Question 3011 of 731 · Texas Journeyman Electrician Exam
A 400 A feeder OCPD protects a feeder. Field-installed 10 ft tap conductors leave the enclosure. What is the minimum tap ampacity?
Exactly one answer is correct.
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Correct answer to question 3011
- B: 40 A
Explanation
One-tenth of 400 A is 40 A. The tap must also be at least the combined calculated load and not less than the rating of the device it supplies. See 240.21(B)(1).
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