It is easy to trip when it is cold. Why?

It is often said that the air switch trips. Especially in the coming winter, many high-power electrical appliances will be used at home. Take the electric heater as an example. At present, the maximum power of ordinary electric heaters has reached more than 2000 W. When several heating devices with the same power work together, or when each socket under the same circuit breaker is connected with the heating devices, it is easy to cause the circuit load to be too high, which will lead to the breaker opening overload protection mode, that is, tripping.

2, short circuit trip

The display of short-circuit trip on the circuit breaker is the same as that of overload trip, both of which are air switch trips, but the short-circuit trip often has a prominent performance: it trips immediately after closing the tripped switch, which is often called short-circuit trip. In this case, I suggest that you first keep the circuit breaker off and seek the help of an electrician immediately. Remember not to try to solve it yourself.

3. Leakage tripping

Leakage tripping is different from air tripping, which protects people's safety. If the circuit breaker is not closed, you need to find a professional electrician to repair it.

Extended data:

The overload protection of circuit breaker is calculated according to its rated current. If a circuit breaker with excessive amperage is used, the current of household appliances will not trip even if it exceeds the current carrying capacity of the conductor. Overload current will cause the wires to age rapidly, causing danger and failing to protect them from overload.

The arc extinguishing method widely used in low-voltage circuit breakers (air switches) is that the arc in the air is pulled into the arc extinguishing grid under the action of hot air flow (or electromagnetic force), and the fault arc is divided into several short arcs for arc extinguishing. It can be seen that the arc extinguishing grid is an important part of the circuit breaker, which is related to whether the fault arc can be separated in time and effectively, and whether the circuit problem can be solved safely.