Transfer of the immediate discharge of the electrical energy directly to the earth by means of the low resistance path is known as the earthing.

Main objective of the earthing system in plant is described as below:

• It provides low impedance path to ensure the proper function of system under fault condition

• It ensures that personnel are not exposed to unsafe potential due to uncleared fault

• It ensures compliance to EMC requirements

• IS earth avoids ignition sources in Hazardous Area.