摘要
应用雷电监测网资料对雷电直接击于建筑物或击于建筑物附近所产生的空间磁场强度进行估算，得出在引下线周围1--5m范围磁场强度衰减值，并估算出电子信息系统机房应加装的屏蔽网格宽度。
The magnetic intensity caused by direct lightning stroke on buildings or neighbors is estimated according to data from the lightning detection network, thus obtaining the attenuation value of magnetic intensity within a range of 1 to 5m around down-conductor system and estimating the width of a shielding grid installed on an electronic information system room.
出处
《建筑电气》
2014年第6期34-38,共5页
Building Electricity
关键词
磁场分布
安全空间
屏蔽网格宽度
雷电流幅值
分流系数
引下线
屏蔽系数
防雷设计
magnetic field distribution
security space
width of shielding grid
amplitude of lightning current
shunt coefficient
down-conductor system
shielding coefficient
design of protection against lightning
