Question 8053 of 731 · Texas Journeyman Electrician Exam

A 20 kW, 240 volt single-phase generator supplies a distribution panel. What is the minimum ampacity of the conductors from the generator terminals to the first overcurrent device?

Exactly one answer is correct.

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Correct answer to question 8053

  • C: 95.8 A

Explanation

The nameplate current is 20,000 W divided by 240 V, which is 83.3 A. Section 445.13(A) requires 115 percent, so 83.3 A times 1.15 gives 95.8 A. 104.2 A would result from wrongly using 125 percent.

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