What To Know
- Look for a circuit breaker that is in the “tripped” position, usually indicated by a switch that is halfway between “on” and “off.
- If you are unable to reset the circuit breaker safely or the problem persists, it is advisable to call a licensed electrician for assistance.
- If a circuit breaker trips repeatedly, it is advisable to call an electrician to identify and resolve the underlying issue.
Electrical circuit breakers are essential components in Singapore’s electrical infrastructure, safeguarding homes and businesses from electrical hazards. However, when a circuit breaker trips, it can cause inconvenience and disruption. This comprehensive guide will provide step-by-step instructions on how to reset circuit breakers in Singapore, ensuring a safe and seamless electrical experience.
Identifying the Tripped Circuit Breaker
1. Locate the Electrical Distribution Board (DB Box): This is typically found in the kitchen, utility room, or garage.
2. Examine the Circuit Breakers: Look for a circuit breaker that is in the “tripped” position, usually indicated by a switch that is halfway between “on” and “off.”
Safety Precautions
Before attempting to reset a circuit breaker, it is crucial to take the following safety precautions:
- Turn off the main power supply at the DB Box.
- Do not touch any exposed wires or terminals.
- Use insulated tools or wear rubber gloves for protection.
Step-by-Step Resetting Procedure
1. Turn Off Affected Appliances: Switch off all appliances or devices connected to the tripped circuit breaker.
2. Identify the Cause: Inspect the appliances or wiring for any damage or loose connections.
3. Reset the Circuit Breaker: Push the tripped circuit breaker all the way to the “off” position and then back to the “on” position.
4. Turn On Appliances: Gradually turn on the affected appliances one at a time, monitoring for any signs of tripping.
5. Repeat if Necessary: If the circuit breaker trips again, repeat steps 2-4 until the problem is resolved.
Troubleshooting Common Issues
- Burnt-Out Appliance: Replace the faulty appliance or device.
- Loose Connections: Tighten any loose connections in the wiring or at the DB Box.
- Overloaded Circuit: Reduce the number of appliances or devices connected to the circuit.
- Damaged Wiring: Contact a qualified electrician to repair or replace damaged wiring.
When to Call an Electrician
If you are unable to reset the circuit breaker safely or the problem persists, it is advisable to call a licensed electrician for assistance. They can diagnose and resolve complex electrical issues, ensuring the safety of your home or business.
Types of Circuit Breakers in Singapore
1. Miniature Circuit Breakers (MCBs): Commonly used in residential and commercial buildings.
2. Residual Current Circuit Breakers (RCCBs): Protect against electric shocks.
3. Earth Leakage Circuit Breakers (ELCBs): Similar to RCCBs but also detect earth faults.
Maintenance and Inspection
To maintain the safety and efficiency of circuit breakers, it is recommended to:
- Regularly inspect the DB Box for any signs of damage or overheating.
- Test circuit breakers annually using the “test” button on the device.
- Have circuit breakers serviced by a qualified electrician every few years.
Information You Need to Know
1. What is the difference between an MCB, RCCB, and ELCB?
- MCBs protect against overcurrent, RCCBs against electric shocks, and ELCBs against earth faults.
2. How often should I inspect my circuit breakers?
- It is recommended to inspect circuit breakers regularly, but at least annually.
3. Can I reset a circuit breaker if it trips repeatedly?
- If a circuit breaker trips repeatedly, it is advisable to call an electrician to identify and resolve the underlying issue.
4. What should I do if I cannot reset a circuit breaker?
- Turn off the main power supply and contact a qualified electrician for assistance.
5. How can I prevent circuit breakers from tripping?
- Avoid overloading circuits, use surge protectors, and have electrical wiring inspected regularly.
