The Third Rail Protective System
The third rail is also called the power supply rail, which refers to a track installed next to the urban rail (subway, light rail, etc.) line and used for power supply alone. When the subway locomotive is in operation, its power comes from the catenary or the third rail contact rail. The working voltage of the general contact rail is as high as thousands of volts, which requires a good protection system.
FRP products have a series of characteristics such as light weight, high strength, excellent insulation, acid and alkali resistance, anti-aging, and strong designability, making them widely used in contact rail protection systems. According to the different power supply forms of the contact rail, in the form of upper contact power supply, the main products include insulating support, upper protective cover, and protective cover bracket; in the form of lower contact power supply, the main products include integral insulating support, lower protective cover, support card etc.
