| 浅谈压敏电阻在电源防雷中的使用寿命 |
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| 引用本文： | 于华都. 浅谈压敏电阻在电源防雷中的使用寿命[J]. 铁路通信信号工程技术, 2007, 4(5): 10-12 |
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| 作者姓名： | 于华都 |
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| 作者单位： | 中国铁路通信信号集团公司 |
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| 摘 要： | 雷电防护中的压敏电阻,在受到雷电冲击后,通流量和导通电压呈指数下降,因此,用于电源系统雷电防护的压敏电阻的使用寿命和更换周期应依据当地雷暴日的数量计算确定。
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| 关 键 词： | 压敏电阻 防雷 寿命 |
| 修稿时间： | 2007-07-23 |
Lightning Protection Discussion on Life of Piezoresistance used in Power System |
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| Yu Huadu. Lightning Protection Discussion on Life of Piezoresistance used in Power System[J]. Railway Signalling & Communication Engineering, 2007, 4(5): 10-12 |
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| Authors: | Yu Huadu |
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| Abstract: | After the piezoresistance used for lightning protection is impacted by the thunderbolt,the indexes of its on-state current and on-state voltage fall down exponentially. The anthor suggests that the useful life and change cycle of the piezorosistance which is used in the power system for lightning protection should be determined by counting the amount of the local thunderstorm days. |
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| Keywords: | Piezoresistance lightning protection and life |
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