GB50057-2010 建筑物防雷设计规范(6)
时间:2025-07-10
时间:2025-07-10
目次
1总则............................................................................................................................................12术语..........................................................................................................................................2
3建筑物的防雷分类......................................................................................................................94建筑物的防雷措施.....................................................................................................................11
4.1基本规定..........................................................................................................................11
4.2第一类防雷建筑物的防雷措施.....................................................................................12
4.3第二类防雷建筑物的防雷措施......................................................................................22
4.4第三类防雷建筑物的防雷措施......................................................................................30
4.5其他防雷措施..................................................................................................................35
5防雷装置.....................................................................................................................................39
5.1防雷装置使用的材料.....................................................................................................39
5.2接闪器..............................................................................................................................40
5.3引下线..............................................................................................................................44
5.4接地装置.........................................................................................................................45
6防雷击电磁脉冲.........................................................................................................................48
6.1基本规定..........................................................................................................................48
6.2防雷区和防雷击电磁脉冲.............................................................................................48
附录A建筑物年预计雷击次数....................................................................................................66
附录B建筑物易受雷击的部位..................................................................................................69附录C接地装置冲击接地电阻与...............................................................................................71
附录D滚球法确定接闪器的保护范围(略)................................................................................73
附录E分流系数kc.....................................................................................................................73附录F雷电流................................................................................................................................75
附录G环路中感应电压和电流的计算.......................................................................................78
附录H电缆从户外进入户内的屏蔽层截面积...........................................................................81附录J电涌保护器.........................................................................................................................83
J.1用于电气系统的电涌保护器.........................................................................................83
J.2用于电子系统的电涌保护器.........................................................................................88
…… 此处隐藏:1408字,全部文档内容请下载后查看。喜欢就下载吧 ……下一篇:百家姓读音