These changes address underground grounding electrode conductors (GECs), as well as buildings supplied by feeder circuits and the requirements for ferrous metal enclosures containing a GEC. In addition, the objects that grounding electrode conductors and bonding jumpers can connect to have also been clarified. Article 250 Grounding and Bonding Part III. Grounding Electrode System and Grounding Electrode Conductor 250.64 Grounding Electrode Conductor Installation. Grounding electrode ...

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