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When many people decorate at home, they will consider a problem, whether the electrical sockets and electrical connections at home need to be equipped with ground wires? In fact, in the previous old-fashioned decoration, there was no such thing as installing a ground wire. Because there was no electricity in the previous house, the wires were all connected back, and naturally there was no way to install ground wires.
However, the current commercial housing or self-built houses will take into account the grounding wire.
According to the regulations of the state, it is necessary to ground the wire. First of all, the incoming line in our home needs to be equipped with a leakage circuit breaker.
In order to prevent the leakage of electrical appliances in the home, it will cause harm to the human body and electrical appliances, and even cause fires. Secondly, our electrical appliances all need to be protected by grounding.
Measure. That is, when connecting wires, one is the live wire, one is the neutral wire, and the other is the ground wire. In order to be when the electrical appliances in the home leakage, high voltage.
It will be removed from the wire without causing an electric shock hazard to the human body.
One might wonder if it would make a difference if there was no grounding wire. What is a ground wire, that is, a lightning cable, is usually a wire that introduces electricity to the earth. The biggest function of the grounding wire is to avoid direct damage to people when leakage occurs in the household, and to lead the electricity of the charged metal to the earth.
There is also a kind of lightning protection grounding.
It can protect power electronics from lightning strikes and play a protective role. Both safety grounding and lightning protection grounding are used to provide a safe protective measure for electronic power equipment or personnel, and to protect the safety of these equipment and personnel.
Generally, the ground wire is selected in a humid place, and the galvanized angle iron of about 1m5 is driven into the ground, and then the wire is led out of the room. Of course, there are also ground wires that are connected directly to metal conduits that may meet the earth, such as our water pipes. Here is a warm reminder, if you directly punch a nail wiring on the wall, then the effect is not as good as the one that directly drives the galvanized angle iron into the ground.
This is because practices like this only release static build-up on the device, not protection.
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Sockets without grounding wires do not affect the use of appliances with triangular plugs, nor do they affect the lifespan. It's just that if there is a leakage that will hurt people, maybe you won't leak electricity once in ten years, and if you leak once, it can be fatal.
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Be sure to ground the wire. The ground wire can protect our safety, if the ground wire is not connected, the home with high-power electrical appliances is easy to be electrocuted, and the ground wire can transmit part of the electricity to the ground.
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Yes, it is very important to be grounded when decorating, if there is a short circuit in the electrical circuit, the ground wire can play a good measure, and there will be certain safety hazards without the ground wire.
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Of course, it is necessary to ground the wire, because it is dangerous to not be grounded, and it is easy to generate static electricity.
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When decorating, it must be grounded, the ground wire is really important, and some household appliances must use the bottom line, which is also a kind of protection for household appliances and home circuits.
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When decorating, it is necessary to connect the ground wire, and electrical appliances such as water heaters must have a ground wire to ensure safe use, so it is best to connect the ground wire when decorating, just in case.
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The ground wire must be grounded. It is indeed very important, if there is no grounding wire, there will be a lot of safety hazards in the later stage, and it does not look very beautiful.
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Of course, the ground wire is very important, which can help us discharge certain safety hazards.
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Be sure to pick it up, it is very important, if you have more land, you will not let the expensive household appliances you buy be burned down, and you will spend your money in vain.
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The metal shell of the electrical appliance may be directly or indirectly connected with the live wire, if there is no ground wire, people come into contact with the shell, the current will flow through the human body to the earth, and in serious cases, it will cause electric shock accidents. If there is a good grounding wire.
The current will then flow to the ground through the ground wire and will not endanger personal safety. If there is no ground wire in our new house, then it must not meet the requirements, and we can report it to the relevant department. So is it necessary to have a ground wire?
For example, a friend now asks such a question: Is it okay for a circuit in the home to be ungrounded? How does it work?
<> have qualified grounding wire, grounding resistance.
4 ohms, leakage will trip as soon as possible. Leakage protection malfunction air switch.
Also trips. Leakage protection, air switch are broken, and the wire will be hotly damaged. Even in the most extreme cases, even if the electrical appliance is electrified, there will be no current in the human body, because the electricity will leak from the ground wire.
Our rural self-built houses generally ignore this line, and how to deal with it when there is no grounding point for the grounding wire in the home? with galvanized pipes.
Or one end of the galvanized angle iron is driven into the ground to a depth of more than 2 meters, and the other end is used as a connection point to effectively connect to the user's distribution box with copper wire.
to the ground.
And check the leakage protector regularly.
to ensure proper functioning. There is a detection button on the leakage protector, press it at least once a month to see if it can be tripped. If it can be tripped normally, you can press the reset button to close and use.
Yes, there are two main wires in the home circuit, the live wire and the neutral wire, and the ground wire is also required for electrical appliances with metal shells to ensure the safety of use.
The leakage protector can be installed on the entrance line, and the room is not obviously damp, and there is no problem with keeping the home environment dry! If you find that your home has serious water leakage, humid air, mopping the floor every day, and mopping the door and window tightly, it is easy for the line to be damp and cause a leakage accident. Then the risk of electric shock increases and endangers the safety of our lives.
Therefore, whether it is a residential or commercial place, there must be a grounding wire.
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Yes, but you should follow the correct method of safe electricity use. If the household appliance has leakage and there is no grounding wire, there is a risk of electric shock If the ground in the home is relatively humid and there is no ground wire, there is a leakage situation, and it is also easy to be electrocuted.
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Because a leakage protector is installed, there is no need for a grounding wire.
Some rural households use electricity, there is no grounding wire, as long as the leakage protector is installed, it also plays a role in preventing electric shock, and there is grounding protection in the electrical circuit.
