Connection method of circuit breaker in household distribution box
Release time:
2020-12-07
In the family, we may encounter many small appliance repairs. Then, replacing the circuit breaker is a circuit maintenance project that is more needed after our daily light bulb replacement. Because of the birth of circuit breakers, everyone said goodbye to the use of fuses and used circuit breakers. The use of circuit breakers in daily households is very important, and it is related to our daily life safety. Therefore, once the circuit breaker is damaged, we must repair it in time, so the circuit breaker has become a common power supply fault in the family, so we can learn more about how to repair it once the circuit breaker fails?
So what should we do if there is a problem with the circuit breaker? Do I have to hire a master who does the job of replacing circuit breakers? In fact, there are only those kinds of circuit breakers that we often see in our daily households, namely 1P and 2P. These two specifications are also called - level 1 and level 2, each level corresponds to two upper and lower terminals, and the width of each level is 17.5 mm (for example, the width of a 2P circuit breaker is 17.5*2=35 mm) . The circuit breakers that can be seen in the family are generally only 1P and 2P. 1P and 2P are also called 1-level and 2-level. Each level corresponds to two upper and lower terminals, and the width of each level is 17.5 mm. Back to the topic of how to choose a circuit breaker, in fact, in the choice of circuit breakers, usually, the main switch of the household distribution box uses a 2P circuit breaker or a 2P circuit breaker with leakage current, the lighting circuit uses a 1P circuit breaker, and the socket circuit uses a leakage current circuit breaker. 1P circuit breaker or 2P circuit breaker with leakage current. The breaking current of the main switch should be greater than the current of each branch. The zero line of the lower port of the main switch needs to be connected to the zero row first, and the zero line in the 1P circuit breaker circuit is taken from the zero row. The ground bar has been grounded when the power distribution box is installed, and the ground wires on all sockets are taken from the ground bar. The zero row and the ground row are similar in appearance, the difference is that the two ends of the ground row are bent, the zero row is straight, and the zero row needs to be equipped with insulated terminals at both ends when it is used. The above are some important points about the connection method of circuit breakers in household distribution boxes. You can learn about them if you have nothing to do with them.
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