NM Residential Electrical Inspector Practice Questions - New Mexico CID Residential Electrical Inspector Examination Exam

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Per NEC 2020 250.53(D)(2), a metal underground water pipe used as a grounding electrode shall be supplemented by an additional electrode. The supplemental electrode is permitted to be bonded to which of the following?

A telephone ground rod only The utility meter only if it is plastic Only the water pipe outdoors The grounding electrode conductor, the grounded service-entrance conductor, the nonflexible grounded service raceway, or any grounded service enclosure

Correct Answer:

The grounding electrode conductor, the grounded service-entrance conductor, the nonflexible grounded service raceway, or any grounded service enclosure

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