If this topic has already been discussed, please point me in the direction of that thread.
In table 310.16 it shows 14AWG Cu as having ampacities ranging from 20-25A depending on temp ratings.
In 240.4(D)(3) (referring to over current protection) it says "14 AWG Copper. 15 amperes"
There are some situations that I would like to use 14AWG on a 20A breaker.
Can any one give me a good explanation of why the extra buffer is put in there?
The same question would apply to 12 and 10AWG respectively.
Thanks,
In table 310.16 it shows 14AWG Cu as having ampacities ranging from 20-25A depending on temp ratings.
In 240.4(D)(3) (referring to over current protection) it says "14 AWG Copper. 15 amperes"
There are some situations that I would like to use 14AWG on a 20A breaker.
Can any one give me a good explanation of why the extra buffer is put in there?
The same question would apply to 12 and 10AWG respectively.
Thanks,