What Happens When You Overload a Circuit (and How to Avoid It)
5. Preventing Electrical Calamities
So, what actually happens when you overload a circuit? As we've discussed, the most common outcome is that the circuit breaker trips. This is a safety mechanism designed to prevent the circuit from overheating and potentially causing a fire. When the breaker trips, it shuts off the flow of electricity to the circuit, which can be inconvenient, but it's far better than the alternative.
If a circuit breaker trips frequently, it's a sign that you're consistently overloading the circuit. This is a problem that needs to be addressed, as repeatedly tripping the breaker can eventually damage it, making it less effective at protecting the circuit. More seriously, repeated overloads can cause the wiring within the walls to heat up, which can melt the insulation and create a fire hazard. Seriously, that's not dramatic effect, that's the real deal!
To avoid overloading circuits, it's important to be mindful of the total wattage being used on each circuit. Don't plug too many high-wattage appliances into the same circuit. If you're unsure which appliances are on which circuit, you can use a circuit breaker finder to identify them. Also, consider upgrading your electrical system if you consistently find yourself running out of circuit capacity.
Older homes, in particular, may have inadequate electrical systems that are not designed to handle the demands of modern appliances. Upgrading to a higher amperage service can provide more circuit capacity and reduce the risk of overloads. Consulting with a qualified electrician is always a good idea if you're concerned about the safety of your electrical system.
Pay attention to warning signs such as flickering lights, warm outlets, or a burning smell. These can indicate that a circuit is overloaded or that there is a problem with the wiring. If you notice any of these signs, immediately unplug any appliances that are plugged into the circuit and call a qualified electrician.
