Malfunctions caused by improper selection of circuit breakers in lighting electrical ready boards

Improper selection of circuit breakers in lighting electrical ready boards may cause various faults, which not only affect the normal operation of the power system, but also pose a threat to equipment and personnel safety. The following is a detailed analysis of this issue:

1、 Circuit breaker selection too small

When users change the circuit without replacing the circuit breaker, there may be a situation where the circuit breaker selection is too small. For example, changing the original five hole socket to an air conditioning socket, but the circuit breaker is still C16 model, will cause the circuit breaker to overload and trigger a tripping fault. To avoid such problems, the appropriate circuit breaker model should be selected based on the actual load situation. For example, larger capacity circuit breakers such as C20, C25, or C32 should be used for air conditioning sockets.

2、 Poor heat dissipation of circuit breaker

With the miniaturization of circuit breakers, the capacity and quantity of circuit breakers allowed to be installed inside the box have increased, but the issue of heat dissipation has also become increasingly prominent. The increase in ambient temperature inside the box will affect the rated current of the thermal release of the circuit breaker, thereby affecting its protective performance. Therefore, when choosing a circuit breaker, its heat dissipation performance should be fully considered to ensure that it can still work normally in high temperature environments.

3、 Circuit breaker does not match with other electrical components

The electrical components inside the lighting electrical ready board should be matched with each other to ensure the stable operation of the power system. If the circuit breaker does not match other electrical components (such as earth leakage circuit breakers, etc.), it may lead to frequent circuit failures. Therefore, when selecting a circuit breaker, it should be ensured that it is compatible with other electrical components inside the electrical ready board.

In summary, the selection of circuit breakers in lighting electrical ready boards should comprehensively consider load conditions, heat dissipation performance, and compatibility with other electrical components.