Ask the electrician for a question, it s about the leakage of the line, please ask the electrician p

1. If you want to find out which section of the line has a problem, you can only remove all the sockets that are open and try it one by one.

2. You swap the phase line with the neutral line, which should not be able to solve the problem, and theoretically the jump should still be jumped.

3. Testing method: unplug all electrical appliances and electrical equipment, and measure the insulation resistance with a 500V shake meter. Here's how to find an electrician on-site to assist you.

Because you are now grounding the live wire of the socket circuit in the living room, there must be a ground wire for the socket electricity, you can use this ground wire as a live wire, and cancel the problematic live wire, there will be no big problem.

I am an electrician. That's no problem. About your first question. It is unlikely that there is a problem with the wire itself, it should be that you use electrical appliances. Or an outlet. Switch.

You have an air conditioner plugged into the socket and you don't have it. In addition, you look to see if there is a zero line (n) and whether there is a fire. If so, you change the line of fire (L) on the top.

Hello, first of all, let me state that I am not engaged in electricity, so there is no professional opinion on your first question, as for the second question, I think so, the residential electricity is 50hz 220V alternating current, since it is alternating current, he will not be like direct current must be strictly positive and negative, so I personally think that this is not a big problem.

The air switch generally does not have a reset button, you said press the reset button, push the brake up, I suspect that you are not using an air switch, it should be a leakage switch, if it is a leakage switch, then use two methods to eliminate, 1, plugged in the socket of an electrical appliance has leakage, 2 leakage switch has a problem

Hello Kiss is happy to answer this question for you. How to solve the leakage of <> line:1

The leakage of wires at home should first find out what causes it, and then rectify and solve it in a targeted manner: (1) If it is caused by the aging of the wire, it is necessary to replace the new wire; (2) If it is caused by poor contact of electrical appliances, it is necessary to reinsert or replace the wire box; (3) If it is caused by the wrong connection between the neutral wire and the live wire, you need to find an electrician to replace the live wire connector. The leakage of electrical wires at home should be investigated in time to eliminate the potential safety hazards of household electricity in time.

2.Prevention of leakage: For short-circuit leakage, as long as the insulation of mains lines and related components is strengthened, the number of leakage can be avoided or reduced.

However, due to the inherent nature of high resistance and distributed capacitance in home appliances, it is often not possible to completely eliminate high resistance leakage and capacitive leakage. Therefore, the indirect method is generally used to connect the metal shell of the household appliance to the ground, and the leakage current is discharged, if the short-circuit leakage occurs after the shell is grounded, the current into the ground is very large, and the fuse of the household appliance power supply can be blown out, so as to play a protective role. Therefore, this can effectively protect the three main leakage currents.

However, the grounding must be good, and the leakage current must be unblocked, otherwise the protection function will be lost. In addition, special attention should be paid to the fact that the gas pipe, lightning rod conductor and grounding wire that are easy to cause the first gas pipe can be used as the grounding body, otherwise it will bring greater trouble to push the switch above the leakage protector one by one from left to right, and after all the pushes up, the maintenance personnel need to stand on the insulator, and then connect the three wires to the line below the switch, so that the leakage can be detected.

You're not an electrician, and it's dangerous to do that because you're doing a short circuit test, not a leakage test. The short-circuit test current is infinite, and it can burn all electrical equipment and cause disasters.

Teach you a simple way: after the leakage protector is installed; It is good to use any of the wires in the 2-pin socket to touch the water or heating pipe at home and trip; You can also use any wire on the left or right of the 3-hole socket to touch the wire in the hole in the middle, and the trip is good. However, the minimum leakage current cannot be tested, that is, the safety, the minimum action current of the leakage protector home improvement should be 30mA, and the non-action current should be 15mA; However, it is very dangerous during the test, if you don't know how to use electricity, it is recommended not to do it!

It should be a place where the socket is connected virtually, so it is recommended that you change it.

Hello dear! The reason for the leakage of electrical wiring as soon as the electrical appliance is used: short-circuit leakage:

It refers to the direct connection between the insulating material between the electric phase wire (including the motor and transformer connected to the phase wire) and the shell of the household appliance due to serious aging and damage. High Resistance Leakage: There is insulation resistance between the home appliance housing and the mains phase wire.

