The leakage circuit breaker at home always trips, and it always trips

Most of the old husband's houses have such problems. The line is aging, the power of the cutout switch is too small, etc. . . I don't think you can solve your problem, so it is recommended to find a boy who understands electricity to help you change a high-power cutout.

There is also a leakage circuit breaker It is recommended not to use it, as long as there is a fuse air switch.

Addendum: Actually, that is the air switch. You just didn't make it clear.

The reason is that the first total switching power is too small. There are two solutions, one is to change a larger switch (more than 40A), and the other is very earthy, that is, directly use a thick copper wire to dock the inlet and outlet of the switch is equivalent to a short circuit, and pay attention to safety when connecting (the switch is electrified). Since there are several sub-switches, it is still safe for home appliances.

Be careful not to do it yourself. Because you girls have very little experience in this area. Find a guy to do what I say.

Remember. Good luck!

In fact, the leakage switch also has a function, it will also trip like an air switch when it is overloaded. Looking at what you're saying, I'm sure that's the reason. Since you are a girl, replace it, and it is recommended to change it to a more powerful air switch.

If you only jump the main gate and do not jump and open the switch, it is generally the poor contact between the dynamic and static contacts in the main gate, because there is a thermal protection device inside, so it will trip when it is heated for a period of time when there is a lot of electricity. What you wrote is a 32a empty open new one with the same model. Feel a little hot on the shell with your hand to make sure.

In summer, the electricity consumption is relatively large, if the possibility of leakage of household appliances is ruled out. In general, there are two possibilities: one leakage protection switch is small, (the simplest algorithm, multiply the power of all household appliances by 2, and then multiply by 4, which is the size of the number on the leakage switch.)

For example, 16a or 32a and the like) two weather reasons and then add wire insulation problems, (insufficient insulation) resulting in intermittent tripping. To sum up, if it is convenient, find a professional electrician to see, and then replace it with a leakage that is a little larger than the original leakage. (That's right, roughly 1kw is equal to 2a).

This phenomenon is generally due to water ingress in the threading pipe, which will lead to a complete short circuit or open circuit of the line after a long time.

Check whether the neutral wire and ground wire of the socket are reversed.

Method; Find an electrician, unplug all the electrical appliances on the socket, and check the socket line of the distribution box with a universal meter all the way.

Exclude the short circuit of the line, if it is a short circuit, it should not be able to push the brake; It can also basically eliminate electrical faults.

This means that one of your appliances is leaking. That is, it is bad. You can try to take them down one by one. For example, the probability of possible leakage of water heaters and water dispensers is more than 95%. Give it a try. No problem.

Look at the model should be a domestic Zhengtai or Delixi product, he is not a leakage circuit breaker, is a 2P circuit breaker, the total current of 32A is a little small, it is recommended to match 40A or 50A, and it is best to have a leakage protection function, after all, you have an electric water heater, electric kettle and other electric heating appliances, with leakage protection, after all, it is safer, according to what you said, it may be that the quality of this circuit breaker is not very good, according to the general speaking, when your air conditioner and electric water heater are turned on separately, The total power of each is not too much more than 16A * 220V = 3520W, the circuit breaker of 32A can theoretically load 7040W electrical appliances, if it is just to turn on an air conditioner or electric water heater alone, it will jump out, 100% is the quality of the circuit breaker is not up to par, it is recommended to buy Schneider E9 2P C40A or IC65N 2P C40A, to ensure that the problem is solved, pay attention to safety when changing, because it is a live operation, (the old community, it is estimated that the meter box can not be found, Even if you find it, you won't necessarily be able to figure out which table is yours).

There are three reasons for the old tripping of the electric switch: 1. Caused by overload; 2. Caused by short circuit; 3. Caused by leakage.

caused by overload. In the use of some electrical appliances, for example, the wire is a square lighting wire, but it is used in high-power appliances. The power of the appliance greatly exceeds the load on the wires. At this point, the safety device of the switch is activated, causing a trip.

Caused by short circuits. At the interface where the wires are connected, sometimes they are not connected firmly, or if they become loose after a period of use, which can cause a short circuit. At this time, the safety protection device is opened, and the power is tripped and the power is cut off to prevent fire.

