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  2. Lightning rod - Wikipedia

    en.wikipedia.org/wiki/Lightning_rod

    A weak point in most lightning diversion systems is in transporting the captured discharge from the lightning rod to the ground, though. [18] Lightning rods are typically installed around the perimeter of flat roofs, or along the peaks of sloped roofs at intervals of 6.1 m or 7.6 m, depending on the height of the rod. [19]

  3. Ring ground - Wikipedia

    en.wikipedia.org/wiki/Ring_ground

    A ring ground is a type of electrical ground that is used to protect buildings and equipment from damage due to electrical surges. Ring grounds are typically used as protection against lightning strikes.

  4. Lightning strike - Wikipedia

    en.wikipedia.org/wiki/Lightning_strike

    A lightning-struck tree in the Toronto Islands, clearly shows the path that the charge took into the ground. Trees are frequent conductors of lightning to the ground. [27] Since sap is a relatively poor conductor, its electrical resistance causes it to be heated explosively into steam, which blows off the bark outside the lightning's path. In ...

  5. Franklin bells - Wikipedia

    en.wikipedia.org/wiki/Franklin_bells

    The lightning rod consists of a metal rod or conductor, typically made of copper or aluminum, that is mounted on the roof of a building and connected to the ground by means of a conductive wire. When lightning strikes, the rod provides a path of least resistance for the electrical charge, allowing it to be safely conducted to the ground rather ...

  6. Ufer ground - Wikipedia

    en.wikipedia.org/wiki/Ufer_Ground

    The extremely dry soil conditions would have required hundreds of feet of rods to be driven into the earth to create a low impedance ground to protect the buildings from lightning strikes. In 1942, Herbert G. Ufer was a consultant working for the U.S. Army. Ufer was given the task of finding a lower cost and more practical alternative to ...

  7. Groundbed - Wikipedia

    en.wikipedia.org/wiki/Groundbed

    The electrodes for electrical grounding are often called ground rods and are often made from steel with a copper clad surface – typically 1 to 2 m long and 20 millimetres (0.79 in) in diameter. These are driven vertically into the ground and bonded together with bare copper wire. [1]

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  9. Lightning arrester - Wikipedia

    en.wikipedia.org/wiki/Lightning_arrester

    Powerline worker performs maintenance of a lightning arrester on an electrical transmission tower in New Brunswick, Canada. A lightning arrester (alternative spelling lightning arrestor) (also called lightning isolator) is a device, essentially an air gap between an electric wire and ground, used on electric power transmission and telecommunication systems to protect the insulation and ...

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