井下电钳工安全常识--杨远锋的博客

井下电钳工安全常识

[ 2011-1-9 9:33:00 | By: 杨远锋 ]

1.照明、信号、电话和手持式电气设备的供电额定电压,不超过127 V。

　　2.在进行倒闸操作时，应由操作人填写操作票。

　　3.矿井电力系统中，用户和用电设备按其重要性的不同进行分级，可分为一级负荷、三级负荷、二级负荷。

　　4.年产60000 t以下的矿井采用单回路供电时，必须有备用电源；备用电源的容量必须满足通风、排水、提升的要求。

　　5.不可以带电检修和移动电气设备。

　　6.煤矿井下远距离控制线路的额定电压不超过36 V。

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原创

[ 2016-9-6 17:20:02 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:54:15 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:31:07 | By: 原创(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

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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

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