How can you tell if it s a short circuit in the socket or a short circuit in the plug?

First pull off the main switch and use a multimeter.

The on/off gear measures the jack if the multimeter buzzer at this time.

sound, it means that there is a short circuit in the socket, if you don't want to say that the socket is not short-circuited.

In the same way, under normal circumstances, the plug is not passable when measuring the plug with a multimeter, and if it is measured with a buzzer, it means that the plug has a short circuit.

To determine whether it is a short circuit in the socket or a short circuit in the plug, just unplug the plug from the socket, and then check whether the short circuit still exists, if the short circuit continues to exist, it means that it is generally not a short circuit in the plug, and there must be a short circuit in the circuit where the socket is located.

If you can close the plug without dialing it, it is a short circuit in the plug, and if you dial the plug, it will not help if you have a short circuit in the socket.

Unplug the socket and the switch can be sent, then basically judge that the socket is fine.

If the plug is plugged in and the switch cannot be sent, then it can be determined that the plug or the equipment behind the plug is faulty.

It is best to measure with a multimeter, which is safer and more reliable.

If the socket is short-circuited, if no load is inserted, the switch will not close, if the plug is short-circuited, only when the load is plugged in, the switch will trip, unplug the load, and the general power switch can still be closed.

If the socket is short-circuited, it will not be closed. So in most cases, the plug is short-circuited, especially if the plug is plugged and tripped.

There are three phenomena and causes:

1. Short circuit formed by mechanical external force: Generally, the socket wire head is scattered and overlapped, the screw falls, the reed is short-circuited, etc., which occurs suddenly.

2. Short circuit formed by damp water vapor: water ingress into the socket in the humid environment, etc., the short circuit and water inlet energizing occur almost simultaneously. After the short circuit occurs, the bakelite at the short circuit point may melt and carbonize, and the insulation will be damaged.

3. Short circuit due to heating: after long-term use of the socket, the reed may become loose and poor, the screw may be loose, and the wire may be broken.

It is the carbonization of the socket, or the copper sheets in the socket are leaning together, resulting in a short circuit! Can cause; Burn the fuse or jump off the air switch, or simply burn the wire of the socket, which can easily lead to a fire.

A short circuit is when two wires come into contact. When the switch is turned on, the light is on, which is what you call a "short circuit", and when the switch is turned off, the light is off, which is an "open circuit". The socket short circuit and the plug short circuit are said not to touch the two (three) have touched together, note:

The socket has a protective ground wire in addition to the neutral wire.

A short circuit in a socket is generally caused by loose wiring in the socket.

A short circuit in the socket will not burn the electrical appliances, but only the power supply equipment, and the socket belongs to the power supply equipment.

I would like to ask what to do if the wall socket is short-circuited.

The wall socket is short-circuited, pull the switch down first, and then remove the socket, look at the wiring behind it, whether the live wire collides with the neutral wire or the ground wire, if not, it is possible that the socket is broken. If you have strong hands-on ability, you can disassemble the socket to see if it is short-circuited, repair it if it can be repaired, and buy a new socket if you can't repair it.

I feel that some of the plug-in boards we buy now are two wires, there is no zero line, and when trying high-power electrical appliances, it is easy to short circuit, and it seems that some money cannot be saved.

I only heard that the wire will be short-circuited, the socket itself will generally not be short-circuited, unless there is a foreign object falling in, you can take it apart first, if there is no problem inside the socket, you just change the wire. Note that you must first have common sense in this area, and be able to distinguish whether it is a short circuit. Otherwise, it's dangerous.

The quality is too inferior, and the bakelite burns itself and short-circuits, and I have encountered such a fault before.

Hurry up and change to a new one, you can't be sloppy with electricity.

Is it the wrong connection wire, live wire, neutral wire, ground wire.

The current in the circuit is very large – so large that a strong magnetic field is generated, which can trigger the circuit breaker's short-circuit protection mechanism in an instant, causing a trip.

A short circuit is when the neutral line is in direct contact with the live wire. To distinguish between overload tripping and short-circuit tripping, you can observe the circuit breaker trip time - tripping immediately after closing, which is generally a short circuit. It trips after a while after closing, or trips irregularly, which is generally overloaded.

There are two possibilities for a short circuit:

1. The line is short-circuited, and all wire joints (including terminal joints and wire joints) are checked. See if all the connectors are plugged into the binding posts intact or wrapped in insulating tape. Especially with BVR cables.

place, it is important to check whether the wire has burrs exposed.

2. There may be a short circuit inside the electrical appliance, and the electrical appliance needs to be disassembled for inspection, or the electrical appliance needs to be replaced. Unplug and if the circuit breaker no longer trips, prove that the problem is with the appliance.

1. It may be that the current is really too large, and the power consumption in the line must be reduced or the line must be re-laid.

2. It may be a false connection somewhere, resulting in an increase in local temperature (heat = current x resistance x time, virtual connection leads to an increase in resistance, which in turn causes a temperature increase), triggering overload protection.

Generally, this can only happen if the load end of the circuit breaker is virtual (the temperature rises too far away, and the circuit breaker cannot detect it), and it is enough to check whether the load end binding post is loose.

3. The selection of circuit breaker is too small and causes malfunction - the so-called selection is too small, which means that the tripping circuit breaker does not match the model and wire thickness of the upper and lower circuit breakers. Obviously there is no fault, but it causes the circuit breaker to trip, which is called "malfunction".

Sometimes the light bulb flickers in the process of using electricity. When this happens, check to see if the home is just a light flashing or several. If it is one, you have to check whether the lamp head is not in good contact; If the lamp head is good, check the wiring of the bulb, if it is not connected, reconnect it.

If all the light bulbs in the house are flashing, then we should first check whether the neighbor's electricity is working properly. If the neighbor's household electricity is normal, you have to check whether the fuse is in poor contact, or whether the wiring of the trunk road is in poor contact, and if it is in poor contact, it can be reconnected in the corresponding place.

Don't repair the socket if it's short-circuited, it's better to replace it directly, because there will be problems after repairing, and the gains outweigh the losses.

If it's broken, don't repair it in general, maybe it's burned out with high-power appliances.

1. Cut off the main power switch;

2. Remove the burned socket;

3. Use a multimeter to measure whether the power supply is short-circuited, if there is a short-circuit, the short-circuit fault must be eliminated first;

4. Reinstall a new socket of the same specification or application;

5. Recheck whether there is a short circuit at both ends of the power supply, if it is normal, you can turn on the power supply.

Most of the socket short circuits have carbon deposits, which are difficult to repair completely, and it is better to replace them for the sake of safety.

The difference between a short circuit in a plug and a short circuit in a socket: a short circuit in a plug refers to a short circuit in the plug of an electrical appliance, which will trip or burn the fuse when plugged into the socket, and the electrical appliance cannot work normally, but it will not cause damage to the electrical appliance; If the socket is short-circuited, it will directly trip or burn the fuse, or even burn the wire and energy meter

Therefore, the answer is: the plug is short-circuited, and the electrical appliances cannot work normally, and the short-circuit of the socket will burn out the wires and energy meters