A: Most household outlets in the U.S. are 120 volts.Electrical voltage can be difficult to understand, especially when the standards are different in each country. In essence, household voltage is the average amount of electrical energy supplied to an outlet. In the U.S., there are two standard voltages, one for everyday electrical devices and one for heavy-duty appliances. In other parts of the ...

A: Surge protector diverts the excess voltage and current from transient or surge into grounding wire and prevents it from flowing through the electrical and electronic equipments while at the same time allowing the normal voltage to continue along its path. This excess energy can cause damages in electrical and electronic equipments, process control instruments-equipments.Two main functions of th...