Large Industrial site. Owner buys power at 13.8 Volts.
Services coming in close to 900 amps at 13.8.
Another Utility feeds the other half of the site 25KV
Both services are brought down to 480 volts in all areas.
(Also 4160 but N/A ).
Question code wise?
Can two 480 volt feeders ((each from different utility's)) (480 v with ground ( Feeders) be brought to a Transfer Switch ( Power Must keep on Control panels in case of extended outage)[They are already UPS backed up]. Generator is not practical in this application.
(Lot more to it then I can say at this time).
Both Sources are Owner Feeders remember.
Code References>?????
Thank You.