Which set lists essential steps in a lockout-tagout procedure?

Which set lists essential steps in a lockout-tagout procedure?

• A. Identify energy sources; isolate equipment; apply lock and tag; verify zero-energy state
• B. Identify energy sources; remove guards
• C. Impose lockout without tag
• D. Turn off equipment and leave without verification

Answer: (A)

Lockout-tagout procedures protect workers by ensuring energy sources are identified and kept isolated so the equipment cannot be energized during maintenance. The essential sequence starts with identifying all potential energy sources tied to the equipment, because any overlooked form of energy could cause a hazardous release. Next, isolating the equipment at its energy source physically disconnects it from power, fluids, or other means of energy transfer. Then, applying a lock and a tag provides a durable, visible barrier and a clear message that the equipment is under control and that only the person who applied the lock may remove it. Finally, verifying zero-energy state confirms there is no residual or stored energy inside the system and that the equipment cannot restart during testing or handling. This verification step is crucial due to stored energy in components like springs or capacitors that could release energy after isolation. The other options fall short because they omit critical safety steps or rely on unsafe practices. Removing guards does not constitute a proper energy control method and can create new hazards.Imposing a lockout without a tag removes important information about who is responsible and why the energy is isolated. Merely turning off equipment and leaving without verification does not guarantee zero energy, since stored or residual energy could still cause an unexpected re-energization.

Lockout-tagout procedures protect workers by ensuring energy sources are identified and kept isolated so the equipment cannot be energized during maintenance. The essential sequence starts with identifying all potential energy sources tied to the equipment, because any overlooked form of energy could cause a hazardous release. Next, isolating the equipment at its energy source physically disconnects it from power, fluids, or other means of energy transfer. Then, applying a lock and a tag provides a durable, visible barrier and a clear message that the equipment is under control and that only the person who applied the lock may remove it. Finally, verifying zero-energy state confirms there is no residual or stored energy inside the system and that the equipment cannot restart during testing or handling. This verification step is crucial due to stored energy in components like springs or capacitors that could release energy after isolation.

The other options fall short because they omit critical safety steps or rely on unsafe practices. Removing guards does not constitute a proper energy control method and can create new hazards.Imposing a lockout without a tag removes important information about who is responsible and why the energy is isolated. Merely turning off equipment and leaving without verification does not guarantee zero energy, since stored or residual energy could still cause an unexpected re-energization.