Originally Posted by
kanebear
But it's not uncommon for voltage to run quite far above where it should be. I've seen observed instances of 135 volts here in the US when it should be 110. If something else is on that circuit, it may also be causing voltage spikes that can go WAY beyond 240 volts.
Similar problem here in Thailand, with the 220v supply running anywhere from 160v to 240v+! Add a noisy signal to the equation and computer components suffer greatly. I've now got Automatic Voltage Regulators (AVRs) on all sockets which supply my PCs and satellite boxes which do a good job of filtering the supply, as well as boosting or stopping-down the voltage so I get a nice clean 220v. Oh, and that's then fed through a UPS because of the daily black-outs during the rainy season!