 volts) - - London BSI 1965 - 23 - IP 76 - 001 .
622.005:621.316.36-2
Specification for mining type flameproof gate-end boxes : Gate-end boxes for direct-on-line motor starting (for use on 3-phase a.c. circuits up to 650 volts) - - London BSI 1965 - 23 - IP 76 - 001 .
622.005:621.316.36-2