Do your lights flicker or dim when you turn on a hairdryer or a vacuum? Maybe you notice the outlets these appliances are plugged into are warm when you touch them, or your breakers keep tripping? If you can relate to any of these scenarios, you are not alone. Overloaded circuits are common in homes across the U.S., frustrating homeowners and posing real threats to homes and their occupants.
Imagine your electrical system running through your home like a network of roads, each one designed for a certain amount of traffic (electricity). When the vehicles (lights, appliances, and devices) become too much for the roadway, traffic slows and eventually stops. This “traffic jam” along a circuit in the electrical system is called circuit overload.
A common occurrence in many homes, circuit overload happens without homeowners even realizing it. And that can be scary, considering the risks associated with overload. This guide will help homeowners better understand electrical circuits, what they are, how they become overloaded, and the warning signs to watch for. To avoid danger and disaster, you’ll also learn how to prevent circuit overload with awareness and a few simple habits. First, let’s make sure we have a clear understanding of what a circuit is.
What Is a Circuit?
An electrical circuit in your home, like a road across Massachusetts, is a path that electricity follows to different parts of the home. In your home, circuits are closed loops, meaning they form a continuous path that flows from the breaker panel through wires to a device (appliance or a light), and safely back again. Each circuit supplies electricity to a specific section of the home, and that’s why turning on too many things at once (in a certain area) can overload the loops. Each circuit has its own safe limit, typically 15 to 20 amps, depending on the system and its wiring. Maintaining these maximum loads is what keeps your electrical system operating safely.
What Does It Mean to Overload a Circuit?
Just as a busy road overrun with more traffic than it is designed to handle becomes jammed, overloading a circuit simply means it is being asked to carry more electricity than it is designed to handle safely. When this happens, electrical systems have a built-in safety mechanism to try to protect them. The circuit breaker is a safety feature that helps prevent overheating and other hazards caused by an overloaded circuit. When your breaker trips, that’s your system’s way of telling you the circuit is being asked to do more than it can. Even with circuit breakers in place, when breakers continually trip, problems can still develop. With this in mind, let’s look at everyday habits that can cause circuit overload in the home.
Everyday Habits Homeowners Have That Cause Circuit Overloads
Overloaded circuits happen every day without the homeowner ever realizing it. Here are some of the most common habits homeowners have that overload circuits:
– In our modern-day age, we have and use so many devices that rely on electricity. Plugging too many devices into one circuit (often via power strips) can easily overload the system.
– Using large appliances, such as microwaves, toasters, dishwashers, ovens, clothes washers, and dryers, on a single circuit.
– Using high-powered appliances like hair dryers, space heaters, or window AC units. All of these use large amounts of electricity. If more than one of these types of appliances is used on the same circuit, it can push the circuit over the limit.
– Using appliances and devices that were built for today’s electrical demands in an older home (more than 30 years old).
– Adding new electronics or appliances to the home and increasing the electrical demand without considering which circuit they will be on and the maximum load the circuit can safely handle.
It’s these common habits and small changes that increase the electrical demand in your home and eventually overload circuits. From having a loaded power strip on one circuit to running a television, lights, and a gaming console all at once on another, asking for too much power with too little supply puts your home at risk. This begs the question: Is your home at risk from overloaded circuits?
Signs Your Circuits May Be Overloaded
Homes struggling with overloaded circuits often give clear warning signs before anything serious happens. The most common warning signs homeowners can look for include:
- Breakers that continually trip.
- Flickering or dimming lights when certain appliances are turned on.
- Electrical outlets and switches that feel warm when they are touched or those that are discolored from heat.
- Humming or buzzing noises that come from outlets or switches.
- Unusual odors, like burning plastic.
- Appliances that don’t seem to be operating with as much power as they should.
These signs don’t always indicate an overloaded circuit, but they do warrant investigation. The presence of one or more of these signs suggests your system is under stress, putting your entire home (and its occupants) in danger.
Why Overloaded Circuits Are Dangerous
Tripped breakers might seem like the biggest issue caused by overloaded circuits, but they are only a symptom of a much bigger problem. Heat is the biggest issue. When circuits are overloaded, wires get hot, and then the insulation around them eventually melts or cracks. These compromised wires can lead to short circuits, sparks, and worst of all, electrical fires. In fact, electrical failures cause nearly 50,000 house fires every year! Even when a fire doesn’t start right away, repeated overloads can damage your wiring, outlets, and appliances, leading to costly repairs, expensive replacements, and even potential hazards for your family. With the potential risks in mind, let’s focus on prevention.
How to Prevent Circuit Overload
Don’t let the risks of overloaded circuits stress you out. Prevention is possible with a few simple habits, awareness, and sometimes with the help of an electrical contractor. Below are a few ways homeowners can prevent circuit overload:
- Spread out your devices throughout the home. Avoid plugging in too many devices, and plug higher-powered appliances (heaters and hair tools) into different outlets on different circuits.
- Avoid power strips if you can and use them wisely when you can’t. If power strips are needed, use only low-powered devices on them and never “daisy-chain” two or more together.
- Avoid using extension cords for a permanent solution. Instead, work with a qualified electrical contractor to add outlets where you need them.
- Upgrade your electrical system when it’s needed. If your home is older or has been struggling with any of the issues we’ve been discussing, it may be time for an upgrade. A licensed Northborough electrical contractor can evaluate your system and recommend simple upgrades to keep your home running smoothly and safely.
- Schedule regular inspections and maintenance of your home’s electrical system with a qualified professional who can identify risks and repair issues before they become dangerous.
Safe Power Starts with Awareness
If your home has been struggling with circuit overload, you are not alone. Overloaded circuits are among the most common electrical issues in homes across the country, but the good news is, they are preventable. By understanding how circuits work and recognizing the signs that something isn’t right, homeowners can make small adjustments to reduce risks to their homes and families. If the problem is more complex or the home is simply too old to keep up with the demands of modern living, professional electrical contractors are the go-to for the safest, most expert advice, repair, and upgrades.