Step 5. Verify Equipment Isolation
It's your last chance! Verification means confirming that equipment is separated from its energy source; therefore it is "isolated."
Double block and bleed to isolate piping.
The authorized employee must verify that:
- Equipment has been properly turned off/shut down.
- Energy-isolating devices were identified and used to effectively isolate energy.
- Individual lockout or tagout devices have been attached to the energy-isolating devices.
- Stored energy has been removed or controlled.
Attempting to restart the equipment is one way to confirm isolation; however, testing equipment ensures that capacitors have been properly discharged, hazardous heat has dissipated, and excessive pressures have been relieved.
Best Practice
Some companies refer to their energy control program as "Lock, Tag, Try" or "Lock, Tag, Test" to emphasize this important verification step.
Knowledge Check Choose the best answer for the question.
3-7. What is one common way to verify equipment has been successfully isolated?
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