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For general electrical appliances, it is not related to the reversal of the live wire and the neutral wire. It is not affected to use. The electrical plug of the two-pin plug is not restricted, and it can be in both positive and negative directions.
You can plug it in casually. Only three-pin plugs with a protective ground wire are restricted and can only be inserted in one direction. This kind of plug and socket generally has a direction specification, and if you are an electrician, you should wire it according to the rules.
Otherwise, it is easy to make mistakes and recognize the wrong line of fire and zero line. In the unlikely event that you make a mistake, you may be electrocuted or have an accident.
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It is not good to burn energy-saving lamps. There are mainly potential safety hazards in the reverse connection of the zero live wire, and the relationship between the power supply of electrical appliances is not very large, and the alternating current is not divided into positive and negative poles. It is mainly the fixation of the position of the zero fire line direction adopted by the installers and users according to the human contact sequence and the parts that are easy to touch during operation, so as to avoid the occurrence of electric shock accidents in use.
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No, there will be no consequences for the single-phase electric fire wire and the neutral wire to be reversed, just like we usually plug in two-pin plugs, regardless of the positive and negative. But it can't be reversed with the ground wire.
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The regular wiring of the socket is "left zero right fire, zero wire to the N binding post of the socket, and L terminal of the live wire to the socket, even if the zero line of the fire wire is reversed, it will not affect the normal use of the equipment, and it will not burn the energy-saving lamp."
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The reversal of the live and neutral wires has an effect.
The neutral wire and the live wire are reversed, which has no impact on the role of electrical appliances, but it is equivalent to one less layer of protection for personal safety. For example, a light switch controls the live wire, and if the live wire is reversed to the neutral wire, it is equivalent to connecting the switch to the neutral wire.
When it is necessary to change the light bulb, always turn off the light, at this time the metal part of the light bulb is electrified, and when the person touches the metal part of the light bulb, there is a risk of electric shock. If the neutral wire and the live wire are not reversed, the switch controls the live wire, turn off the switch, and the metal part of the bulb will not be charged.
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Usually there will be no problems and the appliance will work normally.
However, this does not meet the norms, and it should be adjusted in time. In particular, the switch of the lighting lamp is the zero line, and the lamp holder is still connected after the switch is turned off, which has potential safety hazards.
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The power socket live wire is reversed with the neutral wire, and under normal circumstances, there will be no adverse consequences! It's just not up to the norm! For some devices, it is possible to cause induced current leakage!
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If the power socket live wire and the neutral wire are reversed, it will not affect the normal electricity consumption; It's just that if you don't wire according to national standards, it will give people an illusion and be prone to electric shock safety accidents.
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There is no problem, when controlling the power supply with a single switch, the zero wire and the live wire cannot be connected wrongly, and there is a safety problem.
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The power socket live wire and the zero wire are reversed, which does not affect the normal use of electricity, but according to the regulations, the left zero and right phases must be reversed, and the power line is reversed When the power supply of the electrical appliances is disconnected, the live wire has been live and has not passed through the switch, which is not safe.
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Ordinary electrical appliances such as energy-saving lamps will not have any problems, but in order to prevent accidents, it is best to adjust them correctly and safely.
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Usually, there will be no consequences if the zero line of the live wire is connected incorrectly, but there is definitely a need to formulate these standards, so if you find a mistake, you should take the initiative to change the wire of the socket.
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If the position of the neutral live wire of the socket is reversed, it will generally not affect the normal use of the electrical equipment.
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There are no consequences, and it can still be used normally.
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If the positive and negative poles of the bulb are reversed, there will be no problem. It can be used normally.
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There is generally no such consequence.
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The socket is reversed, and there will be no problem.
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Summary. With an ordinary electric pen, it can be measured that the neutral wire is reversed from the live wire: the wiring principle of the single-phase socket is: left zero, right fire, and upper grounding; The wiring principle of the three-phase socket is: left, right, down, three-phase live wire, upper zero wire.
