Question 5052 of 790 · California General Electrician Exam
A service has 3/0 AWG copper ungrounded conductors. What is the minimum copper bonding jumper for the interior metal water piping?
Exactly one answer is correct.
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Correct answer to question 5052
- D: 4 AWG
Explanation
The metal water piping bonding jumper is sized from Table 250.102(C)(1) based on the service conductors. For 2/0 or 3/0 copper the jumper must be at least 4 AWG copper. See 250.104(A).
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