480 volt feeder passing through a 208 volt panel

[dmarchand]

I am pretty sure that this is a code violation but I can not find the NEC article.
I have an existing wastewater facility that has a 480 volt panelboard main feeder that is passign through the top corner of the 208volt panel that is installed next to it.

Is this a code violation and what article is this under.

 

[Buck Parrish]

The panel is allowed to be used as a race way. If you have enough room. 312.8
I'm not sure about the different voltages

 

[George Stolz]

Unless the space requirements have been violated (as Buck mentioned), or one or the other is an emergency system, I don't see a violation in the installation described. I wouldn't say it's a great design, but that's easy to say, sight unseen.

 

[acrwc10]

200.6(D) May give you an example that it is allowed.

 

[Ragin Cajun]

Depending on the installation, you could get in trouble with arc fault issues.

RC

 

[Local Electrician]

Depending on the installation, you could get in trouble with arc fault issues.

RC

It is 480 v...................