| 监控安防系统雷电感应 |
| 添加时间：2019/12/31 15:13:18 浏览次数： |
| 监控安防系统雷电感应。电磁感应: 当附近区域有雷击闪络时, 在雷击落地通道周围会产生强大的瞬变电磁场。处在电磁场中的监控设备和传输线路会感应出较大的电动势, 以致损坏、损毁设备。静电感应: 当有带电的雷云出现时, 在雷云下面的建筑物和传输线路上会感应出与雷云相反的束缚电荷。一旦雷云放电后, 束缚电荷迅速扩散, 即引起感应雷击。电磁感应和静电感应引发的雷击现象均称为感应雷, 又称二次雷, 发生的机率大, 据统计, 感应雷击事故约占雷击事故的80% 以上。 Monitor lightning induction of security system. Electromagnetic induction: when there is lightning flashover in the nearby area, a strong transient electromagnetic field will be generated around the lightning landing channel. The monitoring equipment and transmission lines in the electromagnetic field will induce large electromotive force, so as to damage and destroy the equipment. Electrostatic induction: when a charged thundercloud appears, the bound charge opposite to the thundercloud will be induced on the buildings and transmission lines under the thundercloud. Once the thundercloud discharges, the bound charge diffuses rapidly, which leads to induced lightning stroke. The lightning phenomenon caused by electromagnetic induction and electrostatic induction is called induction lightning, also known as secondary lightning, which has a high probability of occurrence. According to statistics, induction lightning accidents account for more than 80% of lightning accidents. |
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