接触网系统保护方式的探讨

接触网的保护方式关系到接触网系统的可靠性,本文就目前电气化铁道上所采用的接触网主要保护方式进行了论述及比较,分析了回流线加避雷器或“S”形角隙、回流线加双重绝缘、回流线加闪络保护地线这3种保护方式的原理及优缺点,并从技术、经济方面进行了比较,推荐采用回流线加闪络保护地线方式。

The protection mode of OCS has a close relation with the reliable operation of OCS, the paper illustrates and compares the main protection modes adopted in existing electrified railways, analyzes the principles, advantages and short comings of three protection modes of return conductor plus lightning arrestor or 揝?type horn gap, return conductor plus double insulation and return conductor plus flashover protective earth wire, and through technical and economical comparison of them, it recommends that the mode of return conductor plus flashover protective earth wire shall be adopted.