gui chao cable news: wire and cable antifreeze skills
from：guichao author：admin click： 266 addtime：2017-03-10 11:25:34
as the wire and cable overhead, the surface is easy to cover the snow and ice.
when the weight of the ice exceeds the carrying capacity of the wire and cable,
it is easy to cause the cable to pull the transmission tower,
or pull the wire pole, and the cable itself collapse phenomenon.
so, in order to avoid this situation, there are two ways to ease:
1, first of all, in the choice of materials should pay attention to choose to resist cold cable.
because of the ice and snow fall on the cable and the gap between the cable, the cable center of gravity is prone to snow,
to produce a force, so that the rotation of the cable, the snowball will roll over, the final collapse.
therefore, the main reason for the icing is the rotation of the cable.
and if the cable is a hard conductor, when the snow accumulation enough, it is not easy to reverse, the snow will automatically fall from the wire.
at the same time, due to the different density of the cable, when the snow gradually solidified into the ice, to a certain extent will be automatically broken.
therefore, some manufacturers have developed a new type of high voltage overhead cable, which is known as the aero-z new high voltage overhead wire.
the world's coldest countries, iceland and czechoslovakia, use the aero-z.
2, secondly, in the wire and cable painting antifreeze coating.
the so-called antifreeze coating, in fact, is a high temperature insulation coating or reflective insulation coating.
designed to achieve the purpose of antifreeze through insulation. in addition the general also has waterproof, anti-corrosion, moisture-proof, anti cracking, fire prevention, insulation and other functions.
antifreeze coatings on the market vary according to the research and development capabilities of each enterprise.
therefore, in the purchase of the need to add more contrast and inspection.