杂散电流防护系统的改造  

Stray Current Protection System and its Construction Reform

作　　者：谢伟梁 郭建立 

机构地区：[1]中铁电化局集团一公司,上海工程师200434

出　　处：《城市轨道交通研究》2008年第10期33-36,共4页Urban Mass Transit

摘　　要：地铁建设工程中的杂散电流防护系统在施工过程中经常大范围出现铜测防端子丢失现象而不能保证整个防护系统的完整性。提出了通过跨接电缆将排流网钢筋连成一体的杂散电流防护系统改造方案。提出对跨接后的薄弱地区加装监测点进行极化电压有效监测。改进后的基于光纤通信的集中式杂散电流监测系统使数据得以有效传输,可为地铁运营提供参考数据。Stray current protection in subway construction is a hot topic of conversation, because the copper testing terminals frequently lose in large ranges during the contruction, that threatens the entire protection system＇s integrity. To solve the problem, this paper proposes an improvement based on actual investigations, makes a study on the integrity and scientific nature of the improved protection system. This new method may guard against the the galvano-cautery and the harm of stray current effectively by installing test points for the weak areas to monitor the polarizing voltage, and this improved stray current protection system will transmit the data more effectively, provide useful reference data for subway operation.

关 键 词：地铁 杂散电流防护系统 测防端子 电缆跨接 

分 类 号：U231.8[交通运输工程—道路与铁道工程]