Actually the mains voltage is only a nominal voltage, and regulations
allow for a percentage variation around that nominal voltage. If you
read the quote below from Wikipedia, you will see that the UK is still
generally outputing 240V, despite what the Daily Mail might like to
say.

In my place I normally get about 240V during the day, and up to 250V at
night - according to the TP.

quote from Wiki:
"Following voltage harmonization all electricity supply within the
European Union is now nominally 230 V ± 10% at 50 Hz [1]. For a
transition period (1995–2008), countries who previously used 220 V will
use a narrower asymmetric tolerance range of 230 V +6% −10% and
those (like the UK) who previously used 240 V use now 230 V +10%
−6%[2]. Note that no change in voltage is required by either
system as both 220V and 240V fall within the lower 230 V tolerance
bands (230 V ±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. However equipment should
be designed to accept any voltages within the specified range.

In the United States[3] and Canada[4], national standards specify that
the nominal voltage at the source should be 120 V and allow a range of
114 to 126 V (-5% to +5%). Historically 110, 115 and 117 volts have
been used at different times and places in North America.[citation
needed] Main power is sometimes spoken of as “one-ten”; however, 120 is
the nominal voltage."

http://en.wikipedia.org/wiki/Mains_electricity

for the whole article.


-- 
bigfool1956

David Ayers
Music is what counts, hifi just helps us enjoy it more
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