摘要
为保证接地施工后的电阻值达到设计规范,以某铁路信号工程项目为例,开展其电缆屏蔽接地防护施工的研究。综合分析电缆屏蔽接地防护原理,根据电缆的外径尺寸,精确切割辅助套管的端口,组装电缆屏蔽密封档环;将电缆牢固地固定在电缆支架上,通过电缆开剥、安装固定环等,完成铁路信号工程电缆续接;采取分段单端接地方式,进行电缆屏蔽接地施工。实践结果表明,设计的施工技术应用后,可以确保所有连续测点的接地电阻均<1Ω,保证接地系统的均匀性和稳定性,达到预期的接地防护效果。
To ensure that the grounding resistance meets the design specifications after construction,this paper presents a study on the construction technology of cable shield grounding protection in railway signal engineering,using a specific project as a case study.The principle of cable shield grounding protection is systematically analyzed.Based on the outer diameter of the cable,the auxiliary sleeve is precisely cut and assembled into a sealing ring for the cable shield.The cable is securely fixed on the cable tray,and the cable splicing is completed through processes such as cable peeling and installation of fixing rings.A segmented single-end grounding method is adopted for the shield grounding construction.Practical results show that the proposed construction method ensures that the grounding resistance at all continuous measurement points is less than 1Ω,maintaining the uniformity and stability of the grounding system,and achieving the expected grounding protection performance.
作者
任晓林
张雨
Ren Xiaolin;Zhang Yu(China Railway First Group Electrical Engineering Co,Ltd.,Xi'an 710000,China;Hebei Vocational College of Rail Transportation,Shijiazhuang 050022,China)
出处
《办公自动化》
2025年第16期119-121,共3页
Office Informatization
关键词
铁路信号工程
原理
施工技术
接地防护
屏蔽
电缆
railway signal engineering
principle
construction technology
grounding protection
shielding
cable
