Before circuit breakers were used, fuses protected our circuits from overloading. At this time, homes used much less electricity than they do today. The typical fuse box was only designed to handle between 30 and 60 amps of power. It is now common for your average home to need 100-200 amps of power or even more. This can cause fuse boxes to frequently become overloaded, which leads to blown fuses.
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