Wire and cable antifreeze tips

Since the beginning of this winter, many regions in China have suffered a cold wave. Since March November, China's North suffered a blizzard, which brought significant losses and impacts to the national economy and people's lives. On December 24, the Central Meteorological Observatory issued an orange cold wave alarm, which said that from the 24 th to the 26 th, a strong cold air would once again attack northern, western, and some eastern parts of China. This indicates that the "Frozen" phenomenon will increase. However, in the cold current, some enterprises do well in anti-freezing work? In particular, many enterprises that use hardware products are exposed to the outside. Therefore, they must pay special attention to anti-freezing work. This section focuses on wire and cable antifreeze tips.

Anti-freezing tips for wire and cable against cold wave attacks

Because wires and cables are overhead outside, the surface is easily covered with snow and ice. When the weight of the ice layer exceeds the bearing capacity of the wire and cable, the cable may easily pull the transmission tower, or the pole, and the cable may collapse. There are two ways to mitigate this problem:

First, make sure to choose a cable that can withstand the cold in the selection of materials. As the ice and snow fall into the gap between cables and cables, the center of gravity of the cables tends to be in the snowy area, resulting in a force, so that the cables rotate, the snowball will roll bigger and bigger, and eventually break down. Therefore, cable rotation is the main cause of icing.

If the cable is a hard conductor, when the snow accumulation is enough, it is not easy to produce torsion, the snow will automatically fall from the wire. At the same time, due to the different hard density of the cable, when the snow gradually freezes into ice, it will automatically break down to a certain extent. As a result, some manufacturers developed a new type of high-voltage overhead cable, which is known as Aero-Z new high-voltage overhead cable. The coldest countries in the world, Iceland and Slovakia, all use this AERO-Z wire.

Second, apply antifreezing coating on wire and cable. The so-called antifreeze coating is actually a kind of high temperature thermal insulation coating or reflective thermal insulation coating. It aims to achieve the purpose of antifreezing through heat preservation. In addition, it also has waterproof, anti-corrosion, moisture-proof, anti-split, fire prevention, insulation and other functions.

Currently, anti-freezing coatings on the market vary according to the R & D capabilities of enterprises. Therefore, more comparisons and tests are required during the purchase.