甲烷断电仪的使用可以实现对甲烷的局部闭环监测,在掘进巷道中实现风、电、甲烷闭锁、防止甲烷超限事故。但在有些煤矿中,由于使用不当,没有发挥断电仪的作用,其中接线失误是常见的一种。因此,对于如何在掘进巷道供电系统中正确接入断电仪是十分重要的。本文叙述两种用于掘进巷道的断电仪接线系统,以供参考。 Methane off the use of electricity can be achieved on the local closed-loop monitoring of methane in the roadway to achieve wind, electricity, methane lock to prevent methane overrun accident. However, in some coal mines, due to improper use, did not play the role of power meter, which is the most common wiring errors. Therefore, it is very important for how to properly connect the power-off device in the power supply system of roadway. This article describes two types of power disconnect wiring systems used in driving a tunnel for your reference.