Question 6056 of 749 · Maryland Journeyperson Electrician Exam

XHHW insulation, without the -2 suffix, is rated 90 C in dry and damp locations and what in wet locations?

Exactly one answer is correct.

Show solution

Correct answer to question 6056

  • D: 75 C

Explanation

XHHW is a cross-linked polymer insulation rated 90 C dry or damp and 75 C wet. XHHW-2 is rated 90 C wet and dry. See the conductor application table in Article 310.

Next to question ›