What to do if the wall socket does not have a ground wire, does the home wall socket have a ground w

In the old house, the wall socket box is metal, which belongs to the direct grounding, although there is no ground wire, but the ground wire can be connected to the wall metal box. In today's buildings, the box of the wall socket is plastic, and there will be a ground wire. At the same time, in the power box of the house, there will be a ground wire, if a wall socket in the room does not have a ground wire, and the box inside is plastic, you can only find the other wall sockets in the room There will be a bottom line, and then find a way to connect the ground wire.

There are also grounding wires for domestic ones

Thread is a big guarantee to protect personal safety. There are many forms of household wall sockets, there are two-hole sockets, three-hole sockets, and multi-hole sockets, three-hole sockets are also called three-pole sockets, in addition to the live wire zero wire, there is one more wire, so the three-hole sockets should be grounded.

But whether the three-hole socket is really connected to the ground wire, it depends on whether the original house is installed with a ground wire, the houses before the 90s generally install the ground wire, and the buildings after the 90s require the installation of the ground wire.

Classification 1, work grounding.

The working grounding is to bury the metal conductor copper block in the soil, and then lead a point of it out of the ground with a wire, and use it to complete the circuit to make the equipment meet the performance requirements of the grounding wire. The ground wire requires a ground resistance of 4. For example, in the sixties and seventies, every household in the countryside used a ground wire for broadcasting, and it was necessary to get wet with water frequently at the grounding point.

2. Safety grounding.

The electrical regulations stipulate that the protective grounding resistance should be 4, and the resistance of the human body is generally greater than 2000, according to Ohm's law, the current through the human body when the insulation is damaged is only 1 500 of the total current, and then play a protective role. The metal shells of household appliances and office equipment are equipped with grounding wires, if their insulation is damaged and the shells are electrified, the current will leak into the ground along the installed grounding wires to achieve the purpose of safety, otherwise it will cause harm to personal safety.

There are many forms of household wall sockets, there are two-hole sockets, three-hole sockets, and multi-hole sockets, three-hole sockets are also called three-pole sockets, in addition to the zero line of the live wire, there is one more wire, so the three-hole sockets should be grounded, but the three-hole sockets are not really connected to the ground, it depends on whether the original house is installed with a ground wire, the houses before the 90s generally install the ground wire, and the buildings after the 90s require the installation of the ground wire, otherwise the acceptance will be unqualified.

Friends, household sockets generally have zero wire, ground wire, fire wire three connecting piles, this ground wire is generally in the wet underground digging a pit, and then with scrap iron or other metals buried in the ground, the grounding resistance value is not less than 2 ohms, so that the grounding electrode can be connected to the grounding pile of the household socket with a wire, so that it is OK.

Summary. Dear, I am happy to answer for you: how to remedy the socket without a ground wire at home, you can pull a wire on the protective grounding of the socket, connected to the heating pipe, water pipe, if it is a bungalow or out of the room to install the ground wire is convenient, you can choose a more humid place on the ground, smash an iron drill into the ground as a ground wire.

If your RCB is sensitive, but there is no ground wire, when there is a leakage current flowing through the human body, the RCB will act and there will be no personal injury. All in all, as long as the leakage circuit breaker is okay, it is safe without a ground wire, so you can rest assured, but you still have to deal with it in time.

Dear, I am happy to answer for you: how to remedy the socket without a ground wire at home, you can pull a wire on the protective grounding of the socket, connected to the heating pipe, water pipe, if it is a bungalow or out of the room to install the ground wire is convenient, you can choose a more humid place on the ground, smash an iron drill into the ground as a ground wire. If your RCB is sensitive, but there is no ground wire, when there is a leakage current flowing through the human body, the RCB will act and there will be no personal injury.

All in all, as long as the leakage circuit breaker is okay, it is safe without a ground wire, so you can rest assured, but you still have to deal with it in time.

It's not okay yet. There is no ground wire in the socket at home, you can pull a wire on the protective grounding of the socket, connect it to the heating pipe, tap water pipe, if it is a bungalow or out of the room to install the ground wire, you can choose a humid place on the ground, smash an iron drill into the ground as a ground wire. If your RCB is sensitive, but there is no ground wire, when there is a leakage current flowing through the human body, the RCB will act and there will be no personal injury.

All in all, as long as the leakage circuit breaker is okay, it is safe without a ground wire, so you can rest assured, but you still have to deal with it in time.

The main thing is that there is no ground wire for the table test for property acceptance, how can I call the table test with a ground wire.

The method of determining whether there is a grounding wire in the circuit at home: 1. Look at the incoming wire of the meter box: if it is three wires through the pipe into the switch box, one of which is a yellow and green line, that is, the grounding wire introduced into the home, it is not connected under the circuit breaker or the gate knife, or under the fuse, but directly from the grounding pile or grounding row into your switch box.

