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Why is surge protection important?
Surge protection is important because even small surges or spikes can eventually destroy or affect the performance of electronic equipment such as garage door openers, televisions and computers
Damage can occur instantaneously or over time, as small surges gradually degrade internal circuitry. The common use of microprocessors (chips) in home electronics increases the need for surge protection because these chips are very sensitive to voltage fluctuations.
What causes surges and spikes?
Surges and spikes are increases in "normal' electrical line voltage, often caused by a change in demand for electricity, such as when a large appliance in switched on. A surge typically measures less than 500 volts and lasts less than two seconds. A spike is much shorter in duration - less than one-thousandth of a second- but can measure into the thousands of volts. Either type of disturbance can damage electronic equipment beyond repair. Other causes of surges and spikes include turbulent weather and electric company maintenance.
How do surge protectors work?
Surge protectors act like a sponge, absorbing dangerous excess voltage and preventing most of it from reaching electronic equipment. Like a sponge, surge protectors have a limited capacity to absorb. Once the capacity is reached, the unit is no longer able to protect and should be replaced.