The status of Arch Arc in the High-speed electrified railway

With the speed of electrified railway improving, the getting worse arch arc, has become one of constraining bottleneck in the development of China high-speed railway. This paper has discussed the hazards of arc to the contact wire, pantograph skateboards, communication signals, radio signals and power quality. From the aspects of arc model, arc energy, arc erosion and carrier friction, summarizes the research actuality of to arc issues ,and affords information in research work for further reference.