Energy Isolation
Regulations & Standards
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Hazardous Energy regulations and standards outline the requirements for isolation procedures and risk controls. The high-risk nature of work in this area means that they are likely to have a higher incidence of work-related injury and disease. Therefore, appropriate regulations and standards should be followed to prevent injuries in your workplace.
Australian Standard AS 4024.1603 - 2006
Safety of Machinery - Prevention of unexpected start-up
This Standard includes the specific requirement for all isolated energy sources to be locked, to ensure that it is not possible for somebody to inadvertently re-energise equipment that has been isolated.
Work Health and Safety Regulations 2011
The WHS regulations (Part 4.7) outline specific requirements pertaining to Electrical Safety and Energised Electrical Work. The regulation specifies that a person conducting a business or undertaking (PCBU) must ensure that:

  • Electrical work is not carried out on electrical equipment while the equipment is energised.
  • Electrical equipment that has been de-energised to allow work to be completed is not accidentally re-energised while the work is being carried out.
  • A competent person* test electrical equipment to determine whether or not it is energised.
  • Safe Work Method Statements include a description of electrical work; specify associated hazards and risks with suitable control measures.
  • The Work Health and Safety Regulations have been developed to provide all Australian workers with the same level of workplace safety protection despite specific work locality
*Competent person is someone who has acquired through training, qualification or experience the knowledge and skills necessary to carry out the task.
Whilst regulations and standards exists, each workplace should...
Develop their own isolation procedures to ensure maximum effectiveness. Factors which may affect the isolation procedures include:
  1. The reason/s for the equipment isolation, such as maintenance, cleaning, set-up, etc.
  2. The level of expertise of the person/s who will be working on the equipment once it is isolated.
Other factors may exist that will affect the isolation procedures. This is why isolation procedures should be workplace specific to suit unique operating requirements.