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A ring ground is typically constructed from a fairly large wire that is buried at least a few feet underground. The ring ground will usually encircle the entire building that it is trying to protect. The ring ground is used as the base of the entire building's ground system, and all components of the building's ground system, including the ...
[12] [11] [14] [15] AWG 8 to AWG 10 soft-drawn copper wire is typically used, buried 4–10 inches deep. [14] For AM broadcast band antennas this requires a circular land area extending from the mast 47–136 meters (154–446 ft). This is usually planted with grass, which is kept mowed short, as tall grass can increase power loss in certain ...
A grounded wire is sometimes strung along the tops of the towers to provide lightning protection. An optical ground wire is a more advanced version with embedded optical fibers for communication. Overhead wire markers can be mounted on the ground wire to meet International Civil Aviation Organization recommendations. [7]
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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For instance, instead of 14 AWG (American wire gauge) copper wire, aluminium wiring would need to be 12 AWG on a typical 15 ampere lighting circuit, though local building codes vary. Solid aluminium conductors were originally made in the 1960s from a utility-grade aluminium alloy that had undesirable properties for a building wire, and were ...
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