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【多选题】
雷电对电子设备损害的途径有( )A.
进出大楼或机房的电源线和通信线等在大楼外受直击雷或感应雷而加载的雷电压及过电流沿线窜入，入侵电子设备。
B.
直击雷经过接闪器(如避雷针、避雷带、避雷网等)而直放入地，导致地网地电位上升。高电压由设备接地线引入电子设备造成地电位反击。
C.
雷电流沿引下线入地时，在引下线周围产生磁场，引下线周围的各种金属管(线)上经感应而产生过电压
D.
雷电经过建筑墙体进入电气设备
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