Difference between revisions of "怎样考取低压电工证理论篇"
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怎样考取低压电工证理论篇
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* 设备漏电,应迅速用绝缘棒拉开隔离开关断开电源,再用二氧化碳灭火器或干粉灭火器灭火。错:应该先断开断路器
* 民用住宅严标安装床头开关。对:老标准老题库这么答,不计较正误
* 使用万用表电阻档能够测量变压器的线圈电阻。错:精度不足
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