Analysis of External Environmental Operating Risk Factors for Overhead Contact System
摘要
The overhead contact system plays it promising role in guaranteeing energy transmission and safe and reliable operation for electric locomotives of high-speed railway. Due to its outdoor construction, it is highly susceptible to external environmental risks. In particular, the faults are more triggered by extreme weather conditions, such as lightning strikes, floating object intrusion due to high winds and insulator flashover caused by fog-haze, accounting for the largest proportion among failure causes. In this case, aims to identify the external environmental factors with high-level risks and provide a theoretical foundation for improving the reliability of catenary equipment in the future, based upon data mining, literature review, and characteristic analysis of traction power supply system.