Why is the household electricity not grounded?

Household electricity must be grounded. The location you find is not grounded, there should be no reliable ground wire to connect, and because of the cost savings, the ground wire is not grounded.

It can be said that this is very dangerous, do not mind not connecting the bottom line, even in the countryside, as long as the electricity is used, it must be grounded.

Why is the household electricity not grounded? I don't think this problem exists, because even if it is household electricity, he will pay attention to safety, but also to the grounding wire, the bottom line is the zero line, it can help you conduct electricity, prevent the possibility of electric shock and fire, if you are safer, so household electricity will also write the bottom line, I hope it can help you.

Many household appliances are not grounded.

The reason is that the power of household appliances is relatively small, and there will be no particularly dangerous impact if there is no grounding wire, but in general, large appliances such as air conditioners and washing machines need grounding wires.

Even if the general family does not have a grounding wire, a leakage protector will be installed, which can also play a role in preventing leakage. In the case of no grounding wire, the electrical leakage occurs, and when the person touches the electrical appliance, the current will flow into the earth through the human body, and the leakage protector will also trip to protect the safety of the person. The popular point is to install a leakage protector in the circuit connected to the wire to ensure that the electrical appliance is not charged after leakage, and the leakage protector is installed in the circuit without a grounding wire to ensure that people do not receive harm after touching the electrical appliance that leaks.

Household electricity needs a grounding wire, not an ungrounded wire, for example, the sockets we use at home need a grounding wire, so that it is safer.

Many household electricity does not have a grounding wire, as long as the installation of leakage protection switch can be, the same can play a role in preventing electric shock, grounding protection in the electrical circuit, once the electrical leakage, all three kinds of plug electrical appliances are required to be grounded, at this time the leakage current will flow directly through the grounding wire into the ground, instant leakage protection function, tripping power.

Now household electricity is generally grounded wire, grounding wire will be safer to use, can prevent part of the electric shock, so in the decoration of the best line to connect the line to the ground, the general electrician understands, the connection to the ground wire is also very easy, the general building also has a special grounding wire, connect on it.

The reason why household electricity is not grounded is entirely because the voltage of your household electricity will be relatively small, so there is no need to connect the grounding wire.

It is dangerous to connect the ground wire at home, once the leakage or aging damage of the wire, etc., the floor is not an insulator, the current will surround the floor, and the person is a conductor, and walking on the floor at home will be electrocuted, which will cause an accident.

The household electricity is normal, and the bathroom for bathing is grounded, and there is no ground, which is not safe. The others should also be available when the line is routed, only the old house does not have it.

Household electricity must also be grounded, which can prevent people from being injured by leakage of electrical equipment, and can have a protective effect on people.

Why should household appliances be grounded. Because of household appliances. It is most likely to leak electricity and run electricity.

If there is a leakage, the phenomenon of running power is easy. Bumping into people. Therefore, there is leakage of the ground wire installed.

You can go into the ground on your own. There is no harm to people.

Because the ground wire has been installed during the construction of the building, the residents can use it normally.

If you live in a bungalow, it is recommended that you install your own ground wire, so as to ensure the safety of your electricity.

Now at least there are few families in the city that are not grounded, and at least 8 out of 10 households will be connected It is definitely safer and more reliable than if you only use a leakage protector, and it can also increase some anti-interference ability if there are precision electrical appliances at home.

Household electricity must also have a grounding wire, only after the grounding wire, they use it, is the safest way.

Household electricity has been connected to the ground wire on the circuit, so there is no need to connect the ground wire to every appliance. Household electricity is 220V, which is relatively safe.

Because household appliances do not exceed the standard, they can be left without grounding wires.

It's not that it's not grounded, it's when building a house or a building.

The ground wire has been arranged.

If there is no ground wire.

Many household appliances will be affected.

The home wire is mainly connected to the home from outside the corridor, and generally speaking, there are still two lines, including the fire wire and the ground wire. So the situation you are talking about should be the reason why the bottom line may have been connected outdoors, right?

Rural areas are mainly not concentrated, the cost of grounding connection is too high, rural areas are generally ordinary lighting, household appliances rarely use grounding electrodes. If it is really necessary, it is recommended that a single household make a grounding device on the spot.

If there is no leakage protector at the transformer, you can make a grounding drill at the entrance to the house, connect the power neutral wire to the drill, and lead out a ground wire. If there is a leakage protector at the transformer, the neutral wire cannot be connected to the grounding drill.

Grounding method composition.

1) Grounding body: a conductor or group of conductors that are in close contact with the earth and form an electrical connection with the earth.

2) Exposed conductive part: the conductive part that can be reached by electrical equipment. It is not energized during normal times, but may be energized when it fails, and it is usually a metal casing for electrical equipment.

3) Main grounding terminal board: a combination of terminals of various grounding (such as working grounding, protective grounding) and terminals of equipotential connection wires in a building or part of a building. If arranged in rows, it is called a main ground terminal strip.

4) Protection wire (PE): the conductor that electrically connects the above-mentioned exposed conductive part, the main grounding terminal board, the grounding body and any part of the power grounding point (or artificial grounding point). For conductors that connect multiple exposed conductive sections, they are called protective trunks.

Most of the electricity used in rural households is not grounded, and the grounding wire is not arranged when the house is built, in fact, the household power supply is not necessary to install the grounding wire.

As long as the main switch into the house has a leakage protection function, even if there is leakage or personal shock, the leakage switch will trip in time.

The power grid should pull a ground wire, and the cost should be borne by the power grid company.

