民用建筑中的电气接地工程在安装施工中常见一些质量问题,应引起高度重视。一、利用柱内两根主筋作接地引下线的安装目前,民用建筑工程,尤其在高层建筑中,多数利用柱子内两根主筋作为引下线,不再另设其他引下线。如何确定柱内哪两根作为引下线为最佳,这就需要考虑几方面的因素。1.柱子上设有断接螺栓。在这种情况下,首先要 Electrical grounding projects in civil buildings often have some quality problems during installation and construction and should be highly valued. First, the use of two main bars in the column for the installation of the ground lead down the current civil construction projects, especially in high-rise buildings, the majority of the use of the two main bars in the column as a downlead, no longer set up another downlead. How to determine which two of the columns are the best guideline is a matter of several factors. 1. Break bolts are provided on the column. In this case, first of all