In a vault, how many journey-level workers are required at a minimum when the voltage is?

In the context of electrical work, particularly regarding the safety and qualifications of workers, the requirement for journey-level workers is closely tied to the potential hazards associated with high voltages. When voltage levels rise, so does the risk of electrical shock and related incidents, necessitating the presence of skilled personnel who can manage these risks effectively.

A minimum of journey-level workers is specifically mandated at voltages of 300V and above to ensure that the tasks are performed in compliance with safety regulations. Journey-level workers possess the necessary training and experience to handle complex electrical systems safely, particularly when working in environments that pose greater risks, such as vaults or electrical rooms.

The rationale behind this requirement is that higher voltages increase the likelihood of dangerous electrical phenomena. Thus, having adequately trained personnel present is essential to maintaining a safe working environment, ensuring compliance with safety standards, and preventing accidents or injuries.

As voltages decrease below 300V, the risk is generally considered lower, which is why the regulations do not stipulate the same level of staffing for lower voltage scenarios.