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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
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防雷装置有避雷针、避雷网、避雷带、接闪器、引下线、接地等装置。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。希望我的回答能帮助到你。
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。
接地装置是防雷装置的重要组成部分。接地装置向大地泄放雷电流,限制防雷装置对地电压不致过高。除独立避雷针外,在接地电阻满足要求的前提下,防雷接地装置可以和其他接地装置共用。
1、接地装置是指埋设在地下的接地电极与由该接地电极到设备之间的连接导线的总称。这个是打入地基以下土里面的,一般是用金属导体。
2、避雷引下线是将避雷针接收的雷电流引向接地装置的导体,也就是那个白铁。
3、建筑中的等电位联结,是将建筑物中各电气装置和其它装置外露的金属及可导电部分与人工或自然接地体用导体连接起来,以减少电位差。等电位联结有总等电位联结、局部等电位联结和辅助等电位联结。就是在墙上离地大概50CM有个等电位盒,然后建筑外金属窗安装时又有个铜排线连接到那里。