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Security cable industry trends and standardization leader

CHENAN has established a long-term cooperation with Haier,Midea,Vandewiele,Shanghai Electric Cable Research Institute of the Ministry of Machinery and Electronics, etc..With a professional technical team and a whole set of test instruments and production devices, CHENAN owns complete testing means and rich experience in production.

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2019

01-18

What is the development prospect of cable and wire industry?

Wire and cable industry is an important basic industry of the national economy. It is widely used in various sectors of the national economy, providing important supporting facilities for various industries, national defense construction and major construction projects. It is a basic guarantee for the normal operation of modern economy and society, and an indispensable product for the daily life of the people. Therefore, the quality of wire and cable products is directly related to the economic and social development and the vital interests of the people. At present, under the joint efforts of the whole industry, remarkable achievements have been made in improving the quality of electric wires and cables nationwide. However, while making achievements, we should also be sober-minded to realize that the situation of wire and cable quality is still not optimistic, the quality improvement work is still a long way to go, the cable industry quality improvement work is still advancing, and line and firm. Cable wire After a long time of efforts, China's cable industry has broken through the trillion yuan of output value, has become the second largest industry after the automotive industry, the annual productivity of the world's largest cable producer than the United States. The current achievements cannot be achieved without the joint efforts of relevant industries across the country under the support of the government during the 12th five-year plan period. In the past 15 years, with the economic rise of Asia and other countries centering on China, the large demand of cable market makes the production scale of wire and cable increase accordingly. From the point of today's domestic industry development, to the spring of 2015, the cable industry in China is still in the state of big capacity but low quality, with foreign investment of high cost of independent research and development copper core insulation wire patterns have a great contrast, the domestic independent research and development of low cost, and more than 95% are small and medium-sized enterprises, and large state-owned enterprises only accounts for less than 15% market share, product industry ZhengGeLv low has become an imminent problem. The total amount of copper used in the domestic wire and cable industry increased by 15.3% annually on average, far exceeding the GDP growth. To make matters worse, China accounted for about one-third of the world's copper use in 2012. A wind power station will be used only 4 million pounds (1800 tons) to 15 million pounds (6800 tons) of copper, copper wire and cable as nerves and blood vessels of the vessel, is directly related to the ship's safety, reliability, advanced and operational capability, this technology is put forward high requirements for Marine cable, Marine cable replacement will speed up, in fact, wire and cable using the environment is different, also different to the requirement of wire, copper or aluminium cable have different strengths. Cable wire Some experts predict that China's wire and cable industry will develop faster than the national economy in the next few years, which is expected to exceed 10%. It is not difficult to predict that China's power grid construction is about to enter a golden era, which will be a new round of development opportunities brought by the entire wire and cable industry, especially the backbone enterprises. However, as China's economy enters the era of liberalization, many wire and cable manufacturers will strive for market interests, so as to reduce or even give up their own research and development technology and products, resulting in serious homogenization problems in China's wire and cable industry. Faced with a series of factors that are not conducive to the development of China's cable industry, the state has repeatedly made it clear from the perspective of policies and regulations. In recent years, the wire and cable industry has received special attention from the government, which creates more development space and opportunities for wire and cable. On the other hand, it also puts forward higher requirements and deployment for the quality of wire and cable. Cable wire According to statistics, 60% of Internet users are college degree or above, and the average age is about 33 years old. These people tend to have more independent consumption behaviors. They are no longer satisfied with passively accepting the products of wire and cable companies, but put forward new requirements on the quality, specification, style, shape and packaging of goods. With the development of e-commerce, there are new changes in customer behavior and preferences. In the e-commerce environment, people get information faster and faster than the traditional ones, so they are more eager to seek new changes. With the emergence of new technologies and the acceleration of product upgrading, customers' demands for consumer goods will keep changing. Add the pace of future life rhythm, working pr

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2019

01-18

Precautions for wire and cable transportation and storage

Transport and dropped from a height are strictly prohibited in the cable or the cable with cable, especially in lower temperature (usually 5 ℃ or so and below), throw, fall cable would likely lead to insulation, sheath craze

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2019

01-18

How to detect the break point of the cable? Take a look at some common methods!

In the actual engineering maintenance, the most fearful for the maintenance personnel is that they can't find the break point in the discontinuous line and cable. Although in the actual maintenance of weak current engineering, we will directly try to change the cable or re-lay when encountering cable problems, today we will discuss what technical methods can be used to detect the breakpoint of the cable! When the fault occurs in the internal medium of the cable, the exact location cannot be seen under the condition that the external covering of the cable is insulated, including the strong and weak current. Usually, the idea of finding the breakpoint is to conduct subsection inspection. For example, if there is a gap in the middle of a cable, it can be measured from the two ends and the middle three points respectively. If there is no gap on either side, the middle point can be taken for measurement. In this way, the location of the break point can be quickly found by narrowing the scope through investigation.

