摘要
针对科研生产厂区独立接地系统难以长期有效降阻的问题,基于有限元理论建立了建筑独立接地系统的雷击暂态接地模型,基于该模型探究了有限面积下建筑独立接地装置的防雷降阻优化方法。研究结果显示,对于有限面积下安装的独立接地系统,采用接地网加装接地模块以及双地网加装垂直接地极的方式均有良好的降阻效果。在考虑造价经济性的前提下,使用双地网配合垂直接地极、且垂直接地极间距为10 m~20 m时有更好的降阻效果。研究结果对有限面积下建筑物独立接地系统的设计与优化具有一定的参考意义。
Aiming at the problem that the independent grounding system in the scientific research and production plant is difficult to effectively reduce the resistance for a long time, the impulse transient grounding model of the independent grounding system of the building is established based on the finite element theory. Based on this model, the optimization method of lightning protection and resistance reduction of independent grounding system in confined space was explored. The results indicate that the grounding device set in the confined space, the grounding grid combined with the grounding module and the double grounding grid combined with the vertical grounding electrode have better optimization effects. At the same time, considering the resistance reduction effect and cost economy, the use of double grounding grids with vertical grounding electrodes and the vertical grounding electrode spacing of 10 m~20 m has better resistance reduction effect. The research results have certain reference significance for the design and optimization of the independent grounding system of buildings with confined space.
作者
古维富
陈俊峰
冉秀娟
邱锦磊
尹蕾
GUWeifu;CHEN Junfeng;RAN Xiujuan;QIU Jinlei;YIN Lei(Metrology and Testing Center of China Academy of Engineering Physics,Mianyang 621900,China)
出处
《电瓷避雷器》
CAS
北大核心
2023年第1期157-164,共8页
Insulators and Surge Arresters
关键词
有限面积
独立接地系统
接地电阻
防雷优化
confined space
independent grounding system
ground resistance
lightning protection optimization
