How do you check fuses in a 3 phase circuit?

To check fuses in a three-phase circuit, first ensure that the power is turned off to avoid electrical shock. Use a multimeter set to the continuity or resistance setting, and disconnect the fuse from the circuit. Probe the terminals of the fuse; a reading of zero or near zero indicates continuity (a good fuse), while an infinite or very high resistance indicates a blown fuse. Always consult the circuit diagram and follow safety protocols when working with electrical systems.