Recently, the company's ultra-high voltage project made another major breakthrough. (2500mm2) 220kV ultra-high voltage cross-linked cable was successfully trial-produced and successfully rolled off the production line.

220kV ultra-high voltage cross-linked cable is currently a cable product with a higher voltage level in China. It is mainly used in medium and long-distance power transmission, hydropower stations, pumped storage power stations, urban and rural power grid construction and other fields. It can increase the transmission capacity of power transmission and distribution lines and reduce the cost of power transmission. loss. The successful trial production of 220kV ultra-high voltage cross-linked cables can further improve the product process and test the equipment production capacity. It also plays a positive role in improving the company's market visibility and building its brand.

As one of the major technical transformation projects during the 11th Five-Year Plan period, the ultra-high voltage cable project has invested hundreds of millions of yuan. Among them, the tower is 148 meters high. It adopts the world's most advanced one-tower four-wire design, and has built the world's first modern integrated manufacturing system (CIMS) for the cable industry. Key equipment is imported from abroad. The successful trial production of 220kV ultra-high voltage cross-linked cables has laid a solid foundation for Shangshang’s ultra-high voltage cable production capacity and technology improvement, and provided guarantee for the further development of 500kV cross-linked cables. In the future, Shangshang will repay customers' trust and support with better ultra-high voltage product quality and services.