The UK used to be 240V and many countries in Europe were 220V. The compromise was for everybody to use 230V But what I've heard is that the voltages staid the

The UK used to be 240V and many countries in Europe were 220V. The compromise was for everybody to use 230V But what I've heard is that the voltages staid the same, but 240V is still within spec of 230V with tolerances.