Confined Space Energy Isolation and Lockout/Tagout Safety
A safety talk focused on energy isolation for confined space work, including lockout/tagout, mechanical energy, electrical hazards, stored pressure, flow control, and verification before entry.
Scan to open or share
Point your phone at this code to open this talk, or screenshot it and text it to coworkers.
Printable Resources
Link to printable files for crew meetings, briefings, or documentation.
Key Hazards
- Unexpected startup of equipment inside or connected to the space
- Electrical shock or arc exposure from energized components
- Stored pressure from pipes, pumps, tanks, or process lines
- Unexpected flow of water, sewage, chemicals, steam, air, or gas
- Mechanical movement from mixers, conveyors, valves, fans, or augers
- Workers entering before isolation has been verified
2–3 Minute Talk Script
Confined space entry becomes much more dangerous when energy sources connected to the space are not isolated. A space can be safe at the entrance but hazardous because of equipment, valves, lines, or systems connected to it.
Energy isolation should be planned before entry begins. Electrical, mechanical, hydraulic, pneumatic, thermal, chemical, gravity, and flow-related hazards should all be considered.
Lockout/tagout procedures should be followed when equipment could start, move, energize, release pressure, or introduce material into the space.
Valves, gates, pumps, blowers, mixers, conveyors, and automatic controls should not be assumed safe just because they are not currently operating.
Stored energy must be relieved or controlled. Pressure, springs, elevated parts, hydraulic systems, trapped liquids, and residual electrical energy can remain after shutdown.
Isolation should be verified before entry. Workers should confirm that equipment will not start, valves are secured, pressure is relieved, and flow paths are controlled.
Communication is important. Entrants, attendants, supervisors, maintenance workers, and operators should understand what has been isolated and what must not be changed during entry.
Safe confined space energy isolation depends on identifying every energy source, applying proper lockout/tagout, verifying isolation, and stopping entry if any energy control is uncertain.
Safety Reminders
- Identify all energy sources connected to the space.
- Use lockout/tagout when required.
- Control valves, pumps, motors, mixers, and automatic systems.
- Relieve stored pressure and other stored energy.
- Verify isolation before entry begins.
- Communicate isolation status to the entire entry team.
- Stop entry if energy control is unclear.
Ask the Crew
- What equipment or systems are connected to this confined space?
- What energy sources need to be isolated?
- Has lockout/tagout been applied where required?
- Has isolation been verified before entry?
- Who is responsible for maintaining energy control during the entry?