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But this does not change the need for adequate conductor size to any given piece of equipment in case of a fault. Lightning protection is provided by bonding the multipoint ground grid to one or more grounding rods under or at the perimeter of the building, and then up to the lightning rods. If the building has significant metal framing ...
The halo is connected to the main building ground, which may include an underground ring ground outside the building, with vertical conductors especially in the corners of the building. Electrical equipment is also often placed in fully enclosed metal cabinets, which function as Faraday cages to further protect the equipment. The halo may be ...
The large area is required to dissipate the high current of a lightning strike without damaging the system conductors by excess heat. Since lightning strikes are pulses of energy with very high frequency components, grounding systems for lightning protection tend to use short straight runs of conductors to reduce the self-inductance and skin ...
A large electrical room may have extensive provisions for grounding (earthing) and bonding enclosures of electrical equipment to prevent stray voltage and danger of electric shock, even during faults in the electrical system. Lightning protection requires different measures than
A lightning protection system is designed to protect a structure from damage due to lightning strikes by intercepting such strikes and safely passing their extremely high currents to ground. A lightning protection system includes a network of air terminals, bonding conductors, and ground electrodes designed to provide a low impedance path to ...
Grounding connectors. Connectors for earthing installation are a means of communication between the various components of the earthing and lightning protection installations (earthing rods, earthing conductors, current leads, busbars, etc.). For high voltage installations, exothermic welding is used for underground connections.
Lightning and Earthing protection systems are essential for the protection of humans, structures, protecting buildings from mechanical destruction caused by lightning effects and the associated risk of fire, Transmission lines, and electrical equipment from electric shock and Overcurrent. [6]
A single improvement will often reduce both emissions and susceptibility. Grounding and shielding aim to reduce emissions or divert EMI away from the victim by providing an alternative, low-impedance path. Techniques include: Grounding or earthing schemes such as star earthing for audio equipment or ground planes for RF. The scheme must also ...