How to bind overhead wires?
The main components of overhead lines are wires and lightning wires (overhead ground wires), towers, insulators, fittings, tower foundations, cables and earthing devices.
Mainly refers to the overhead line overhead line, set up above the ground, with the transmission line transmission line insulator fixed to transfer power in upright on the ground on the tower. The erection and maintenance more convenient, low cost, but vulnerable to weather and environment (such as wind, lightning, ice contamination, etc.) the influence caused by the fault at the same time, the entire corridor occupied land area is more, easy to cause the electromagnetic interference of the surrounding environment.
A wire is a component used to conduct electricity and to transmit electrical energy. Overhead bare wire is usually one phase, 220kV and above line, because of the large transmission capacity, at the same time, in order to reduce corona losses and corona interference, the use of phase split wire, that is, each phase using two or more wires. The split conductor can deliver larger electric energy, and it has less power consumption and better anti vibration performance. The conductor is often tested by various natural conditions in operation. It must have the characteristics of good conductivity, high mechanical strength, light quality, low price, strong corrosion resistance and so on. As China's aluminum resources than copper rich, coupled with aluminum and copper prices vary greatly, so almost all use steel cored aluminum stranded wire.
