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PILE19EX5.2004062914..

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PILE19EX5.2004062914..
19.3 Electrical safety
a suitable fuse for a
Example 5 Choosing
microwave oven
What fuse should be used in the plug of a
microwave oven rated at ‘220 V, 800 W’?
19.3 Electrical safety
Solution
Operating current of the microwave oven
P
800 W = 3.64 A
=
=
V
220 V
We should use a fuse of fuse rating 5 A.
10 A and 13 A fuses are not used because if
a large current flows, the microwave oven
would be damaged before the fuses melt.
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