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Hardware >
Power Generation Equipment >
Power Supplies >
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ALSO CALLED:
Surge Protectors,
Suppressors
DEFINITION: See also Uninterruptible power supply .A surge suppressor (sometimes optimistically called a "surge protector") is a device inserted in the alternating current ( AC ) utility line and/or telephone line to prevent damage to electronic equipment from voltage "spikes" called transients. A more accurate term for this type of device is "transient suppressor." A typical surge suppressor is a small box with
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SURGE SUPPRESSORS DEFINITION (continued):
several utility outlets, a power switch, and a 3-wire cord for plugging into a wall outlet.In most countries where electronic equipment is used, the effective AC utility voltage is 110 to 120 volts; the peak voltage is on the order of plus-or-minus 160 to 170 volts at a frequency of 60 hertz . But transients, which arise from various causes, commonly reach peak levels of several hundred volts. These pulses are of short duration, measured in microseconds (units of 10 -6 second), but in that time, they can cause hardware to malfunction. The worst type of transient occurs when lightning strikes in
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