There are hard stats the give strong evidence that electrical arcing causes fires. if you don't know of a case where this has happened you haven't been around very long or you are leading a protected life. AFCI s do work! Their extra cost is trivial!
They add only one percent to the cost of a home. Are you telling me your kids are not worth that?
If you don't believe stats the insurance people do. the States that ignore the 2008 NEC will pay more in homeowners insurance.
When I had my contracting company, We had to rewire homes that suffered fire damage due to electrical arcing. I said rewire-not repair. This type of damage is a mess. Roping is hard enough but reroping is far worse. Bob
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