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Simulated workplace
Scenario · Electrical Contracting

Isolate and replace a tenancy switchboard

You are a fourth year apprentice electrician working under the Leading Hand Electrician.

Intermediate3 to 4 hours8 tasks
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The situation

What has happened

Tallowood Shopping Village has approved the replacement of the tenancy 14 main switchboard, job J-26-1179, for a new cafe fit-out. The outage window agreed with centre management is 6:00 am to 10:00 am on Sunday 14 September. The existing board is fed from the centre's main switchroom, but a sub-main to tenancy 15 also passes through it, and a small solar inverter for the tenancy feeds back into the board. The existing board panel may contain asbestos and a sample is being tested. Instrument MFT-04 is due for calibration within thirty days. The Leading Hand wants a complete isolation plan and job safety analysis before the day.

Your brief. Plan the isolation of every supply source to the tenancy 14 switchboard, complete the job safety analysis and isolation record, confirm the instruments are in calibration, plan the replacement sequence within the outage window, and describe how the new board will be tested before it is energised, all in line with the safe isolation procedure and the testing and certification policy.
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Tasks

Deliverables

  • Completed job safety analysis and isolation record for the outage
  • Written isolation and replacement sequence with sources, isolation points and tests
  • Instrument decision recorded on the job with the register check
  • Prepared test results and commissioning sheet

Documents to use

Systems to use

Job and Work Order Board

The record of every quoted, scheduled, in-progress and completed job across all departments, with the site, allocated tradespeople, supervising electrician and status.

Instrument, Plant and Vehicle Register

Tracks every test instrument, refrigerant recovery unit, scale, leak detector, ladder, elevated work platform and service van with its calibration or inspection status.

Test and Compliance Register

Records the mandatory test results, certificates of electrical safety, solar compliance documents and observations for every job before it is handed over.

For trainers and assessors

Units of competency

Current on training.gov.au for the Electrotechnology Training Package as at 10 September 2026.

UEEEL0014Isolate, test and troubleshoot low voltage electrical circuits
UEEEL0012Install low voltage wiring, appliances, switchgear and associated accessories
UEECD0007Apply work health and safety regulations, codes and practices in the workplace
UEECD0016Document and apply measures to control WHS risks associated with electrotechnology work
UEERE0050Identify and isolate multiple supply systems

Qualifications

UEE30820Certificate III in Electrotechnology Electrician
UEE22025Certificate II in Electrotechnology (Career Start)
Assessor notes

What to look for

Evidence guide

The isolation plan must identify all three sources including the solar inverter and the through sub-main, with a lock and tag for each and a test for dead of every conductor. Look for the asbestos hazard treated as a control point, an evidence-based decision on the instrument, and a test list that matches the Wiring Rules sequence. The student must show they work under supervision and do not sign test results.

The student's evidence summary lists every record they created or changed in the systems named above, their notes and the tasks they ticked. Verify it against the deliverables and your own assessment tool.