Shanghai Electric promotes rare earth high-speed rail aluminum alloy power cable upgrade

According to the bulk non-ferrous net reprinted: the traditional cable is generally copper, but the current situation in China is the lack of copper resources, rare earth resources and aluminum resources are particularly rich. A few days ago, Shanghai Electric Power Institute and Guangdong Xinyi Aluminum Alloy Cable Co., Ltd. jointly established a high-level laboratory for rare earth high-speed rail aluminum alloy power cables at Shanghai Electric Power University, which strongly promoted the technical upgrading of rare earth high-speed rail aluminum alloy power cables, helping the Chinese to achieve On behalf of copper "dream. The two parties will also cooperate in the establishment of Shanghai Electric Power Co., Ltd. Xinyi Cable Sales Co., Ltd. to jointly promote the use of rare earth high-speed rail aluminum alloy power cables.

Relevant experts told the reporter 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, chain interlocking, and environmental performance. The economic advantages are even more obvious. Under the same ampacity and the same length, the overall cost is lower than that of copper cables by more than 30%. In addition, the rare earth high-speed iron and aluminum alloys are lightweight and have good bending performance, and the installation cost can be reduced by 20%-50% compared with copper cables. about. The service life is longer than that of copper cables by at least 10 years, which greatly saves the cost of secondary investment.

According to the China Nonferrous Metals Network statistics, China’s reserves of copper resources are approximately 60 million tons, accounting for approximately 5% of the world’s total reserves. Copper imports remain high, and China’s domestic supply of copper concentrates is less than 30%, with a ratio of over 70% required. Reliance on imports is much higher than the foreign dependence on iron ore and petroleum in China. The reserves of aluminum resources reached 3 billion tons, accounting for about 12% of the world total.

Pure aluminum materials have many deficiencies in terms of mechanical properties. The Shanghai Electric Power Institute itself has a solid scientific research base for nano rare earth research, metal materials and cable research. The person in charge of the school’s industry office said that the establishment of a high-level laboratory will be further researched and developed on the rare earth high-speed iron alloy material developed by Xinyi Group, so that the rare earth high-speed iron aluminum alloy material will be more widely used in power transmission, and the rare earth high-iron aluminum 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.