电子设备防感应雷方法研究  

Study of induction lightning protection method for electronic equipments

作　　者：张志敏[1] 刘栋[1] 

机构地区：[1]中国人民解放军91245部队

出　　处：《现代电子技术》2012年第21期192-194,共3页Modern Electronics Technique

摘　　要：现在电子设备场地基本都安装了防雷设施,电子设备对雷电的防范能力有了明显的提高,但现有的防雷设施对于感应雷的全方位防护的能力还很薄弱。通过建立电线电缆的电磁场模型,得出雷电发生时在电缆上感应电压和电流结果,研究出三次放电防感应雷的理论和有效方法,利用三次放电原理电子设备就可以有效地预防感应雷的破坏。该方法成本低,易操作,经过实际条件下的考验,证明是一种行之有效的方法。Nowadays most of the electronic equipment fields have been equipped with hghtning proteetton facilities, and the ability of eleetronic equipments to prevent lightning has been greatly improved. But the albaround protection ability of the existing lightning protection facilities is still weak. By establishing electromagnetic field model of electric circuit and cable, in- ductive voltage across and inductive current through the electric cable can be obtained when thunder and lightning is happening. Finally, the theory and effective lightning protection method of three times discharging is studied out, and the electronic equipments are used which employ three times discharging principle to prevent effectively the damage of inductive thunder. The advantage of this method is low cost and simple operation. Through the praetieal test, this method proves to be effective.

关 键 词：感应雷 屏蔽 接地 全铜编织带 

分 类 号：TN972[电子电信—信号与信息处理] TN98[电子电信—信息与通信工程]