Specification for 50 A 650 V flameproof, restrained and bolted plugs and sockets for use in coal mines
煤矿用50A 650 V防火、约束和螺栓连接插头和插座规范
1990-07-31
BS 5620-1995
Specification for 200 A 1100 V flameproof restrained and bolted plugs and sockets for use in coal mines
煤矿用200A 1100V防火约束螺栓插头和插座规范
1995-02-15
BS 3101-1986
Specification for control and interlock circuits primarily associated with flameproof restrained plugs and sockets for use in coal mines
主要与煤矿用防火限制插头和插座有关的控制和联锁电路规范