Low temperature resistance minus 40 degrees crosslinked polyethylene insulated cold resistant cable features
Source : Tianxing Cable | Release date : 2024-05-04
In the winter in the north of China, everywhere ice and snow, the temperature is very low, crosslinked polyethylene insulated power cable is generally laid in the indoor, tunnel and pipeline, vulnerable to the influence of external low temperature weather, the outer sheath of the cable is easy to freeze and become hard and brittle, serious cracking, cable damage, damage power transmission, resulting in a large area of power outage, which has a great impact on people's quality of life. However, the cold-resistant power cable can work normally in this environment to ensure people's quality of life.
Characteristics of cross-linked polyethylene insulated cold resistant cable:
According to the different materials used in insulation, it is generally divided into polyvinyl chloride insulated power cable and cross-linked polyethylene insulated power cable. Compared with polyvinyl chloride insulated power cable, cross-linked polyethylene insulated low-voltage power cable not only has good temperature resistance, conventional polyvinyl chloride temperature resistance is 70 degrees, while cross-linked polyethylene insulation is 90 degrees. At the same time, the insulation electrical and physical properties of crosslinked polyethylene are better than polyvinyl chloride.
The special properties of conventional crosslinked polyethylene material cold resistance is not ideal, in some external environment is harsh, the cable can not meet the requirements, so some excellent materials with special properties are used in wire and cable, such as low temperature environment, conventional power cable low temperature resistance is poor, below ten degrees below zero, the wire will harden, serious will produce cracking phenomenon, So that the wire can not work normally, this kind of cable in most of the northern parts of China can not be used for a long time, crosslinked polyethylene insulation cold resistant power cable is characterized by good low temperature resistance, can work normally in the environment of minus 40 degrees and above for a long time.
Custom service advantages of crosslinked polyethylene insulated cold resistant power cables:
1, the conductor meets the standards of the Electrotechnical Commission of oxygen-free copper, high-precision oxygen-free copper also meets the requirements of the national standard, good softness, low resistance, small power transmission loss, long-term use not only saves electricity costs, and long service life.
2, the use of special cold-resistant halogen-free low smoke environmental protection crosslinked polyethylene as insulation material, large insulation resistance, good voltage resistance, good breakdown resistance, good safety; The insulation material has good insulation performance, thin skin, small size, light weight, easy to use and install, and can work at minus 40 degrees for a long time.
3, soft grade cold resistance, high temperature, halogen-free, low smoke environmental protection polyolefin material as the external protective layer of power cable, with good physical and mechanical properties, anti-aging, high strength, weather resistance, wear resistance.
4, cross-linked polyethylene insulation cold resistance environmental protection low voltage power cable low temperature resistance, good high temperature resistance, long-term use of working temperature: -40~90℃, can be used for a long time in the high temperature does not exceed 90℃, low temperature is not lower than -40℃ environment.
5, while meeting the requirements of cold resistance, all the materials of the cable have the characteristics of halogen-free low smoke environmental protection, the cable will emit a small amount of white smoke when it is on fire, the smoke concentration is very low, and the transparency is high, which brings certain convenience for safe escape and rescue work, and can be used in some environments or areas with relatively high environmental protection requirements.
6, the insulation layer and outer protective layer of the cable are processed by cold-resistant environmental protection materials, so that the cable products are good soft, in the low temperature environment, the wire will not crack phenomenon, long service life.
Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable.