What must be provided by the employer when working in a confined space with energized electrical conductors?

When working in a confined space with energized electrical conductors, the requirement for protective barriers is crucial for ensuring safety. Protective barriers serve to prevent unauthorized access to the work area, reducing the risk of accidental contact with energized parts. They also help to keep the environment controlled and limit exposure to potential electrical hazards for both workers and bystanders.

While adequate lighting, emergency exit plans, and training sessions are important aspects of workplace safety, they may not be specifically mandated for confined spaces with energized conductors according to the NFPA 70E standards. Adequate lighting ensures visibility, but it does not safeguard against electric shock. Emergency exit plans provide guidance for evacuation in case of an emergency, and training sessions are essential for informing employees about workplace hazards, yet these do not physically protect employees from the hazards presented by energized conductors in the confined space. Therefore, the focus on protective barriers as a means to create a safer work environment is key to compliance with safety standards and regulations.