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About UsHongsheng Wire and Cable Co., Ltd. is a key enterprise in Zhejiang Province specializing in the production of wires and cables, integrating industry, commerce, trade, production, education, and research. Its main production, processes, and testing equipment are all designed and configured according to international standards.
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ProductsEmploy scientific management and quality assurance systems based on GB/T19001—IS09001 and GB/T24001—ISO14001 environmental management systems to organize production management.
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Contact UsWe believe: Great achievements depend on quality. Your satisfaction is our eternal pursuit!
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2022
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Below is a discussion on how to identify inferior power cables
Below is a discussion on how to identify inferior power cables. How to identify inferior power cables? Counterfeit products are not uncommon in the market. Even in the power cable industry, there are some inferior products mixed in, which seriously affects our power safety and has long-term hidden dangers for our lives. If fake power cables are used, it may cause short circuits and electric shocks in minor cases, and fires and casualties in serious cases. In recent years, more than 40% of fires have been caused by electrical faults, and copper core "shrinkage" black core power cables are one of the main reasons.
Below, we will discuss how to identify inferior power cables
How to identify inferior power cables
Counterfeit products are common in the market, and even in the power cable industry, some inferior products are mixed in, seriously affecting our power safety and creating long-term hidden dangers for our lives. If fake power cables are used, minor issues may cause short circuits and electric shocks, while serious issues may cause fires and casualties. In recent years, more than 40% of fires have been caused by electrical faults, and copper core "shrinkage" black core power cables are one of the main reasons.
Characteristics of fake power cables
Resistance values do not meet national standards
Wires with excessive resistance may overheat at the same current, accelerating the aging of the outer insulation layer and causing short circuits and fires; moreover, due to exceeding resistance, energy consumption during transmission will be greatly increased, increasing electricity costs.
Inferior raw materials
1. Tricks with copper conductors: Copper conductors account for 80% of the cost of wires. One of the practices of unscrupulous manufacturers is to reduce the quality of copper materials, using much cheaper impure copper, recycled copper, or even crudely smelted copper. The copper content is extremely unstable, leading to a significant increase in the resistivity of the copper conductor. Another is to reduce the amount of copper, reducing the actual cross-sectional area of the copper core. The direct consequence of these two methods is that the wires will overheat during use, damaging the insulating plastic and causing short circuits and fires.
2. Tricks with the plastic used in the insulation layer: Similar to copper materials, the quality is reduced. The price difference between one ton of recycled insulation material and qualified PVC plastic powder is nearly 2000 yuan. However, recycled insulation materials have high impurity content, low mechanical strength, poor aging resistance, and reduced electrical insulation performance, which can directly lead to power cable leakage.
Identification of counterfeit and inferior power cables
1. Check the label: The qualified certificate of power cables produced by regular manufacturers should include: 3C certification mark, certification number, model specifications, implementation standards, rated voltage, power cable length, production date, producer, inspector, factory name, address, fixed telephone number, anti-counterfeiting mark, etc. Counterfeit product labels are usually printed unclearly or incompletely.
2. Check the surface: The plastic sheath of conventional power cables is soft, smooth, and evenly colored. The surface should also print several contents of the product certificate, such as the 3C certification mark, certification number, model, rated voltage, implementation standard, factory name, etc. The characters must be clear and not easily erased.
3. Try bending: It is recommended to repeatedly bend the wire head by hand. A superior product is soft to the touch, has good fatigue resistance, high elasticity of plastic or rubber, and no cracks in the wire insulator. The insulation layer of counterfeit and inferior power cables looks thick, but most of it is made of recycled plastic. As long as you slightly squeeze them, the squeezed part will turn white, and it will break after bending 4-6 times.
Hopefully, the above knowledge will be helpful to everyone. If you need qualified power cables, you can consult our company.
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