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Chemical Earthing

 
All the people living or working in residential, commercial and industrial installations, particularly the operators and personnel who are in close operation and contact with electrical systems and machineries, should essentially be protected against possible electrification. To achieve this protection, earthing system of an installation is defined, designed and installed according to the standardrequirements.

What Is Earthing

The process of connecting metallic bodies of all the electrical apparatus and equipment to huge mass of earth by a wire is called Earthing.
The term earthing means connecting the neutral point of supply system or the non current carrying parts of the electrical apparatus to  the general mass of earth in such a manner that all times an immediate discharge of electrical energy takes place

Objectives of the earthing

     Provide an alternative path for the fault current to flow so that it will  not endanger the user
     Ensure that all exposed conductive parts do not reach a dangerous potential
     Maintain the voltage at any part of an electrical system at a known value so as toprevent over current or excessive voltage on the appliances or equipment