MT 221-2005 in English

本标准规定了煤矿用防爆灯具(以下简称灯具)的产品分类、要求，试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于具有甲烷或煤尘爆炸危险的煤矿井下工作面、巷道、嗣室以及移动式设备上作照明用的灯具，不适用于矿用安全帽灯

Scope

This standard specifies the product classification, requirements, test methods, inspection rules, marking, packaging, transportation and storage of explosion-proof lamps for coal mines (hereinafter referred to as lamps). This standard is applicable to lamps used for lighting on underground coal mine working surfaces, tunnels, chambers and mobile equipment with the risk of methane or coal dust explosion. It is not applicable to mining safety helmet lamps.