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China's aluminum alloy cable market will open a new situation

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As a heavy material and light industry, the wire and cable industry has a large demand for materials and high requirements, especially for copper. However, due to the high price of copper and uneven quality

As a heavy material and light industry, the wire and cable industry has a large demand for materials and high requirements, especially for copper. However, due to the high price and uneven quality of copper, China's wire and cable industry has been seeking a new alternative for many years to reduce production costs on the basis of ensuring that product performance is not reduced. Because of this, in recent years, the voice of "saving copper with aluminum" and "replacing copper with aluminum" has been rising. The same is true, aluminum alloy cable from the development, production to the market has attracted a lot of attention. And more and more large domestic cable manufacturers began to increase research and development costs, and actively enter the aluminum alloy cable market.
Obviously, in western countries, aluminum alloy cable products is not a new thing, but the application in China is undoubtedly relatively new, especially the aluminum alloy cable products produced by China's local wire and cable manufacturers through independent research and development are also a blank in the industry, so it is of great significance to China's wire and cable industry. In the use of aluminum alloy cable products, it does show extraordinary process performance. In fact, this point has come to a number of conclusions 30 years ago, such as the United States GC company on the reliability of the connection part of the copper clad aluminum wire concluded that: can be connected in the same way as the copper wire. UL also studied the accidents caused by poor connection of 10AWG and 12AWG aluminum wires, while copper clad aluminum does not have this problem. UL also developed a copper clad aluminum conductor standards (UL1561-2001). In addition, the British BICC company after seven years of research on the cable and connected power load, after 10 million hours of trial and error, the results show that: copper clad aluminum in the economy, technology can compete with copper wire, and the price is stable.
As a developed country of wire and cable, neighboring Japan also attaches great importance to the research and development and production of aluminum alloy cables. Among them, Japan's Wire Co., Ltd. has conducted a lot of investigations and studies on whether copper-clad aluminum is used as a conductive material for wire and cable. The contents of the research test include:(1) the conductor structure of copper clad aluminum (the relationship between the wire diameter and thickness of copper ratio 10-15%);(2) physical and mechanical properties;(3) surface characteristics, especially the contact resistance of aluminum is particularly large, and copper clad aluminum is as good as copper. At the same time, the bending rigidity, repeated bending, repeated winding and so on were tested.
In addition, the electric wire co., ltd. has also conducted a lot of research on the connection of connectors and wiring appliances:(1) the test of contact resistance;(2) the electric heat cycle test. Research on the connection with copper connectors:(1) the use of selected size range;(2) the effect of secondary crimping;(3) the suitability of various connectors and connectors. After several years of practical research has proved that copper clad aluminum has:(1) easy connection;(2) reliable connection;(3) light quality;(4) good winding;(5) economic, with the same safety and reliability as copper wire.
However, although foreign developed cable countries have confirmed that aluminum alloy cable products have many superior properties, and domestic aluminum alloy cable product development and production have also achieved certain results, but want to in a short period of time "aluminum instead of copper" is not easy. People have a process to accept new things, and the same is true for aluminum alloy cables. This requires companies to continue to create successful cases, so that more people can experience the changes brought about by new cables. As the saying goes, there are no rules and no countryside. Domestic aluminum conductor cable due to the lack of relevant industry standards, the market is not standardized. China's cable industry standards lag, and Europe and other countries still have some gaps in the standard system.
The lack of a unified national standard has become the biggest obstacle to the promotion of aluminum alloy cables. If this problem can be solved, aluminum alloy cable will get greater development in China. There is no corresponding industry standard or national standard for aluminum alloy cable in China, and there is no standard for design, procurement, use and acceptance. Aluminum alloy cable has been popularized and applied in China for several years, and its market share and application field are increasing year by year. The user's attitude towards aluminum alloy cables has gone through several stages of conflict, questioning, understanding and acceptance.
However, 2014 is undoubtedly a bumper year for aluminum alloy cable research and development and production enterprises. The main reason is that the State Grid Materials (2014) No. 880 Company Document (available for external use) has been issued recently. The title of this document is "State Grid Corporation Document: Reply to Recommendation No. 9287 of the Second Session of the 12th National People's Congress". The document affirms the importance of "replacing copper with aluminum" in the wire and cable industry, at the same time, it is pointed out that aluminum alloy cables with voltage levels such as 10kV and 1kV have been applied in the units affiliated to the national cable company, and corresponding material numbers are available for filing, and aluminum alloy cables have been included in the new technology catalogue of the 2014 edition of the national grid company.
At the end of the document, it is pointed out that "aluminum alloy cable products still have the following problems that need to be improved or solved: first, to further improve the product standards and testing standards of aluminum alloy cables and accessories; second, the core technologies such as material formula and manufacturing process of aluminum alloy cable conductors, there are only a few enterprises at present; third, it is necessary to continuously accumulate 10kV and above product application experience." That is to remind customers who have demand for aluminum alloy cable conductors and aluminum alloy cables to identify manufacturers with core technologies such as advanced formulas and first-class production processes as suppliers.
The issuance of this document with milestone significance is undoubtedly the most exciting news for manufacturers specializing in the production of aluminum alloy conductors. Some experts believe that the formulation of industry standards for aluminum alloy conductor low-voltage cables has laid the foundation for product evaluation and quality supervision, and is an important means and measures to regulate the product market.
Therefore, 2014 is a bumper year for aluminum alloy cable R & D and production enterprises. As the State Grid Corporation of China incorporates aluminum alloy cables into the State Grid Corporation's 2014 new technology catalog, it means that the application of aluminum alloy cable products in the Chinese market will Open a new situation, and it also means that China's wire and cable industry has taken a step towards the goal of "becoming bigger and stronger.