Õhuliinide

Õhuliinide, often translated as overhead power lines or aerial lines, are a common method for transmitting and distributing electrical energy. They consist of electrical conductors suspended on poles or pylons above the ground. These lines are a crucial part of the electrical grid, carrying electricity from power generation plants to substations and then to individual consumers. The conductors are typically made of aluminum or copper, chosen for their conductivity and relatively low weight. Insulators, usually made of porcelain or composite materials, are used to prevent the electrical current from flowing into the support structures and to the ground.

The design and placement of õhuliinide are subject to various regulations and standards to ensure safety and reliability. Factors such as voltage levels, conductor size, span length between supports, and environmental conditions like wind and ice loading are all considered. While overhead lines are generally more cost-effective to install and maintain compared to underground cables, they are also more susceptible to weather-related damage, such as storms and falling trees. They can also pose visual impacts on the landscape and potential hazards to aviation. Maintenance involves regular inspections and repairs to ensure the integrity of the system and prevent power outages.