On 10 Oct 2011, at 17:15CEST, [email protected] wrote:
> in the US we have a standard of 120/240
> with the 120 as the appliance voltage
> the British and others use 220 for a standard
> does that mean that 440 is used for the big power draws
> we would place our clothes dryers on 220 do you have 440
> in general use in the home
Bob,
(Warning: my comments are based on what I remember from the early 2000s. My
copy of the UK wiring regulations is rather old. Can anyone provide more
up-to-date information?)
UK was 240 but is now officially 230 (EU harmonisation). Normal domestic
appliances use 230V. Standard 3-pin socket outlets are limited to 13A. For
higher current, such as for an electric cooker, a separate fixed feed - not via
a plug and socket - is required. A clothes dryer would be designed to take a
maximum of not more than 13A at 230V.
This is all single phase. Very occasionally you may find a 3 phase supply in
the home, but the supply companies don't like providing it. If I remember
correctly, additional regulations apply for 3 phase Such supplies are usually
four wire (3 phases and neutral) with 240 from each phase to neutral and 415
between phases.
John F5VLF/G3PAI
PS France was 220 but is now officially 230.
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