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煤炭是我国主要的能源,煤炭的开发广度和利用深度是我国现代化重要标志之一。随着能源的发展,需要开发更多、更有效的矿用电工产品,对矿用电器除了一般性能指标外,还应有安全性指标,即应具有防爆.防火和防触电等性能。矿用电工产品种类繁多,最主要的有隔爆型,增安型和本安型
Coal is a major energy source in our country. The development and utilization of coal is one of the most important symbols of China’s modernization. With the development of energy, more and more effective mining electrical products need to be developed. In addition to the general performance indexes of mining electrical appliances, safety indicators should be provided, that is, they should be explosion-proof, fire-proof and electric shock-proof. A wide range of mining electrical products, the most important are Flameproof, increased safety and intrinsically safe