Re: Transformer piping
Originally posted by rayshuman:
I cannot find anything specific in the NEC.
This is a good opportunity to point out the NEC is highly non-specific in this regard, and for good reason. If it had a rule or permission for every situation we encountered, it would look something like the old World Book Encylcopedia.
Bottom line, if the NEC doesn't say you can't, then you can. This makes the NEC a permissive document.
Now, as far as your question goes, I don't do large commercial work but each and every transformer I have ever seen was connected with flexible metal conduit.