Which of the following distances applies to a 480V area for unqualified workers?

In the context of electrical safety and working around energized equipment, the distance that applies to a 480V area for unqualified workers is 1'1". This distance is defined to ensure that untrained or unqualified individuals maintain a safe working distance from potentially hazardous electrical equipment.

The reason this specific distance is established is to minimize the risk of electrical shock or injury for those who may not have the expertise or training to recognize and mitigate electrical hazards. Establishing a clear boundary helps protect unqualified workers who are not trained in safe electrical practices or who lack the knowledge to assess the risks associated with electrical components in the vicinity.

Other distances listed do not apply to a 480V area for unqualified workers because they exceed the necessary clearance for safety. Proper electrical safety regulations typically set explicit clearance distances depending on the voltage level and the worker's qualifications, emphasizing the importance of adhering to established safety guidelines to ensure a secure working environment around energized electrical systems.