Which workers are allowed to work on exposed energized lines or parts of equipment?

• A. Qualified workers
• B. Any worker with PPE
• C. Supervisors only
• D. Trainees only

Answer: (A)

The key idea is that only someone who has demonstrated the necessary training and knowledge to work safely with energized equipment — a qualified worker — is allowed to work on exposed energized lines or parts. A qualified worker can recognize electrical hazards, know how to protect against shock and arc flash, and apply the proper control measures, such as verifying de-energization, selecting and using the correct PPE, and following lockout/tagout procedures.

PPE alone isn’t enough because it reduces risk but doesn’t eliminate the hazard, and the work may still require ensuring the circuit is de-energized and the proper safety controls are in place. Supervisors may oversee work but aren’t guaranteed to have the specific qualifications to perform live work. Trainees may learn safety practices, but they aren’t considered qualified to work on energized parts without supervision and the appropriate credentials.