Which of the following is an essential safety protocol when working with 3-phase systems?

Verifying zero voltage before work is crucial when working with 3-phase systems as it ensures that the equipment is de-energized and safe to handle. This step is part of a broader safety protocol aimed at preventing electrical shocks or accidents. By confirming that there is no voltage present, an individual can work confidently, knowing that they are not at risk of electrocution or causing a short circuit.

In 3-phase systems, which often operate at high voltages and can pose significant dangers, this practice becomes even more important. It emphasizes the necessity for proper lockout/tagout procedures to protect workers and maintain safety in the workspace. This verification process is a fundamental aspect of electrical safety and is often mandated by safety regulations in many jurisdictions.