Term of the Moment


Look Up Another Term

Definition: power surge

An oversupply of voltage from the power company that can last up to 50 microseconds. Although surges are very short in duration, they often reach 6,000 volts and 3,000 amps when they arrive at the equipment. Power surges are a common cause of damage to computers and electronic equipment. See power swell, spike, sag and surge suppression.