The market demand for high-temperature cables is growing

Although China is currently the largest producer of wire and cable in the world, nearly 10,000 cable companies are large and small, but more than 90% of the enterprises are small and medium-sized enterprises. Product homogeneity and redundant construction are serious. The products are almost at the low end of the line. As a result, there are few manufacturers of special cables such as fire-resistant cables, rolling stock cables, nuclear power plant cables, and heating cables, which account for less than 1% of the total number of existing wire and cable manufacturers. Continue to rely on imports. High-temperature cables, as an important part of special cables, have a strong “vitality” and the current market is showing a trend of oversupply. On the basis of high-temperature cables, the relevant national plans also set up support for major projects of "high-temperature superconducting transmission." At present, according to rough statistics, the sales of special cable products in China each year is about 40 billion yuan, accounting for about 30% of the total sales of the domestic cable market, and high-temperature cable demand is strong. Since the beginning of this year, the successful development of superconducting cable projects around the world and the realization of grid-connected demonstration operations have been one after another. The "superconducting power transmission" that has been studied for more than 20 years has finally entered the practical stage. It is expected that the commercial operation will start within five years. Although strongly supported by the country, the research and development level of China's high-temperature cables is far from meeting the needs of the new market. At the same time, it is estimated that by 2020, the total market for global superconducting applications will reach 244 billion U.S. dollars, and high-temperature superconducting cables will account for about 5% of the total. Some experts believe that although China's R&D and application of superconducting power are lagging behind those of the United States, if we seize the opportunity to develop vigorously, it is expected that by 2025 China's superconducting power is expected to reach US$913 billion, of which superconducting cables will account for about 55%. .

At present, the world’s first high-temperature superconducting cable with the largest transmission current—current carrying capacity of 10 kA—has been successfully developed in China. This is also the world’s first high-temperature superconducting DC cable that realizes grid-connected demonstration operation, marking China’s New breakthroughs have been made in the development of large-capacity superconducting cables, and they have taken a leading position internationally. This move has aroused great attention from academics in the academic world. At the same time, the expert advisory group headed by Academician Yan Luguang of the Chinese Academy of Sciences and Academician Gu Guoxuan of the Chinese Academy of Engineering believes that the biggest characteristic of superconducting transmission is its large transmission capacity, low loss, high current density, and small size. This high-temperature superconducting cable will be used in China. The development of superconducting cable technology in the world has greatly promoted the development. In addition to the future development trend of high-temperature superconducting cables, there are still many areas where the demand for special cables will be greatly increased. For example, the average annual demand for locomotive cables will reach 160,000-200,000 kilometers; the demand for communication and signal cables will also reach 70,000 - 10 thousand kilometers. In addition, the implementation of urban rail transit construction has also won a huge market for China's wire and cable industry. It is predicted that the annual demand for vehicle cables will be around 30,000 kilometers, while the annual demand for signal cables for general traffic will be around 20,000 kilometers.... Against this background, it is not difficult to see that China's wire and cable industry challenges and opportunities coexist, cable companies only firmly grasp this opportunity, review the situation, rule out malignant and disorderly competition, through mergers and reorganization, increase technology research and development, in-depth high-temperature superconductivity The cable high-tech cable industry can obtain considerable economic benefits, and at the same time improve China's level in the field of high-temperature superconductivity and revitalize China's cable industry.