A whole house surge protector will protect your home from nearby lightning strikes and power surges from the outside. However, power surges are often caused by some of the high-powered devices in your home, such as your air conditioner or refrigerator. Any devices that require a lot of power to cycle on and off may cause enough of a power surge to adversely affect delicate equipment. So a having a surge protector on your computer equipment is always a good idea.
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