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作 者:吴现濮 Wu Xianpu(Henan Communication Planning&Design Institute CO.,LTD.,Zhengzhou 450000,China)
机构地区:[1]河南省交通规划设计研究院股份有限公司,郑州450000
出 处:《黑龙江科学》2023年第20期135-138,共4页Heilongjiang Science
摘 要:某高速公路地处雷暴高发区,机电系统极易因雷击受损,为确保其安全运行,提出机电设备接地改造技术方案及实践要点,采用接地电阻测量仪法(或电压表法)验证接地改造效果。结果表明,改造后,实测电阻下降,达到规范要求,符合《公路隧道交通工程设计规范》(JTG/T D71-2004)相关要求,改造效果良好,可为类似工程接地改造提供参考。An expressway is located in an area with high incidence of thunderstorms,and the electromechanical system is easily damaged by lightning strikes.In order to ensure its safe operation,the technical scheme and practical points of grounding modification of electromechanical equipment are put forward.The method of grounding resistance measuring instrument(or voltmeter method)is used to verify the effect of grounding modification.The results show that the measured resistance decreases and meets the requirements of the specification and the relevant requirements of Design Code for Highway Tunnel Traffic Engineering(JTG/T D71-2004).The modification effect is good,which can provide reference for the grounding modification of similar projects.
分 类 号:U453.7[建筑科学—桥梁与隧道工程]
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