Home / Standards / GB/T 3836.23-2017 GB/T 3836.23-2017 Active Explosive atmospheres—Part 23：Group I，category EPL Ma equipment intended to remain functional in atmospheres endangered by firedamp and/or coal dust 爆炸性环境 第23部分：用于瓦斯和/或煤尘环境的I类EPL Ma级设备 Standard Type GBT ICS 29.260.20 CCS K35 Status 现行 Issue Date 2017-07-31 Implementation 2018-02-01 Responsible Dept 中国电器工业协会 Drafting Unit 中国电器工业协会