Electrical Earthing
The Fundamental fact of Electricity is that it always flows to the point of lowest potential. Electricity Earthing / grounding ensure that electricity including faults, lighting and electronic noise are flown to
This point with maximum safety to people and at the same time the reliability of equipment is also Maintained.
The earthing / grounding requirement of a power system will vary from those of electrical equipment, lighting protection or for the proper function of electronic equirement.
An Effective low -impedance earthing / grounding system is a vital element and it is crucial in ensuring for personal safety as well as providing reliable protection for electrical / electronics equipment.
Prime Objective of Earthing is to provide a Zero potential surface in and around and under the area where the electrical equipment is installed or erected.
To achieve this objective the non-current carrying parts of the electrical equipment is connected to the general mass of the earth which prevents the appearance of dangerous voltage on the enclosures and help to provide safety to working staff and public.
The function of earthing electrode is to ensure continuous electrical contact with the earth.