Tap Conductors

[Pierre C Belarge]

In reading tap conductors (Art 240.2) and some magazine articles, I have come to this conclusion.

There are many conductor sizes that we install directly from overcurrent devices that can be defined as "Tap" conductors.


Such as these typical installations:
6 AWG, Type THHN being fused at 70 amps
4 AWG, Typer THHN being fused at 90 amps
4/0, Type THHN being fused at 250 amps
500 Kcmil, Type THHN being fused at 500 amps.

I never really though about it, but a recent article I read brought this to my attention.

 

[mdshunk]

Can you ellaborate?

 

[charlie]

There are many conductor sizes that we install directly from overcurrent devices that can be defined as "Tap" conductors.

I disagree with a lot of articles and this is another one. The conductors are permitted to be protected above their ampacities under the requirements of 240.4. Therefore, the tap rules of 240.21 may be applied to taps from these circuits or feeders.

 

[Pierre C Belarge]

I disagree with a lot of articles and this is another one. The conductors are permitted to be protected above their ampacities under the requirements of 240.4. Therefore, the tap rules of 240.21 may be applied to taps from these circuits or feeders.

Charlie
Why are you throwing a monkey wrench into my newly formed idea? :wink: :grin:

I have wrestled with the term "Tap Conductor" and its application in wiring for some time now. I am not closed minded to being helped for further this thought, whether it is in concurence with my idea or not.
I sound very firm in this new idea, don't I?

 

[charlie]

I sound very firm in this new idea, don't I?

Yes you do, sort of like fresh oatmeal.

:smile: