250.53(A)(2) Ground Resistance Measurement – https://www.MikeHolt.com/bonding. NEC 250.53(A)(2) requires that a single grounding electrode be supplemented by an additional electrode but, is that always the case? Learn the exceptions as well as what qualifies as a supplemental electrode as our panel of experts discuss this topic.

This video is extracted from Mike Holt's 2020 Bonding and Grounding Textbook and DVD program, for more information visit https://www.MikeHolt.com/bonding or call 888.632.2633.

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