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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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2021
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Inform everyone of the dangers of substandard cables and precautions for purchasing cables
To inform everyone of the dangers of substandard cables and precautions for purchasing cables. Electrical wires and cables are a type of electrical product used for transmitting power, transmitting information, and achieving electromagnetic energy conversion. During spot checks, a large number of substandard products were discovered. These inferior products have buried many hidden dangers for the normal operation of the power system.
Informing the public about the dangers of substandard cables and purchasing precautions Cable Precautions
Wire Cable Wires are a type of electrical product used for transmitting power, transmitting information, and achieving electromagnetic energy conversion. During random inspections, a large number of substandard products were discovered. These inferior products have created many hidden dangers for the normal operation of the power system.
1. Wires with substandard markings Cable Markings are the primary way to identify product information for wires and cables. According to standards, the main contents of the markings are: product model, specifications, reference number, factory name, place of origin, etc., within a certain marking interval. If the markings are substandard, it can lead to misidentification by construction personnel, and in severe cases, cause electrical accidents.
2. Wires with structural dimensions that do not meet specifications Cable The main problems with structural dimensions are the thickness of the sheath and insulation. If the thickness of the sheath and insulation does not meet the standard, the dielectric strength of the wire and cable is significantly reduced, the lifespan of the wire and cable is shortened, and in severe cases, the wire and cable is damaged, and the insulation (sheath) layer cannot perform its normal protective function.
3. Wires and cables that meet the standards for tensile strength and elongation before sheath and insulation aging, but fail to meet the standards for tensile strength and elongation before insulation aging, directly shortening the service life of the wires and cables. In addition, during construction or under long-term energization and high-temperature environments, the insulator is prone to breakage, exposing the energized conductor, and there is a risk of electric shock and short circuits. The main reasons are the use of recycled materials to reduce production costs and the involvement of unqualified small and medium-sized enterprises.
4. Substandard conductor resistance Cable Conductor resistance is an important indicator for evaluating whether the conductor material and cross-section of wires and cables are appropriate. When the conductor resistance exceeds the standard value, the loss when current passes through the line will increase, and the heat generation of the wire and cable will intensify. The reason for substandard conductor resistance is mainly that enterprises reduce costs by reducing the amount of copper, which accounts for 80% of raw material costs, reducing the cross-sectional area of the conductor, or using recycled copper containing a large amount of impurities. This not only greatly exceeds the conductor resistance of the wire and cable but also easily causes fires during use.
Matters consumers should pay attention to when purchasing wires and cables
1. Observe the appearance of the wire. Qualified products have a soft, resilient, and elastic insulation (sheath) layer, with a tight, smooth surface without roughness. If the plastic covering the wire peels off easily, it indicates insufficient plastic strength.
2. Check the cross-section of the wire. The copper or aluminum core of qualified products should have a metallic luster. A dark copper or whitish aluminum surface indicates oxidation.
3. When purchasing Cable , pay attention to checking the quality certificate. If the wire quality is qualified, Cable the quality should also be checked, and there should be no problem.
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Guangzhou Baiyun International Airport
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2017-09-13
2021-04-13
Contact Us
Service Hotline
Address: Central Industrial Park, Luqiao District, Taizhou City, Zhejiang Province
Fax: 86-576-82670077
