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State Grid ±400kV DC networking optical communication supporting project in Qinghai&Tibet plateau

 

It is a power transmission system supporting project, having highest altitude and extreme harsh environment in China power communication history. The highest elevation in the project is 5000m and longest single span reaches 295km.
External optical amplification equipment of WXZTE and ZTE’s S385, S330 SDH equipment are put into used in the project to solve difficulties caused by high altitude, extreme cold and 295km+ long haul single span.