High voltage network switching

This 10 day course provides training aligned to the Western Power HOU (high voltage overhead and underground) switching authority level. This course includes training to:

  • enable/disable circuit breaker protection devices (auto-reclose and sensitive earth fault)
  • interpret flags as may be required by the Network Controller.

Note: A visit to a substation is included in this course.

Who should attend

This course is suitable for people who are required to work as an authorised Western Power HOU switching operator.


  • Network Authority Card (NAC)
  • XSUB2 Substation Entry authorisation
  • LNA3D RIC Distribution authorisation
  • eNAR authorisation
  • A Western Australian Electricians Licence – Certificate of Registration (issued by EnergySafety WA), or
  • A Certificate III in ESI Distribution Overhead, or
  • A Certificate III in ESI Distribution Cable Jointing
  • LLOU switching authorisation held for a period of no less than 3 months

Note: All prerequisites need to be current.

Learning outcomes

As a result of attending this course participants should be able to:

  • Demonstrate knowledge of the electrical circuitry and component capabilities of the Western Power high voltage overhead and underground distribution network.
  • Demonstrate the safe switching operation of HV overhead switchgear with reference to the ESSR and HV ring main units with reference to the Switchgear Instruction Manual.
  • Identify and describe the components of the HV overhead and underground distribution network’s protection schemes.
  • Demonstrate the use of Western Power policy and procedural tools and documentation for Western Power’s switching operator HOU authorisation.
  • Use PowerOn Fusion Mobile Switching.
  • Identify and control switching hazards within the SWMS and WRAP process.
  • Plan and prepare switching operation tasks which include any configuration of HV overhead and underground distribution switchgear and networks.
  • Demonstrate written and practical skills required to perform HV switching operations as per Western Power’s switching operator HOU authorisation.

What to wear

PPE Level 3, including:

  • rated gloves appropriate to the voltage
  • face shield

See the Western Power PPE Procedure for more information about the requirements

Note: Power Training Services does not provide PPE, PPC and tools for training courses.


Assessments are included in this course. Participants will not be considered to have completed this course until all assessments have been completed to a satisfactory level. Participants will be required to complete an on-the-job workbook. The workbook must be completed and submitted to Power Training Services WA within six months after completion of the course. Participants will not be considered to have completed the course until all on-the-job tasks have been successfully completed.

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