Question 13053 of 790 · California General Electrician Exam
Three current-carrying 2 AWG THHN copper conductors are installed at 35 °C ambient and terminate on 75 °C rated lugs. What is the maximum load current the conductors may be used for?
Exactly one answer is correct.
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Correct answer to question 13053
- A: 115 A
Explanation
The corrected 90 °C ampacity is 130 x 0.96 = 124.8 A, but the 75 °C termination limits the conductor to its 75 °C value of 115 A. The lower value, 115 A, applies.
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