Parallel Sets of GEC

[david luchini]

Can you use bus bar as a GEC?

Yes.

If so how do you size it? All that is in T250.66 is wire conductor sizes and it doesn't say "or equivalent".

It's not explicit, but I would say the bus bar has to have an area that is not smaller than the required awg or kcmil.

 

[kwired]

Yes.

Originally Posted by kwired Can you use bus bar as a GEC?



Yes.

Originally Posted by kwired
If so how do you size it? All that is in T250.66 is wire conductor sizes and it doesn't say "or equivalent".

It's not explicit, but I would say the bus bar has to have an area that is not smaller than the required awg or kcmil.



I don't see a problem myself, but yes it is not explicit and some of us like to read between the lines when it favors something we want

 

[david luchini]

I don't see a problem myself, but yes it is not explicit and some of us like to read between the lines when it favors something we want

Well, thinking about it logically, I don't think you would find a busbar that is smaller than the largest required GEC size, so it shouldn't be an issue.

 

[Chamuit]

So the inspectors stretch their amendments to cover other raceways even though they have only addressed EMT.


Roger

Pick your battles. The two instances that it happened the effort to "fix" was lesser than the time (delay) it would have taken to dispute. Also, they weren't inspectors I was familiar with.