The reason why the power cord is wound around the switch

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If our home decoration or other construction sites will find that the electrician will wrap the wire a few times and put it in the wire box after the wire is worn; then the wire is spared a few turns and then connected to the switch, what is the effect?

Let’s first take a look at why the power cord is wound a few times and then connected to the switch: electrical construction quality and acceptance specifications have this aspect, that is, there must be a certain amount of wires in the junction box, bottom box or distribution box. For surplus, the length is the wire box, and the bottom box or distribution box circumference is one-half; in this way, the electrician will reserve a certain length of wire after threading the wire, and the reserved wire cannot be plugged. It is not good to put it directly in the bottom box in the inlet pipe. Slowly, a lot of electricians have wound the wires in a circle. This is both beautiful and practical, so we will see the common wire winding in the future. The phenomenon of connecting the wires after a few turns.

Let's then take a look at why the power cord is wound a few times and then connected to the switch. What are the uses: the wire is wound a few times and then connected to the switch. First of all, it is really convenient in actual operation and looks neat and beautiful. In addition, it must be reserved due to the requirements of the specification. The length of the wire, so the extra wire must be placed in the bottom box of the switch at the end, so that after a few turns, it is convenient for us to put the wire in the bottom box; in addition, when the wire is wound a few times and then connected to the switch, we gently You can pull the ground wire out of the bottom box to connect to the switch, which is convenient for us to connect to the switch. If the wire is short, we need to connect the switch in the bottom box, which is very inconvenient;

Finally, because of this way of winding the wire a few times, a flexible connection can be formed between the wire and the switch. When the wire or the socket is pulled by an external force, you will not only remember to pull the wire on the switch, but it is also a way to prevent external force. Ways of protection from destruction.

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