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请问接地装置有哪几种？

浏览：40次 | 提问时间： 07-10 05:29
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3个答案
给过我 07-10 05:30

工作接地，保护接地，保护接地分为电源保护接地，计算机保护接地，通讯保护接地。建筑物防雷保护接地。
各种接地装置可以混合使用一个接地装置为综合接地装置，要求接地电阻为1欧姆。
如果独立的接地装置，要求防雷接地电阻不大于10欧姆，工作接地及电源保护接地不大于4欧姆，计算机及通信接地保护不大于1欧姆。但分开很难，一般是采用综合接地装置。
希望对你有帮助

在街巷荫塔下的偶遇 07-10 05:38

你好，接地装置的方法：
(1)保护接地，指正常情况下将电气设备外壳及不带电金属部分的接地。如发电机、变压器等电气设备外壳的接地。
(2)工作接地，指电力、通讯等系统中利用大地做导线或为保证其正常运行所进行的接地。如供电系统中的三相四线制中的地线，某些变压器中性点接地等。
(3)防雷接地，指过电压保护装置或设备的金属结构的接地。如避雷器的接地、避雷针构架的接地等，也称过电压保护接地。

僵尸片很恐怖 07-10 05:47

接地装置的种类有：
(1)工作接地。工作接地是在电力系统中，店里设备为运行需要而设置的接地。
(2)保护接地。保护接地是将电力设备的金属外壳与接地装置连接。以防设备绝缘损坏而使外壳带电危及人身安全和设备的安全而设置。
(3)防雷接地。防雷接地是为雷电保护装置向大地泄放电流而放置接地。
(4)防静电接地。防静电接地是为放置静电对易燃油、天然气储罐和管道等产生危险作用而设置的接地，用来释放静电电荷。

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