Question 2056 of 844 · Washington 01 Journey Level Electrician Exam
How is the overcurrent protection for each ungrounded service conductor generally sized?
Exactly one answer is correct.
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Correct answer to question 2056
- D: Rating not higher than the ampacity of the conductor, with next size up permitted per 240.4(B)
Explanation
Each ungrounded service conductor needs an OCPD in series with a rating not higher than its ampacity. Exceptions allow the next higher standard rating under 240.4(B) and motor starting values. See 230.90(A).
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