What is a specialty cable? What are the domestic and international manufacturers of specialty cables?

First, what is a special cable? Specialty cable is a high-performance cable used in specific environments or applications. Compared with ordinary cables, specialty cables have higher durability, stronger anti-interference ability and higher electrical performance, so they are widely used in special occasions and applications requiring high performance. Specialty cables are mainly used in military, aviation, aerospace, medical, electric power, electronics, petrochemical, mining, transportation, communications and other fields. Special cable features: 1. High temperature: special cable insulation materials and sheath materials can withstand high temperature environment, usually can withstand high temperature environment of more than 100 ° C, and even some can withstand high temperature environment of more than 200 ° C. 2. Fire: special cable insulation materials and sheath materials used in fire resistance, even in the event of a fire, but also to maintain the normal working condition of the circuit. 3. Anti-radiation: special cables can work properly in environments with high radiation intensity, such as nuclear power plants, satellites, etc. 4. chemical corrosion: special cables using insulation materials and sheath materials can withstand strong acids, strong alkalis and other corrosive substances. 5. anti-interference: special cables using insulation materials and sheath materials can effectively prevent interference with the interference signals, to ensure the stability of the signal transmission. 6. abrasion resistance: Special cable sheath materials used can withstand wear and external impact, to protect the normal operation of the wire. Classification of special cables: 1. High-temperature cables High-temperature cables are cables that can work properly in high-temperature environments. The conductor and insulation materials of high-temperature cables need to be able to withstand high temperatures, usually using copper, nickel, iron, chromium and other metal materials as the conductor, using high-temperature-stable materials as the insulation layer, such as polytetrafluoroethylene (PTFE), polyimide (PI), alumina ceramics and so on. High-temperature cables are widely used in metallurgy, steel, glass and other industries.2. Low-temperature cablesLow-temperature cables are cables that can work normally in extremely low-temperature environments. The conductor and insulation materials of cryogenic cables need to have low-temperature resistance, usually using copper, aluminum, steel and other metal materials as the conductor, using low-temperature-stable polyvinyl chloride (PVC), polyethylene (PE), styrene-butadiene rubber (BR) and other materials as the insulation layer. Low-temperature cables are widely used in polar research, cold storage, pharmaceutical cold chain and other fields.3. Corrosion-resistant cables Corrosion-resistant cables are cables that can work stably for a long period of time in a corrosive environment. Corrosion-resistant cable conductor and insulation materials need to be corrosion-resistant, usually using copper, aluminum, copper-nickel alloy and other materials as the conductor, the use of fluorine plastics, polyolefin materials, neoprene rubber and so on as the insulation layer. Corrosion-resistant cables are widely used in chemical industry, metallurgy, marine and other fields.4. Aerospace cables: Aerospace field has very high requirements for cables and cables, which need to work in extreme environments, such as high temperature, low temperature, high humidity, low pressure, high pressure, strong radiation and so on. Aerospace cables usually use high temperature, high strength, high corrosion resistance and other special materials, with high temperature resistance, radiation resistance, vibration resistance, shock resistance, chemical corrosion resistance, etc. 5. nuclear power plant cable: nuclear power plant cable requirements of materials, structure and manufacturing process are very strict, must have a high level of fire prevention, explosion-proof, anti-radiation and other characteristics. Nuclear power plant cable with special materials and protective measures to ensure its safety and reliability of work in a high-radiation environment.6. Automotive cable: automotive cable refers to the cable products used in automobile manufacturing, its requirements must have good heat resistance, oil resistance, abrasion resistance, cold resistance, moisture, shock and other properties. Automotive cable with high-quality insulation materials and protective measures to ensure its stability and reliability in the harsh operating environment.7. Communication cable: communication cable refers to the cable products used in the field of communication, such as telephone lines, network cables. Communication cables need to have excellent transmission performance and anti-interference performance to ensure its stability and reliability in high-speed, high-frequency communication environment.

Second, what are the domestic and foreign manufacturers of specialty cables?

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