接地問題 - 3C
By Barb Cronin
at 2021-09-04T05:10
at 2021-09-04T05:10
Table of Contents
先說為何漏電
PSU裡面都會有顆Y電容連到外殼上做接地,目的是降低干擾
但如果插座確實沒接地人碰到就會被電
https://pic.pimg.tw/wolflsi/1627037198-2999533472-g.jpg [1]
跟水火線接反或PSU品質無關
至於接地的問題比較麻煩
如果你要教科書式的接地可能要看當初建商的良心了
總之你打開開關箱看應該會有兩條像這樣的銅排
http://4.bp.blogspot.com/-v1ZvI03Keek/TcMj6JV0k1I/AAAAAAAABy4/l9Jom2Kj-uM/s1600/DSC09223.jpg
[2]
一條白色是中性線銅排;另一條綠色就是地線銅排了
基本上插座的地線連上去就行了,但是呢,這條地線有沒有確實接地你也不知道(所以才說看建商良
心)
同時也會看到兩種線是短接的,這部分就參考水電爸爸的說法
N-G短接算是實務需求(?
https://youtu.be/-MAEjMbmadw
另外請水電來如果只是加條地線他可能不想接這種案,房子很老的話就順便電線抽換吧
這樣應該就會接了
參考來源
https://www.fox-saying.com/blog/post/47822011
http://blog.cckai.net/2011/05/blog-post_8653.html
--
PSU裡面都會有顆Y電容連到外殼上做接地,目的是降低干擾
但如果插座確實沒接地人碰到就會被電
https://pic.pimg.tw/wolflsi/1627037198-2999533472-g.jpg [1]
跟水火線接反或PSU品質無關
至於接地的問題比較麻煩
如果你要教科書式的接地可能要看當初建商的良心了
總之你打開開關箱看應該會有兩條像這樣的銅排
http://4.bp.blogspot.com/-v1ZvI03Keek/TcMj6JV0k1I/AAAAAAAABy4/l9Jom2Kj-uM/s1600/DSC09223.jpg
[2]
一條白色是中性線銅排;另一條綠色就是地線銅排了
基本上插座的地線連上去就行了,但是呢,這條地線有沒有確實接地你也不知道(所以才說看建商良
心)
同時也會看到兩種線是短接的,這部分就參考水電爸爸的說法
N-G短接算是實務需求(?
https://youtu.be/-MAEjMbmadw
另外請水電來如果只是加條地線他可能不想接這種案,房子很老的話就順便電線抽換吧
這樣應該就會接了
參考來源
https://www.fox-saying.com/blog/post/47822011
http://blog.cckai.net/2011/05/blog-post_8653.html
--
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3C
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