Transmission tower
Structure used to support an overhead power line / From Wikipedia, the free encyclopedia
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A transmission tower (also electricity pylon, hydro tower, or pylon) is a tall structure, usually a lattice tower made of steel that is used to support an overhead power line. In electrical grids, transmission towers carry high-voltage transmission lines that transport bulk electric power from generating stations to electrical substations, from which electricity is delivered to end consumers; moreover, utility poles are used to support lower-voltage sub-transmission and distribution lines that transport electricity from substations to electricity customers.
Type | Structure, lattice tower and overhead power line |
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First production | 20th century |
There are four categories of transmission towers: (i) the suspension tower, (ii) the dead-end terminal tower, (iii) the tension tower, and (iv) the transposition tower.[1] The heights of transmission towers typically range from 15 to 55 m (49 to 180 ft),[1] although when longer spans are needed, such as for crossing water, taller towers are sometimes used. More transmission towers are needed to mitigate climate change, so in the 2020s transmission towers became politically important.[2][3]