作者对阳泉矿区井下瓦斯管路的发火问题,进行了长时间的考察研究。得到了发火是由杂散电流引起的结论。本文分析研究了瓦斯管路上杂散电流的性质,瓦斯管路上杂散电流能量的大小以及杂散电流的来源,并提出了降低杂散电流的措施。通过阳泉矿区的工作,对于解决我国各矿井采区内部的杂散电流,具有指导意义。 The author conducted a long period of investigation and study on the ignition problem of the gas pipeline in Yangquan Mine. Get angry is caused by the stray current conclusion. In this paper, the properties of stray current in gas pipeline, the size of stray current energy in gas pipeline and the source of stray current are analyzed and analyzed. Measures to reduce stray current are also proposed. Through the work of Yangquan Mining Area, it is instructive to solve the stray current in the mining area of ​​our country.