The plug plugs into the socket and there is a spark that will not burn

This spark is called arcing, and when the plug touches the metal contact in the socket, there may be a small spark due to the small contact area and the instantaneous flow of current through the contact.

As a result, slight damage will be seen on the plug on the transformer, which is normal.

When the spark is large or the socket is blackened (as shown below), please stop using it.

This phenomenon is caused by the aging of the socket, the insufficient clamping force of the internal copper sheet, or the moisture vapor and oxidation of the socketIf this is the case, please replace the socket or extension cord immediately to ensure safety.

Solution: Please replace the socket or extension cord with better quality, if the clamping force of the copper sheet inside the socket is insufficient or the copper sheet is oxidized, the socket also needs to be replaced immediately.

The inside of the mobile phone flush is the switching electric original circuit, and the current when it is just plugged in is very large, and it is not surprising that there are sparks, it doesn't matter, it doesn't mean that you can eliminate the sparks by buying a bull socket! Just because there is a spark doesn't mean that the socket you bought is faulty or fake! It's normal to have momentary sparks when plugged in.!

But you should pay attention, if it is plugged in all the time or often sparks, and it is accompanied by a sizzling sound, it means that there is a poor contact, then you should check your charger plug and your socket!

1. The distance between the plug and the socket is changing, when the distance is very close, the voltage can break through the air and conduct electricity and produce high temperature. Sparks are formed.

2. There is inductance in electrical wires, and the inductance will produce high voltage at the moment of power failure, and the plug and socket are connected or disconnected in a process that is in a state of seeming to be connected and not connected, and the high voltage formed by the inductor breaks down the air to produce sparks.

It means that the plug blade is loose, and the greater the power of the electrical equipment, the stronger the electric spark will be. Therefore, this socket needs to be replaced, otherwise there will be potential safety hazards, and it is not good for electrical equipment.

When the plug comes into contact with or separates from a live socket, the air will be broken down by electricity, causing a solitary light, which is the electrical spark you see. This is normal.

The principle effect of the capacitor inside the appliance is instantaneously short-circuited, so there will be instantaneous sparks.

There is no problem, this is mainly caused by the layout and structure of circuit components, which is a normal phenomenon.

Of course, it is dangerous, which has great damage to the plug and socket, and frequent plugging and unplugging can easily cause poor contact, heating and even **, so try to turn off the switch when the high-power electrical appliances are plugged in, put an end to ignition and ensure safety.

The "electric spark" in the common colloquial language actually has a technical term called "electric arc".

Arcing occurs when two conductors (one of which carries a voltage of more than 20 V) are in close proximity to each other but are not in direct contact (virtual connection), and the voltage directly breaks through the air to produce an electric current. Due to the large air resistance, the current in the air has the characteristics of high temperature and luminescence - almost all large resistance conductors will emit high temperature and bright light when the current flows through the conductor, such as tungsten filament (incandescent lamp), electric stove, etc.

To put it in more detail: when two conductors are virtually connected, the electric field strength is greatly affected by the curvature of the contact surface, and under the action of the strong electric field, the surrounding air is ionized, producing a large number of charged ions.

These ions move under the action of an electric field, which in turn creates an electric current. But the electric field here is not closed, but in the air. When neutral particles in the air (dust, unionized air, etc.) come into contact with charged ions, kinetic energy is released – causing light and heat.

When plugging and unplugging the socket, pay attention not to touch the metal part of the plug, it is normal to have electric sparks, because when all kinds of electrical appliances are connected to the power supply, its starting current is several times higher than the operating current, when pulling out the power supply, it sometimes produces inductive or capacitive discharge, generating electric sparks, which is not dangerous.

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

This makes it easy to connect with other circuits. Through the connection and disconnection between the line and the copper part, the connection and disconnection of the circuit of the circuit can be finally achieved.

This kind of electrical appliance is used to reduce the voltage by resistor-capacitance method, when it comes into contact with the power supply, the capacitor will produce a discharge and spark, there is no danger in paying attention, but it is recommended to turn off the switch first when plugging and unplugging the electrical.

As long as the contact is good after plugging, there is no danger.

It's normal to have a spark at the moment of plugging and unplugging. Don't worry.

There are three types of sparks from power outlets:

1: The terminal of the power socket is not in good contact, and when there is a current when the appliance is plugged in, it will ignite. It is a fault.

2: The reed and plug of the power socket are not in good contact, causing ignition. It is a fault.

3: The moment the plug is inserted or pulled out, it sparks because the power of the electrical appliance is large, and the moment of insertion and unplugging is large, resulting in an arc. This is a normal phenomenon.