(Added bold for empasis...and my spelling is bad )352.12
D) Ambient Temperatures.
Where subject to ambient temperatures in excess of 50?C (122?F) unless listed otherwise...
http://www.carlon.com/2.0 Product Requirements:
Conduit shall be Carlon Plus 40, rated for use with 90? C conductors, UL Listed or approved equal.
5.0 Product Requirements:
Conduit shall be Carlon Plus 80, rated for 90? C conductors, UL Listed or approved equal.
Woodyz said:I guess what I'm asking is do I need to run a #6 for a 40 amp circuit since a #8 tw at 40 amps would be 60 degree c which would exceed the 50 degree c of the pvc. Or are the 2 items treated seperatly.
celtic said:Related question...all other issued aside...
THHN is listed in the 90? col.
THWN is listed in the 75? col.
Aren't they dual rated(THHN/THWN)?
Which col. do you use ~ 90? or 75??
iwire said:Clear as mud...:grin:
iwire said:The "Type 2" info can be found in Note 4 of Table 310.13.
Not a place that it's likely to be seen.
iwire said:Most THWN/THHN is actully THWN/THHN-2
Clear as mud...:grin:
iwire said:In a wet location 75
In a dry location 90
:
That's all on you - I just got the things I wanted fairly squared away, just in time to make a new one for the 2008.celtic said:"1000 things not likely to be seen in the NEC" ...think we can get George to make a FAQ?