Rapid transit railway is the trend of world railway development. With the economic and technological development and the serious competition of communications and transportation, many countries take rapid transit railway as the objective of research and development. Contact networks of rapid transit railway and railway line for passenger traffic is the main body and key of rapid transit railway tractive power supply system and railway line for passenger traffic. Based on the discussion of relationship between pantograph and catenary, this article conducts a deep research, and summarizes the main factors of limiting general railway contact networks, expounds general contact networks and rapid railway contact networks comparatively, and makes a summarization and research with purpose.%高速铁路是当今世界铁路发展的潮流,随着经济技术的发展和交通运输的激烈竞争,高速铁路以其独特的优点被许多国家作为大力研制和重点发展的目标,高速铁路和客运专线接触网是高速铁路牵引供电系统和铁路客运专线的主体和关键.论文在以讨论和辨证高速铁路接触网的弓网关系上,进行了深入的研究,同时也总结了抑制普通铁路接触网发展的主要原因.对比性的将普通接触网与高速接触网进行了阐述,具有针对性的概括与研究.
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