What are the reasons for the frequent occurrence of fires caused by 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 of the actually produced cables. The nominal value is biased towards the standard cables, and such cables will have a relatively large unit current density. During their operation, the cables are prone to cause fire accidents due to the inability to generate heat normally.
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 operate cables strictly according to the standards during production. Even some merchants will use inferior materials to produce carelessly, resulting in the cables produced being of poor quality and causing fires during use.
3. The materials of high-flexibility wire and cable are not pure or qualified. The core conductors of the wire and cable of Shuangchang 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 lead to the presence of more impurities in the materials, thereby reducing the power transmission capacity. Therefore, the materials used as core conductors must be some high-quality electrolyte materials, mainly copper and aluminum.
4. The composition of the insulating material does not meet the requirements or is processed poorly. We know that the outside of the cable is generally wrapped with an insulating material to protect the core wire. If the quality of this insulating material is不合格， it will reduce its own withstand voltage performance during use， and will form an unqualified resistance value. In addition， long-term use will also shorten its service life and easily cause short-circuit faults and fires. The wire and cable of Shuangchang Electronics， whether it is the core wire insulation or the sheath， all use high-quality plastic materials available on the market， striving to provide customers with satisfactory high-quality products.
5. Improper transportation. Before leaving the factory， cables are generally subject to strict quality inspections. However， during transportation， due to the lack of correct protective measures， they are squeezed and collided， resulting in damage to the insulation layer or breakage of the internal core wire.