What are the reasons for the frequent occurrence of fires involving high-flexibility wire and cable? 1. The cross-sectional area of the conductor in the core of high-flexibility wire and cable does not meet the requirements. Generally, the specified cross-sectional area is larger than that actually produced by the cable, and a cable with a nominal value that is closer to the standard will have a larger unit current density. During its operation, the cable is prone to fail to generate heat normally, which can easily lead to a fire accident. 2. The production process of high-flexibility wire and cable is poor. As the saying goes, "no fraud without business", although not every manufacturer does this, there are inevitably some merchants in the market who, in order to seek personal gain, do not strictly follow the standards when producing cables. Even

The structure and function of power cords Dongguan Wenchang Electronic Products Co., Ltd. specializes in manufacturing American standard power cords, CCC power cords, VDE power cords, and Japanese standard power cords. The materials of power cords include PVC, TPE power cords, and rubber power cords. Power cords are wires used to transmit current. The usual way of current transmission is point-to-point transmission. Power cords can be classified according to their usage into AC (alternating current) power cords and DC (direct current) power cords. Usually, AC power cords are wires that use high-voltage alternating current. Such wires require unified standards and obtaining safety certification before they can be officially produced. While DC wires basically use lower-voltage current.

Requirements for wiring design of electric vehicles 1. The nominal cross-sectional area of the conductors in the flexible high-flexibility wires and cables does not meet the requirements. Generally, the nominal cross-sectional areas specified are larger than those actually produced by the manufacturers, and if the nominal values are too close to the standard cables, there will be a relatively large unit current density during their operation. During this process, the cables are prone to catching fire due to the inability to generate heat normally. 2. The production process of high-flexibility wires and cables is poor. As the saying goes, "no deal without fraud", although not every manufacturer does this, there are inevitably some merchants in the market who, in order to seek personal gain, do not strictly follow the standards in the production of cables. Even some merchants may...

Low smoke and halogen-free wire characteristics: (1) The tensile strength is greater than that of ordinary PVC wires: The tensile strength of ordinary PVC wires is greater than 1.05 Kgf/mm2, while the tensile strength of low smoke and halogen-free wires is greater than 1.2 Kgf/mm2; (2) It has good weather resistance (-30℃ to 105℃); (3) It has good flexibility (with a hardness of 80-90); (4) It has non-migration property (because this product formula does not add plasticizers, there will be no migration property); (5) When burning, it will not produce toxic black smoke (it will produce a small amount of white smoke); (6) It has a high volume resistivity: PVC wires -