CNewhouse Posted February 26 Report Share Posted February 26 (edited) The subpanel at today's inspection was in the same building as the service panel. The subpanel had a 3 wire feed and bonded neutrals. This has never been allowed, correct? If I'm understanding this correctly, this could only be done pre-2008 when the subpanel was in a detached building and had its own grounding electrode? What is the concern, functionally? Would there be an issue clearing faults? I understand the implications of bonding neutrals downstream of the service equipment in general, but get fuzzy as to why it was accepted in detached structures under certain circumstances (but not in the same structure). Edited February 26 by CNewhouse 1 Quote Link to comment Share on other sites More sharing options...
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