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电缆桥架安装常识

2018-01-05

电缆桥架按电力施工规范要求应进行良好接地,对于镀锌电缆桥架无须有专门接地装置,其本体即可作为接地干线;对于表面进行非金属处理的桥架则必须有专门的接地装置;桥架的接地线可用VV-16mm2电缆或等截面的...

怎样计算桥架接地的数值?

2018-01-05

根据有关规定的规范性,用桥架进行良好的接地,要注意以下几个步骤:(1)在桥架直接板上的,每个固定螺栓接触电阻,应小于0.005Ω,此时作接地干线的,可使用桥架,结合每个桥架的电阻值,可按下式计算:r=...

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