What kind of damage can a power surge do?
Answered by Discovery Channel
  • Discovery Channel

    Discovery Channel

  1. Surges happen when electrical voltage increases. If the high voltage lasts three nanoseconds (a nanosecond is a billionth of a second), it's a surge. If it lasts only one or two nanoseconds, it's a spike. A high surge or spike can badly damage the electronics in a machine. Too much electrical pressure on a wire heats it up and makes it burn like the filament in a light bulb. Even if your machine survives the surge or spike, the strain on its electronics will may wear them down over time.

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