Confined Space · 2–5 min toolbox talk
Confined Space Energy Isolation and Lockout/Tagout Safety
A safety talk about isolating all energy sources and preventing unexpected flow or movement during confined space work.
Use this printed script for your tailgate or toolbox talk. Read through the hazards, script, and questions with your crew.
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“Confined Space Energy Isolation and Lockout/Tagout Safety”
Key Hazards
- Unexpected pump starts or mechanical movement
- Unexpected flow into the space (water, wastewater, chemicals)
- Electrical exposure from energized equipment
2–3 Minute Talk Script
Confined space energy isolation and lockout/tagout safety is essential because unexpected energy can kill even in spaces with good air quality.
Crews must identify and isolate all sources: electrical, mechanical, hydraulic, pneumatic, gravity, and flow. Isolation can include valve closures, line blanks, disconnects, and physical blocks depending on the system.
Lockout/tagout prevents someone else from re-energizing equipment while workers are inside. Isolation should be verified before entry.
If the system cannot be reliably isolated, the job must be redesigned or delayed until proper controls are in place.
Safety Reminders
- Identify every energy source and potential inlet into the space.
- Lockout/tagout and verify isolation before entry.
- Control unexpected flow and gravity hazards.
- Do not proceed if isolation cannot be confirmed.
Ask the Crew
- What energy sources exist here, including flow into the space?
- How did we verify isolation before entry?