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.
Mining type flameproof supply and control units for use on systems up to 1100 V, Specification for air-cooled transformers to power drilling machines— 26 стр.
