Document ID: chunk:federal_register_of_legislation:F2016L00407:body:0:p28
Version: federal_register_of_legislation:F2016L00407
Segment Type: other
Provision Reference: 
Character Range: 73172–76272

Figure 6: Example of a danger tag and out of service tag

Testing
Testing must be carried out to confirm the relevant circuits have been de-energised and the status of any other relevant conductors in the work area.

Bonding conductors
For guidance on bonding conductors if electrical equipment is isolated at a remote location or there is a risk of induced voltage being present, see AS/NZS 4836.

6.2              Altering isolation for testing, fault finding and re-energising
It may be necessary to change an isolation point to allow for testing or fault finding on energised parts, for example testing that may be required before returning electrical equipment to service
and commissioning new electrical equipment.
Any testing or fault finding on energised parts must be carried out in accordance with requirements for energised electrical work, which are discussed in Section 7 of this Code.
If electricity supply is restored to part of the circuit then safe procedures for restoring electricity supply must be followed.

6.3              Restoring power
All reasonable steps must be taken to ensure that restoring electricity supply following isolation does not pose risks to health and safety at the workplace. For example:
    * appropriately terminating all conductors
    * carrying out appropriate testing on any new, altered or repaired electrical equipment,
       for example tests for insulation resistance, earth continuity, polarity, correct connection
      and function testing
    * removing safeguards, including temporary bonds and short-circuiting devices
    * notifying all workers working on the electrical equipment and other affected workers
      at the workplace that electricity is to be restored
    * taking precautions as appropriate to ensure that other electrical equipment is not inadvertently energised
    * following procedures for removing any locks (or other control mechanisms), tags, notices and safety signs
    * carrying out a visual inspection to ensure that all tools, surplus material and waste has been removed from the workplace.
When electricity is restored tests must be carried out to confirm that polarity is correct, actives are switched and, where applicable, phase sequences are correct before electrical equipment is used. For further information refer to AS/NZS 3017:2007 Electrical installations – Verification guidelines.

6.4              Leaving unfinished work
If work is left unfinished, the workplace must be left in a safe state including, for example, by:
    * terminating any exposed conductors
    * physically securing any exposed conductors or surrounding metal work
    * tagging, taping off the electrical equipment and the workplace area
    * informing affected persons at the workplace the work is not complete and advising of potential hazards
    * taking any necessary precautions to ensure that electrical equipment cannot become inadvertently re-energised
    * ensuring that the status of switchboards and electrical equipment are clearly and correctly labelled
    * handing over adequate information to workers