A professional stage-lighting spot lamp is connected to a standard 230 V mains supply. The lamp has a power rating of 575 W.
The internal wiring of the plug connecting this appliance to the mains is shown in the diagram.
A fuse is a safety device containing a thin wire that melts and breaks the circuit if the current exceeds its rated value.
Which of the following is the most suitable fuse rating for the plug of this spot lamp?
1 A1\text{ A}1 A
3 A3\text{ A}3 A
5 A5\text{ A}5 A
13 A13\text{ A}13 A