Unrestricted secondary system isolations

This one day training course provides participants with the knowledge and skills to access and isolate secondary equipment associated with both primary and secondary electrical systems.

Course Duration

1 day

Who Should Attend

This course is suitable for people who are required to carry out unrestricted secondary system isolations for routine type work and are seeking the recognised authorisation.


The prerequisites for attendance at this course are:

  • Network authority card (NAC)
  • Western Australian electricians licence (preferred)
  • Protection system basics for electricians course (preferred)
  • Restricted secondary system isolations course (preferred) plus
  • Recipient in charge for work permits (NA3T/D) and/or
  • Tester in charge (NA4T/D)

Note: All prerequisites need to be current.

Learning Outcomes

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

  • Identify isolation points
  • Interpret wire markings
  • Interpret complex protection schemes
  • Access current differential type protection schemes
  • Access metering and protection secondary system voltage schemes
  • Manipulate in-service complicated protection schemes
  • Correctly use and complete key document (secondary isolation schedule)
  • Use barriers, lock-out tags(etc.) in accordance with processes
  • Use effective cross-checking techniques

PPC/PPE & Equipment Requirements

PTSWA training room standards apply:

  • smart casual attire (no shorts)
  • enclosed footwear

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


Written and practical assessments are included in the course.
Participants will need to demonstrate the required knowledge and the necessary practical skills in line with the learning outcomes.
Participants will be required to complete an on-the-job workbook. This workbook includes a number of written and practical assignments.
The assignments must be completed and submitted to Power Training Services WA.
Participants will not be considered to have completed the course until all on-the-job assignments have been successfully completed.


Certificate of Completion once on the job workbook as been assessed as satisfactory

Associated Authorisations

On successful completion of the course
ZSSIO – Secondary Systems Isolations Officer

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

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