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8 reasons for circuit breaker tripping

By:Nader Updated:September 09,2020 12:08PM

Electricity is indispensable for every family, but due to improper decoration and installation or use of electricity in daily life, the problem of switch tripping often occurs, affecting normal daily life. So what are the reasons for the trip? What are the solutions? Next, the editor will give you a detailed introduction.

1. The circuit breaker selection is too small

In the event of leakage, the user may have changed the circuit during the renovation, but did not replace the circuit breaker. For example, in order to save costs, some developers have changed the original five-hole socket to an air conditioner socket, which will inevitably cause the circuit breaker to overload and cause a trip.

Solution: Replace the trip circuit breaker.

2. Breaker installation failure

Loose wires at the lower port of the circuit breaker caused poor wire contact, which was identified as a leakage current by the leakage protector.

Solution: After the power is off, use a screwdriver to fix the lower wire of the circuit breaker. If slippage occurs on the terminal of the circuit breaker, replace the circuit breaker in time.

3. The line uses too much power

The number of sockets pre-installed by the developer cannot meet the needs of users, and the user adds the number of sockets by himself during decoration. Especially in places with dense electrical appliances such as kitchens, multiple sockets are led from the same circuit breaker. If the sockets of each branch are used at the same time, it will cause the main circuit current to overload, trigger the overload protection function of the circuit breaker, and trigger a trip.

Solution: Try not to use multiple sockets at the same time.

4. Leakage of electrical equipment

This problem often occurs in the air conditioning circuit. If the grounding device inside the air conditioner fails, it is easy to cause leakage current in the circuit, which will cause a trip. To identify whether the electrical leakage causes a trip, you can unplug the electrical appliance (not to turn it off, but unplug the plug), and then close the switch to see if it still trips.

Solution: Contact the manufacturer for after-sales service and repair.

5. Line leakage

Inferior wires, after a few years of use, the live wire or neutral wire insulation may be damaged, resulting in line leakage. When judging whether the live wire or the neutral wire is damaged, you can unplug the circuit sockets and observe whether the circuit is still tripping. If it is, then the live wire is damaged; if it does not trip and any electrical appliance is plugged in, it is the neutral wire that is damaged. .

Solution: Replace the damaged line, the project is huge. Experienced masters will choose to replace the broken wire with a ground wire, but this way the socket will have no ground wire, and only low-power electrical appliances can be used.

6. Wiring error

When connecting the socket, if the neutral wire and the ground wire of a socket are reversed, it will cause a trip during the decoration acceptance or the first use of the circuit socket.

Solution: Disassemble the socket and rewire.

7. Electrical equipment or short circuit

The phenomenon of line short circuit is relatively rare in the family. If it occurs, it is likely to be caused by heat and melting inside the socket, resulting in metal adhesion.

Solution: Replace the socket or electrical appliance that is burned out.

8. The voltage is too high

Excessive voltage causes excessive current in the line, which triggers the overload protection of the circuit breaker and causes tripping. It often occurs in places where the voltage is unstable such as new buildings or remote areas, ranging from burning electrical appliances to fire.

Solution: Call the power supply bureau and ask for repairs. If it is a new real estate, the developer will hand over the house before the circuit is successfully debugged. At this time, calling the power supply bureau to complain will often have miraculous effects.

Tripping is a problem we often encounter, and it will be helpless for some people who have no life experience. The above is the editor's analysis of the reasons for the switch trip and the solutions. I hope it will be helpful to all owners.