HC electronic network] good application of aluminum cable in large projects, is to break the chain of high-priced copper cable fool interests. In recent years, perhaps due to the interests of the relationship between the wire and cable industry is no longer dared to shout out in the wire and cable products, aluminum and copper "national technology policy slogan and replaced by" copper aluminum Festival " this ambiguous term, almost the aluminum core power cable sideline then fast. However, in any case to block the development of science and technology, after all, is to hinder the. In China, aluminum and aluminum conductor cables are quietly application.
Europe and the United States and Japan is already a lot of use of aluminum power cables. Why the same aluminum conductor power cable, is it so difficult to promote in China? Electricite de France (EDF) 63-500kV grid system the ,95-2500mm2 crosslinked polyethylene insulated cables, 70% aluminum conductor, and they did not yell insecurity throughout the day.
In the years of severe fluctuations in the price of copper, the cable industry on the one hand loudly copper prices are too expensive, causing the cable product has no profit at all, while, on the other hand the heart, they fear that the fall in copper prices, which kinds of contradictory feelings that only the parties themselves know best. theaffected by severe fluctuations in the price of copper cable products profit era, should be the best time of the promotion of the aluminum conductor power cable, and we are still adhering to those in the international community has no problem argument, that "aluminum cable easily cause a fire, is it not strange that. International organization specializing in the international promotion of the copper applications, not only can not solve the price of copper, also spared no effort to crack down on the aluminum cable, seriously misleading the technical implementation of the policy of the cable industry.
In fact,a variety of applications in the wire and cable, which by a copper or aluminum cable design specification has expressly provided, as cable manufacturers, it is important that efforts to develop and marketing new products, do not need with a copper core or aluminum core multi-brainer, not to follow behind others booing. Moreover, with the cabling installation technology advances, aluminum conductor oxidation corrosion, subsequent problems, and copper and aluminum conductors the transition joint problems, etc. have been resolved, and not very technical obstacles.
recently, see the online aluminum alloy conductor power cable favored by the New Project, say the cable voice of the user.
reported that, due to the aluminum alloy cables supporting the same copper cable connection terminal can easily achieve docking with the original cable, therefore, mining, transportation around the country, public facilities, power supply projects and new projects can see the shadow of the aluminum cable. Aluminum cable rebound copper 40%, more conducive to ensure the tightness of the clamp terminals connected at the stability of the connection in the state to maintain long-term use. The high cost of aluminum cable is the biggest reason to win the favor of the new project. The construction workers of a construction site, said aluminum cable is to ensure safety at the same time, be able to reduce procurement costs. Can save 40% on the cable purchase. The use of aluminum power cables, construction up very fast, the original plan to use 5 bridge, light weight aluminum cable 3 bridge enough. Some projects beginning to use a new type of aluminum cable. The main building of the new office building of an administrative unit is still selected copper, outside the building, lighting, etc. have been selected for use in corrosion-resistant aluminum alloy cable. Responsible for power supply engineer said, do not see any difference, very stable, aluminum cable prices lower.
From these reports, you can think of the following:
Firstpromote major resistance of aluminum conductor power cable is not completely from the user. User in order to save the cost of the project, at reasonable cost, or willing optional aluminum cable.
cable manufacturers often "election copper disposable aluminum. Some cable manufacturers, the high price of copper material, resulting in the high price of copper cable, easier to enhance the product sales.
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