If there are only three wires, one end of the ground wire is connected to the socket, and the other

If it is only connected to the socket and there are three wires, please tell us what the wires are.

Under normal circumstances, if it is only connected to the socket, the three wires are the live wire, the neutral wire, and the ground wire;

If it is a socket with a switch, the switch is to control the light, and the three wires are: live wire, neutral wire, control wire, ground wire should not be there, many old-fashioned (before the 90s) houses are not installed with ground wire.

If you can distinguish the zero wire of the live wire, the live wire is connected to the l of the socket, the zero wire is connected to the n of the socket, if the remaining wire is determined to be the ground wire, you can not be connected, because you have no ground wire, and it is equivalent to a virtual connection, the following figure is a schematic diagram of the wiring of the 3-pole socket for reference.

Now the socket has an indicator light, first connect the live wire, then turn on the switch, and then connect the other two wires to access the zero wire wiring hole of the socket, the socket indicator will be lit as the zero line, and the rest is the ground wire.

Hello, friend, if there are only three wires, no ground wire at one end to the socket, one end is not connected, the other end is not connected, there must be a grounding wire to connect to the socket.

Otherwise, safety cannot be guaranteed.

Given your question. For sockets, it is generally the ground wire in the middle. The left side is connected to the neutral wire, and the right side is connected to the live wire.

This is the normal way to connect. If conditions do not allow, it is possible for a short time. High power for long periods of time.

You have to cause unnecessary damage to the electrical equipment yourself. It can also cause other damage. Hope it helps, it's just a personal opinion.

You should be talking about a three-phase four-wire socket, only the three-phase power supply has no grounding wire, the ground wire is not connected, there is really no way to tie a wire on the three wires as the ground wire, this wire should meet the grounding requirements.

This is absolutely not possible, there is no grounding wire in the running equipment there is induction or once there is leakage and insulation is reduced, it will be extremely dangerous for personal safety.

I don't know what your three wires are, if there is no ground wire, there should be one of the control leads of the lighting, right?

There is no ground wire, as long as the live wire and neutral wire are properly connected to the electrical appliance.

You can refer to the following diagram to connect:

For the sake of safety, it is better to connect all three heads, and safety first.

Yes, it's just a little unsafe, make sure it doesn't leak, and use it occasionally.

As long as it can form a loop, it should be fine, and it is best to ask the repairman and electrician.

If there are only three wires, there is no ground wire, one end is connected to the socket, and the other end is not connected.

Three-prong socket. Of course you can, it's not grounded. But people have left three frames, it is best to connect the ground, because it will be safer to use, especially the electrical appliances with metal parts, when the shell is electrified, the electricity on the metal shell can be transmitted to the ground through the ground wire, so that people are not prone to the risk of electric shock.

If the wire is not grounded, it is fine, but once it is not guaranteed for personal safety.

No grounding wire. Electrical appliances can be used normally, but there are certain safety hazards.

If electrical appliances such as washing machines and refrigerators leak out, the shell will be electrified, and electric shock accidents can easily occur. Some electrical enclosures are made of plastic or other insulating materials, so there is no risk of electric shock. There is a special protection zero connection on the three-prong socket.

Jack, when using zero protection, some people often only connect the terminal head of this hole directly to the neutral wire introduced into the socket only in the bottom of the socket, which is extremely dangerous. Therefore, the dedicated grounding jack should be connected to the dedicated protective ground wire when wiring. Additional Information:

Correct wiring method of three-hole socket: 1. In the power supply system where the neutral point is not grounded, protective grounding must be carried out, and in the system where the neutral point is grounded, the equipment shell can be connected to zero protection. However, these two protection methods are not allowed to be shared in a low-voltage power grid at the same time.

2. The use of protection zero connection has the following characteristics: the use of protection zero connection electrical.

The use of high-power electrical appliances must have reliable grounding, low-power electrical appliances have reliable grounding is the best, no problem is not big, so your three-hole socket depends on what electrical appliances you use, high-power or grounding wire is good, relatively safe, low-power depends on yourself, you want to connect, it doesn't matter much!

According to the requirements of the national electrical technical specifications, the three-pin socket needs to be grounded; However, if there is no grounding wire at home, the three-pin socket will have to be left ungrounded.

Three-pin socket is not grounded wire, our household electricity is basically no ground, as long as a leakage protector is installed, the problem is solved, I hope it can help you.

It can be without a grounding wire, and it can work normally with electrical appliances, strictly speaking, if it is not grounded, if there is no grounding wire, for example, if an electrical appliance has a leakage phenomenon, the shell will be electrocuted if it is directly electrified.

If there is a lack of protection zero wire (ground wire) in the incoming line, it can not be connected, and the ground wire must not be connected privately to prevent accidents. For safety reasons, a leakage protector can be installed.

One of the three-pin sockets is connected to the ground wire, and if the ground wire is not connected, it can still be used, but it will be troublesome if there is leakage.

It doesn't affect the use, but it's very unsafe!

The two wires can be connected, the lower left corner is connected to the zero wire, and the lower right corner is connected to the live wire.

