Quote:
Originally Posted by Jeffhs
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Whomever invented incorruptible breaker boxes is to be commended many times over, as these boxes cannot be "fixed" to defeat the breakers; this, in turn, has resulted in a drop in the number of electrical fires in homes, businesses and the like. In fact, I believe the National Electrical Code (NEC) now requires that breaker boxes, not fuse boxes, be installed in all newly constructed buildings.
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As long as the breaker panel isn't a Federal Pacific Electric Stab Lok panel. Those are known to fail to trip on overloads. Sometimes 60% failure rate. See
http://www.inspectapedia.com/fpe/fpepanel.htm sometime to see the horror stories...
I had one of these in my mom's house, replaced it with a Square D QO panel.