Neutral Identification with Two Different Systems

[infinity]

This one has always confused me. I have a building with two different systems, 480Y/277 and 208Y/120. If there is no point in the structure where these two system occupy the same box, enclosure, raceway, etc. can the neutrals of the two systems be the same color, i.e.-white?

 

[don_resqcapt19]

Yes, the rule does not require that the grounded conductors be identified by system unless they are in the same raceway or enclosure.

(D) Grounded Conductors of Different Systems. Where grounded conductors of different systems are installed in the same raceway, cable, box, auxiliary gutter, or other type of enclosure, each grounded conductor shall be identified by system. Identification that distinguishes each system grounded conductor shall be permitted by one of the following means: ...