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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* 雷电分为直击雷、感应雷、球形雷。直接劈的是直击雷,造成架空线路产生高电压的是感应雷,进屋的是球形雷
* 喷雾增湿剂可以使静电荷沿<i>绝缘体表面</i>向四周泄漏。油罐车安装接地锁链,是为了泄漏行车过程中产生的静电荷
* 手持电动工具有两种分类方式:按触电保护方式
分类
<del>
按
工作电压
分类
</del>
分类
:I类,II类,III类;防潮程度分类:普通工具、防溅工具、水密工具。
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