Recently, the Xi'an East Station Four Electric Project, undertaken by China Railway First Group CO., Ltd., successfully completed the thermal sliding test of the entire overhead contact system. This breakthrough means that the traction power supply and contact network system of the project have successfully completed the two core tasks of "power transmission" and "hot sliding" as planned, clearing key obstacles for subsequent joint debugging and testing and timely opening.

After 12 hours of successful power transmission, the contact network thermal slip test will be immediately initiated. The construction party has closely cooperated with various units such as the Xi'an Station Reconstruction and Expansion Project Headquarters, Xi'an High speed Railway Infrastructure Section, Xi'an Locomotive Depot, and design and supervision units, and formed a joint working group including China Railway Consulting and Supervision, High speed Railway Infrastructure Section, Xi'an EMU Depot, etc. In the experiment, electric locomotives were operated by inspectors to conduct dynamic and comprehensive inspections of the pantograph catenary relationship between each track and switch at speeds not exceeding 40 kilometers per hour on the main line and 20 kilometers per hour on the station line. The team focused on monitoring key indicators such as contact wire pull-out value, height, suspension elasticity, line switch transition, and segmented insulator status, accurately verifying the stability and matching of the power supply system under live conditions. key word; Xi'an, railway hub, hot sliding test

The one-time success of the power transmission and thermal sliding work has connected the "energy artery" of the traction power supply system at Xi'an East Station hub, achieving smooth communication between the pre station and post station projects. This marks the official entry of this largest railway hub project in Asia into a new stage of joint debugging and testing, laying a solid foundation for its scheduled opening and operation in 2026.Editor/Gong Ziwei