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避雷针接地线安装方法谁知道？

避雷针接地线安装方法谁知道？

浏览：68次 | 提问时间： 07-03 04:15

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沉世 07-03 04:15

防雷装置包括：①接闪器②引下线③断接卡④地母线⑤接地体.①②③④⑤必须保证通畅的电气连接.
避雷针(有不锈针尖的)可以作接闪器,但是它的安装高度及保护范围应计算确定；12mm的钢筋可作引下线,但应不生锈(镀锌)；没有断接卡就不能测试接地电阻是否符合要求；‘钢筋打入地下’做接地体就离谱太远了!

劳资不爱别强求 07-03 04:24

1、雷针的保护区避雷针的保护区是避雷针下面45~60°伞形区。避雷针架设越高，保护区的范围就越大。安装避雷针必须注意它与受保护物体距离应大于5m,因为避雷针及下引线受雷电感应能击穿2~3m的空气。
2、杆避雷针制造和安装避雷针由接闪器(即避雷针的针尖)、支杆、接地引线和接地体四部分组成。
3、针尖用粗一点的铜丝、铁丝做成，用粗铁棍更好；支杆可用木杆，也可用金属杆；接地引线可用粗一点的铁丝或其它带状金属条，上端与针尖相连，下端与埋入地下的接地体相连，连接必须用焊接。接地引线必须用整根线，并选择最矩离接到接地体上，尽量不弯曲。接地体是埋在地下的金属物件，通常用钢管、角钢、钢针等做成，长度应取1 ~ 2m。埋没深度不小于2m。避雷针接地体不能与其它接地体混用，必须独立接地。
希望我的回答能帮到您

眼睛里进柠檬了 07-03 04:32

在雷雨天气，高楼上空出现带电云层时，迅雷针和高楼顶部都被感应上大量电荷，由于避雷针针头是尖的，而静电感应时，导体尖端总是聚集了最多的电荷.这样，避雷针就聚集了大部分电荷.避雷针又与这些带电云层形成了一个电容器，由于它较尖，即这个电容器的两极板正对面积很小，电容也就很小，也就是说它所能容纳的电荷很少.而它又聚集了大部分电荷，所以，当云层上电荷较多时，避雷针与云层之间的空气就很容易被击穿，成为导体.这样，带电云层与避雷针形成通路，而避雷针又是接地的.避雷针就可以把云层上的电荷导人大地，使其不对高层建筑构成危险，保证了它的安全.

太执着 07-03 04:40

你好，避雷针接地线安装方法一般是连接到钢筋就好了，自动能引到地下，在两头的中间位置安装两根高1.2米左右的避雷针。希望对你有帮助。

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