What type of person should not cross the Limited Approach Boundary without escort and proper PPE?

The correct answer is that an unqualified person should not cross the Limited Approach Boundary without escort and proper Personal Protective Equipment (PPE). An unqualified person lacks the necessary training and understanding of electrical safety standards required to work safely near exposed energized electrical conductors or parts. This boundary is established to protect individuals from the risk of electrical shock and other hazards associated with live electrical equipment.

In contrast, qualified persons are trained to work on or around electrical systems and have the knowledge to recognize and avoid potential electrical hazards. Authorized persons are those who have permission from their employer to access certain areas but may not necessarily have the specialized training required to handle electrical equipment. Supervised persons may work under the guidance of qualified individuals but are still deemed capable of operating safely under supervision. Hence, it's critical that unqualified personnel remain outside these boundaries to ensure their safety.