Why are ArcFault breakers so unreliable?
Posted Jun 27, 2014, 6:45 PM UTC
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I have arcfault breakers for all of the bedrooms in my home and have never had an issue wither their function.
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Congratulations, but your "I never had a problem" comment doesn't really contribute to the discussion and here is an example to explain why.
Lets say you have two widgets. Widget A is the tried and true model that has been around for decades and has a premature failure rate of 0.01%. After some time, widget B is created as the safer, better replacement for widget A. Widget B has a premature failure rate of 10%. Widget B is orders of magnitude less reliable than Widget A. even though 90% of the time widget B is not an issue, it's still an unreliable piece of garbage when compared to widget A.
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Likewise a single failure is hardly indicative of a chronically faulty design.
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One of those in my game room trips whenever I use my blender. It's really annoying.
Certain types of motors essentially arc and cause them to trip. This is one of the reasons why ArcFault breakers are not required for garages.