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 ...
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 ...
A lightning conductor is a thick copper wire or rod fixed onto the tallest point of a building and connected to the ground using a long metallic rod. It protects the building from lightning strikes by providing a low resistance path for the current to flow to the earth rather ...
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 ...
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 ...
The electrically conductive connection between the air-termination system and the earth-termination system is the down conductor system. The purpose of down-conductor systems is to safely transport intercepted lightning current to the earth-termination system without causing excessive temperature spikes that could harm the structure. It must be mounted to ensure that ...
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 ...
Scope of Electrical Lugs A cable lug also known as a cable terminal is a component of an electrical device that connects the cable to the device terminals. It simplifies the assembly of personnel, maintenance, and repair processes. A cable lug or connector is used when a permanent connection is ...
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 ...
To grasp the concept of step and touch potential as per IEC 62305-3 (EN 62305-3) How energy dissipates over conductive objects. Some good conductors exist that provide a path to the ground during broken pole or downed wire conditions, such as metal fences, damp soil, and puddles. Other conductors, such ...
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