NM CID ES-7 Practice Questions - New Mexico CID ES-7 Telephone Communication Systems And Telephone Interconnect Systems Examination Exam

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If a building has no intersystem bonding termination or other grounding means listed in NEC 800.100(B), a communications-circuit ground rod used under 800.100(B)(3) shall be not less than:

4 feet long and 3/8 inch in diameter 5 feet long and 1/2 inch in diameter 8 feet long and 5/8 inch in diameter 10 feet long and 3/4 inch in diameter

Correct Answer:

5 feet long and 1/2 inch in diameter

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