摘要
基于雷电流的流向和SPD配合特点,分析了不同接地情况下雷电流泄放的特点,提出了配电箱PE排接地的做法建议。分析了雷电流的流向和开关类型,提出了配电箱内进线开关和SPD的相对关系的位置设置建议。最后,分析了SPD连接线和接地线截面的不同规范的规定和实际安装情况,提出了对SPD连接线和接地线截面的做法建议。
Based on the lightning current flow direction and SPD coordination characteristics,this paper analyzed the characteristics of lightning current discharge under different grounding conditions,and put forward some suggestions on the grounding of PE bar of distribution box.The flow direction and switch type of lightning current were analyzed,and the location of the relative relationship between the incoming switch and SPD in the distribution box was suggested.Finally,the different specifications and actual installation of SPD connecting wire and grounding wire section were analyzed,and the practice suggestions for SPD connecting wire and grounding wire section were put forward.
作者
李国会
张晶
LI Guohui;ZHANG Jing(China Southwest Architectural Design and Research Institute Co.,Ltd.,Chengdu 610041,China)
出处
《现代建筑电气》
2022年第11期16-22,31,共8页
Modern Architecture Electric
关键词
SPD
连接线
接地线
PE排
雷电流流向
进线开关
截面
SPD
connecting line
ground wire
PE row
lightning current direction
incoming switch
section
