õhuliinidel

Õhuliinidel refers to overhead power lines, also known as aerial lines, which are used to transmit and distribute electricity. These lines consist of electrical conductors suspended on poles or pylons above the ground. They are a common method for delivering power over long distances, particularly in rural and less populated areas, as well as for connecting substations to distribution networks.

The conductors are typically made of aluminum or copper, often reinforced with steel for strength. Insulators, usually made of ceramic or polymer materials, are used to prevent the electricity from flowing into the supporting structures and to the ground. The poles or pylons, made from wood, steel, or concrete, provide the necessary support for the conductors at a safe height.

Overhead power lines are generally more cost-effective to construct and maintain compared to underground systems, especially for extensive networks. However, they are more susceptible to damage from weather events such as storms, wind, and ice, as well as from falling trees and animal interference. This can lead to power outages. Safety regulations are in place to ensure adequate clearance from buildings and public areas, and regular inspections are conducted to maintain their integrity and operational safety. Despite their vulnerabilities, õhuliinidel remain a vital component of modern electrical infrastructure worldwide.