High voltage network switching

Skills and knowledge in relation to switch in concentrated underground areas on the HV network and on the overhead HV network.

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

Course duration

10 days

Suitable for

People who are required to work as an authorised Western Power HOU switching operator.

Course includes

Training aligned to the Western Power HOU (high voltage overhead and underground) switching authority level as stipulated in ESSR 2016 – Appendix 4, including:

  • Knowledge of the electrical circuitry and component capabilities of the Western Power high voltage overhead and underground distribution network.
  • 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.
  • Components of the HV overhead and underground distribution network’s protection schemes.
  • 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 WRAP process.
  • Plan and prepare switching operation tasks which include any configuration of HV overhead and underground distribution switchgear and networks.
  • Written and practical skills required to perform HV switching operations as per Western Power’s switching operator HOU authorisation.


  • Network Authority Card (NAC)
  • XSUB2 Substation Entry authorisation
  • LNA3D RIC Distribution authorisation
  • LLOU switching authorisation held for a period of no less than 3 months
  • 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

What to wear

PPE Level 4, including:

  • appropriately rated switching gloves with protective outers
  • face shield

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


Written, practical & on the job assessment


A Certificate of Completion at the end of this course

Associated Authorisations

LHOU High voltage overhead and underground.

For information on how to apply for an Authorisation, contact the Authorisations Team

This course has no current classes. Please the waiting list.