How Do You Test The Ground Resistance Of Electrical Cords?
Resistance is the property of a conductor that reveals how well it conducts electricity. A high resistance in a power cord or other system will lead to efficiency losses, as an excessive amount of energy will be converted to heat. The formula for determining power dissipation in a conductor with a resistance is power = current * current * resistance. Therefore, the higher the resistance, the more power is wasted proportionally. Turn on the multimeter and select resistance mode. Connect one lead of the multimeter to the ground terminal of one side of the electrical cord. Connect the other lead of the multimeter to the other ground terminal on the other end of the electrical cord. The ground terminal is the terminal that is by itself on the plug. The two terminals parallel to each other are the power connectors that provide the energy to the distant appliance. The ground terminal, usually round in shape, provides a low resistance path back to the ground in case of electrical fault. Inter
