Redsy,

I agree. When I was looking for code sections that would validate or prohibit this I ran across 225.7(B) but again, this is one of the sections that refers to a neutral. I may be wrong in my interpretation, but it seems to me that in this case the grounded conductor would not be a neutral because it does not carry the unbalanced current but rather the sum of the currents.

I think everyone would agree that when given the chance it would be much more practical to use a conventional 120/240V multiwire circuit but I can also envision some situations where something like this might happen. Although if done to certain standards this could be a safe installation, I'm concerned by the fact that there are no standards. Maybe I'm still reading too much into some parts of the code and not enough into others but this really has me frustrated [Linked Image]

Jim