the wire inside a fuse is tin why would it be dangerous to replace the fuse in a plug with a piece of copper wire when copper melts at 1350 degrees celsius and tin melts at 500 degrees celsius?

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Whether it will be dangerous depends on the thickness of the copper wire you use. [ The whole point of the fuse is to guard the gates, so to speak, and to burn the tiny thin wire inside, thus preserving the electrical circuit in your home (lights, appliances, etc.) from burning during fluctuations in the electrical current. The danger is if you replace the burned tiny thin wire with a thicker one. That will allow the electrical fluctuations to travel past it - to your home, potentially burning electrical appliances and causing fire. Myself, I have done it - the result was that every time

there was an even minute change in the electrical current (and these occur quite frequently), the overhead bulb in my bedroom would explode in a very dramatic way. When I got tired of replacing bulbs on a weekly basis, I bought automatic fuse. ;-) ]

Expert answered|askme510|Points 45|

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Asked 3/2/2010 1:27:14 AM

Updated 6/12/2022 10:07:23 PM

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Jona11

Copper has a higher melting point than the tin used in fuse wire. So, when a high level of current runs through copper wire, it continues to heat but will not melt. Instead, it causes a short circuit - potentially ruining your appliance and sparking a fire.

Added 6/12/2022 10:07:23 PM

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