Safety Flash
Lock out/Tag out and unauthorised electrical connections/disconnections
Lock out/Tag out and unauthorised electrical connections/disconnections
- IMCA
- Safety Flash
- IMCA SF 11/25
- Control of WorkElectrical SafetyIsolationManagement of Change
- Electric shockElectrical safety
- Electrical isolationInspection and maintenance
- SwitchgearValve
- Energy and process isolationLockout and tagoutManagement of changeSafety communication
- Marine industry
- Vessel
Summary
This flash describes missing electrical and mechanical lockouts identified during a vessel engine-room audit, alongside unauthorised electrical disconnections and bypasses. It emphasises suitable lockout devices, documented approval of temporary modifications, restoration checks and clear handovers. Possible links to dynamic positioning trials are presented as assumptions rather than established causes.
Classifications: Electric shock; electrocution.
Classifications: Electrical safety; electrical hazards.
Classifications: Electrical isolation; electrical lockout.
Classifications: Inspection and maintenance; asset inspection; equipment maintenance.
Classifications: Switchgear; switch gear.
Classifications: Valve; valves.
Classifications: Energy and process isolation; isolation; energy isolation.
Classifications: Lockout and tagout; LOTO; lockout/tagout.
Classifications: Management of change; MOC; change management.
Classifications: Safety communication; toolbox talk; toolbox talks.
Classifications: Marine industry; shipping industry; maritime sector.
Classifications: Vessel; aboard ship; onboard vessel.
Summary
It was observed that electrical equipment was switched off, but LOTO was not applied in place.
IMCA SF 11/25. Themes: control of work, electrical safety, isolation, management of change.