If there is no grounding wire, if a person touches an electrical appliance, the current will flow into the earth through the human body, and the leakage will also trip in an instant, so as to ensure personal safety. To put it in layman's terms, installing a leakage protector in a circuit with a grounding wire is to ensure that the electrical leakage is not charged and that people are okay when they encounter it. In the circuit without grounding wire, it is necessary to install a leakage protector to ensure that people do not harm when they encounter leakage electrical appliances, which used to be called electric shock protectors.
What should be paid attention to with the grounding wire
1. First of all, the staff of the sail ground line must go through professional training, and only the stool bureau can operate with relevant operation certificates. Moreover, before the grounding wire, it is necessary to check the electricity first, and look at the site and the existing power**, so as to avoid the wrong power outage and cause the charge to hang the grounding wire.
2. Secondly, when the grounding wire is grounded, it is necessary to check whether the copper wire of the ground wire is broken, whether the screws are loose, etc., and replace and repair it in time if it does not meet the requirements. Moreover, when driving the grounding pile, try to operate on a viscous surface, otherwise if the surface layer is soft, it may cause looseness or weathering.
3. Then the grounding wire can not be connected with the branch wires such as pull wires, metal pipes or ** wires, because these branch wires are not only too large and unstable, but also lead to induction electricity once the charge is too large, which will cause harm to the human body, and in serious cases, it will cause more damage.
What should be paid attention to with the grounding wire
1. First of all, the grounding wire staff must undergo professional training and have relevant operation certificates before they can operate. Moreover, before the grounding wire, it is necessary to check the electricity first, and look at the site and the existing power**, so as to avoid the wrong power outage and cause the charge to hang the grounding wire.
2. Secondly, when the grounding wire is grounded, it is necessary to check whether the copper wire of the ground wire is broken, whether the screws are loose, etc., and replace and repair it in time if it does not meet the requirements. Moreover, when driving the grounding pile, try to operate on a viscous surface, otherwise if the surface layer is soft, it may cause looseness or weathering.
3. Then the grounding wire can not be connected with the branch wires such as pull wires, metal pipes or ** wires, because these branch wires are not only too large and unstable, but also lead to induction electricity once the charge is too large, which will cause harm to the human body, and in serious cases, it will cause more damage.
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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.
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What is ground used for? The ground wire is the protective grounding of the equipment shell, the electrical equipment of the metal shell, if the ground wire is not grounded, the internal line is paired with the metal of the shell, or the coil insulation of the motor is damaged and leakage, the metal shell of the equipment will be electrified, and people will be electrocuted and even have a life danger, the grounding wire can lead the current into the ground, generate grounding current, and the switch will trip.
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Nowadays, there are more and more electrical appliances in people's homes, such as refrigerators, TVs, air conditioners, heaters, water heaters, humidifiers, etc. More electrical appliances mean more grounding wires. So, do all electrical appliances have to be grounded?
In fact, not all electrical appliances need to be grounded, but only those with conductive metal housings must be grounded.
Why? This is because people can easily touch electrical appliances with conductive metal shells, in case these appliances leakage, the leakage current will pass through the metal shell of the electrical appliances, and when people touch the shell, the current will flow through people's bodies, resulting in electric shock.
If the leakage current reaches 15 milliamperes, it will cause suffocation of the human brain, injure people's bodies, and in severe cases, electrocution. Under normal circumstances, the grounding resistance of a qualified ground wire cannot be greater than 4, and the resistance value of the human body is about 1600. Once the electrical appliance leaks, the leakage current flows to the earth through the ground wire without passing through the human body, causing electric shock.
Since electrical appliances with conductive metal enclosures require grounding wires, what are the early ones among these appliances? Refrigerators, cold drink machines, air conditioners, electric fans, ventilation fans, hot and cold air vents, air dehumidifiers, electric stoves, microwave ovens, induction cookers, electric ovens, rice cookers, dish washers, electric water heaters, food digging processors, televisions, radios, tape recorders, video recorders, video cameras, combined stereos and other electrical appliances in people's homes all need grounding wires.
When people install the ground wire, they must ensure that the quality of the ground wire is qualified, so that the electricity is safe. If people connect the ground wire of poor quality, it cannot play the role of preventing leakage, it is better not to connect.
1. How to be grounded by the grounding wire.
You can find a 40 4 galvanized angle steel, use the galvanized angle steel to drive into the ground, the depth is about 1.5 meters, and then connect the ground wire to the angle steel to complete. The grounding wire is to connect the ground wire to the ground to be considered grounding, whether we are a commercial house or a rural homestead, we need to connect the ground wire to the ground to be considered grounding. >>>More
The first method is to make a grounding wire on the socket of the three ports, the left side of the mouth is the zero line, the right port is the live wire, and the middle is the grounding wire. >>>More
The metal shell of the electrical appliance may be directly or indirectly connected with the live wire, if there is no ground wire, people come into contact with the shell, the current will flow through the human body to the earth, and in serious cases, it will cause electric shock accidents. If there is a good grounding wire. >>>More
Many people like electric water heaters at home, but they don't know whether they have to be grounded, and what harm will be there if they are not grounded, so I will introduce them below. First of all, the national standard stipulates that the water heater socket is connected to a reliable ground wire, which is a strict requirement, and the ground wire must be reliable, otherwise the poor grounding or loss of ground will not only lose its role in ensuring our safety, but more importantly, it may lead lightning into the room and cause more serious accidents, so we must be cautious. >>>More
1. Note that the test cannot be carried out by measuring the resistance, because it is not allowed in the live state. >>>More