Look Thermography Corp.’s Post

One common issue often encountered in panel boards is the problem of circuit breakers being overloaded. Overloaded circuit breakers refer to those that are carrying a higher amount of current than they are actually designed to manage. This can result in overheating, melting, or even explosions, ultimately leading to potential fire risks and power interruptions. 📞Contact us today if you’re looking for a reliable partner for your inspection needs. We’ll help you identify potential problems before they become serious issues and ensure the safety and efficiency of your electrical systems. Your peace of mind is our priority. Email: [email protected] Phone: (561) 309-9057 Website: www.lookthermography.com #ElectricalSafety #PreventiveMaintenance #infrared #thermography #nfpa70b #electrical #maintenance #reliability

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I like the composition of this image since it shows the side of the CB and "up into" the Load side of the CB. At 60DegC - in an ambient of 30degC - right up into the CB as seen here - USUALLY means you are running the CB a bit above the rating (or at the Rating). I have found that SOME CBs seem to be able to do up to 10% more load than they are rated for before they trip. I have also found that CBs (depending on the make and brand of course), USUALLY will run approx 30degC higher at this position when running full rated load (20A load on a 20A rated CB). The HEATING in a CB is always due to the Bimetal Strip heating up when the load gets closer to the Rating. Ofcourse there CAN also be heating by faulty internal contacts - a Load measurement can often assist in deciding if that's the case. A CB trips due to heating of the Bimetal Strip, so if that's the case here - it is a normal situation AND there is very little chance of the CB Exploding. Melting of the internal components should not happen (metal parts) since the plastic around the components has a way lower melting temp and should go first. Max temp here is way below the Plastic melting temp. That said - I was not there - but a Load measurement would assist greatly here.

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