Question

what is earthing write its two advantages​

Answer 1

Answer:

Electrical Earthing

Definition: 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.

Importance of Earthing

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.

elctrical-earthing-1When the fault occurs the fault current from the equipment flows through the earthing system to the earth and thereby protect the equipment from the fault current. At the time of the fault, the earth mat conductors rise to the voltage which is equal to the resistance of the earth mat multiplied by a ground fault.

electrical-earthing-2The contacting assembly is called earthing. The metallic conductors connecting the parts of the installation with the earthing are called electrical connection. The earthing and the earthing connection together called the earthing system.

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Answer 2

Answer:

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.

2 advantages of earthing are:-

●It prevents electric shock.

●It prevents damage to appliances by preventing excessive current glowing in a circuit.