At what step can an apprentice begin to work on primary energized situations?

An apprentice can begin to work on primary energized situations at the fourth step because this level of training typically involves advanced knowledge and skills that are essential for safely handling energized equipment. Working with energized systems poses significant risks, including electrical shock or arc flash hazards, which require a comprehensive understanding of safety protocols and equipment functioning.

By the fourth step, apprentices have already undergone substantial training in safety procedures, system grounding, circuit design, and troubleshooting methodologies that equip them to assess the risks and handle energized situations appropriately. This step ensures that they have built the foundational skills necessary to respond effectively in high-stakes environments while adhering to established safety standards and protocols.

Earlier steps focus on basic operational functions, safety awareness, and handling de-energized equipment, which are crucial for developing a comprehensive skill set. However, direct engagement with primary energized situations requires the more comprehensive expertise that is provided at the fourth step.