Rural areas do not have a good sense of safety, coupled with the grounding wire and invest a sum of money, many rural families feel that 220V wires do not need to be grounded, be careful and have nothing to wait for luck, are not willing to spend another amount of money.

Dear, I am glad to answer for you: what to do if there is no grounding wire for household electricity; If there is no grounding wire, two ways should be used to prevent electrical leakage from causing harm to the human body: 1. Grounding the metal shell of the electrical appliance, and the grounding body should be selected on the water pipe of the all-steel pipe, or on the steel bar in the wall, and the contact should be good.

2. Install the leakage switch, as long as the electrical appliances, live wire and zero wire insulation in the house are not good, even if there is a small leakage to the ground, the leakage switch will act to disconnect the power supply, which is the safest measure, only to eliminate the leakage electrical fault can be closed and transmitted. Grounding wires in the power system: It is an important tool to guarantee workers in the event of an unexpected voltage on equipment and lines that have been powered out.

According to the ministry, the grounding wire must be made of bare copper flexible wire of more than 25mm2. First of all, dig a pit of two meters three to two meters five meters away from the wall, the length of the pit should be greater than 6 meters, and the width of the pit should be enough to fit an angle steel. Next, the angle is placed vertically into the pit.

After that, the flat bar and each angle steel are welded into a "mountain" with the mouth facing downward, and the middle flat steel is punched for wiring. Finally, the ground wire is introduced into the box and connected to the ground row. I hope my answer is helpful to you, if there is anything you don't understand, you can leave a message.

Finally, I wish you good health and a good mood! <>

Summary. Dear, hello, I'm glad to answer for you: It's okay to use electricity at home without installing a ground wire, right?

Answer: pro home electricity can not be installed ground wire grounding wire is called life support line, for electrical appliances with metal shells, under normal circumstances, the shell is not charged, people will not be in danger of touching the shell. However, due to a variety of unpredictable reasons, the metal shell of the electrical appliance may be directly or indirectly connected with the live wire, if there is no ground wire, people contact the shell, the current will flow to the earth through the human body, and in serious cases, it will cause electric shock accidents.

If there is a good grounding wire, the current will flow to the earth through the grounding wire and will not endanger personal safety. Thank you for your patience. If you are satisfied with my service, please give a thumbs up, and once again wish you all the best!

Is it okay to use electricity at home without installing a ground wire?

Dear, hello, I'm glad to answer for you: It's okay to use electricity at home without installing a ground wire, right? A:

The ground wire can not be used for electricity at home, and some people call it a life support line, for electrical appliances with metal shells, under normal circumstances, the shell is not electrified, and people will not be in danger of touching the shell. However, due to a variety of unpredictable reasons, the metal shell of the electrical appliance may be directly or indirectly connected with the live wire, if there is no ground wire, people contact the shell, the current will flow to the earth through the human body, and in serious cases, it will cause electric shock accidents. If there is a good grounding wire, the current will flow to the earth through the grounding wire and will not endanger personal safety.

The family public ground trips as soon as the access control is opened.

Ground. The family circuit is not the same as the grounding safety system, which is the difference between active protection and passive protection.

Is it OK to use electricity at home without wires? It is not possible to protect the grounding (zero) line well and reliably, and cooperate with the circuit breaker or fuse that matches the safe current-carrying current value of the wire to ensure the safe use of electricity, which is the main part of safe electricity use. In low-voltage power distribution, the role of a good and reliable protective grounding (zero) line is as follows; When the leakage circuit breaker of household power distribution fails, the insulation damage of the distribution and receiving equipment causes a short circuit or causes the live phase wire to directly touch the metal shell of the power receiving device (because the protective grounding "zero" wire is connected to the metal shell of the power receiving device), it is equivalent to the phase wire and the good and reliable, the protective grounding (zero) line with very small grounding resistance is directly short-circuited to produce a large short-circuit current, resulting in the matching line wire safety current carrying capacity of the circuit breaker instantaneous tripping and opening, fuse instantaneous fuse to cut off the power supply and ensure safety.

Before the advent of leakage circuit breakers, it is to rely on good and reliable protection of the grounding (zero) wire, with a suitable circuit breaker or fuse to ensure the safe use of electricity. According to the leakage current breaking circuit is not a fault failure, but there is no good and reliable protection grounding (zero) line, if the insulation of the home current collector is damaged, the metal shell is electrified; The faulty power receiving device is installed in the place where it touches the edge of the border, or placed on the insulated desktop, and the leakage circuit breaker will not actively trip and open, and only by the human body touching its leakage current and leaking to the earth through the human body can it trip and open, so it is said; This is passive protection. Therefore I think; It is not safe for household power distribution to be ungrounded.

Therefore, in the distribution installation, the safe ampacity of the phase wire, neutral line, and protective grounding wire of each line should be protected by a circuit breaker or leakage circuit breaker that matches the corresponding tripping current value, so as to ensure the safe use of electricity.

There will be electricity. For the use of the ground wire, in fact, the main function of the ground wire is to avoid the occurrence of leakage accidents. In order to avoid the harm that strong electric potential may cause to people, many high-power electrical appliances will install grounding wires, so that the excess current or strong electric potential generated can be channeled into the ground through the ground wire.

In the past, some of the bathing electrocution accidents were caused by the lack of grounding wires installed in the house.

Many old houses usually only install the fire extinguishing line and the zero line, and lack the installation of the ground wire, so for the old house, it is very important to install the ground wire, without the protection of the ground wire, once it causes an electric shock, it is very troublesome.