| 雷击时建筑物内磁场分布的研究 |
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| 引用本文： | 林福昌,姚宗干,蒋政龙. 雷击时建筑物内磁场分布的研究[J]. 华中科技大学学报(自然科学版), 1998, 0(4) |
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| 作者姓名： | 林福昌 姚宗干 蒋政龙 |
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| 作者单位： | 华中理工大学电力工程系，湖南省电力试验研究所 |
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| 摘 要： | 提出了雷击时室内磁场分布的计算方法，分析了雷击建筑物时在室内产生的磁场的一些特点，比较了不同结构的雷电保护系统对磁场分布的影响．实验结果验证了计算方法的正确性．
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| 关 键 词： | 雷击；磁场分布；数值计算 |
Research on the Distribution of Magnetic Field in the Building During Lightning Strike |
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| Lin Fuchang Dr., Dept. of Elec. Power Eng.,HUST,Wuhan ,China. Yao Zonggan Jiang Zhenglong. Research on the Distribution of Magnetic Field in the Building During Lightning Strike[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1998, 0(4) |
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| Authors: | Lin Fuchang Dr. Dept. of Elec. Power Eng. HUST Wuhan China. Yao Zonggan Jiang Zhenglong |
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| Affiliation: | Lin Fuchang Dr., Dept. of Elec. Power Eng.,HUST,Wuhan 430074,China. Yao Zonggan Jiang Zhenglong |
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| Abstract: | When lightning strikes a building, there is strong magnetic field in the building which is equipped with protecting system. The magnetic field is created by current in return path of strike and in lightning protecting system. The return path of strike and conductors of the protecting system can be represented by an additional thin wire in the wire axis for the computation of magnetic field, and the shielding effect of the wall in the building can be ignored. A method for numerically calculating magnetic field in the building struck by lightning is described. The waveform and distribution of magnetic field strength in the building with typical protecting system are also obtained. Finally, the calculation method is verified by the result of the experiment using impulse current. |
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| Keywords: | lightning strike magnetic field distribution numerical calculation |
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