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2023-06-02        Source:Shanghai Weirong Cable Co., Ltd

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

Precis

Nowadays, the use of high flexible cables has become increasingly widespread. However, with its popularity in national power supply lines, some of its safety issues have gradually attracted people's high attention, especially in recent years, the occurrence of cable fires has reminded people to pay extra attention when using this type of cable. So, what are the quality reasons that cause fire accidents in high flexible cables? Let's take a look together!

1. The nominal cross-section of the conductor of the cable core does not meet the requirements. Generally, the nominal interface specified is larger than the actual produced cable, Cables with nominal values that deviate from the standard will have a higher unit current density, which can easily lead to fire accidents during their operation due to the inability to generate heat normally.

2. Poor cable production process. The so-called no fraud, no business, although not every manufacturer is like this, it is inevitable that some businesses in the market do not strictly operate according to standards in the production process of cables in order to seek personal gain. Some merchants even use some inferior products The quality of the cables produced was shoddy, resulting in fires during use due to poor quality.

3. The material of the cable is impure or unqualified. The core wires of cables are generally made of conductive materials such as copper or aluminum, while some businesses often use substandard or impure materials to replace them during the production process, which can lead to a decrease in power due to the high content of impurities. Therefore, the materials used as core wires must be some high-quality electrolyte materials, -Mainly copper and aluminum.

4. The composition of the insulation material does not meet the requirements or the processing is poor. We know that the external part of the cable is usually made of one A material with insulating properties is used to wrap the core wire. If the quality of this insulating material is not qualified, it will reduce its own withstand voltage performance during use and form unqualified resistance values. In addition, long-term use can also shorten its service life, making it prone to some short circuit faults and causing fires.

5. Improper transportation. Most cables undergo strict quality inspection before leaving the factory, but due to the lack of proper protective measures during transportation, they are crushed and collided, resulting in damage to the insulation layer or internal core wire breakage. Shanghai Weirong Cable Co., Ltd. has always focused on the manufacturing of international standard cables, possessing over a hundred invention patents and practical patents. It is a member unit of the Shanghai Wire and Cable Research Association and has participated in the preparation of many series of special cable industry standards. The cable product variety is diverse, meeting diversified customer needs, and supporting customized solutions.


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