The power supply is out of ground, is it sometimes caused to not turn on

Electrical appliances have a neutral line and a live wire, thus forming a path, so that the electrical appliances have current through and play a role, and when the switch is turned off, the neutral line is not charged.

The ground wire is not charged regardless of whether the switch is turned off or not, and its main function is the grounding you mentioned. In order to avoid the occurrence of leakage accidents or the harm that strong electric potential may cause to people, high-power electrical appliances have a grounding wire, which can lead the excess current or strong electric potential generated to the ground through the ground wire.

Summarize the role of the ground wire

1.Prevent the leakage of the electrical shell, which will cause danger to the electrical appliance and the human body;

2.Prevent damage to electrical appliances caused by static electricity;

3.Prevent lightning from causing damage to electrical appliances.

Similar to the role of a lightning rod.

If there is no ground wire, the hardware may be damaged if there is leakage, and the machine will not be able to turn on.

No, the power supply is grounded only to prevent leakage, electric shock.

The absence of a grounding wire will not affect the boot.

No, the ground wire is connected to the chassis box and does not participate in the operation of the electrical appliances, but only introduces the static electricity on the chassis box into the ground to prevent it from being charged (generally the electrical appliances with iron shells will have grounding wires).

It doesn't matter if you turn on and ground the wire

Usually not, generally speaking, 3-pin sockets are basically without grounding wires. Failure to turn on the computer is usually due to some minor problems of the computer power supply or motherboard, such as poor contact of the plug-in cable after the power supply, loose motherboard wiring, etc.

Hello, I have helped you find the result; Hello, if the ground wire is not connected, the electrical appliance will not have grounding protection, which may cause potential safety hazards such as electric shock. But if the appliance is out of power after connecting to the ground wire, it may be due to the following reasons:1

Wrong ground wire: The wrong ground wire may be operated and the circuit will be short-circuited, so that the appliance will not work properly. 2.

Poor ground contact: Poor ground contact will cause the electrical appliance to fail to ground properly, which will affect the work of the electrical appliance. 3.

Failure of the appliance itself: If the appliance itself is faulty, it may cause a short circuit in the circuit after connecting the ground wire, so that the appliance cannot work properly. If you encounter such a problem, it is recommended that you check whether the ground wire is wired correctly, and whether the air return and ground wire are in good contact.

If there is no problem with either of the above aspects, then it may be that the appliance itself is faulty and needs to be repaired or replaced. At the same time, in order to ensure your safety, it is recommended that you must pay attention to safety when operating electrical appliances to avoid accidents. Thank you for your trust, the above is my reply, I hope it can help you, I wish you a happy life

There is no impact, if the computer does not have a ground cable, the normal use of the computer will not be affected. The ground wire is used to connect the replica conduction wire of the chassis shell to the ground. Without this wire, there would be nowhere to release the static electricity generated by the computer's switching power supply.

Method of grounding wire:

2.Connect one wire (such as copper wire) to the metal window frame and the other end to the rear of the cabinet as shown in the figure below.

3.In the 2 way, the wire is attached to a conductive object, and the internal object conducts electricity next to the insulating object. If not, you can hammer the nail as shown in the image below.

4.Check whether there is leakage inside the computer, and whether the cable outsourcing is done by Zheng Shen. Fixing the leak can also help eliminate the capacitance, as shown in the figure below.

1. Try to replace the switching power supply, if it can be used normally after replacing the switching power supply, it proves that the original switching power supply has a problem.

2. The power supply of the general computer is a three-phase wire, and there is already a ground wire in itself, as long as the ground wire at home is connected, connect the power cord, and the chassis has been grounded.

3. If you must connect the ground wire, there is no condition to connect a separate ground wire, you can use the wire directly to connect to the chassis, and the other end can also be connected to the iron door or aluminum alloy doors and windows.

One long and two short should be judged according to the BIOS to determine what is wrong, what model of your BIOS is, check it on the Internet to know.

Generally speaking, the socket used for the computer is three-ended, and the above one is the grounding wire, but now many places have not laid the grounding wire, my office is, when I went to school, I assembled a compatible machine and also had this kind of problem, the chassis leakage is very bad (it is estimated that the configuration was too poor at that time), and then I found a wire from the chassis to connect to the heating pipe, hehe.

No, the computer does not need a ground wire, and if it uses a ground wire, it is easy to break down the computer when the voltage is unstable.

