在许多使用单相水泵的农户中，经常听到这样的反映，当他们将单相水泵的电源插头插入家用照明多用灯头插座内后，往往会造成总保护跳闸。这是什么原因呢？这是因为，用户将插头插在多用灯头内，把开关误接为零线，相线直接进入单相水泵，使水泵经常处于带电状态。又因水泵长时 In many households using single-phase pumps, it is often heard that when they plug a single-phase water pump into a domestic multi-purpose socket, they often cause total protection trips. What is the reason? This is because the user plug the plug in the multi-lamp, the switch is mistakenly connected to the zero line, phase directly into the single-phase pump, the pump is often in a charged state. Because of the pump for a long time