电子系统易受雷击和瞬时过电压的损坏。马利·泰勒在此论述什么是瞬变现象，它会造成什么危害以及怎样防止瞬变现象。　　雷击对建筑物内电子系统的威胁比对建筑物本身的威胁大得多。其主要原因有二条：一、根据定义，直击雷必须是击中建筑物的雷，而远至１公里之外的雷击却能 Electronic systems are vulnerable to lightning strikes and transient overvoltages. Mali Taylor discusses what is a transient, what harm it can cause, and how to prevent transients. Lightning strikes pose a much greater threat to the electronic systems inside buildings than the buildings themselves. There are two main reasons for this: First, by definition, direct lightning must be the thunder that hits buildings, and lightning strikes as far as 1 km away can