If the electrical appliance is only cut off from the live wire, and the zero wire is broken after the reverse connection, then even if the socket or electrical switch is turned off, there is electricity inside the electrical appliance, but there is no loop. Generally speaking, the zero live wire is reversed, which has no effect on the normal use of electrical appliances. The neutral wire is not connected to the electrical shell, only the ground wire is connected to the shell!
But if you open the electrical case and touch the live conductors or wiring inside, you will be electrocuted. That's dangerous!
If the zero line of the three-phase four-wire socket is reversed with the live wire, the electrical equipment will have the fault phenomenon of lack of phase and undervoltage. For example, for a three-phase motor, the normal voltage is three-phase 380V. However, because one phase of the live wire is reversed from the neutral wire, the voltage between the phase voltage and the other two phases becomes 220V.
The three-phase motor is in an undervoltage operation state, and the load capacity is reduced. If the motor runs at full load for a long time, it will burn out due to excessive current; At the same time, if there is a load using 220V voltage in the device, and it happens that the live wire introduced is not the opposite phase, then the load will be damaged.
What will be the consequences if the zero wire of the three-phase socket is reversed with the live wire, and how to judge whether it is reversed?
With an ordinary electric pen, it can be measured that the neutral wire is reversed from the live wire: the wiring principle of the single-phase socket is: left zero, right fire, and upper grounding; The wiring principle of the three-phase plug-in socket is:
Left, right, down, three-phase live wire, upper zero wire. If the electrical appliance is only cut off from the live wire, and the zero wire is broken after the reverse connection, then even if the socket or electrical switch is turned off, there is electricity inside the electrical appliance, but there is no loop. Generally speaking, the zero live wire is reversed, which has no effect on the normal use of electrical appliances.
The neutral wire is not connected to the electrical shell, only the ground wire is connected to the shell! But if you open the electrical case and touch the live conductors or wiring inside, you will be electrocuted. That's dangerous!
If the zero line of the three-phase four-wire socket is reversed with the live wire, the electrical equipment will have the fault phenomenon of lack of phase and undervoltage. For example, for a three-phase motor, the normal voltage is three-phase 380V. However, because there is a phase of live wire and the neutral wire that are reversed, then the voltage of this phase and the voltage between the two phases becomes 220V.
The three-phase motor is in the state of running under the pressure of the hand, and the load capacity is reduced. If the motor runs at full load for a long time, it will burn out due to excessive current; At the same time, if there is a load using 220V voltage in the device, and it happens that the live wire introduced is not the opposite phase, then the load will be damaged.
The ......... burned out due to the high voltage of 380V
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Xiaobai asked for advice, what will happen if the zero wire of the five-hole socket and the live wire are reversed.
Hello, it is recommended to take it back, it is very dangerous to take it back, it will lead to a disaster if it is reversed, that is to say, there is no control of the fire wire, then there is no circuit, completely disconnected, there will be a lot of electronic energy-saving lamps, after the switch is powered off, there is a slight light after it is turned off, and there is a danger at the same time, so the phase line l is what we call the live wire, which is a line with regular flowing electric particles. If the fire is reversed, the live wire will be directly turned on, and the leakage switch cannot control and protect the line, which will bring potential safety hazards in life. The reverse connection between the live wire and the zero wire will lead to the reverse connection of the wall socket fire wire at home, and the power switch on the electrical appliances with three plugs is also the on/off of the control of the live wire.
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If you first connect with the live wire, generally speaking, there is no danger on the socket will not have an impact, one end is connected to the wire, a week is connected to the live wire AC regardless of positive and negative which end is connected to which end, but the coffin is not good, the coffin must be the live wire into the control line out of the light, and then the lamp is connected to the zero line, so that when your switch is disconnected, the lamp is not charged, the switch is reversed and the light is electrified, and the switch is turned off if the energy-saving lamp is reversed. And when the switch is turned off, the light will not flash again.