Here's a question that was on an electrician's test. The student answered (d) as the correct one. He was told he was incorrect?

What is the correct answer?

Note: See 110-5, and that no insulation, or conductor material was given?

Question No. 9: Which of the following statements about the general requirements for number 6 conductors is true?

(a) It is required to be terminated at 75 degree C ampacity.

(b) It is required to be terminated at 60 degree C ampacity.

(c) It must have insulation rated 60 degree C ampacity.

(d) It must have insulation rated 75 degree C ampacity.

I will invite the student to join this board so he can add more on this subject.


Joe Tedesco, NEC Consultant