摘要
针对目前铁路信号楼内电子信息设备接地采用的“共地不共线”方案,通过理论计算和数据分析,研究不同类型接地线之间环路感应高电压对电子信息设备的影响,接地线长度与干扰波长频率的谐振关系,以及不同保护性接地方式下的人体接触危险电压,提出了电子信息设备功能性接地和保护性接地的基准点,为信号楼内设备接地和等电位连接总体技术方案研究提供理论基础。
In view of the current “common ground but not collinear” scheme adopted for the earthing of electronic information equipment in the railway signaling building,the theoretical calculation and data analysis are conducted to study the impact of loop induced high voltage between different types of earthing wires on electronic information equipment,the resonance relationship between the length of the earthing wire and the interference wavelength frequency,and the human body contact dangerous voltage.The datum points for the functional earthing and protective earthing of electronic information equipment are proposed,providing a theoretical basis for the research on the overall technical scheme of equipment earthing and equipotential bonding in the signaling building.
作者
谢宝军
吴歆彦
王学林
刘立峰
XIE Baojun;WU Xinyan;WANG Xuelin;LIU Lifeng
出处
《铁道通信信号》
2023年第7期35-39,共5页
Railway Signalling & Communication
基金
中国国家铁路集团有限公司科技研究开发计划课题(J2020Z505)。
关键词
信号楼
接地
环路感应
谐振关系
接触电压
基准点
Signaling building
Earthing
Loop induction
Resonance relationship
Contact voltage
Datum point
