Geoffrey S. Mendelson wrote:
The U.K. used to be 240 volts, Western Europe used to be 220, now they
(the entire E.U.) are 230 volts. Except for the freqency, U.S. 240
volt power works fine.

Here in the UK we still are 240V (at least here in the city of Bristol anyway)

A helpful quote from Wikipedia:

"Following voltage harmonisation co-ordinated with CENELEC countries, all electricity
supply within the EU is now nominally 230 V ± 10% (though some countries have
stricter specifications: for example, the UK specifies 230 V +10% ˆ’6%). In practice
this means that countries such as the UK that previously supplied 240 V continue to
do so, and those that previously supplied 220 V continue to do so."

Richard