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Utility pole
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==Dead-end poles== {{unreferenced section|date=August 2012}} [[File:Dead end riser poles.jpg|thumb|upright|right|Example of dead-end riser poles]] The poles at the end of a straight section of utility line where the line ends or angles off in another direction are called ''dead-end'' poles in the United States. Elsewhere they may be referred to as anchor or termination poles. These must carry the lateral [[tension (physics)|tension]] of the long straight sections of wire. They are usually made with heavier construction. The power lines are attached to the pole by horizontal strain insulators, either placed on crossarms (which are either doubled, tripled, or replaced with a steel crossarm, to provide more resistance to the tension forces) or attached directly to the pole itself. Dead-end and other poles that support lateral loads have [[guy-wires]] to support them. The guys always have [[strain insulator]]s inserted in their length to prevent any high voltages caused by electrical faults from reaching the lower portion of the cable that is accessible by the public. In populated areas, guy wires are often encased in a yellow plastic or wood tube with reflectors attached to their lower end, so that they can be seen more easily, reducing the chance of people and animals walking into them or vehicles crashing into them. Another means of providing support for lateral loads is a push brace pole, a second shorter pole that is attached to the side of the first and runs at an angle to the ground. If there is no space for a lateral support, a stronger pole, e.g. a construction of concrete or iron, is used. {{Clear}}
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