What is the purpose of a Lockout/Tagout System?

• A. To ensure supervisory approval
• B. To log maintenance tasks
• C. To prevent unexpected energizing of equipment or systems
• D. To monitor energy usage

Answer: (C)

Lockout/Tagout systems are about protecting workers by preventing equipment from being energized or releasing stored energy while maintenance or repairs are being done. The idea is to isolate the energy source and keep it from being turned back on accidentally. A lock is placed on the energy-isolating device so that the equipment cannot be restarted, and a tag is added to warn that the lock is in place and who placed it. Only the person who applied the lock can remove it, ensuring that the line remains de-energized until work is finished and the area is safe. This approach addresses hazards from electrical, mechanical, hydraulic, or pneumatic energy that could cause injury if the equipment unexpectedly starts up or releases stored energy. It’s not about supervisory approval, logging tasks, or monitoring energy usage; it specifically focuses on preventing unexpected energization during servicing.