
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…