Courtesy of www.MikeHolt.com. Based on the 2023 NEC. Question: Grounding electrode conductors smaller than _____ shall be protected in rigid metal conduit, IMC, PVC conduit, electrical metallic tubing ...
Aluminum grounding conductors cannot be in contact with earth, masonry, or subjected to corrosive conditions. When used outdoors, the termination to the electrode must not be within 18 inches of earth ...
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