A fuse is a safety device installed into plugs. It consists of a piece of tin-plated copper wire enclosed in a ceramic tube.
The thickness of the tin-plated copper wire determine how much current flow the fuse can withstand. When there is excessive current flow, the wire will melt, breaking the circuit which protects the wiring of the electrical device as well as to prevent overheating.
A fuse is chosen based on how much current flow is needed to operate the device normally. A fuse that can withstand a slightly larger amount of current compared to the current needed to operate the device normally is used. The most common fuse ratings are 3A, 5A, 10A, 13A and 15A
Example, if the device operates normally at a current of 4A, then a 5A fuse is used; if the device operates normally at 9A, then a 10A fuse is used.
A fuse is chosen based on how much current flow is needed to operate the device normally. A fuse that can withstand a slightly larger amount of current compared to the current needed to operate the device normally is used. The most common fuse ratings are 3A, 5A, 10A, 13A and 15A
Example, if the device operates normally at a current of 4A, then a 5A fuse is used; if the device operates normally at 9A, then a 10A fuse is used.
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