My assumption entirely until now. But My wife and my daughters all tell me that offices and schools do protect their computer banks with UPS, or at least something the like. So maybe just because the PC market in UK doesn't go in for it in general, maybe that is because most PC owners aren't regarded as caring that much about reliability and anyway would baulk at the cost. However I would agree that we in UK don't get much variable voltage, provided your domestic property isn't either in some remote country setting or perhaps sited next to some lonesome little industrial estate, your gonna get reliable voltage all the time. But it's the spikes in current, and those computer crashes due to even momentary power cuts that are the concern for me. If I can protect my computer(s) with an UPS for a reasonable cost it's probably worth the investment to save time and trouble, but if the cost of an adequate UPS is too high, then I will have to accept the risks.
And no. We do not use 250V in Europe.
The UK is nominally 240V 50Hz, while continental Europe is mostly nominally 220V 50Hz
The reasonably short lengths of transmission lines, few electrical storms, and very tight regulation of the generating industry here means that the supply is rarely out of spec and damage to electrical equipment is rare. I personally do not know anyone who filters their computers power supply.
derek
So for the moment I need to know how to judge what ratings to allow for an UPS
John
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John Richard Smith
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