Specification for mining type flameproof gate - end boxes - gate - end boxes with lighting transformers 矿用式防爆电缆终端箱规范.第3部分:带照明变压器的电缆终端箱
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Specification for air - cooled flameproof single - phase lighting transformer units supplied from high voltage systems 高压供电系统用气冷式防火单相照明变压器装置规范
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Mining type flameproof supply and control units for use on systems up to 1100 v . specification for air - cooled lighting transformer units 电压可达1100v的系统用矿山型阻燃式电源和控制装置.第3部分:气冷式照明用变压器装置规范