On Sat, 14 Jul 2007 16:22:25 GMT, "peter" wrote:

110V = Japan
120V = USA / Canada
220V = Thailand and other Asian (+ some European?)
240V = UK and other European and Asian locations

So why did the US deviates from UK? To show we really are independent?

Didn't the US set up AC systems first? So that the UK differed from
the US? All I know at the moment is that Steinmetz patented a
system early in 1895.