pylväskaapeloinnissa

Pylväskaapeloinnissa, also known as pole cabling or overhead line cabling, refers to the installation of electrical and telecommunications cables on poles. This method is commonly used in many parts of the world, especially in areas where underground installation is difficult or cost-prohibitive.

The primary function of pole cabling is to distribute electricity from substations to homes and businesses, as well as to provide telephone and internet services. Poles, typically made of wood, concrete, or metal, support the cables at a safe height above ground, preventing damage from traffic, excavation, and flooding.

Components of a pole cabling system include the poles themselves, insulators to prevent electrical current from flowing to the pole, cross-arms to support multiple cables, and the cables themselves, which can be insulated or bare depending on their purpose. Guy wires are often used to provide additional support and stability to the poles.

While pole cabling is a cost-effective and relatively easy-to-install method, it also has drawbacks. Overhead lines are more susceptible to damage from weather events such as high winds, ice storms, and lightning. They can also be aesthetically unpleasing and pose a hazard to aviation. Maintenance and repair can also be more challenging and potentially dangerous due to the elevated nature of the installations. Despite these challenges, pole cabling remains a vital part of modern infrastructure in many regions.