1. Poor device
If the terminal posts of the leakage protector are not firmly connected during the installation, it will often lead to the heating and oxidation of the terminal post for a long time, so that the wire insulation layer will be scorched, and accompanied by the smell of ignition and rubber and plastic burning, forming an undervoltage of the line and tripping the leakage protector.
2. There is a problem with the leakage protector itself
When users buy leakage protectors, they should try to buy them from reputable designated manufacturers or stores, and don't try to buy "three no" leakage protectors from some self-employed people at a low price, which is often a big loss due to a small loss.
3. The leakage protector does not match the load
With the increasing popularity of household appliances, the load current of many families has far exceeded the rated current of the leakage protector on the line, resulting in the leakage protector tripping. This situation generally occurs in the use of high-power household appliances such as air conditioners and electric kettles, and the problem can be easily solved by simply replacing a matching leakage protector from scratch.
4. Leakage and short circuit of load or line
If the leakage protector is tripped due to leakage or short circuit of the load such as household appliances, you only need to unplug the faulty household appliances to send power from the beginning; If the line is leaking or short-circuited, it is relatively difficult to solve some simple problems first, so that some lines can be temporarily restored and transmitted. The specific method is: when the leakage protector trips, first disconnect each branch, and then send the leakage protector, when a certain shunt is sent to the leakage protector that trips, then it can be judged that there is something wrong with the branch. By disconnecting this branch, the other branches will be able to restore electricity. At this moment, if you find that the socket or light fixture in a room is out of power, the problem is often in this area.
5. The incoming voltage of the power supply is too high
This is a rare, but very risky situation, and usually occurs in residential buildings with three-phase and four-wire power supply (which is now ubiquitous in residential buildings). Due to the three-phase imbalance or the misery of small animals such as mice, the voltage drift occurs in the total neutral line of the power supply, and the phase voltage can change from 220V to 380V, which will trip the leakage protector. To identify this problem, one is to use an electric pen to test whether the incoming line is electrified; The second is to see if the neighbors also have tripping phenomenon, if so, most of them belong to this problem; The third is to use a multimeter to measure the voltage of the incoming line. At this moment, please do not forcibly close the leakage protector switch, otherwise it is easy to cause the household appliances to burn out, and in severe cases, it will also lead to adverse consequences such as fire. In addition, lightning strikes on the incoming line will also cause overvoltage to cause the leakage protector to trip.
In short, once the household leakage protector trips, the guidelines should be followed when viewing. First of all, check whether the device is outstanding, then check whether the incoming voltage of the power supply is high (look at the neighbors) and whether there is any problem with the leakage protector itself (remove the outgoing line for power transmission), and then see whether the leakage protector can accept the load of the home appliance, and finally check whether the load, line leakage or short circuit. If you really can't find out the reason, don't move blindly, and ask a professional to investigate. Otherwise, messing up the line is not conducive to eliminating faults.
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