Research On The Fuzhou-xiamen High-speed Railway Catenary Insulator Contamination Cause Analysis And Preventive Countermeasures

At this stage, rapid economic development, air pollution has become an inescapable problem. Catenary systems are open-air installation, and no backup running environment is also very complicated, exposed to the atmosphere in the run catenary insulator Filth more and more serious. When the surface of the waste accumulated to a certain extent, under certain climatic conditions, catenary line may occur a large area of flashover. Flashover as a hidden catenary line failure, often resulting in traction substation switch tripping, the failure is difficult to locate, but it can cause railway line failure outage, transportation long interruption, to bring very serious economic development influences. Fuzhou-Xiamen railway complex geological conditions, bridges, tunnels accounted for heavier, some sections of the coast or sea-crossing erection, way many segments of industrial pollution, industrial pollution emissions, dust resulting catenary large area outside of insulator contamination phenomenon.The main objective of this article is through the Fuzhou-Xiamen line insulator contamination and pollution degree of site investigation and research, combined with weather conditions along the route, select the part of a targeted test points, analyze its insulator salt density, ash density value and the contamination rate, relying scientific testing methods analyze the impact of various types of contamination and meteorological conditions on the performance of the insulator, the establishment of the contamination rate can be used as insulation design guidelines for distribution, measuring contamination levels and reasonable division of contamination area, targeted and site proposed to adapt the railway insulators flashover preventive measures, improve efficiency and economic efficiency, to ensure the safety of railway transportation stability.