On Thu, 28 Jun 2007 07:45:50 +0100, N Cook wrote:

Could someone direct me to pics of the 2 different types of plug/socket
system used in the USA to differentiate for medium and high power use, I
didn't even realise 220 or 240V was used residentially anywhere in the USA.

http://www.voltec-industries.com/nema_chart.html
https://www.hubbellnet.com/max_htm/t...EMA/front.html
http://nooutage.com/nema_configurations.htm

Hope This Helps!
Rich