I have a retrofit suggestion by an owner, for comment by the forum. There is an existing 277V in-ground uplight that illuminate large metal sculpture located indoors. They want to install a 120V receptacle at top of sculpture but there are no 120V circuits anywhere close by to tap from. Suggestion is to tap the 277V circuit at base of sculpture and run 277V circuit in flex metal conduit up to a small transformer mounted and hidden at top of sculpture that would serve the receptacle. Transformer would be protected by fused switch at top of sculpture, and grounded via insulated copper ground to base of metal sculpture which is grounded. It looks inherantly wrong to me, and have been looking for code that would prevent this installation (210.6, etc) but have not found anything. I thought there was an article that prohibited 277V wiring under 8-0" height in public areas...but maybe that went away?
Any help appreciated.
Any help appreciated.