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This is an example of the safety fuse simulation, performed with QuickField software.
Plane problem of heat transfer.
All dimensions are in millimeters.
Conductor diameter: 2 mm;
Conductor melting point T = 1050 °C;
Nominal current I = 15 A.
Determine the operating time at short-circuit current of 40 A.
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Fuse temperature vs. time:
Fuse will terminate the current in 5.5 sec.
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