Ampacity Adjustment - 02/26/09 02:11 PM
Can someone explain what is being said in the '05 NEC at 310.15(A)(2) Exception?
Lets say I have a CB with 60 degree terminations and I want to use a wire rated as 90 degree insulation. I want to use the ampacity of the 90 degree rating because it is a long run.
I've never really understood this 100%.
Lets say I have a CB with 60 degree terminations and I want to use a wire rated as 90 degree insulation. I want to use the ampacity of the 90 degree rating because it is a long run.
I've never really understood this 100%.