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The link inside a fuse is sized exactly to "blow" when a specified current passes through the wire. If you could size a wire to blow reliably at a set current you could use such an ordinary wire. However, to do this you would have to have uniformly sized wire and run a number of controlled tests to find the right wire for a given current. This might be okay for a controlled experiment, but certainly isn't recommended for practical use (and would be a Code violation).

The fuse of breaker protects the wiring from overheating and catching on fire.
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15y ago

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