Because the electric wire electric cable overhead in outdoor, the surface easy to cover of snow and ice. When ice weigh more than the withstanding capability of the wire and cable, and is easy to cause the cable transmission iron tara to, or to pull at telephone poles, and cable itself break off phenomenon. So, in order to avoid this situation, there are two ways to ease:

1, first of all, on the choice of material can pay attention to the choice of cable cold. Due to the gaps between the snow and ice fell on the wire and cable, the cable center of gravity is easy to part with snow, resulting in a force, make the cable spinning, the roll snowballs is, the greater the eventually break off. Therefore, the cable spinning is the main cause of the ice. And if the cable is a solid conductor, when the snow accumulation is more than enough, it is not easy to produce reverse, snow will automatically fall from the wire. At the same time, due to cable solid density is different, when snow to ice solidification, reaches a certain level will automatically be fracture. As a result, some manufacturers of developed a new type of high voltage overhead cables with Aero - Z new high voltage overhead conductor is famous throughout the world. The world's most cold countries, Iceland and Czechoslovakia all adopt the AERO - Z wires.

2, secondly, daub freeze protection coating on the wire and cable. So-called freeze protection coating, actually is a kind of high temperature heat insulation coating or reflection heat insulation coating. Aimed to achieve the purpose of antifreeze by heat preservation. General also has the waterproof, anti-corrosion, moisture-proof, anti-cracking, fire prevention, insulation, and other functions.

The freeze protection coating on the market according to the enterprise research and development ability of different and have different kinds. Therefore, in the choose and buy when need more contrast and inspection, etc.