NM CID EL-1 Practice Questions - New Mexico CID EL-1 Electrical Distribution Systems, Including Transmission Lines Examination Exam

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NMAC 14.10.4 amends NEC 250.66(B) so the grounding electrode conductor to a concrete-encased electrode shall not be smaller than:

8 AWG copper 6 AWG copper 4 AWG copper 1/0 AWG copper

Correct Answer:

4 AWG copper

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