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请问什么是避雷装置

浏览：58次 | 提问时间： 07-06 08:16
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3个答案
Manjusaka凄美 07-06 08:17

雷分为直击雷和感应雷。
直击雷就是户外雷电直接打到屋顶或者树上的雷。为避免这种雷要给屋顶加装避雷针。
感应雷就是通过户外雷电带有的强电流，把周围环境变成一个强磁场，所以信号，电缆，视频等信号都会受到雷击，所以这就要给用户主进线加避雷器，为了更好的保护设备安全还可以用专业的避雷插座。

柔情似水 07-06 08:26

避雷带和避雷针一样都属于是接闪器的一种类型,避雷带一般是水平或倾斜敷设的(根据屋面的倾斜度而定)，至少有两个地方(首尾两端)和引下线相连接，一般是明设，但也可以暗敷在屋顶的混凝土或瓦片的下面。沿屋顶周边明设或暗敷布置一圈，并最少两处与引下线连接的导线,跟避雷针一个道理，是水平敷设的，现在国标里面已改名为“接闪带”。

盗心强盗 07-06 08:34

防雷装置是指接闪器、引下线、接地装置、电涌保护器(SPD)及其他连接导体的总和。
一般将建筑物的防雷装置分为两大类——外部防雷装置和内部防雷装置。外部防雷装置由接闪器、引下线和接地装置组成，即传统的防雷装置。内部防雷装置主要用来减小建筑物内部的雷电流及其电磁效应，如采用电磁屏蔽、等电位连接和装设电涌保护器(SPD)等措施，防止雷击电磁脉冲可能造成的危害。
希望我的回答可以帮到你。

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