200 amp service to house

[Jkuhn]

I should be able to de-rate to 83% for my service entrance conductors, correct?

 

[infinity]

Yup but I wouldn't call it derating.

 

[ptonsparky]

‘Permitted ampacity’ might be a better.

 

[Jkuhn]

Thanks guys

 

[kwired]

Yup but I wouldn't call it derating.

Agree. "derating" conductor ampacity results in a larger conductor then needed before the "derating".

In such a case we are allowed a different "adjustment" then what is typically allowed for most anywhere else.