I'm Really Worried I Have Upset My...
Family & Relationships3 mins ago
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For more on marking an answer as the "Best Answer", please visit our FAQ.Many appliances when switched on take a higher current than their normal working/running current. This is true particularly for appliances containing motors and explains why a fuse might blow even if it is greater than the calculated load current.. Most microwaves have motors to drive the turntable. I don't know if the microwave generator also takes a higher startup current. In these cases you cannot apply the standard W = A V formula to arrive at a suitable fuse rating. Instead look at the cable fitted to the appliance, A thick cable indicates you should use a 13A fuse. A medium cable indicates a 5 A fuse, and a thin twisted (or untwisted) pair (such as found on a table-lamp or phone charger) only requires a 3 A fuse.
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