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2019

01-18

Why do wires and cables short-circuit and how to avoid it?

Do you know why the wires and cables short-circuit? Next let chaoyang cable small make up to tell you how it works. It is a well known fact that electrical resistance produces heat when wires and cables work. Wire and cable wire power is very small, heating power also has a professional formula can be calculated: q = I ^ 2 r. Q = the I ^ 2 R said electric current through a conductor, the greater the the greater the heating power of it (R is basically constant); If the current is constant, the heating power of the wire is constant. The heat released during operation will be absorbed by the wire itself, causing the wire temperature to rise. Although the wire in operation, although constantly absorb the heat released by the current work, but the temperature will not rise indefinitely. Because while the wire is absorbing heat, it's also releasing heat to the outside world, and actually the wire is getting hotter, and eventually the temperature stays constant at some point. At this constant point, the conductor absorbs heat, radiates heat at the same power, and the conductor is in thermal equilibrium. The ability of wires to withstand higher temperatures is limited, and it is dangerous to continue working beyond a certain temperature. The maximum temperature corresponds naturally to the maximum current. The overload of the wire directly causes the temperature in and around the wire to rise. Rising temperatures are the most immediate cause of such fires. Overload can lead to damage to the insulation between the inner cores of multiple wires and cables, resulting in short circuits, burning equipment, and fire. Multi-core wire and cable wires are separated by insulation layer. Overload insulation layer softens and damages, resulting in direct contact between two or more conductors of wire and cable, resulting in short circuit and combustion equipment. At the same time short circuit instant high current produced high temperature line fire, wire melting, melting wire fell on the surrounding combustible and cause a fire. It is possible for an overloaded conductor to transfer heat to a nearby flammable temperature, and a lower flammable material near the ignition point to ignite and cause a fire. This danger is particularly pronounced in warehouses where flammable materials are stored and in buildings where flammable fittings are made. Overloading can also cause joints in the line to overheat, which speeds up the oxidation process. The oxidation of the connection point is easy to produce an oxidation film which is not easy to conduct electricity. The oxidation film increases the resistance between the contact points, leading to ignition and other phenomena and causing fire. So how do you prevent wires and cables from overloading and catching fire? Take a look at the shaanxi xi 'an wire and cable manufacturers small make up how to say! In the course of the circuit design, the appropriate type of wire and cable shall be selected to accurately allow the site capacity and to take into account the possibility of new capacity. Large capacity, should choose thicker wire and cable. Line design and reasonable selection are the key steps to prevent overload. If the design choice is improper, it will be difficult to correct the inherent hazards. Some small projects, places without serious design choices. Free choice, laying lines, that's very dangerous. New electrical equipment, electrical equipment should take full account of the original capacity. The original wire and cable do not meet the requirements, should be redesigned, transformation. The line should meet the relevant requirements, so that the electrician and construction personnel lay. Line laying conditions directly affect the heat dissipation of wires and cables. Generally speaking, it is not suitable for laying electric wires and cables to pile up through inflammable and flammable materials, which will lead to poor heat dissipation of wires, heat accumulation, and the possibility of ignition of flammable articles around, and increase the fire danger caused by overload. The decorative ceiling line in the public entertainment area should be protected by steel pipe, so that the ceiling and the line are separated, so that the flame will not fall in the case of overload, short circuit and so on, and the fire can be avoided. Strengthen power management, avoid random wiring, confusion, careful use of mobile socket. Chaotic wiring, chaotic wiring, the use of a portable power socket is actually the addition of electrical equipment to a section of the line, increasing the electrical flow that can lead to overload. Walls with more removable jacks than fixed sockets, and if the removable socket USES too much electrical equipment, the original wiring must be unbearable. For higher power equipment, electrical appliances should be set up a separate line, should not use the mobile power socket as the wiring source. Accelerate the renovation of old lines to eliminate fire hazards. Ol

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2019

01-18

Cable types and their selection criteria

Electric wires and cables are defined as "wire products used to transmit electric (magnetic) energy, information and realize the conversion of electromagnetic energy" according to the international electrical terminology. They are indispensable equipment for the transmission of electric energy, information transmission and manufacturing of various motors, electrical appliances and instruments. They are known as the "blood vessels" and "nerves" of the national economy. Wire and cable manufacturing is one of the biggest supporting industry of national economy, and is the second largest industry after the auto industry, in the machinery industry, wire and cable products are extensively used in energy, transportation, communications, automotive and petrochemical industry, its development by the international and domestic macro economic situation, national economic policy, industry policy and the influence of various related industries development, closely related to the development of the national economy.

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2019

01-18

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Chenan Super high guide cable manufacturer

Our enterprise spirit is to seek truth and practice and keep improving, and our enterprise culture is to learn, innovate and strive to be advanced. With the guidance of science and technology and sincere service as our product philosophy, we have successively obtained China 3CCC certification, America UL certification and management system certification.

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+86-17342729139

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