What are the causes of fire accidents in highly flexible cables?

Nowadays, the application of high-flex cables is more and more widely used, but with its popularity in the national power supply lines, some safety issues have gradually attracted people's attention, especially in recent years, the occurrence of cable fire accidents to remind people to pay special attention to the use of such cables. So, what are the quality reasons for the fire accidents of high-flex cables? Let's take a look. 1. The nominal cross-section of the core cable conductor does not meet the requirements. General provisions of the nominal interface than the actual production of the cable is larger, and the nominal value deviates from the standard cable will have a larger unit current density, the work of the cable can not be normal heat, easy to cause fire accidents. 2. Poor cable production process. The so-called "not treacherous not business", although not every manufacturer is so, but some businesses in the market in the cable production process is not strictly in accordance with the standard operation for personal gain is inevitable. Even some merchants will use some poor-quality products, resulting in the final production of the cable because of poor quality and fire in use. 3. Cable materials are impure or unqualified. Generally speaking, the core wire of the cable is mainly made of some conductive materials such as copper or aluminum, but many merchants often use unqualified or not pure enough materials instead in the production process, which will lead to lower power because it contains more impurities. So the material used as the core wire must be some high-quality electrolyte material, generally based on copper and aluminum. 4. Insulating material composition does not meet the requirements or poor processing. As we know, an insulating material is usually used to wrap the core wire outside the cable. If the quality of this insulating material is unqualified, it will reduce its own voltage resistance and form unqualified resistance value in the process of use. In addition, long-term use will shorten its service life, and some short-circuit faults can easily cause fire. 5. Improper transportation. Most of the cables have undergone strict quality inspection before leaving the factory. However, due to the lack of appropriate protective measures during transportation, they are squeezed and collided, resulting in damage to the insulation layer or rupture of the internal core wire.

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