300KVA Utility Transformer

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Can you use the Secondary Side of a 12.47KV-208Y/120V 3P 300KVA as a common gutter to feed a Switchgear and then subfeed your distribution.
State NEC Code section..

See attached Photo
 
Locally, if it were a POCO transformer they would not allow it. I would also say it is a violation of 230.7 but that might be debatable.
 
I think it's a bad practice for the reasoning of 230.7, but I don't think we can call that a raceway, so I can not identify it as a violation.
 
I see two problems with the install. The distance between raceways is less than 24" (314.28(A)2 and the phase conductors are not seperated properly between the entries. (310.4(C). I take it the bottom conduits are bonded to the transformer.

Rick
 
Rick, I questioned the distance, then let it slide as I didn't know the dimensions, but on 2nd look, sizing by conduit to distance, you are correct.
I don't follow you on the 2nd part. Probably because I just don't see it. Can you expound, please ?
 
augie47 said:
Rick, I questioned the distance, then let it slide as I didn't know the dimensions, but on 2nd look, sizing by conduit to distance, you are correct.
I don't follow you on the 2nd part. Probably because I just don't see it. Can you expound, please ?
Click to expand...

The 2nd nipple contains XO and X1 the 3rd nipple contains X1 and X2. Each nipple should contain a full complement of XO-X1-X2-X3. Depending on the length of the nipple, could be a derating issue also. I would question the load side conductors also but cannot follow each close enough.

Rick
 
you have a good eye..... folks here would hope you don't inspect :)
 
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