What should you do if voltage is present during fuse checks?

When voltage is present during fuse checks, it is crucial to assess the grounding of the enclosure first. Proper grounding is essential for safety, as it helps to ensure that any fault currents have a safe path to the ground. If the enclosure is not properly grounded, there could be a risk of electric shock or fire.

Checking for proper grounding is a precautionary step to ensure that the energization of the circuit does not pose any danger. If the grounding is inadequate or faulty, switching off the power supply, replacing fuses, or continuing with routine checks could lead to hazardous situations.

Focusing on grounding first allows you to confirm that the system is safe to work on or if further action is necessary, helping maintain safety during any electrical maintenance tasks.