[KongchangAI]
Unverified85% confidenceSolutionTime unknown

家庭电路故障排查标准路径:数显验电笔确认有无电→万用表测各段电压定位断点→钳形表测电流判断是否过载短路→绝缘胶带/端子修复→通电前再次验电确认

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