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What is Maintenance Free Earthing?
Earthing, also known as grounding, is the practice of transferring electrical charges to the ground through low-resistance cables or rods to quickly discharge any stored energy. There are two main types of earthing: maintenance-free earthing and
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Type of Electric Cables & Conductors with Application
Electric power is distributed and used at the utility levels with the help of transmission systems, cables or other smaller conductors. Various type of electric cables is designed for specific requirements. The main aim of every type of electric cable is to conduct electricity or signals to the desired location. ...
Surge Arrester – How does it protect from Voltage Surge?
Surge arresters are protective devices for safeguarding a piece of equipment from over-voltage transients by discharging or bypassing the surge current. It provides a low resistance path to the surge current protecting the system. The surge current can occur usually due to various reasons, like lightning or internal switching events. In ...
Fasteners – Types and Features
Fasteners are hardware components like screws, nuts and bolts that mechanically join two or more objects together. Fasteners are used to create non-permanent joints, that can be dismantled without damaging the joining objects. Unlike fasteners; welding, crimping, soldering are examples of creating permanent joints where the connected objects cannot be ...
Earth Mats – Why do we need them?
An Earth Mat is a mesh formed of bare metallic conductors and buried in shallow soil to provide better safety from touch and step potential. Earth mats are a part of the grounding system implemented in substations, production plants, industrial areas, etc., where high power handling occurs. More efficient grounding ...
Pipe Earthing VS Chemical Earthing – Explained with Diagram
Electrical circuits are involved with an adequate amount of energy to cause electric shock hazards in case of a fault. A fault can occur due to power surges, leakages due to faulty equipment, lightning strikes hitting directly or indirectly and so on. So it is necessary to focus on the ...
How are Earthing and Bonding different?
Earthing and bonding are two technical terms we come across when we deal with the safety aspect of an electrical system. We have all heard about earthing that is done for safety purposes during the electrical installation, but do we give much thought when it comes to electrical bonding. Both ...
How to Use Exothermic Welding?
Exothermic welding, also known as exothermic bonding, thermite welding (TW), and thermit welding, is a welding technique that permanently joins conductors using molten metal. An exothermic reaction of a thermite composition heats the metal, and no external source of heat or current is required. An aluminothermic reaction between aluminium powder ...
Earth Pit – Technical Aspects & Construction
An Earth Pit is a type of enclosure used in earthing systems to access and maintain the earth electrodes and other components of the earthing system. It is a type of underground box, typically made of reinforced concrete, that is installed at the site of the earthing system. The Earth ...
Ground Potential Rise Study
Scope: The result of a ground electrode impedance, referenced to remote earth, and the current that flows through that electrode impedance is known as Ground Potential Rise or Earth Potential Rise (as specified in IEEE Standard 367). The maximum electrical potential that a (substation) grounding grid can achieve relative to ...
