What are the key steps to re-energize equipment after maintenance?

• A. Confirm area is clear of tools/obstructions, remove LOTO, verify absence of voltage, gradually re-energize following procedure, and document the action.
• B. Power the system immediately to test for function.
• C. Skip documentation.
• D. Ignore voltage verification.

Answer: (A)

Re-energizing after maintenance requires confirming that everything is safe and under control before power is restored. Start by making sure the area is free of tools and obstructions and that no one is at risk from moving parts or energized equipment. Then remove the lockout/tagout devices only after you have verified there is no residual or stored energy. This verification is done by confirming absence of voltage with the appropriate testing equipment and by following the established energy-control procedures for the system. Once zero energy is confirmed, re-energize gradually according to the documented startup or re-energizing procedure, and monitor for any abnormal conditions or alarms as the equipment comes back online. Finally, document that the re-energization has been completed, noting who performed the work and the steps taken, so there is a traceable safety record for future maintenance.

Rushing to power up without verification is unsafe because energy could still be present. Skipping documentation removes an important safety record for future reference. Ignoring voltage verification leaves hidden energy capable of causing shock or unintended startup.