Specification for mining type flameproof gate-end boxes, Gate-end boxes with air-break circuit-breakers (for use on 3-phase a.c. circuits up to 650 volts)— 22 стр.
Specification for 1.9/3.3 kV, 300 A bolted flameproof cable couplers and adaptors (including 380/660 V and 640/1100 V, 300 A adaptors) for use in coal mines— 34 стр.
Specification for 1.9/3.3 kV, 300 A bolted flameproof cable couplers and adaptors (including 380/660 V and 640/1100 V, 300 A adaptors) for use in coal mines— 34 стр.
