12kV feeder installation

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BRaley

BRaley

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Location
San Diego, CA
We are getting ready to install a couple of new generators. The generators are 480V but we are going to step that up to 12kV in order to feed 3 substations down stream. I just need to verify that the 12kV feeders can be ran in EMT inside the building. I've looked through the 2005 NEC and haven't found anything that says we can't. The question that has been raised is whether or not it needs to be ran in rigid conduit. The conduit is going to be racked in the ceiling, free from potential damage and the environment is not in anyway a hazardous location. Any information would be greatly appreciated. Thanks.
 
Below allows the use of multiple raceways for aboveground. One personal note would be to get large danger high voltage stickers for the raceways throughout the run.

Rick

300.37 Aboveground Wiring Methods.
Aboveground conductors shall be installed in rigid metal conduit, in intermediate metal conduit, in electrical metallic tubing, in rigid nonmetallic conduit, in cable trays, as busways, as cablebus, in other identified raceways, or as exposed runs of metal-clad cable suitable for the use and purpose. In locations accessible to qualified persons only, exposed runs of Type MV cables, bare conductors, and bare busbars shall also be permitted. Busbars shall be permitted to be either copper or aluminum.
 
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