Question 6055 of 731 · Texas Journeyman Electrician Exam

What is the temperature rating of THWN-2 insulation in a wet location?

Exactly one answer is correct.

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Correct answer to question 6055

  • C: 90 C

Explanation

The -2 suffix indicates the conductor is rated 90 C in both wet and dry locations. Plain THWN is rated 75 C. See the conductor application table in Article 310.

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