Lockout/Tagout (LOTO) for Electrical Safety

Electrocution | OSHA Fatal Four
English (US)

The Problem

Each year, workers are seriously injured or killed because machinery or electrical systems are unexpectedly energized during maintenance or servicing. These accidents are entirely preventable with the proper application of Lockout/Tagout (LOTO) procedures. Today, we’ll discuss the importance of LOTO and how to ensure electrical systems remain de-energized until it’s safe to proceed.

Identify the Hazards

  • Unexpected Energization: Electrical systems or machinery can start up without warning if not properly locked out.
  • Residual Energy: Even when equipment is powered off, stored energy can cause serious injuries.‍
  • Human Error: Failure to follow LOTO procedures can result in electrical shocks, burns, or electrocution.

Safety Practices and Preventative Measures

  1. Understand the LOTO Process:

    • Identify all energy sources powering the equipment.
    • Use appropriate lockout devices for electrical panels, circuit breakers, or equipment controls.
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  2. Follow Step-by-Step Procedures:

    • Notify Employees: Inform all affected workers that LOTO procedures will be implemented.
    • Turn Off Equipment: Shut down equipment using standard controls.
    • Isolate Energy Sources: Disconnect power using circuit breakers, switches, or valves.
    • Apply Lockout/Tagout Devices: Attach locks and tags to prevent re-energization.
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  3. Test the System:

    • Verify that all energy sources are de-energized before starting work.
    • Attempt to start the equipment to ensure no residual energy remains.
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  4. Use Tags for Communication:

    • Tags must clearly state the reason for the lockout, the person responsible, and the date.
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  5. Proper Removal of Devices:

    • Only the worker who applied the lock and tag should remove it, and only after verifying it is safe to do so.

Real-Life Case or Scenario

Where possible, use an actual incident that you have experienced or been involved in.

E.g. Let me share a real incident: A maintenance worker was electrocuted while repairing machinery because another employee unknowingly restored power to the system. Proper LOTO procedures would have prevented this by ensuring no one could re-energize the equipment without proper authorization.

Employee Responsibilities

  • Always follow LOTO procedures when servicing electrical systems or machinery.
  • Ensure locks and tags are applied correctly and securely.
  • Never bypass or attempt to remove a lock or tag applied by another worker.

Employer Responsibilities

  • Provide proper LOTO devices and ensure they are in good working condition.
  • Train employees on LOTO procedures and the importance of compliance.
  • Establish and enforce a written LOTO program that outlines responsibilities and procedures.

Discussion & Questions

  • "What steps do you take to ensure equipment is de-energized before starting work?"
  • "Have you ever encountered a situation where LOTO wasn’t followed? How was it resolved?"
  • Encourage employees to ask questions or share concerns about LOTO procedures on the job site.

Commitment/Action Plan

Starting today, let’s commit to following LOTO procedures every time we service electrical systems or machinery. If you notice any unsafe practices or missing devices, report them immediately. Together, we can ensure a safe workplace.

Wrap-Up

Electrical safety starts with you. LOTO saves lives by ensuring equipment stays off until it’s safe to proceed. Thank you for prioritizing safety and making LOTO part of your daily routine.

Standards Overview

  • OSHA’s Control of Hazardous Energy (LOTO) Standard 29 CFR 1910.147 requires employers to establish procedures to prevent accidental equipment startup or release of energy during maintenance.
  • This standard is designed to protect workers from hazards like electric shock, arc flashes, and equipment entanglement.

Disclaimer

“The information provided in this toolbox talk is provided for informational and educational purposes only. It is not intended to be a substitute for professional legal, safety, or regulatory advice. The information presented is based on best practices and general industry standards but may not apply to all workplace situations.
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It is the responsibility of the employer, supervisors, and workers to ensure compliance with applicable federal, state, and local laws, regulations, and standards, including but not limited those of the Occupational Safety and Health Administration (OSHA). Site App Pro, its affiliates, agents or representatives, as well as the authors, presenters, and distributors of this toolbox talk assume no liability for the use or application of the information provided.
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Participants are encouraged to consult appropriate legal, safety, or regulatory professionals to address specific concerns or questions. Always follow your organization's policies and procedures for workplace safety and hazard mitigation.”

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Last Updated:
December 20, 2024