Distinguish between the procedures for identifying hazardous energy sources and verifying energy isolation in the lockout/tagout process.

Identifying hazardous energy sources involves conducting a thorough assessment of all potential sources of energy that could pose a risk to workers during maintenance or servicing activities. This may include electrical, mechanical, hydraulic, pneumatic, thermal, chemical, or other sources of energy. The goal is to identify all potential sources of hazardous energy so that appropriate lockout/tagout procedures can be implemented.

Verifying energy isolation, on the other hand, involves physically isolating and locking out all identified energy sources to ensure that they are de-energized and cannot be accidentally re-energized during maintenance or servicing activities. This typically involves using lockout devices, tags, and other safety measures to physically prevent the release of hazardous energy.

In summary, identifying hazardous energy sources is the process of identifying all potential sources of energy that could pose a risk, while verifying energy isolation is the process of physically isolating and locking out those energy sources to ensure they are de-energized and cannot be re-energized. Both procedures are critical steps in the lockout/tagout process to protect workers from the risks associated with hazardous energy.

Identifying Hazardous Energy Sources

- Review equipment documentation: Diagrams, manuals, and other technical literature can provide information on the types and sources of hazardous energy present in a machine.
- Physical inspection: Visually inspect the machine to identify potential energy sources, such as electrical panels, hydraulic lines, or moving parts.
- Discussions with personnel: Interview operators, maintenance staff, and supervisors to gather their knowledge about the machine's energy sources.
- Specific energy types: Identify specific types of energy present, such as electrical, mechanical, pneumatic, chemical, or thermal.
- Magnitude and duration: Determine the potential magnitude and duration of the hazardous energy that could be released.

Verifying Energy Isolation

- Lockout: Physically lock out or disable the energy source using specially designed equipment, such as locks, keys, and safety plugs.
- Tagout: Attach a tag to the lockout device that indicates the locked-out condition, who authorized the lockout, and when it was done.
- Multiple lockout points: If multiple energy sources are involved, ensure that each source is isolated and locked out separately.
- Test isolation: After applying the lockout, operate the machine's controls to ensure that the energy source is isolated and cannot be accidentally reactivated.
- Visual inspection: Visually inspect all isolation points to confirm that hazardous energy is not present.
- Tryout: Attempt to operate the machine to verify that it cannot be energized without first removing the lockout devices.
- Coordinate with others: Ensure that all affected personnel are aware of the lockout and that they understand the procedures for removing it.