The traditional cable is generally made of copper, but the current situation in China is the lack of copper resources, and the rare earth resources and aluminum resources are particularly rich. Recently, Shanghai Electric Power College and Guangdong Xinyi Aluminum Alloy Cable Co., Ltd. jointly established a high-level laboratory of rare earth high-iron aluminum alloy power cable at Shanghai Electric Power College, which promoted the technical upgrading of rare earth high-iron aluminum alloy power cable and helped Chinese people realize The dream of replacing the copper. The two parties will also cooperate to establish Shanghai Electric Power Plant Xinyi Cable Sales Co., Ltd. to jointly promote the use of rare earth high-iron aluminum alloy power cables.
Relevant experts told reporters that rare earth high-iron aluminum alloy cable conductors are superior to copper cables in terms of high elongation performance, high flexibility, bending performance, low resilience, creep resistance, product chain-loading characteristics and environmental performance. The economic advantage is more obvious. Under the same current carrying capacity and the same length, the comprehensive cost is reduced by more than 30% compared with the copper cable. In addition, the rare earth high-iron aluminum alloy is light in weight, good in bending performance, and the installation cost can be reduced by 20%-50% compared with the copper cable. about. The service life is longer than the copper cable for at least 10 years, which greatly saves the secondary investment cost.
According to the statistics of China Nonferrous Metals Network, China's copper resource reserves are about 60 million tons, accounting for about 5% of the world's total reserves. Copper imports are still high. China's domestic copper concentrate supply is less than 30%, and more than 70% of the demand is needed. Dependence on imports is much higher than the external dependence of China's iron ore and oil. The reserves of aluminum resources reached 3 billion tons, accounting for about 12% of the world total.
Pure aluminum materials have many shortcomings in mechanical properties. Shanghai Electric Power College itself has a strong scientific research foundation for nano rare earth research, metal materials and cable research. The person in charge of the school's industrial office said that the preparation of high-level laboratories will be further researched and developed on the rare earth high-iron aluminum alloy materials developed by Xinyi Group, so that rare earth high-iron aluminum alloy materials can be applied more widely in power transmission, and rare earth high-iron aluminum is carried out. The research and development of alloy power cable supporting and control products strives to serve the national energy strategy, making the technology popularized within the power system.
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