Question 4106 of 844 · Washington 01 Journey Level Electrician Exam
An 8 AWG copper THHN conductor connects to terminals rated 75 C on both ends. What ampacity may be used for the circuit?
Exactly one answer is correct.
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Correct answer to question 4106
- A: 50 amperes
Explanation
8 AWG copper is 40 A at 60 C, 50 A at 75 C and 55 A at 90 C. The 90 C insulation does not help because the 75 C terminals limit the conductor to 50 A under 110.14(C).
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