Abstract: A conductive mounting structure for a lighting lamp. The lighting lamp comprises a first assembly (1) connected to a power supply and a second assembly (2) having a light source; the first assembly (1) comprises a first mounting member (11), and the second assembly (2) comprises a second mounting member (21). The first assembly (1) and the second assembly (2) are connected by using a connection structure. The connection structure comprises a contact (3), and a conductive component (4) conducted after being in contact with the contact (3), the contact (3) and the conductive component (4) are respectively provided on the first mounting member (11) and the second mounting member (21), and the contact (3) is in contact with the conductive component (4) after the first assembly (1) and the second assembly (2) are assembled and combined.

Abstract: The present invention relates to the technical field of train power supply and operation control, and provides a three-rail power supply control system for an electrical railway train. Power supply rails in the system are divided into a first power supply rail, a second power supply rail, and a third power supply rail, wherein the first power supply rail, the second power supply rail, and a running rail constitute a three-phase AC power supply loop, and the third power supply rail and the running rail constitute a DC power supply loop. An AC-DC-AC variable voltage variable frequency device supplies power to a train traction motor by means of the three-phase AC power supply loop and current collectors. Frequency modulation and voltage regulation power supply is conducted by means of the AC-DC-AC variable voltage variable frequency device on the ground to achieve train driving and operation control.