China XD Group provided Wu-guang special railway passenger transport line, Zheng-Xi special railway passenger transport line, project in Lan-Wu secondary line., Ha-Shan line project, Qinghai-Tibet railway project, He-Ning special railway transport line, Da-qin railway project and Qin-Shen special railway passenger transport line etc many domestic important electric railway projects with signal cable and power cable which quality was up to the advanced level in the world.
1. Qinghai-Tibet railway project
Qinghai-Tibet railway was the plateau railway with highest altitude and longest line in the world, it had too many the tops of the world: Fenghuoshan tunnel – the highest plateau permafrost tunnel in the world; Tangula station – the station with the highest altitude in the world; Yangbajing No. 1 tunnel – the longest plateau railway tunnel in the world; railway with the longest strong ultraviolet radiation time……It was a great engineering in the history which can compare favorably with the Greatwall. Golmud-Lhasa section of Qinghai-Tibet railway was total 1142km, its bad natural environment and operation requirement for high performance put forward higher requirements on system equipments and transmission lines. In order to meet the requirements of bad natural environment of Qinghai-Tibet railway and ensure the normal operation of equipments, consigned by Ministry of Railways, Xi’an Optical Power Cable of XD Group developed and produced special switch machine cable and various signal cable suitable to plateau cold, anti-extrusion by ice, anti-radiation by strong ultraviolet, anti-bite by various rodents, anti-disturbance by strong electromagnetic field, corrosion-proof, termite-proof which was ordered nearly 1900km and over 60 million Yuan.
2. Wu-Guang and Zheng-Xi special railway passenger transport line projects