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How to protect your devices from power surges

A power surge is a brief overvoltage event that can damage electrical devices and is a common cause for failure of electrical equipment.  According to the National Electrical Manufacturers Association, the average home has $15,000 worth of equipment that can be damaged by power surges.

Power surges are caused by internal and external sources. It is estimated that 80% of power surges are caused by internal sources. Internal sources are: large appliances turning on/off, faulty wiring or loose connections, overloaded circuits, short circuits, ground faults, and power recovery. External sources are: lightning, damage to power lines, and utility power grid switching.

Home owners should install Type 1, Type 2, and Type 3 power surge protection devices for maximin electrical device protection.

Type 1 – Permanently connected power surge protection device. Protects against external and internal power surges. May be installed inside or outside the home.

Type 2 – Permanently connected power surge protection device in, or next to, the breaker box. Protects against internal and external power surges.

Type 3 – Point of use power surge protective device. Must be used in conjunction with Type 1 or Type 2 power surge protection devices to meet the new 2020 national electrical code requirements.

Starting in 2020, all new and renovated homes are required to be protected by listed and approved Type 1 or Type 2 power surge protection devices.

Mike Battaglia is President of Next Smart Homes.

Mike Battaglia

Author Mike Battaglia

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