240/208 to a house
This is a house in my town, Oradell NJ, with 3 phase power, 240VAC (center tap to ground) with a wild leg at 208V. Delta open leg, I think it's called. I understand the code no longer permits this, as it says the highest voltage in a new house is not higher than 120V to ground. I think the 3 phase power is for the house central air. House I think dates back to the early 1960's, and maybe the only central air system you could get was a 3 phase (the sort intended for commercial sites and offices?)
Last edited by wa2ise; 10/09/21 03:14 PM.