A power surge, or transient voltage, is an increase in voltage significantly above the designated level in a flow of electricity. In normal household and office wiring in Australia, the standard voltage is 240 volts. If the voltage rises above 240 volts, there is a problem, and a surge protector helps to prevent that problem from destroying your electronics.

Even if increased voltage doesn’t immediately break your machine, it may put extra strain on the components, wearing them down over time. If the voltage from the outlet rises above the accepted level the surge protector diverts the extra electricity into the outlet’s grounding wire.

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As soon as the extra current is diverted to ground, the voltage returns to a normal level. In this way, only the surge current is diverted, while allowing the standard current to continue powering whatever machines are connected to the surge protector.

Continuous disturbances in the power supply tend to happen without our knowledge, but can substantially compromise sensitive equipment over time.

According to electricity suppliers, power fluctuations are inevitable. That’s where surge protection comes in. Surge protectors should let only a safe amount of electricity through, taking the excess and diverting it safely away from your valuable gear.