derating factors must be applied when the number of current - carrying conductors in a wireway exceeds which…
derating factors must be applied when the number of current - carrying conductors in a wireway exceeds which of the following?\n3\n15\n20\n30
Answer
Brief Explanations:
In electrical engineering, derating factors are applied when the number of current - carrying conductors in a wireway exceeds 30. This is to account for increased heat generation and reduced ampacity due to the proximity of multiple conductors.
Answer:
D. 30