230v three phase. My electrician here in Michigan informed me that they do not have the standard 110/220 that I was used to in Connecticut. Their 110 outlets are rated minimum 120v. Their 220 outlets are rated minimum 230v. Skeptical, We tested every outlet after the install was complete and sure enough they all read a bit higher than 120v and 230v.
Thats odd. Ive only seen and heard of (In the U.S.) 120v, 240v both single phase. 208v and 480v both 3 phase(common industrial voltages). 208v is 120v each leg to neatral. 480v is 277v each leg to neutral. The U.S. hasnt had "230v" for decades and of course before that it was 220v. Its 240 vac which is across L1 and L2 leg of a home and some smaller industrial setups that doesnt require alot of amperage. I am in the midwest (Indiana) and worked alot in Industrial in Illinois where im originally from before I came to Indiana.