1, the outlet issued a strange sound, the reason is very clear, is caused by poor contact between the plug and the socket, this situation is very dangerous, a long time will occur fire accident, to pull the plug in time to check, do not have a lucky mind.
< br >
2, the socket itself of the wiring and wire connection is loose, a plug in electrical appliances will emit a squeak strange sound, this situation is generally the decoration of the socket behind the screw is not tight caused, a long time will occur fire accident, to open the socket in time to check.
< br >
3, the household distribution box in the sizzling sound, with the elimination method can be checked one by one is the circuit breaker or leakage protector issued by the sound, and then judge is the circuit breaker or leakage protection wiring loose or the protection switch is bad. If a fire accident occurs over a long period of time, it should be dealt with in time.