地铁直流牵引系统杂散电流防护问题的研究

摘要

The paper introduces the causes and harmfulness of the stray current generated by rail return mode DC traction system in subway and main protection measures need to be taken,and analyzes the existed problems in design,construction and operation of the stray current protection for domestic subways,points out the problems of corrosion prevention by taking drainage arrangement in domestic subways,puts forward the proposals for stray current protection for DC traction system of the domestic subways in terms of its design,construction and operation.%介绍了地铁钢轨回流方式直流牵引系统杂散电流产生的原因和危害,以及采取的主要防护措施,并针对国内地铁杂散电流防护在设计、施工、运营中存在的问题进行了分析研究,指出了目前国内地铁采用排流法防腐存在的问题,同时从设计、施工、运营等方面对国内地铁直流牵引系统杂散电流防护提出了建议。