Derating for ambient temperature has to do with the ampacity that the conductors can carry. We're not trying to do anything related to ampacity. We are simply trying to figure out how much stuff we can put in the box.
@@constructionseminars4197 Thank you, I appreciate the reply. I'm new to NEC, and was already aware of ampacity derating, and now that I'm learning about box fill I just wondered if there's something in the code that I haven't seen yet re temp and boxes. But that clears it up for me. Thanks! Great resource here!!
Great explanation and easy to understand. Good job!!
This is fantastic. New sub. The instructor is very good. Question .. are there no deratings for ambient temperature?
Derating for ambient temperature has to do with the ampacity that the conductors can carry. We're not trying to do anything related to ampacity. We are simply trying to figure out how much stuff we can put in the box.
@@constructionseminars4197 Thank you, I appreciate the reply. I'm new to NEC, and was already aware of ampacity derating, and now that I'm learning about box fill I just wondered if there's something in the code that I haven't seen yet re temp and boxes. But that clears it up for me. Thanks! Great resource here!!
guys... im cooked.
what about calculations for LB etc.. splicing?
inside the conduit body the Cubic inches are listed - other codes to be considered in this application.
That last question where the wires passed through the box, if the wires are shorter than 12inches shouldnt the answer be 11 #14 awg conductors
There are 11.4 cubic inches available. Each 14 AWG conductor occupies 2 cubic inches. 11.4/2= 5.7 or 5 conductors.
@@constructionseminars4197 So if the answer would have came out to 5.8, then my total #14 wires would have been 6 of them.
Is that correct ?
@@loveitloud100 No, you cannot round up, there's not room for the sixth conductor. The answer is 5