地铁停车场杂散电流防护设计的几个关键问题  

Key Issues in Stray Current Prevention Design for Metro Depot

作　　者：靳凯[1] JIN Kai(Shanghai Tunnel Engineering&Rail Transit Design and Research Institute,200235,Shanghai,China)

机构地区：[1]上海市隧道工程轨道交通设计研究院,上海200235

出　　处：《城市轨道交通研究》2021年第6期180-182,187,共4页Urban Mass Transit

摘　　要：停车场的杂散电流防护一直是地铁工程中的薄弱环节。目前,大部分地铁停车场主要通过设置绝缘轨缝和单向导通装置隔离回流电流来达到降低杂散电流的目的。通过对电气化股道车挡前绝缘轨缝的设置、镟轮库设备打火、正线杂散电流对车场的影响等问题进行分析,提出了相应的优化措施。Stray current prevention of metro depot has always been a weak part in metro projects.At present,a lot of depots reduce stray current by setting insulation rail gap and unilateral connecting device to isolate the current.By analyzing problems such as setup of insulation rail gap before buffer stop on electrified track,wheel lathe garage equipment short-circuit and unilateral-conducting frame reverse conduction that are existing in current prevention measures,corresponding optimization solutions are proposed.

关 键 词：地铁 停车场 杂散电流 绝缘轨缝 单向导通装置 

分 类 号：TG172.84[金属学及工艺—金属表面处理]