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Dead-end towers are used at regular intervals in a long transmission line to limit the cascading tower failures that might occur after a conductor failure. An in-line dead-end tower will have two sets of strain insulators supporting the lines in either direction, with the lines connected by a jumper between the two segments.
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 ...
The tower collapse also destroyed the transmitter building. No one was injured during the incident. Transmission of the digital signal on channel 49 was restored after a brief interruption of power to the tower supporting the digital transmitter and antenna. WNEP's signal on local cable systems and satellite was restored before the end of the day.
A utility pole, commonly referred to as a transmission pole, telephone pole, telecommunication pole, power pole, hydro pole, telegraph pole, or telegraph post, is a column or post used to support overhead power lines and various other public utilities, such as electrical cable, fiber optic cable, and related equipment such as transformers and ...
Conductors are transposed in overhead power lines to reduce transmission losses. Unlike in cables, continuous transposition is impractical, so it is done at a specialized transposition tower. A transposing structure may be a standard structure with special cross arms or maybe a dead-end structure.
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A large transmission line project may have several types of towers, with "tangent" ("suspension" or "line" towers, UK) towers intended for most positions and more heavily constructed towers used for turning the line through an angle, dead-ending (terminating) a line, or for important river or road crossings.