Question 3028 of 731 · Texas Journeyman Electrician Exam
Three parallel sets of conductors give a total ampacity of 1140 A. What is the largest standard OCPD permitted?
Exactly one answer is correct.
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Correct answer to question 3028
- C: 1000 A
Explanation
Above 800 A the next size up rule does not apply, so the OCPD must not exceed the conductor ampacity. The largest standard rating not over 1140 A is 1000 A. See 240.4(C) and 240.6(A).
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