Three elements are needed to make an earthing system.

1. Earth electrode: This is a metal rod or plate buried in the ground to provide a connection to the earth. It is typically made of copper or galvanized steel to ensure good conductivity.

2. Earthing conductor: This is a cable or wire that connects the electrical system to the earth electrode. It is usually made of copper or aluminum to ensure low resistance and good conductivity.

3. Earth connection point: This is the point where the earthing conductor is connected to the electrical system. It is typically located near the main distribution board or switchboard to provide a direct path for fault currents to flow to the earth electrode.

Current path, electrode, and ground