Question 5024 of 790 · California General Electrician Exam
When does a 4 AWG copper grounding electrode conductor require protection?
Exactly one answer is correct.
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Correct answer to question 5024
- D: Only where exposed to severe physical damage
Explanation
A 4 AWG or larger GEC needs protection only where exposed to severe physical damage. A 6 AWG GEC free from exposure to damage may run along the surface without protection. See 250.64(B).
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