1. First of all, open the three plugs and unscrew the screws of the three plugs that need to be wired.

2. Peel off the outer skin of a certain length with scissors wire, not too long, and the appropriate length is sufficient.

3. The two wires are connected to the two pin terminals under the three-hole plug, the lower left corner is connected to the neutral wire, and the lower right corner is connected to the live wire. Then reinstall the triple plug and it's connected.

It works, but it's not necessarily safe. The top one is the grounding wire, if not, there is a lack of anti-leakage protection. If one of the plugs is broken in the socket, it is recommended to turn the socket on after powering off, take out the broken end with pliers, and then change the plug.

Three-pin socket structure:

Left zero right fire on the ground" (the ground wire is generally connected to the metal plate buried in the ground) as shown in the figure "Three-wire plug and socket structure". Three-wire plug: Appliances with metal shells are basically three-wire plugs, corresponding to three-pin sockets.

The function of grounding: the plug in the middle of the three-wire plug is connected to the metal shell of the electrical appliance, and when the three-hole socket is inserted, the metal shell is connected to the earth.

Three-wire socket, no ground wire can be used, but it is not safe, if there is leakage, it is not able to protect our personal safety.

Summary. Hello, the three-pin socket must be grounded!

Does the three-pin socket have to have a ground wire.

Hello, the three-pin socket must be grounded!

If the shell of the electrical appliance is metal, once there is a leakage, the ground wire will communicate with the shell, and the current flows to the earth through the ground wire to protect our personal safety in case of electric shock. In order to prevent the ground wire at home from breaking or aging, some people will repeat the installation to ensure the safety of household electricity.

How do I report him?

Hello, there is no ground wire, of course, it does not meet the qualification requirements!

Hello, you can take pictures, keep the evidence, and report it to the local quality supervision department!

Summary. The three-pronged plug generally has only two wires, and the upper plug is usable or unusable, so you only need to connect the two wires below the three plugs to the live wire and the neutral wire. Of course, if for safety reasons, you can connect the ground wire to the plug above.

One of the more common sockets in our family is the five-pin socket, which has two holes on the top and three holes on the bottom. Because some home appliance plugs use three, its power is relatively large, so when the connection is connected, three wires will be connected, one is the live wire, one is the ground wire, and the other is the neutral wire. The live wire and the neutral wire are not divided into left and right, and they are installed casually, and the ground wire is generally connected to the plug at the top end.

There are three wiring on the plug-in board, how to connect two wires, and the ground wire is not connected.

Hello, dear, I'm glad that Sakura will answer for you, there are three plug-in board wiring, how to connect two wires, and the ground wire is not connected. In addition, the red is generally the live wire, the blue is generally the zero line, we must not connect the reverse when wiring, which leads to the plug board can not be used normally, and even the danger of electric shock.

The three-ended plug generally has only two wires, and the plug on the top is available or not available for the cracker, so you only need to connect the two wires of the three plugs and the bottom two wires to the live wire and the neutral wire. Of course, if for safety reasons, you can connect the ground wire to the plug above. One of the more common sockets in our family is the five-pin socket, which has two holes on the top and three holes on the bottom.

Because some home appliance plugs use three, its power is relatively large, so when it is connected, three wires will be connected, one is the live wire, one is the ground wire, and the other is the neutral line. The live wire and the neutral wire are not divided into left and right, and they are installed casually, and the ground wire is generally connected to the plug at the top end.

I'm glad to answer for you, and my answer is as follows<>

The three-pin plug grounding wire is not treated like this, the following is my personal experience, I hope it can help you The remedy is very simple. Remove the panel of the adjacent socket, unscrew the cassette connecting screws of the socket, and remove the adjacent socket; Take the panel of the socket without a ground wire under the spare place, unscrew the socket and cassette connection screws, and remove the socket. Pull a ground wire from the adjacent socket with a steel wire, insert it into the ground wire terminal hole of the socket and tighten the screws.

Simply put the two sockets back in. Or the three-pin socket can not be connected without a ground wire, and the ground wire terminal can be left empty. The ground end of the three-pin socket is at the top, and the bottom two ends are buried in the middle to connect the zero live wire.

It can be connected according to the label, or it can be connected according to the left zero and right fire.

There is no grounding wire in the commonly used three-phase four-wire, if you need to add a grounding wire, you can take the three-phase five-wire system. Three-phase four-wire, refers to the live wire A, B, C three-phase (get three wires) plus a line (zero line N), where the zero line N is the neutral wire of the transformer three-phase coil, the neutral wire and the transformer shell connection, reliable and grounding device together, and three live wires to form a power supply line, this is the three-phase four-wire power supply. If you want to connect a ground wire, you need to adopt a three-phase five-wire system.

The PE safety wire (protective ground wire) is connected to the N line on the power supply transformer side, but it cannot be used as a neutral line after entering the user side, and it can only be connected together at the grounding point or near the grounding position. Otherwise, after chaos, it will be no different from a three-phase four-wire system.