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海门区回收内存颗粒免费评估聚东电子科技面向全国高价收购电子料、全国各地均有驻点，24小时随时上门验货，现款结算，私密处理。我们的价格包你满意，随时恭候你的咨询（我们不废话，就是高价） 
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漏电保护器在现在家庭电路应用是比较常见的，前几天就有朋友打电话问，家里的漏电保护器跳闸把零火线对调后就不跳闸了怎么回事呢？漏电保护器原理：理论上正常电路中火线和零线的电流差为零。漏电保护器就是利用电流差为零这个原理制成的，当经过漏电保护器零火线电流相等时电磁检测为零漏电保护器不动作，当零火线电流不等时电磁检测到不平衡电流（大于30毫安）经放大器放处理操作执行机构脱扣。漏电保护器跳闸，对调零火线后为什么不跳闸：漏电保护装置在零火线电流出现差值（家用一般是大于30毫安）就会跳闸。