2. Measure with a multimeter: use a multimeter to measure the upper hole and right hole of the three-hole socket, if the meter shows a voltage of 220V, it means that the home is connected to the ground wire. If the voltage is 0, then your home does not have a ground wire.

3. Test with an electric pen: find out the live wire of the socket, and then use a section of wire to short the neutral wire of your socket and the protective grounding wire of the socket, and jump the leakage switch, which is protected and grounded. Recommendations:

Find a professional electrician to go to the house to see if the circuit has a grounding wire, safety first. Concept: Ground Wire:

It is a line that directly connects to the earth, which can also be called a safe return route, and when it is dangerous, it directly transfers the high pressure to the earth, which is considered a lifeline.

Summary. Dear, there is no ground wire in the socket at home, and it can be nailed directly into the wall when it is grounded.

The socket at home does not have a ground wire, can it be nailed directly into the wall as grounding?

Dear, there is no ground wire in the socket at home, and it can be nailed directly into the wall when it is grounded.

The wall and the grounding body are still different, the grounding body has strict standards, and there is a grounding resistance control. Walls can be more or less resistive – walls with steel are slightly less resistant (and of course there are other factors that have a smaller impact). So this grounding is unstable.

Sockets, also known as power sockets, switch sockets. A socket is a socket through which one or more circuits can be plugged in, through which various wiring can be inserted.

If it has been renovated, all the sockets are not arranged with grounding wires, and now it is no longer possible to install grounding wires, and the power switch of the incoming wire can be remedied by using the switch of leakage protection function.

It can be applied to the ground terminal with a wire.

When the line sequence is correct and the ground wire is missing, the left jack of the socket is the neutral line N, and the right jack is the live wire L.

Since there is no ground wire, LED1 and LED2 are equivalent to passing through two diodes in reverse series, and are connected to the neutral line N and the live wire L, at this time, the positive and negative half cycles of the alternating current can not be turned on, so LED1 and LED2 have no current and do not emit light.

The function of the ground wire is to connect the metal shell of the electrical appliance with the ground, when the metal shell of the electrical appliance is electrified, the current will be introduced into the ground through the ground wire, so as to reduce the accident of electric shock of the human body and protect personal safety. Therefore, if there is a lack of ground wire in the home circuit, there will be great potential safety hazards in electricity.

In recent years, home improvement has used leakage circuit breakers, and the correct configuration is to install a two-pole total circuit breaker into the home line, and the total circuit breaker is two branches, one is for lighting, the other is for the socket, and the lighting does not need to be equipped with a leakage circuit breaker, and the socket should be reasonably configured with a leakage circuit breaker, (home improvement action current 30mA).If you install a leakage circuit breaker and connect the ground wire, it is good for personal safety, but it may increase the probability of the circuit breaker action, that is, the leakage current is not because of the protective action of the human body.

If the leakage circuit breaker is sensitive, but there is no ground wire, when there is leakage current flowing through the human body, the leakage circuit breaker will act and there will be no personal injury. In a word, as long as the leakage circuit breaker is fine, it is safe to have no ground wire, and it is not because of the ground wire. (From a professional point of view, the access of the ground wire is also stricter, otherwise there will be a leakage potential of others into their own home, which is more unnecessary.)

If the floor is insulated, be careful not to come into contact with other conductors when using electrical equipment. There is no problem without a ground wire.

You can use the wire to ground the iron sheet of your electrical appliance and look at the landlord to adopt.

You can just pick up a ground wire in your house.

Dear, hello, I am happy to answer for you, what to do if there is no ground wire in the socket Answer: There is no ground wire in the socket The reference method is as follows: 1. If the decoration has been completed, but the indoor socket is not connected to the ground wire, it is impossible to rework and install the ground wire when the simple dismantling is defeated, and the only remedy is to use the power switch of the incoming wire with a switch with leakage protection function.

2. If the socket is found to be grounded without a grounding wire during the decoration process, it must be reworked by the electrician, first dig a pit at a distance of meters from the wall, the depth is about meters, the length should be greater than 6 meters, and the width is subject to putting in an angle steel. Then put the angle steel vertically into the pit, ensuring that the distance between every two angles is 3 meters, and the distance between the upper part of the angle steel and the ground is 1 meter. The flat steel and the angle steel are welded together, so that they present a "mountain" shape with the mouth facing downward, and the flat steel in the middle of the "mountain" is drilled into the trembling wire, and introduced into the ground row in the household distribution box, and the remedial measures are all completed.

Circuit installation is very important, if the project is not done well, the impact on future life is very large, and even will pose a threat to life safety, we are very important to buy high-quality materials when decorating, we must let the experienced electrician master install, determine the location of the power switch, electrical appliances, on-site disclosure, after the installation to do a good job of acceptance, to ensure the quality of the project.