目录目录............................................................................................................................................................1一、现代雷电防护原理................................................................................................................................3（一）雷电灾害概述...............................................................................................................................3（二）雷电袭击途径分析.......................................................................................................................4（三）雷电及过电压的基本防护方法...................................................................................................5（四）信息系统易受雷击原因...............................................................................................................7二、现场勘测报告........................................................................................................................................7（1）地理环境.........................................................................................................................................7（2）气候及雷电活动情况.....................................................................................................................7（3）地质情况.........................................................................................................................................8（4）防雷勘测情况.................................................................................................................................8三、设计原则和指导思想............................................................................................................................8四、设计依据................................................................................................................................................9五、防雷设计方案......................................................................................................................................10（一）防雷等级确定.............................................................................................................................10（二）设计概述.....................................................................................................................................10（三）低压配电系统防雷.....................................................................................................................111、第一级电源浪涌保护..................................................................................................................112、第二级电源浪涌保护..................................................................................................................123、第三级电源浪涌保护..................................................................................................................13（五）网络系统防雷.............................................................................................................................14（六）监控系统防雷.............................................................................................................................14（七）消防系统防雷............................................................................................................
