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Originally Posted by Acres per Second
Isn't irregular electrical supply bad for motorized appliances -- like the refrigerator and water pump? Or are they internally protected against power fluctuations?
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It was a good idea to unplug them. Probably most motors will shrug off the dips but not all will. Dropping the voltage to a motor under load may cause it to slow enough (or even stall) such that it will draw more current than usual, for a longer time period than usual, and possibly overheat and/or burn out. Rapid fluctuations in line voltage is often not too good for your PC too.