防爆电气入井前应检查哪些内容?
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防爆电器设备入井前应由指定的经考试合格的()检查其电气设备的防爆性能,并取得合格证,方准人井。
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矿用防爆型电气设备入井前应检查产品合格证,()及煤矿矿用产品安全标志检查合格后签发合格证后方可入井。
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“防爆电气设备入井前不按规定进行检查、签发合格证”属()行为。
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防爆电气设备入井前,应经过哪些检查全格并签发合格证后,方可入井?
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防爆设备入井前,应检查所有电气设备的()及安全性能,检查合格并签发合格证后,方可入井。
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防爆电气设备,在入井前必须经专职防爆检查员检查其()、()、()及安全性能;检查合格并签发合格证后,方准入井
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防爆电气设备入井前,应检查其“产品合格证”、“煤矿矿用产品安全标志”及安全性能;检查合格后,就可以入井。()
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