Overview of standard and technology development of underground explosion-proof electrical equipment

The paper summarized coal mine underground explosion-proof electrical technique and its development, emphatically introduced the actualities and development trend of coal mine underground explosion-proof electrical standards, analyzed and studied the difference between two domestic and international electrical standards IEC 60079 and GB 3836. At last, the paper pointed out that the intrinsically safe explosion-proof type will be the next major form of coal mine underground explosion-proof electrical equipment.