Question 5018 of 844 · Washington 01 Journey Level Electrician Exam
A service has 2/0 AWG copper ungrounded conductors. What is the minimum copper GEC to a metal water pipe electrode?
Exactly one answer is correct.
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Correct answer to question 5018
- B: 4 AWG
Explanation
Table 250.66 sizes the GEC from the largest ungrounded service conductor. For 2/0 or 3/0 copper, the minimum copper GEC is 4 AWG.
More questions: Grounding and Bonding
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