众所周知,我国煤炭资源开采大多是在井下进行,其特殊的开采空间、煤层结构使得煤矿井下环境十分恶劣。采掘面周围含有大量的瓦斯及煤尘等易燃、易爆物质,如果用电不当,很容易由于用电设备出现漏电等发生电火花引起井下瓦斯、煤尘爆炸等严重事故。文章重点对煤矿井下低压供电系统的现状进行分析,并对提高煤矿供电安全的可靠性技术措施进行了详尽的分析。 As we all know, most of China’s coal mining is carried out underground, its special mining space, coal seam structure makes the coal mine environment is very harsh. The excavation surface contains a lot of gas and coal dust and other flammable and explosive materials, if the power is not properly, it is likely to occur due to leakage of electrical equipment and other sparks caused by underground gas, coal dust explosion and other serious accidents. The paper focuses on the analysis of the status quo of low voltage power supply system in underground coal mines and analyzes in detail the reliability technical measures to improve coal supply safety.