It is recommended to check it from the computer itself. Check that the memory module is plugged in.

That's, it's a graphics card issue.

1: In order to suppress electromagnetic interference, the AC part of the switching power supply and the output DC part are usually connected with capacitors, of course, this capacitor has high requirements, commonly known as safety capacitors, and the safety level is very high, which is to prevent leakage or breakdown. The problem is this, because of the existence of capacitors, the leakage current causes the computer shell to be charged, but the leakage current is within the safe range, not enough to endanger personal safety, so it can be used with confidence.

2. Many computer users will encounter such a thing in the process of use, when they are about to shut down or plug and unplug the USB flash drive when touching the chassis with their hands, they will have the feeling of "electric shock"; When touching the display (CRT) screen with your hands, there is also a feeling of "discharge"; Or when you rotate the volume knob of the speaker, you will also feel numb, and when the power is high, you will feel like you have been pricked by a needle.

Three: In fact, the leakage is because the power socket is not well grounded or not grounded at all, but many people do not know the reason, and often mistakenly think that the quality of the computer is a problem. In fact, all you need to do is add a ground wire, and everything will be solved.

Four: In addition, computers, printers, and monitors all use three-wire plugs. If the three-wire connector has been used and there is still leakage, an electrician should be asked to connect the electrical circuit at home to the ground wire to ensure the safety of the use of electrical equipment that needs to be grounded such as computers.

If the third plug of the power supply you use is effectively grounded, generally do not discharge, if the discharge is 2-5 minutes, it is advisable to ensure that no current enters the host, do not have to be completely unplugged, discharge within 24 hours.

It is recommended to pull a wire to the ground outside if the computer leaks, so that it is safer.

The computer generally has a little leakage current, and there is information indicating that it is normal when it is about 3ma, and this person can't feel it.

In addition, the computer itself also has a certain amount of static electricity, which can be accumulated, and the sensitive parts of the person will feel like pins and needles when touched.

However, if electric shock occurs frequently, it means that the insulation of the computer body is not very good, especially the power supply part.

As for the ground wire, if there is one, it can lead away those normal leakage currents and static electricity, and if it doesn't, it won't get in the way, but the premise is that the computer case is okay.

Of course it's not normal, it has an impact. Maybe it's too humid in your home.

Let's go one by one: 1People who don't have electricity should be inductive electricity, and now they can't power people.

Some electrical appliances do not have coils and other components, and even if there is no ground wire, they will not induce electricity. 2.This is extremely important:

If your socket doesn't have a ground wire, it's useless if you buy a plug with a leak protection! Because there is no ground wire, a leakage detection loop cannot be formed, and when there is real leakage, the leakage protection will not jump at all! You can plug it in and try pressing the test button for leakage, it won't work.

Solution: Pull the ground wire or connect the faucet shell with one end of the thick wire, and wrap the steel pipe at one end to drive it into the ground deep on the left and right to ensure reliable connection. If the electric faucet leaks, it is very dangerous! 3.

If your live wire is worn, then the electrical shell will have a voltage of 220V, when the person touches the metal part of the electrical shell, the current will pass through the human body into the ground, and the leakage will trip at this time, and the life of the leakage will be in danger! To add: if the plug itself is two-plug, it belongs to reinforced insulation, and it will rarely leak.

Three plugs must be grounded.

1. Whether the grounding wire is connected depends on whether the electrical appliance has a metal shell, if the switch is an electrical appliance that controls the metal shell of the refrigerator, it must be grounded, so as to prevent leakage.

2. If the switch is connected to the lamp, such an electrical appliance will not be connected to the ground wire, because it is impossible for someone to touch it with the light on.

Switching power supply products are widely used in industrial automation control, military equipment, scientific research equipment, LED lighting, industrial control equipment, communication equipment, power equipment, instrumentation, medical equipment, semiconductor refrigeration and heating, air purifiers, electronic refrigerators, liquid crystal displays, LED lamps, communication equipment, audio-visual products, security monitoring, LED light bags, computer cases, digital products and instruments and other fields.

Socket, pinyin chāzuò, also known as power socket, switch socket, English translation: receptacle sok. A socket is a socket through which one or more circuits can be plugged in, through which various wiring can be inserted.

Not so bad that the switching power supply will have an EMI filter, so it needs to be grounded. But in many cases, there is no ground wire at all, so there is no connection. The basic steady-state function of the output is not affected by the ungrounded wire.