SENTIVO CONSULTANCY
SEN-HSE-03 / Control of work

Hazardous energy isolation awareness

Operators, maintenance support workers and supervisors; not a qualification for authorised isolation work

Discuss this course →English master · Awareness · v2.0
PERFORMANCE OBJECTIVES

What learners will practise.

  • Recognise energy sources and stored-energy hazards.
  • Explain the difference between stopping and isolating equipment.
  • Identify verification, handover and restart safeguards.
  • Apply the course decisions to a worked case and justify a response to the capstone.
  • Record control evidence, responsible roles and stop/escalation conditions in the workplace worksheet.

Inside the course

Try the slide experience →

  1. Start with a real decision
  2. Outcomes and limits
  3. How the learning works
  4. The decision map
  5. M1 · Find every energy source
  6. Draw the energy boundary
  7. Separate supply energy from stored energy
  8. Exercise 1 · Find every energy source
  9. M2 · Stop is not isolate
  10. Identify the function of each device
  11. Plan before shutdown
  12. Exercise 2 · Stop is not isolate
  13. M3 · Secure the isolation
  14. Use personal and group protection correctly
  15. Treat exceptional lock removal as exceptional
  16. Exercise 3 · Secure the isolation
  17. M4 · Control stored energy and verify
  18. Specify evidence of the safe state
  19. Control reaccumulation
  20. Exercise 4 · Control stored energy and verify
  21. M5 · Group work and shift continuity
  22. Manage the shift boundary
  23. Coordinate separate employers
  24. Exercise 5 · Group work and shift continuity
  25. M6 · Return equipment to service
  26. Check readiness before energisation
  27. Control temporary testing
  28. Exercise 6 · Return equipment to service
  29. Worked case · establish the facts
  30. Worked case · select and verify controls
  31. Worked case · maintain control
  32. Capstone · defend your decision
  33. Capstone · respond to a change
  34. Workplace job aid
  35. Local adaptation and references
  36. Assessment and transfer commitment
A SAMPLE OF THE APPROACH

Start with understanding.

Hazardous energy may be electrical, mechanical, hydraulic, pneumatic, chemical, thermal or gravitational. A stopped machine may still hold pressure, heat, spring force or a suspended load. Identification must cover the whole work boundary, including connected supplies and stored energy.

Then make a decision.

A conveyor has stopped at its push button. A jam is visible near a raised section. The operator says the motor is off, so a worker can reach in. No isolation verification has been recorded.

Discuss: What are the facts, what could go wrong, and what must be verified before proceeding?

Make it specific to your workplace.

  • Equipment-specific isolation procedures
  • Authorised and affected-person roles
  • Group isolation, shift transfer and exceptional lock-removal procedures

Before deployment, confirm these details with the client’s responsible technical reviewer. The course is a starting point for awareness learning, not a replacement for approved work procedures.

Technical reference basis

Reference review: 2026-10-24. HSE references concern Great Britain; OSHA references concern the United States. They are used for general safety principles, not presented as local law. No regulator endorsement or external accreditation is claimed.