what is earthing? explain?
Answers
Earthing is the proper connection of exposed metal parts of an electrical circuit to the ground. ... When the live wire touches the earth wire, large current flows through it and causes the fuse to blow off or circuit breaker to trip and thereby protecting the appliance as well as users.
Plz mark as Brainliest.
The process of transferring the immediate discharge of the electrical energy directly to the earth by the help of the low resistance wire is known as the electrical earthing. The electrical earthing is done by connecting the non-current carrying part of the equipment or neutral of supply system to the ground.
The earthing is essential because of the following reasons
The earthing protects the personnel from the shortcircuit current.
The earthing provides the easiest path to the flow of shortcircuit current even after the failure of the insulation.
The earthing protects the apparatus and personnel from the high voltage surges and lightning discharge.
Earthing can be done by electrically connecting the respective parts in the installation to some system of electrical conductors or electrodes placed near the soil or below the ground level. The earthing mat or electrode under the ground level have flat iron riser through which all the non-current-carrying metallic parts of the equipment are connected.