Question 6069 of 749 · Maryland Journeyperson Electrician Exam
The ampacity of NM cable conductors is generally determined using which temperature column?
Exactly one answer is correct.
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Correct answer to question 6069
- A: 60 C
Explanation
NM cable conductors are rated 90 C, but the ampacity must be that of 60 C conductors. The 90 C rating may be used for adjustment and correction calculations. See 334.80.
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