(1) Below permanent moisture level. If practicable, pipe electrodes must be embedded below the permanent moisture level and be free from nonconductive coatings such as paint or enamel. Exception: A ...
In this episode, Russ reviews a questionable ground rod installation. This installation violates the requirements set forth in Sec. 250.53 (G) of the 2014 NEC.
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
反馈