对地铁轨道电位异常升高的研究

Study on Rail Potential Anomalies

地铁轨道电位的异常是影响列车安全稳定运行的重要因素。对轨道电位的产生、危害及影响轨道电位升高的因素进行了分析。结合南京地铁1号线轨道电位异常的问题,提出了轨道电位异常分析研究的一般方法,以及针对不同原因导致轨道电位升高的处理方法。

The rail potential anomalies are important factors for the safe and stable running of metro vehicles.The origin and the hazard of rail potential and the factors which impact on the elevated rail potential have been analyzed.In light of the rail potential anomalies happend in Nanjing metro Line 1,this paper provides a general analytic method,discuses the different reasons for the elevated rail potential.By using this research method in Nanjing Metro Line 1,this paper hopes to track the actual mechanism of potential problems,and look for the effective countermeasures.