The derating factor that must be used when four to six current-carrying conductors are installed in a conduit is ____ percent.
A) 50
B) 70
C) 80
D) none of the above

Name: The derating factor that must be used when four to six current-carrying conductors are installed in a conduit is ____ percent. A) 50 B) 70 C) 80 D) none of the above
Brand: Quizplus
Rating: 4.9 (34 reviews)

Question

Quizplus · Accepted Answer

According to NEC Table 310.15(B)(2)(a), when four to six current-carrying conductors are installed in a conduit, the derating factor is 80%.

The Derating Factor That Must Be Used When Four to Six