How to effectively prevent cable performance from being affected by low temperature weather?

Because wires and cables are overhead outdoors, the ground is easily covered with ice and snow. When the weight of ice exceeds the carrying capacity of wires and cables, it is easy to cause cables to pull transmission towers or poles, and the cables themselves will collapse. Then, in order to avoid this situation, there are two ways to alleviate it. In the selection of materials, we should pay attention to the selection of cold-resistant cables. As the snow falls on the cable and in the gap between cables, the center of gravity of the cable tends to shift to the part covered by snow, thus generating a force to make the cable rotate, and the snowball will roll bigger and bigger and eventually break. Therefore, cable rotation is the main reason for icing. If the cable is a hard conductor, when there is enough snow, it is not easy to kink and the snow will automatically fall off the conductor. At the same time, due to the different hardness and density of the cable, when the snow gradually solidifies into ice, it will automatically break up to some extent. Therefore, some manufacturers have developed new types of high-voltage overhead cables, among which new types of high-voltage overhead conductors are world-famous. Iceland and Czechoslovakia, the coldest countries in the world, adopt this kind of AERO-Z conductor. You can also apply antifreeze paint to wires and cables. The so-called antifreeze coating is actually a kind of high-temperature thermal insulation coating, or a kind of reflective thermal insulation coating. It aims to achieve the purpose of anti-freezing through heat preservation. In addition, it also has the functions of waterproof, anti-corrosion, moisture-proof, crack prevention, fire prevention, heat preservation and so on. Silicone rubber is a polymer material formed by replacing carbon with silicon, which has good heat resistance. The silicone rubber commonly used for wires and cables is methyl vinyl silicone rubber, and its working temperature ranges from -60℃ to 180℃.