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Simulated workplace
Scenario · Safety, Quality and Business Support

Investigate an apprentice electric shock from a shared neutral

You are the Safety and Quality Coordinator assisting the Safety, Quality and Business Support Manager.

Advanced3 to 4 hours8 tasks
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Home/Scenarios/Investigate an apprentice electric shock from a shared neutral
The situation

What has happened

On 4 September a third year apprentice received an electric shock from a live neutral while disconnecting a socket outlet circuit in the office at Fairmont Engineering Works, recorded as INC-2026-031. The circuit breaker for the socket circuit had been switched off, but the neutral was shared with a lighting circuit that remained energised. The supervising electrician was on site but in the factory area. The apprentice was assessed at hospital and released, the regulator was notified the same day, and the apprentice is on light duties. The job safety analysis for the job lists the isolation point as 'socket breaker' and the test for dead section is blank.

Your brief. Conduct the investigation in line with the incident reporting requirements and the safe isolation procedure: gather the records, interview the people involved, establish the sequence of events and the root causes including supervision and isolation practice, propose corrective actions, and update the incident register and a draft report for the manager and the regulator.
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Tasks

Deliverables

  • Investigation report with sequence of events, contributing factors and root causes
  • Interview records for the apprentice and the supervisor
  • Updated incident register entry with corrective actions, owners and due dates
  • Toolbox talk material on shared neutrals and test for dead

Documents to use

Systems to use

Incident, Electric Shock and Hazard Register

The safety register for electric shocks, arc flash events, falls, refrigerant releases, near misses and hazards, with investigation status and corrective actions.

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.

For trainers and assessors

Units of competency

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

UEEEL0051Investigate and report on electrical incidents and causes
UEECD0018Establish, maintain and evaluate energy sector WHS/OHS systems
UEECD0026Manage risk in electrotechnology activities
UEECD0063Write work activity reports

Qualifications

UEE42120Certificate IV in Electrotechnology - Electrical Contracting
UEE40620Certificate IV in Electrotechnology - Systems Electrician
Assessor notes

What to look for

Evidence guide

The investigation must identify the failure to isolate and test the neutral and the supervision gap as system issues, not simply apprentice error. Look for interviews conducted fairly, root causes supported by the records, and corrective actions that change the procedure, the form and the supervision practice with named owners and dates. The report should be suitable for the regulator's follow-up.

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.