Dianci bileiqi, 2019 为掌握接地模块在雷电冲击电流下对接地体的降阻效果,指导防雷接地的优化设计和改造,在不同土壤环境和冲击电流幅值下,对接地模块的非金属包围层,及接地模块安装数量和位置对水平接地体冲击特性的影响进行了对比试验研究。结果表明,接地模块的降阻效果在小幅值冲击电流下更显著,在火花放电效应极其强烈的高土壤电阻率和大幅值电流下,接地模块与其极芯导体的冲击特性曲线几乎一致,围绕在极芯周围的非金属包围层降阻材料作用被淹没。在同样条件下,圆形接地模块的降阻效果优于方形和梅花形。水平射线上的接地模块,宜优先布置在首端注流点 ...
童雪芳 +5 more
doaj
Dianci bileiqi输配电线路防雷的重点均在于降低杆塔的接地电阻，但配电线路杆塔往往因距离居民生活区较近而缺少一定的接地施工面积，使得常规的杆塔降阻措施的应用受到了一定限制，并存在接地电阻不能达标等问题。本研究首先利用有限元仿真计算软件COMSOL Multiphysics建立了配电线路杆塔桩基自然接地仿真模型，计算分析土壤电阻率、杆塔埋深等因素对桩基冲击散流特性的影响规律；然后针对现有同塔多回配电线路所面临的耐雷性能不佳与接地降阻可供施工面积不足等问题，提出基于柔性接地模块的杆塔紧凑型接地降阻策略 ...
刘伟 +5 more
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[Research progress on external cervical resorption]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanChen R +5 more
europepmc +1 more source
[Epidemiology, Mechanisms, and Clinical Challenges of Respiratory Syncytial Virus Co-infections in Children]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanHuang H, Chen H, Qiao L.
europepmc +1 more source
[Research on Bacteriophage Resistance: Coevolutionary Arms Race Between Bacteria and Phages Drives Novel Antibacterial Therapies]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLi R +7 more
europepmc +1 more source
[Research progress on elbow joint rehabilitation robots]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanLi M, Xu F, Wang D, Xu J.
europepmc +1 more source
[Acupuncture alleviates chronic airway inflammation in obese asthmatic mice by downregulating Vnn1 and FAM126B]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoLi X, Ye T, Xi L, Li C, Liu H.
europepmc +1 more source
[The role and mechanism of chemokine network in promoting osteoarthritis progression by regulating synovial macrophage heterogeneity]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLin Y, Wu L, Chen Q, Shen B.
europepmc +1 more source
[Progress in clinical research related to viral hepatitis in 2025]. [PDF]
Zhonghua Gan Zang Bing Za ZhiDing Y, Li Y, Dou XG.
europepmc +1 more source
[Perioperative management of a patient with Kennedy disease undergoing knee replacement: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanBai P, Zhang H, Wang J, Zhu H, Zeng H.
europepmc +1 more source