At 16:45 pm on May 25th, as the pantograph of the passenger car parked on the Banqiao parking lot steady drop down, the "hot-slide" test of the 2nd Phase of the Chengdu Metro Line 3 Project had been successfully completed after 72 hours’ bravely struggle. This “hot-slide” marks the conformity of the various indicators of the catenary engineering and the reliability of the functions, and verifies that the catenary has the conditions for reliable power that supply to the electric bus.