Question 3021 of 749 · Maryland Journeyperson Electrician Exam
What is the maximum OCPD rating for which the next size up rule may be used?
Exactly one answer is correct.
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Correct answer to question 3021
- B: 800 A
Explanation
The next higher standard rating may be used only if that rating does not exceed 800 A. Above 800 A, the conductor ampacity must be equal to or greater than the OCPD rating. See 240.4(B) and 240.4(C).
More questions: Feeders and Overcurrent Protection
- 3022A feeder supplies 100 A of continuous load and 30 A of noncontinuous load. What is the minimum feeder conductor ampacity before any adjustment?
- 3023What is the role of a supplementary overcurrent protective device?
- 3024Unless specifically permitted elsewhere, what is the maximum OCPD for 12 AWG copper conductors?
- 3025A feeder conductor has an ampacity of 115 A and does not supply receptacles for portable loads. What is the largest standard OCPD permitted under the next size up rule?
- 3026GFPE is required for a feeder disconnect rated 1000 A or more on which system?
- 3027Unless specifically permitted elsewhere, what is the maximum OCPD for 14 AWG copper conductors?