With a crisp whistle, the hot-slide test train of Shenyang Metro Line 3 slowly returned. At this point, the hot-slide test for the western section of the Phase I project of Shenyang Metro Line 3 was successfully completed a few days ago, laying a solid foundation for the next step of rolling stock debugging and opening to traffic by the end of the year.

　　The hot-slide test is a "major examination" after the catenary is energized. During the test, the metro train ran back and forth in the section at low, medium, and high speeds, conducting comprehensive rolling stock tests of multiple disciplines, including the traction power supply system, pantograph-catenary relationship, signaling, track, and communications, thereby ensuring the normal operation of the train on the line and meeting the conditions for joint debugging and testing.

　　To efficiently complete this hot-slide test, the construction unit, China Railway Electrification Engineering Group Co., Ltd., seized the golden period of construction and production. In the catenary construction, a large number of electric torque wrenches were used to improve the efficiency of catenary installation. In addition, the project department also actively carried out the "50-Day Decisive Battle" labor competition, divided into multiple work teams, and efficiently completed various installation and construction tasks through uninterrupted construction.