With the development of China's coal industry, the degree of automation of coal mining operations has been continuously improved, and coal mine safety issues are particularly important. In recent years, mine explosion accidents have occurred continuously in coal mine connection, which has caused serious losses to personal safety and state property. Under the State Administration of Coal Mine Safety, great efforts are made to carry out major inspections of coal mine safety, striving to eliminate unsafe factors and reduce accidents. In mines with the danger of gas and coal dust explosion, explosion-proof electrical equipment must be used according to the provisions of the "Coal Mine Safety Regulations".