天气预报 > 机械 > 变压器的接地线应怎样埋设
变压器的接地线应怎样埋设
更新时间: 2021-01-28 01:08:57  

1、用4×40mm或6×60的热镀锌扁钢从变压器外壳专用接地螺栓引下(如无接地螺栓,则焊接于变压器底座);

2、接地引下线于主接地网的水平接地体抽头三面焊接,水平接地网的敷设深度在600mm~800mm;

3、敷设好的水平接地体,应用素土(不含石块、土块)分层夯实;

4、接地线的材质必须用热镀锌扁钢,根据多年的施工经验,采用冷镀锌扁钢在土壤腐蚀率较大的情况下,一年接地体表面就腐蚀了,这样接地体的接地阻抗就增大了。

关键词: 变压器 地线 怎样 埋设

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