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Experts Teach You How To Choose Heat-resistant High-temperature Wire And Cable
- Jun 25, 2018 -

The general wires and cables are insulated with plastic and rubber sheaths. These materials are conventional engineering materials, have a rich source, can meet large-scale production, and the cost is relatively low.

Experts teach you how to choose heat-resistant high-temperature wire and cable

The general wires and cables are insulated with plastic and rubber sheaths. These materials are conventional engineering materials, have a rich source, can meet large-scale production, and the cost is relatively low. But for some special industries such as petrochemicals, steel, aerospace, shipbuilding, military, pharmaceutical, food, plastic machinery, boilers and other industries related to heat and high temperature, need to be able to withstand a certain high temperature wire and cable, ordinary wire Obviously the cable cannot be used. High-temperature wires and cables are required to ensure the safe operation of their power and signals.


With the rapid development of China's economy, the demand for high-temperature cables in special industries has grown rapidly. Heat-resistant and high-temperature cables have grown at a rate of 20% each year. High-temperature cables, as an important component of special cables, have extremely strong vitality. In short supply, China imports about two billion yuan from abroad for domestic construction. The general requirements of the International Electrotechnical Commission (IEC) for the insulation of insulation are divided into:


Heat-resistant grade YAEBFHC

High temperature wire and cable


The maximum allowable operating temperature / °C90105120130155180 ≥ 180 Our common wire and cable insulation and sheathing for the general engineering rubber and plastic as the basic resin, but the requirements of insulation class. Common rubber materials used in cables are: rubber, ethylene propylene rubber, natural rubber and chlorosulfonated polyethylene, etc., working temperature is (60-75)°C; common plastic materials for cables are polyvinyl chloride, polyethylene (including Polyethylene (polyethylene) and polypropylene, working temperature (70 ~ 90) °C. It can be seen that these cables are not strictly heat or high temperature cables.



Heat-resistant cables generally refer to cables (90 to 155)°C and below, while high-temperature cables are cables of 180°C and above. To solve the problem of the non-high-temperature resistance of ordinary cables, it is necessary to improve the materials or use insulating materials that can withstand high temperatures.


Related Tags: High-temperature wire and cable High-temperature cable High-temperature wire characteristics