Name the three normal overloads.
Name two abnormal overloads.
What function do fuses and breakers perform?
The best way to prevent transformers and motors from failing due to overvoltage is to install protection.
When many houses are out of service for several hours on a hot summer day, the excessive load drawn by the houses when they are re-energized is called overload.
The average active power used by a load or loads during a designated time period (usually one hour) is called the average power.
Over a specified time period, the average power divided by the peak power is called the power factor.
The electric power industry accepted standard for calculating cable ampacity is IEEE standard number.
Name two sources of overvoltage.
What is the general term for devices that are commonly used to protect electrical circuits from overvoltage?
Devices used to protect high voltage circuits from lightning are commonly referred to as surge protectors.