规定了为地下煤矿安全运行而设计的柴油机系统的防爆要求，包括在爆炸危险区的使用。还涉及无意中短期暴露在高甲烷水平下以及由此产生的任何不受控制的燃烧。

Sets out the explosion protection requirements for diesel engine systems designed for safe operation in underground coal mines, including use in explosion-risk zones. Also addresses inadvertent short-term exposure to high methane levels and any consequent uncontrolled combustion.