At the top of the structure, the conductors are connected to a series of copper or aluminum lightning rods.The conductors are attached to the ground rod welded or connected with a copper mechanical connection.A series of copper or aluminum conductors are outlined across the structure.This conductor is struck first by lightning without hitting the building directly, preventing fire or electrocution. It is a component of the electrical installation protection system and commonly used for overvoltage protection.Ī metal rod is placed on top of a building to protect it from a lightning strike. Surge Protection Devices (SPD) are used for electric power supply networks, telephone networks, ,communication and automatic control buses. It is especially effective for lightning protection of industrial sites, public buildings and sports arenas. It distributes the charge or radiation around the cage’s exterior, it cancels out electric charges or radiation within the cage’s interior.Įarly Streamer Emission (ESE) Lightning is a terminal that is mounted on the top of a structure. It is used for highly exposed buildings housing very sensitive installations such as computer rooms.Ī Faraday cage is a container that anchors electromagnetic radiation. This type of light consists of mesh used across the covering of the roofs and side walls of the structures. These devices apply a pulsed high voltage to an air terminal’s tip which gives positive ground currents going upward meeting descending negative leader strokes. These are metal rods installed over a structure and their terminals are connected to a network of horizontal and vertical conductors. Lightning arresters/surge protection- electrical devices installed in or on a building’s electrical components and designed to protect electrical equipment from the electrical surge that occurs when lightning strikes a nearby power line.ĭifferent types of Lightning Protection Systems.Bonding & Mounting hardware-used to splice or connect between air terminals, cables, ground rods.Ground rods – composed of a corrosion-resistant alloy of copper and steel and are connected to the cables.Main conductor cables-heavy twisted or aluminum copper cable (or thicker) which is connected to the air terminal and/or runs near the ridge or other building high points, routed to the ground.These are set up on the top of a structure. Air terminals- these are metal rods that serve as the first exposure point for lightning strike.The basic components of a lightning protection system includes Internal lightning protection (Electronic systems protection)- protection of damage to vital electronic systems.Ĭomponents of lightning protection system.External lightning protection- channeling the lightning strike in a safe and controlled manner to the earth termination network.Right lightning protection systems enable us to The external and internal lightning protection systems must be balanced to counter the lightning, conduct it to the earth and finally disperse it into the earth. Why do we need a lightning protection system?Ī lightning protection system intercepts the lightning current and diverts it safely to the earth without causing any damage to the structure. These systems create pathways for lightning strikes to travel safely from the top of a structure to the ground with a lightning conductor. They protect the internal electrical components of a building, helping to prevent fires or electrocution. Lightning protection systems are designed to protect structures getting damaged during heavy lightning. The first one caused due to lack of external lightning protection and the second one due to internal light protection Karnataka: 14-year-old boy succumbs to electric shock caused by lightning strike.During lightning struck he tried to remove the phone from the charger resulting in an electric shock and immediate death of the boy.ĭiscussed above are two recent cases, similar instances could be prevented with an effective lightning protection in place.Rajasthan: One dead, nine injured as lightning strikes acid tank at zinc plant- Ten employees present at the scene were burnt due to acid leakage after lightning struck the tank at Hindustan Zinc’s hydro plant.Loss of data/ computer systems/ equipment.Some serious risks associated with lightning are: It affects different components of a structure and can have Thermal, Electrodynamic and Inductive Effects. Lightning strikes and electrical discharges due to nearby lightning can cause considerable damage to a structure and can even cause injury or death to a person.
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