煤矿井下电气疑难问题及对策

The Problems and Countermeasures of Coal Mine Electrical

煤矿生产环境复杂多变，电气设备、电缆种类繁多，电气方面的问题层出不穷。有些问题有规律可循能够迎刃而解，但有一些电气疑难问题还是让煤矿电气维护人员和管理人员很头疼。这不仅关系着煤矿的生产，也给煤矿的安全带来了威胁。

Production of coal mine environment is compli-cated, there are many different kinds of electric equipment, cables and electrical problems emerge in endlessly. Some pr-oblems can be solved by using the law, but there are some electrical problems stil make coal mine electrical maintenance engineers and managers very troublesome. It is not only rel-ated to the coal mine production, but also pose a threat to the security of coal mine.