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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 ...
Utility pole with electric lines (top) and telephone cables. Fixed telephone lines per 100 inhabitants, 1997–2007. Cross section of telephone cable of 1,800 twisted pairs, 1922. A newer telephone cable used to carry telephone lines from several customers
Distribution transformers are normally located at a service drop, where wires run from a utility pole or underground power lines to a customer's premises. They are often used for the power supply of facilities outside settlements, such as isolated houses, farmyards, or pumping stations at voltages below 30 kV.
Rural distribution is mostly above ground with utility poles, and suburban distribution is a mix. [1] Closer to the customer, a distribution transformer steps the primary distribution power down to a low-voltage secondary circuit, usually 120/240 V in the US for residential customers.
If the telephone does not work, the line is faulty and the telephone company is responsible for repair. Most NIDs also include "circuit protectors", which are surge protectors for a telephone line. They protect customer wiring, equipment, and personnel from any transient energy on the line, such as from a lightning strike to a utility pole.
For a single wood utility pole structure, a pole is placed in the ground, then three crossarms extend from this, either staggered or all to one side. The insulators are attached to the crossarms. For an "H"-type wood pole structure, two poles are placed in the ground, then a crossbar is placed on top of these, extending to both sides.
The term lineworker was used for those who set wooden poles and strung wire. The term continued in use with the invention of the telephone in the 1870s and the beginning of electrification in the 1890s. This new electrical power work was more hazardous than telegraph or telephone work because of the risk of electrocution. Between the 1890s and ...
Utility pole attachment: A utility pole is a pole, often made of wood or durable metals, that holds power lines and cables overhead. [38] Around 134 million poles exist in the U.S. The federal government controls use of some poles, while states control use of others. [39] Entities that build and own the utility poles have had partnerships with ...
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