Type Of Electrical Equipment In Use

Earthing is an aspect that is highly essential for the protection of people and machines alike. It is a safety measure that has become inevitable in a world where every item that you touch and operate uses electricity. A proper earthing system prevents the contact with dangerous electrical voltage thus creating a safe atmosphere for both man and machines. Lightning or contact with higher voltages can raise the voltages of the distribution system. Grounding provides a substitute path thus protecting from the damages.

There are several types of Earthing Systems that are made available by Earthing System Manufacturers. Depending upon the types of electrical equipment used, the type of grounding is decided. Some types are:

• High Resistance Grounding

This type of grounding is preferred for industrial plants and facilities, which require uninterrupted usage of electronic and electrical equipment like computers and machinery. The system increases the resistance and limits the current flow to a range of 1A to 10A. Thus the mechanical stress in the circuits is lowered which lowers the chances of electrical shocks.

• Solid Grounding

Used extensively in residences, industries and commercial systems, the solid grounding is designed to handle high values of current in the range of 10kA to 20kA. Such a heavy current can cause significant damage to equipment and machines, which can interrupt the functioning of the facility. The Solid Grounding system is equipped with conductors that connect to the ground without any additional impedance.

• Ungrounded Systems

These systems continue to be in use from the mid 1900’s till date. The Ungrounded system does not have an intended connection to the ground. These systems are reliable and offer a low current flow. However, such systems demand regular and vigilant maintenance. It is crucial to detect and repair the line to ground faults in time. A line to ground fault in the power line occurs when the conductor comes in contact with the ground due to flaws of the insulation. The electrical system can suffer significant damage in the occurrence of a second fault.

The various types discussed above will give one an idea about the earthing system that should be designed. A proper earthing system is crucial to ensure the safety of the personnel and equipment. A well planned system is advantageous in the smooth and uninterrupted operation of the facility.