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枫下家园 / 家用电器 / 请教一下各位大拿，家里的电路，有一路经常跳闸，功率绝对没有超载。跳闸的时候，多数是接了一台电脑的电源。不知道是什么原因。
-doji(黑胶疯);
2017-12-3
(#11219158@0)
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先检测电流是多大，一台电脑不会跳闸的。
-hunhunhunhun(不知道);
2017-12-3
(#11219174@0)
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怎么测？钳表？
-piston(jim);
2017-12-3
(#11219251@0)
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肯定不是过载。我怀疑是这条线路上的GFCI 插座和circuit breaker（也有GFCI 保护），互相之间因为接地回路有干扰，也还是无从下手。
-doji(黑胶疯);
2017-12-3
(#11219424@0)
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Is this circuit AFCI protected (not GFCI)? If so,it is normal. AFCI breaker is very sensitive. That power supply must have a low level of leak. All you can do is change the power supply of that computer. Or change AFCI breaker to regular one. I hate AFCI breaker too since some of my tools keep tripping it which is super annoying.
-jeffrey815(Smartiecat);
2017-12-3
{282}
(#11219428@0)
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专家！是AFCI protector, 用的是Sqare D 的这个型号。
-doji(黑胶疯);
2017-12-3
(#11219431@0)
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So that power supply likely has a lower level of leakage which cause the breaker to trip.
-jeffrey815(Smartiecat);
2017-12-3
(#11219438@0)
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不太清楚。这个是一台Lenovo Thinkpad laptop，质量应该是没得说的。通常是电脑，加上一个小电饭煲同时工作的时候，偶尔会跳闸。reset 之后，又一切正常，然后就又会随机的跳闸。
-doji(黑胶疯);
2017-12-3
(#11219450@0)
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漏电应该是GFCI；短路打火才会引起AFCI。
-hunhunhunhun(不知道);
2017-12-3
(#11219494@0)
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I can't remember when but in past few years electrical code requires "combination" arc fault breaker which detects low-energy series arcing, not only short circuit. These breakers are very sensitive.
-jeffrey815(Smartiecat);
2017-12-3
(#11219516@0)
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Since 2014 , the electric code changed.
-doji(黑胶疯);
2017-12-3
(#11219748@0)
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It is not dangerous. My Milwaukee mitre saw is also top of the line and very reputable but it just trips the breaker all the time. I tested on 3 different breakers, all the same, but it works on regular breaker without AFCI protection.
-jeffrey815(Smartiecat);
2017-12-3
(#11219518@0)
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涨知识
-piston(jim);
2017-12-3
(#11219456@0)