When you think about it, not having a third-wire ground at all is the ultimate ground fault. A GFCI does not require an ...

The case becomes an extension of that live wire. This is called a fault. But the metal case is connected to an electrical path consisting of the ground wire in the power cord plugged into the ...

Without the earth wire, if a fault occurs and the live wire becomes loose, there is a danger that it will touch the metal case. The next person who uses the appliance could get electrocuted.

Electrical Grounding is defined as the process of transferring the immediate discharge of electricity directly to the Earth with the help of a low-resistance wire. Electrical grounding was invented as ...

When an electric current passes through a metal wire, a magnetic field forms around that wire (see diagram at right). Likewise, a wire passing through a magnetic field creates an electric current ...