At present, China high voltage load switch model is based on national technical standards generally consists of text symbols and numbers in the following manner on behalf of significance for the composition of its high-voltage switch has been serialized models have the following meanings ①②③④⑤⑥① high voltage switch category F G load switch fuse disconnectors R ②N households How endo-W Outdoor Design No. ③ ④ voltage (kV) ⑤R with fuses code (without the fuse does not represent) ⑥S fuse switch mounted on the upper end (mounted on the lower end of the switch does not represent) the structure of the vacuum load switch forms load switch, and as China's urban and rural power grids and structural innovation; the existing main indoor and outdoor vacuum load switch vacuum load switch two categories Suizhou load switch, outdoor vacuum load switch is in our rural network construction and reconstruction developed for use in rural areas of the site domain environment, with our unique style of architecture. Vacuum load switch is characterized by light weight, small size Anyang load switch, without a strong sound and light phenomena in breaking the current process, the vacuum interrupter contacts with a copper tungsten or copper alloy iron selenium and tellurium, greatly reducing the closure value and strengthen the ability of anti-welding, mechanical life and electrical life greatly exceeds the general load switch, can reach more than 2,000 times the number of operations. Huaibei load switch, Huayi Electric Power (certified), load switch provided by Xian Huayi power plant. Xian Huayi power plant (www.xahy.com) is a leader in Xi'an, high voltage circuit breakers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Huayi power in leadership with the staff warmly welcome all inquiries negotiations to create electricity Huayi a better future.