昆明惠博电缆桥架厂

电缆桥架安装的接地问题研究

电缆桥架安装的接地问题研究
一、存在的问题
（1）按要求规定，电缆桥架不超过三十米的应该有大于或等于两处接地，施工中一般把末段接地给忽略了。超过三十米的电缆桥架每隔二十到三十米就要增加一处接
地。
（2）电缆桥架接地线截面必须满足要求，消除安全隐患。
（3）关于非镀锌金属电缆桥架，要设置专用的接地螺栓。
（4）避免电缆桥架的支架漏接地。
二、整改措施
（1）电缆桥架订购方要向生产方提出在电缆桥架本地设置专用接地螺栓。
（2）在电缆桥架施工设计图纸中明确连接位置和接地截面
三、总结
   电缆桥架是电缆线路的外露的可导电部分，必须保证接地的可靠性。在现场施工中，不但要做好接地线截面的正确选择，还要做好电缆桥架与接地干线的可靠性连接。

Research on grounding problem of cable bridge mounting.

I. existing problems.

(1) in accordance with the requirements, the cable bridge shall be no more than 30 meters and shall have more than or equal to two grounding, which shall generally be neglected in the construction. More than 30 meters of cable bridge will be added every 20 to 30 meters.

The ground.

(2) the grounding wire section of the cable bridge must meet the requirements and eliminate the safety hazards.

(3) for non-galvanized metal cable bridge, special grounding bolts shall be set.

(4) avoid leakage grounding of the bracket of cable bridge.

Rectification measures.

(1) the cable bridge ordering party shall present to the manufacturer the special grounding bolts installed locally on the cable bridge.

(2) specify the connection position and grounding cross section in the design drawing of cable bridge.

Third, summary

The cable bridge is the conductive part of the exposed part of the cable line, and the grounding reliability must be guaranteed. In the field construction, it is necessary to make the correct choice of the grounding line section and the reliability connection of the cable bridge and the grounding trunk.