Requirements for wiring harness design for electric vehicles The nominal cross-sectional area of the conductors in the core of the high-flexibility wire and cable does not meet the requirements. The generally stipulated nominal values are always larger than those actually produced in the cables. When the nominal value is close to the standard, the unit current density will be relatively high, and during its operation, the cable is prone to cause a fire accident due to the inability to generate heat normally.
2. The production process of high-flexibility wire and cable is poor. As the saying goes, "Without deception, there can be no business." Although not every manufacturer behaves this way, there are inevitably some merchants in the market who, in the process of producing cables, do not strictly follow the standards and operate carelessly. Even some merchants will use inferior products to produce shoddily, resulting in the cables produced being of poor quality and causing fires during use.
3. The materials of the high-flexibility wires and cables are not pure or qualified. The core conductors of the wires and cables produced by Shuangchuan Electronics are all made of high-purity oxygen-free copper. However, many manufacturers often use unqualified or insufficiently pure materials instead during the production process. This will result in a decrease in power due to the presence of excessive impurities. Therefore, the materials used as the core conductors must be high-quality electrolytic materials, mainly consisting of copper and aluminum.
4. The composition of the insulating material does not meet the requirements or the processing is poor. We know that the outer layer of the cable usually uses an insulating material to wrap the core wire. If this insulating material is of poor quality, its own withstand voltage performance will be reduced during use, and it will also result in an unqualified resistance value. Moreover, long-term use will shorten its service life and easily cause some short-circuit faults leading to fires. For the wires and cables of Shuanshang Electronics, whether it is the core wire insulation or the sheath, all use high-quality plastic materials available on the market to strive to provide customers with satisfactory high-quality products.
5. Improper transportation. Before leaving the factory, the cables are usually subject to strict quality inspections. However, during transportation, due to the lack of proper protective measures, they were subjected to squeezing and collision, resulting in damage to the insulation layer or breakage of the internal wires.