Dissimilar voltages in the same raceway

[calvin]

Are you allowed to have 208 volt circuits and 277 volt circuits in the same raceway.

 

[iwire]

Re: Dissimilar voltages in the same raceway

2002 NEC 300.3(C)(1)

 

[don_resqcapt19]

Re: Dissimilar voltages in the same raceway

If you do this please don't forget about the identification rules in 210.4(D).
Don

 

[ryan_618]

Re: Dissimilar voltages in the same raceway

Don I agree with your post, but what if they were not multi-wire branch circuits? I think identification of voltage system should not be required only on a multi-wire circuit. Just my two cents.

 

[tom baker]

Re: Dissimilar voltages in the same raceway

Ryan, there is a proposal for the 05 NEC for just what you stated.

 

[ryan_618]

Re: Dissimilar voltages in the same raceway

Originally posted by tom baker:
Ryan, there is a proposal for the 05 NEC for just what you stated.

 

[websparky]

Re: Dissimilar voltages in the same raceway

Let's not forget NEC 2002 200.6(D) for grounded conductors!

 

[don_resqcapt19]

Re: Dissimilar voltages in the same raceway

And contrary to popular opinion, you can't use white for the grounded conductor of one system and gray for the second system when the conductors are in a common raceway or enclosure.
Don

[ August 10, 2003, 10:33 PM: Message edited by: don_resqcapt19 ]