3. Caused by leakage. There will be a leakage protection device for household electricity, and as long as the current difference of the fire zero line exceeds 30 milliamperes, it will touch the safety protection and cause tripping.

The old trip must be a fault in the outgoing circuit of the home, which touches the protection device. Therefore, it is important to find a professional to find out the cause and solve it in time to ensure safety.

1. Poor installation.

If the lead wire of each pile head is not firmly connected and loosened for a long time, it will cause the pile to heat and oxidize, burn out the outer insulation of the wire, and emit sparks and burnt smell, resulting in undervoltage of the line and air switch action.

2. The leakage switch does not match the load.

The actual electrical load of the household is greater than the rated current of the low-voltage circuit breaker on the line. It generally occurs after the installation or addition of high-power household appliances such as air conditioners and electric water heaters. The matching air switch must be replaced.

3. Leakage and short circuit of electrical appliances or lines.

When it is found that the electrical appliances used are leaking, as long as you unplug the electrical appliances with leakage faults, and then close the low-voltage circuit breaker again, you can send electricity. If a leakage or short circuit is found in the line, an electrician must be called to deal with it. After the low-voltage circuit breaker jumps open, first disconnect all the branches, and then close the power transmission one by one.

When a certain circuit is closed, the low-voltage circuit breaker cannot be powered, that is, the shunt is faulty, and this road should be disconnected and other shunts should be closed for power transmission. After the problem of faulty shunting is detected, the power is sent after repair.

4. The incoming voltage of the power supply is too high.

This is very dangerous and generally occurs in residential buildings with three-phase four-wire power supply. At this time, see if both wires are electrified; Second, see if the left and right neighbors also trip; Three, use a multimeter to measure the incoming line voltage. Do not forcibly close the low-voltage circuit breaker, otherwise it will burn out the electrical appliances at least and cause a fire at worst.

5. There is a problem with the quality of the leakage circuit breaker.

Check the quality of the RCB first. One is to check the leakage tripper, generally with the test button to test, when pressing the test button, because of the I1 shunt, so that I1 and I2 are not equal, that is, the phasor sum is not zero, therefore, the leakage circuit breaker should act, requiring the trip sensitive; The second is to check whether the leakage circuit breaker can be closed in the no-load state, if it cannot be closed, the leakage circuit breaker is faulty, can not be used, and should be replaced (self-repair is not recommended).

6. The wiring of the leakage circuit breaker is wrong.

Check whether the phase wire of a certain electrical equipment is connected to the front of the leakage circuit breaker.

The reason why the leakage switch always trips is:Poor installation, in the installation process is not the leakage protector of the terminal post firmly connected, after a long time, resulting in the terminal post heating, oxidation, and even too high current will cause the line to undervoltage, and trip.

If you are greedy for cheap and buy a "three no" leakage protector from the merchant, causing the switch to trip, try to buy it from a reputable brand store.

Leakage protector and load mismatch Nowadays, there are more and more electrical appliances, if the load current of the electrical appliances in the home is greater than the rated current of the leakage protector on the line, it will lead to the tripping of the leakage protector.

There is a short circuit in the line or the capacitance is not large enough. Turn off some electrical appliances that are not in use.

Check that the electrical appliances are leaking.

There are many reasons for this, the first of which is that the short circuit directly hits the metal. Excessive current causes a short circuit. On the other hand, there may be a short circuit between the neutral line and the live wire.

Hall nucleus

Large electrical appliances such as water heaters and air conditioners: For electrical appliances with large power, they must be wired separately when decorating. Otherwise, it will be very easy to trip in later use.

Short circuit of load line: If it is a short circuit of the load line, it will trip at the moment of power on or the moment of opening the empty opening, that is, it will not be powered at all.

Conception. The main task of the traction substation (opening and closing station, partition pavilion) is to supply power to the catenary. In addition to the equipment failure of the traction substation (opening and closing station, partition pavilion) itself (the proportion of this situation is very small), the short-circuit current that causes the "tripping" mainly comes from the catenary.

The catenary is in a state of uninterrupted operation, and the electric locomotive under the catenary is constantly performing the busy Yunzhou Fushu transmission task, as well as the joint coordination of transportation and public works departments. Accidents in any area can affect the catenary and "trip" the circuit breaker.