在电力线路周围作业的汽车吊为什么有时没有触及电力线--杨远锋的博客

在电力线路周围作业的汽车吊为什么有时没有触及电力线

[ 2011-8-1 14:35:00 | By: 杨远锋 ]

在电力线路周围空间存在着工频电场。电场强度随着电力线路电压等级的提高而增强，并且愈接近电力线路电场愈强。当汽车吊的一部分（金属吊臂或吊绳或吊篮）逐步接近电力线路时，其与电力线路之间的电场畸变，且电场强度比电场未畸变时更强。汽车吊的一部分接近电力线路（特别是高压电力线路）至一定距离时，在强电场的感应下金属吊体的对地电位迅速升高，甚至使电力线路与金属吊体之间的空气被击穿，而使金属吊体变为带电体。此时地面上的操作人员如果触及金属吊体，人体就要承受与吊体对地电位差相等的接触电压，并导致有电流流过人体，而发生触电现象。所以汽车吊的操作者必须严格遵守操作规程，保持吊体与电力线路之间有符合规定要求的安全操作距离，也可在汽车吊上安装防触电报警控制器作为辅助安全防护措施。

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原创

[ 2016-9-6 17:08:24 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:43:55 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:20:15 | By: 原创(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-8 15:30:36 | By: poegj(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-9 14:58:41 | By: cxosw(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-14 16:53:01 | By: gkosw(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-16 23:41:46 | By: txbfj(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2016-10-20 4:22:35 | By: qgimp(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-20 17:40:43 | By: mrwyc(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-22 4:13:12 | By: captx(游客) ]

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Re:在漫画中识别身边的违章

[ 2016-10-23 13:04:46 | By: iduyc(游客) ]

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