Voltage Transients

A transient (sometimes called impulse) is an extremely fast disturbance (millionths of a second to a few milliseconds) evidenced by a sharp change in voltage. Transients can occur on your electric, phone, or even cable TV lines. They can be caused by such things as lightning, trees falling on power lines, ice and snow, and cycling equipment ON and OFF. Transients can originate from inside or outside your home. Equipment, such as air conditioning, pump motors, photocopiers, and even electric hand tools can all cause transients when cycled on and off. These impulses are similar to lightning strikes but are much smaller. However, because they can occur frequently, they can slowly cause electronic equipment to break down.

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