Before 1990, only tubes of Aluminum conductor with an outer diameter of less than 130mm could be produced in China, and the alloy was LF21 (3A21). After 1990, it began to develop and produce tubular conductors matching 110~330KV power distribution devices, and the alloy varieties have also developed from the original LF21 to the 6063 and 6101 alloy grades that are in line with foreign countries. Since then, the reliance on imports of tubular conductors has ended. History. In the late 1990s, domestic 50OKV substations rose up all over the country one after another. In order to adapt to the improvement of voltage levels, our company successfully developed 6063, 6101 alloys, and large-sized tubes of Aluminum conductor of 250×10×13000mm in a short period of time. In key power transmission and transformation projects such as the Three Gorges of the Yangtze River.
With the rapid development of my country's national economy, the demand for electricity in production and life is increasing year by year. my country's electricity is developing at an unprecedented speed. During the "Eleventh Five-Year Plan" period, the total investment in the power grid will reach 1.43 trillion yuan, mainly for 31 municipalities directly under the Central Government, provincial capital cities and cities under separate state planning will build and transform power grids, and at the same time strengthen power transmission from west to east and nationwide interconnection. By the end of 2010, except for Tibet, Xinjiang, Taiwan and other regions, the nationwide network will be initially realized; during the "Twelfth Five-Year Plan" and "Thirteenth Five-Year Plan" period, the UHV (±1000KV AC, ±800KV DC) power grid will be fully developed, and by 2020 The total investment of UHV AC and DC transmission lines is about 406 billion yuan, and 53 UHV AC substations have been built, with a substation capacity of 336 million kVA and a line length of 44,500 kilometers. According to the rough statistics of power planning, the demand for tubes of Aluminum conductor will be about 23,500 tons per year in the next three years. The market prospect is very broad.
