Is there an instance where you wouldn't have to derate?

[Jonathan23]

I was wondering if there is an instance where a run of conduit is short enough that you would not have to worry about derating the conductors inside the conduit? Is there a section in the code that would give me this answer? Any help will be helpful.

 

[HEYDOG]

I was wondering if there is an instance where a run of conduit is short enough that you would not have to worry about derating the conductors inside the conduit? Is there a section in the code that would give me this answer? Any help will be helpful.

310.15(c)(1)(b)

 

[Dsg319]

I was wondering if there is an instance where a run of conduit is short enough that you would not have to worry about derating the conductors inside the conduit? Is there a section in the code that would give me this answer? Any help will be helpful.

24” and less

 

[Dennis Alwon]

I was wondering if there is an instance where a run of conduit is short enough that you would not have to worry about derating the conductors inside the conduit? Is there a section in the code that would give me this answer? Any help will be helpful.

I don't know if you are aware of this but you can de-rate from the 90C column as long as the load is not greater than the 75C column (assuming you have 90C wires)

 

[Jonathan23]

24” and less

Does it say that somewhere in the codebook and if so where could I find that?

 

[augie47]

Does it say that somewhere in the codebook and if so where could I find that?

Depend son the Code cycle.. In 2020 it's the location noted in Post #2 In '17 it's at 310.15(B)(3)(2)