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Underground cables are used for power applications where it is impractical, difficult, or dangerous to use the overhead lines. They are widely used in densely populated urban areas, in factories, and even to supply power from the overhead posts to the consumer premises. Figure 1: Basic construction of an underground cable|image: 3.bp.blogspot.com.
Feb 11, 2022 · The first underground transmission line was a 132 kV line constructed in 1927. The cable was fluid-filled and paper insulated. The fluid was necessary to dissipate the heat. There are two main types of underground transmission lines currently in use.
Underground Cables: Underground cables are less susceptible to weather-related disturbances, such as lightning and high winds, leading to higher reliability. They are also less prone to physical damage from external factors like falling trees.
Nov 6, 2017 · An underground cable essentially consists of one or more conductors covered with suitable insulation and surrounded by some protective layer. Normally, electric power can either be transmitted using over head lines or underground cables. But the use underground cable offers a variety of advantages. Some of the advantages are listed below.
Oct 31, 2022 · What Is Underground Cable? Underground cable transmits and distributes electric power underground in which the practice of overhead construction becomes impracticable to make use.
Underground cables are used for power transmission from the generating station to the distribution substation. Unlike overhead transmission lines, these cables are laid underground in places where it is impractical, complex, or dangerous to use overhead transmission lines.
Mar 21, 2024 · The part of the underground electrical cable provides strength and resistance to external shocks, stresses and rodent attacks.
