On 4-6-2009 22:52, Mike Raiford wrote:
> Orchid XP v8 wrote:
>> Darren New wrote:
>>> Invisible wrote:
>>>> OK, so what *is* the correct mains voltage in the UK?
>>>
>>> Don't forget it's AC, so you also have to figure out whether you mean 
>>> peak, RMS, or what. Plus you should check the frequency.
>>
>> 230V RMS at 50 Hz. (I don't see any sources stating what the allowable 
>> variation in frequency is.)
>>
> 
> Frequency shouldn't vary much. Some alarm clocks are dependent on the 
> frequency of the power feed.
> 
Can't find a reference for the tolerance of the frequency even though 
the amplitude tolerance is easy to find. :( Tolerance is at any time a 
few percent. Yet, there should be (almost?) exactly 4320000 cycles in 24 
hours (assuming 50Hz). Under most circumstances the frequency is 
actually very close to 50Hz except at times of (unpredicted) peak 
currents, but that will be compensated later.

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