AT供电方式下高速铁路钢轨电位抑制措施  

作　　者：杨磊 王新越 姜超东 王志云 邢又元 

机构地区：[1]中国铁路南昌局集团有限公司南昌高铁基础设施段

出　　处：《电气化铁道》2023年第S01期66-70,共5页Electric Railway

摘　　要：AT供电方式下接触网的额定电压为25 kV,最高工作电压为27.5 kV,为保证人身安全和设备安全,必须配套设计安全可靠的回流装置以降低钢轨电位,减弱地回流过大的危害。本文探讨在AT供电方式下加装回流线、上下行钢轨横向连接、加装CPW线、改良部分区段土壤电阻率、特设综合地线等几种钢轨电位抑制措施,以确保人身安全和设备安全。The rated voltage of the OCS under AT power supply mode is 25 kV,and the maximum working voltage is 27.5 kV.To ensure personal safety and equipment safety,it is necessary to design a safe and reliable return current device to reduce the potential of the rail and reduce the harm of excessive ground return current.The paper discusses several rail potential suppression measures under AT power supply mode,such as installing a return wire,horizontal connection wire between up and down rails,CPW wire,improving soil resistivity in some sections,and setting up a special comprehensive earthing wire,for protection of personal and equipment safety.

关 键 词：高速铁路 钢轨电位 回流 抑制措施 

分 类 号：U224.25[交通运输工程—道路与铁道工程]