Ma级本质安全型矿灯设计与制造

Design and Manufacture of Ma-level Intrinsically Safe Miner's Lamp

以爆炸性环境相关标准规定作为Ma级本质安全型矿灯设计的理论基础,分析了现行矿灯存在的差距,确立了Ma级矿灯电源的三级保护方案和对系统保护参数进行了优化设计,同时对罕见的电源故障也采取了应对措施。它将使我国矿灯的防爆类型由特殊型(ExsI Mb)提升到本质安全型(ExiaI Ma)。

This paper uses the relevant standards and regulations of explosive atmosphere as the theoretical basis for the design of Ma - level intrinsically safe minerg lamp, analyzes the difference between Ma - level and the present commonly - used minerg lamps, estab- lishes the three - level protective scheme of Ma - level minerg lamp power, optimizes and designs the protective parameters of the sys- tem. Meanwhile, the paper takes measures on the rare power failures. This improves explosion- proof type of the minerg lamp in our country from special type （ExsI Mb） to intrinsically safe type （Exial Ma）.