If the wire connector is easy to burn off, it indicates that there is a problem with this line, either the heat is relatively severe or the wire is too thin.
Normally, when the wire is connected, it will cause severe heating of local wires. However, if your wire diameter is thick enough, no matter how large the connector is, the heating amount is not enough to burn the wire, so you must find the cause of the burning.
1. Load overcurrent
If you have a clip on ammeter at hand, you can measure the current passed by the wire to see if the current has exceeded the rated current of the electrical equipment. If the current has exceeded the rated current, it means that there are some problems with the load, either because it has been a long time or because the internal structure is partially aged.
Repair as appropriate. If there is really no replacement part to replace, try to thicken the wire to solve this problem.
2. Wire aging
The aging of wires is also a large part of the reason for the heating of wires. If the wires are aging, the insulation degree becomes worse, and the resistance of the wires becomes smaller, then the current passing through them will become larger, and the resistance at the joints will be larger. The same current will heat up very much at the joints of this wire.
So no matter what you use to connect the wire, there will be problems. The simple way is to replace a wire with a larger diameter.
If there is no problem with the load, no over-current or wire aging, and all kinds of problems occur only when the connector is poorly handled, then consider using other methods to connect.
1. Use electric soldering iron
It is convenient and safe to use an electric soldering iron for wiring or welding. The contact surface does not need to be too large. As long as two wires are touching together, insulation should be done on the electric soldering iron point. It is not necessary to wind the two wires together for several times as usual. Try to use this method if conditions permit.
2. Use terminal blocks
The second is the use of terminal blocks. The use of terminal blocks is that two ends are clamped into the terminal blocks. Use a screwdriver to tighten two screws. It is also a very convenient tool. If possible, you can buy one, and it is also very easy to handle the insulation.
Other methods are not recommended, because the resistance will increase when the connector is made, which will lead to heating.
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