Low smoke halogen-free copper core power cable

Low smoke halogen-free copper core power cable

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Low smoke halogen-free copper core power cable

Low smoke halogen-free cable refers to a type of wire and cable that produces less smoke and dust during combustion, and its constituent materials do not contain halogens. It is also known as a clean cable or environmentally friendly cable. Environmentally friendly cables are cable products that are environmentally and human health friendly in the selection of raw materials, production and manufacturing, and use processes, and meet specific environmental standards. The cable itself does not contain heavy metals. It does not contain heavy metals such as lead, cadmium, mercury, etc., and will not cause pollution to soil, water sources, etc. during production, use, and disposal. The halogen-free materials used in the production of cables are green and environmentally friendly insulation layers, sheaths, and special oxygen barrier materials, which do not contain halogens and do not produce harmful halogen gases during combustion. Low smoke in cables refers to the small amount of smoke produced during combustion, smoke density that meets relevant standards, and light transmittance ≥60%It is conducive to the escape of personnel in case of fire. Its characteristic is high flame retardancy. It can meet the high fire safety requirements of buildings, is not easy to burn in case of fire, and can prevent the spread of flames and the expansion of disasters after combustion. Has good electrical and physical mechanical properties, ensuring normal power and information transmission functions. The rated voltage is generally450/750VAnd below. Long term allowable operating temperature for conductors: usually not exceeding 70℃、90℃、125℃. Widely used in densely populated public places such as subway stations, large shopping malls, hospitals, schools, etc; High rise and super high-rise buildings, such as wiring systems and fire protection systems for high-rise residential and office buildings; Important electrical equipment and locations. The structure and material of the conductor are generally made of multi stranded oxygen free copper or tin plated copper, and the cross-section is usually0.5mm²-10mmBetween square meters, it has good conductivity and antioxidant capacity. The insulation layer is made of halogen-free environmentally friendly materials, such as cross-linked polyethylene（XLPE）Ethylene propylene rubber（EPR）Wait. Sheath layer: using low smoke halogen-free flame retardant materials such as thermoplastic elastomers（TPE）Low smoke halogen-free polyolefins, etc. have characteristics such as flame retardancy, wear resistance, and weather resistance. Shielding layer (optional): Copper wire weaving or aluminum foil composite shielding layer can be added as needed to resist electromagnetic interference and be suitable for signal transmission scenarios. comply withGB/T 19666Flame retardant level requirements, some types also have fire-resistant properties, such asNHType can be in 750Maintain in ℃ flame 180 Minute power on. Strong adaptability to the environment: with a wide temperature tolerance range, generally- 40℃-+90℃，XLPEInsulation can reach+ 105℃, and resistant to oil and moisture, suitable for complex environments such as humidity and oil stains. Insulating materials have insulation resistance and voltage resistance, strong anti-interference ability, and can ensure the stability and accuracy of signal transmission. The model and representation method of low smoke halogen-free cables consist of combustion characteristic code, purpose code, material code, etc. For example,WDZB-YJYIndicating rated voltage600/1000VCross linked polyethylene insulation and polyolefin sheath flame retardantBLow smoke halogen-free cable. Application scenario: Public buildings: suitable for control systems in subways, airports, hospitals, etc., such as fire and emergency lighting lines. In the industrial field, it can be used in workshops with high environmental requirements such as food processing and pharmaceutical factories to transmit control signals and prevent halogen pollution. Commonly used for cables in high-speed rail and subway carriages. Partial models of low smoke halogen-free cables:WDZ-BVTheWDZ-RVSTheWDZ-RVVPTheWDN-BVTheWDN-RVSTheWDN-RVVPTheZR-BVTheZR-RVSTheZR-RVVPTheNH-RVSTheNH-PVVPTheNH-BVTheNH-RVSTheNH-PVVPTheWDZ-KVVTheWDZ-KVV22TheWDZ-KYJYTheWDZ-KYJY23TheWDZ-KYJYPTheWDZ-KYJYP23TheWDZ-VVTheWDZ-YJV，WDN-KVVTheWDN-KVV22TheWDN-KYJYTheWDN-KYJY23TheWDN-KYJYPTheWDN-KYJYP23TheWDN-VVTheWDN-YJVTheZR-KVVTheZR-KVV22TheZR-KYJVTheZR-VVTheZR-YJVTheNH-KVVTheNH-KVV22TheNH-KYJVTheNH-VVTheNH-YJV