romex ampacity

[n84jrnation]

does romex have a spicific ampacity chart or does it fly on anything. i was told nm romex has to be on 60 degree ampacity.

 

[Ponchik]

does romex have a spicific ampacity chart or does it fly on anything. i was told nm romex has to be on 60 degree ampacity.

For derating purposes you can use the 90 degree column.

 

[augie47]

Check 334.80. It gives a detailed explanation of the ampacity and termination ratings.