It’s a sobering thought, but one we all must face - circuit breakers can fail over time, and if your circuit breaker isn't working properly, you may be in for some major problems. It's important to regularly check for damage and make sure that everything is running smoothly, and that includes checking the vacuum inside the circuit breaker.
But what does it mean to “check the vacuum”, and why should you bother? It all has to do with how electricity works. Every circuit breaker basically works like a giant switch. When electricity moves through the wires of your home, it passes through the switch, which either allows the power to flow or breaks the connection. Inside each breaker is a vacuum, which helps keep the breaker sealed so no air or moisture can get inside and cause a short circuit.
If there’s a problem with the vacuum, it can cause the breakers to become too weak to safely switch on or off. That’s why it’s so important to periodically check the vacuum inside the breaker. Luckily, it’s relatively easy to do.
First off, you’ll need to make sure the breaker is off so you can work safely. Once that’s done, open up the breaker and inspect the vacuum. You’re looking for any torn, cracked, or otherwise damaged surfaces that might indicate a problem. If you notice anything, it’s best to replace the vacuum as soon as possible.
You may also need to test the vacuum inside your breaker. To do this, use a vacuum tester, which is a small device that can measure the strength of the vacuum. A healthy vacuum should read around 20 inches Hg (inches of mercury). Any reading lower than that indicates a problem and should be addressed as soon as possible.
Checking the vacuum in your circuit breaker is a simple and straightforward process that can help ensure your safety by assuring that your breakers are working properly. If you’re not confident in your ability to check the vacuum, consult a professional electrician who can help you out. Otherwise, take the few minutes necessary every month or so to check the vacuum - it could potentially save you from some serious trouble down the line.
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