jimdavis
Senior Member
- Location
- salt lake city, UT USA
A colleague of mine is overseeing a new construction tanning salon. The service to the salon will be 208Y/120V. The tanning beds are rated 240V 3 phase. His drawings call out a reverse-fed 240V delta- 208Y/120V transformer feeding a sub-panel to power the beds. I told him he may need to corner-ground the 240V side of the transformer. Looking at 250.20(B)(1) I'm not sure this applies. Any thoughts?