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A power surge, or transient voltage, is a sudden and unwanted increase in voltage that can damage, degrade, and destroy the sensitive electronic equipment in your home or business.


The National Electrical Manufacturers Association estimates that 60%-80% of surges are created when large appliances, like air conditioners, turn on or off.  The most powerful surges are caused by lightning.


A spike in voltage can be harmful to electrical devices in your home if the increase is above the device's intended operating voltage.  This creates heat that can damage electrical components.


To protect your electrical equipment from power surges, install outlet surge suppressors throughout your home and a surge protector at your main circuit panel.