Transformer conductors

[bjb]

I was asked this question and could not find an answer in the transformer section. I'm thinking it may or may not be in general wiring section.
The question was: Can the primary and secondary conductors coming from the transformer which is 480V to 240V be in the same raceway? I don't know any more about the existing installation than this. Can anyone give me a code ref if this is a violation? Thanks

 

[jim dungar]

It is not a violation for general purpose transformers.

 

[sparkcontrol]

as long as both feeders are the same insulation it is ok to have them in the same raceway:happyyes:

 

[maghazadeh]

as long as both feeders are the same insulation it is ok to have them in the same raceway:happyyes:

I agree and I like to add that derating factor will kick in and apply here.