Wire derating due to terminal resistance

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I've heard by temperature [110.14(c)]...but not resistance.

Maybe someone else will know?
 
I've never head of derating the wire for terminal resistance, however I have head of terminals having different ratings depending upon the size of the connected conductor. In some multi-pin connectors, for example, the conductor is expected to carry heat away from the terminal.

-Jon
 
bob said:
Derating may be required due to the terminal temp rating.

I am not sure derating is the right way to say it but I agree that the terminal temp rating could change the capacity of the circuit.
 
Some plan check Boso the Clown from Stantech. I could not find it eithor. I know about temp derating. You know the type, a guy that is mad at the world because he did not get his PS and now hates even himself. Reminds me of the plan check guy who told me to glue a fuseable disconnect to a glass wall for a handycap door that only used 500 VA. Good greef. Talk about the owner coming unglued.
 
kenaslan said:
Has anyone ever heard of derating wire due to terminal resistance???
The concept not only is absent from the NEC, it is entirely meaningless. When you talk about wire and use the word ?derating,? you are talking about the amount of current you are allowed to pass through the wire, under the conditions of installation. The resistance of a terminal point will certainly impact the amount of current that will pass through the wire. Current is equal to the applied voltage divided by the total resistance, and the resistance of the terminal is part of the total resistance. But the resistance of the circuit has nothing to do with the amount of current you are allowed to pass through the wire (i.e., the ampacity).
 
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