煤矿井下杂散电流的测量与治理

Measurement and Control of Stray Current in Coal Mine

基于杂散电流的概念及分类,阐述了杂散电流的测量与判断,介绍了杂散电流的成因,同时分析了杂散电流所带来的危害,包括引爆电雷管、腐蚀电缆外皮及其他金属管线、引发漏电保护装置错误动作和瓦斯爆炸和粉尘爆炸,并提出了相应的解决方案。治理杂散电流方案获得了比较好的风险防范效果,提高了井下安全供电水平。

Based on the concept of stray current record based classification, this paper describes the measurement and judgment of stray current, introduces the causes of the stray current, and analyzes the harm caused by stray current,including an electric detonator, cable jacket and other metal pipeline corrosion, cause leakage protection device malfunction and gas explosion and dust explosion. And put forward the corresponding solutions. The stray current control program obtains a good risk prevention effect and improve the underground power supply safety level.