Even if the quality of the insulating material is good, it is not absolutely insulated, but the resistance value is very large, so no matter what kind of household appliances, there is usually an insulation performance index to ensure that the leakage of household appliances does not hurt people and items. For example, refrigerators stipulate that the insulation resistance shall not be less than 2mq. In the design, it has been ensured that the insulation resistance is very large, so the leakage current is extremely weak.

Capacitive leakage: There is a certain capacitance between the mains phase wire and the shell of the home appliance, and the AC mains energy leakage caused by this capacitor. Capacitors have lumped properties, such as the distributed capacitance formed by the electric motor riser winding and metal parts such as rotor and stator in washing machines.

Because the capacitance that causes this leakage is not large, it is generally tens to hundreds of microfarads, and the capacitive resistance to 50Hz mains is very large. Because the leakage current is very small, it has no impact on human safety.

Hello, I am happy to answer for you: the first aspect is that a short circuit has occurred, because the shell insulation material of household appliances has been damaged, so that the cavity difference has been used for a long time, and the aging is very serious, which will lead to direct communication, which is prone to leakage. The second reason is the high resistance leakage, the shell of the household Wu Min leather device and the mains will have insulation resistance, but it is not 100% insulated.

The third reason is capacitive leakage, because the mains has a certain capacitance with the household appliance shell. However, the leakage current caused by AC mains through this capacitor is not particularly large.

Hello, glad to answer for you. There are many causes of leakage, which need to be investigated from multiple angles. 1. It may be caused by moisture or water ingress in the insulating part, or in the process of running the electrical equipment in the house, if the moisture in this area is too heavy, the insulated part is easy to get damp or water.

This situation must be dealt with in time to avoid leakage accidents. 2. It may be caused by damage to the cable, which is mainly caused by being squeezed by external force or smashed by machinery during use, which makes the gap or crack on the Li Yu cable and not repaired or replaced in time, resulting in leakage caused by damage to the insulation layer.

Slight leakage = Live Wire (L) Leakage 30mA Current = Earth Leakage Ground Fault = Live Wire (L) Direct Ground.

10% of the total input current of the system 15% =earth fault = short to ground = if the total input current = 2500a x 15% =300a leakage 30mA & Ground short 300A difference = 30000 times 2010-08-20 01:54:19 Supplement:

In fact, do you have a computer, printer, TV, VCD, *** and other electrical appliances, there is no leakage, but the leakage is not less, 1ma 10ma, it feels like an ant bite, if you use a voltmeter to measure, you will feel that sometimes the voltage is as high as DC 300V, it is leakage, orange grip is just the current is too fine, so it is not a short circuit, and it is not a grounding fault.

Leakage & short circuit are all electrical faults, causes: congenital poor design, poor materials, improper use by users, too humid environment, dusty environment, natural disasters and so on. Leakage refers to the circuit wiring of the wire or circuit board that should be insulated, there is a situation of conduction, usually not completely conduction, and there is a resistance value between the wires, which is mostly caused by dust, moisture and oil stains.

Short circuit is more serious than the above leakage, should be insulated wire or circuit board is completely on, the resistance is very strong rubber bottom or even close to zero resistance, this situation is mostly natural disaster damage, snake insects and ants damage, improper use and made. Fortunately, the electrical appliance has a fuse for short-circuit, overload and power disconnection protection. Electrical short-circuits are usually more harmful, and it is not so easy to repair, and parts are usually replaced.

Leakage means that the high potential of the power supply comes into contact with the exterior of the electrical appliance or a non-insulated place, which will cause electric shock to the personnel operating the electrical appliance. Short circuit is the power supply**, the load is abnormal, the current increases greatly, exceeds the wire load, and causes heat or even burning, resulting in fire hazards.

If the line leakage or short circuit, use a multimeter to measure the circuit current, the leakage current is small, and the short-circuit current is very large.

If the circuit leaks or short-circuits, the security device will trip.

Determine whether it is a leakage trip or a short circuit trip, and measure the current on the circuit.

Whether it is a leakage trip or a short circuit trip, the front shirt cannot send power.