Risk Assessment for Electrical Apprentice with Partial Colour Blindness

Assessment Date: [DATE]

Assessor: [ASSESSOR NAME]

Department/Area: [DEPARTMENT/AREA]

Review Date: [REVIEW DATE]

1. Assessment Scope

This assessment covers electrical apprenticeship tasks where the worker may be exposed to colour-coded wiring, terminals, breakers, labels, indicators, and other electrical components that rely on colour identification. It includes routine installation, termination, testing, inspection, fault-finding, and panel work in low-voltage electrical environments, as well as associated access, housekeeping, and supervision arrangements. The assessment also considers competency, fitness for work, reasonable adjustments, safe systems of work, PPE selection, supervision, training, and compliance with occupational health and safety requirements and electrical safety standards. Exclusions: this assessment does not cover high-voltage utility line work, confined space entry, live testing beyond normal apprentice duties, or specialist tasks requiring separate permits or task-specific assessments unless specifically authorised and controlled.

2. Risk Assessment Methodology

A task-based risk assessment approach was used, combining hazard identification, likelihood and severity evaluation, and control selection using the hierarchy of controls. The assessment considers the worker’s partial colour blindness as a human-factor limitation that may affect recognition of colour-coded conductors, phase markings, warning labels, and component identification. Risks were rated using a 5x5 style matrix with likelihood levels of Rare, Unlikely, Possible, Likely, and Almost Certain, and severity levels of Negligible, Minor, Moderate, Major, and Catastrophic. Overall ratings are expressed as Low, Medium, High, or Extreme. Controls prioritise elimination and substitution first, then engineering controls, administrative controls, supervision, and PPE. The assessment also incorporates safe work practices such as de-energising equipment where possible, lockout/tagout, job planning, and PPE hazard assessment principles.

3. Risk Matrix Reference

The following matrix is used to evaluate risk levels based on likelihood and severity:

		Likelihood
Rare	Unlikely	Possible	Likely	Almost Certain
Severity	Catastrophic	Low	Low	Low	Low	Medium
Major	Low	Low	Low	Medium	Medium
Moderate	Low	Low	Medium	High	High
Minor	Low	Medium	High	High	Extreme
Negligible	Medium	High	High	Extreme	Extreme

4. Hazard Identification and Risk Evaluation

1. Misidentification of colour-coded conductors, terminals, or phases due to partial colour blindness, leading to incorrect termination, testing, or connection of live circuits.

Potential Consequences: Incorrect wiring can cause electric shock, arc flash, equipment damage, process failure, fire, or injury to the apprentice and others who later work on the installation.

Affected Persons: Electrical apprentice, supervising electrician, other trades, maintenance personnel, and building occupants.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

• Eliminate reliance on colour alone by using de-energised work wherever possible and verifying circuits before contact.
• Substitute colour-only identification with alphanumeric labels, ferrules, engraved markers, terminal numbers, and documented wiring schedules.
• Use engineering controls such as insulated barriers, test points, and clearly segregated conductors to reduce the chance of wrong connection.
• Implement administrative controls including a written safe system of work, two-person verification for phase identification, and pre-task briefing on colour-vision limitations.
• Provide close supervision by a competent electrician for tasks involving phase identification, termination, or energised verification.
• Issue task-appropriate PPE, including electrical gloves and eye/face protection, as required by the task and hazard assessment.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	Medium

2. Exposure to energised electrical parts during installation, testing, troubleshooting, or panel work.

Potential Consequences: Contact with live parts may cause electric shock, burns, cardiac arrest, secondary falls, or fatal injury.

Affected Persons: Electrical apprentice, supervising electrician, nearby workers, and anyone entering the work area.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Catastrophic	Extreme

Control Measures

• Eliminate the hazard by de-energising equipment before work begins whenever practicable.
• Apply lockout/tagout and verify absence of voltage using properly rated test equipment before touching conductors.
• Use engineering controls such as barriers, covers, insulated tools, and approach boundaries to prevent inadvertent contact.
• Use administrative controls including permit-to-work, job planning, switching procedures, and clear communication of isolation points.
• Restrict energised work to authorised, competent persons only and require direct supervision for apprentices.
• Provide PPE suitable for electrical hazards, including arc-rated clothing, insulated gloves where required, safety glasses, and face protection.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Catastrophic	High

3. Arc flash and arc blast during switching, testing, fault-finding, or accidental bridging of phases.

Potential Consequences: Severe burns, eye injury, hearing damage, blast trauma, ignition of clothing, and fatal injury may occur.

Affected Persons: Electrical apprentice, supervising electrician, nearby workers, and any person within the arc flash boundary.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Catastrophic	Extreme

Control Measures

• Eliminate exposure by de-energising equipment before work and avoiding live work unless it is justified and authorised.
• Substitute lower-energy methods such as remote testing, non-contact instruments, or lower-energy equipment where feasible.
• Use engineering controls including arc-rated enclosures, barriers, covers, and maintained protective devices.
• Apply administrative controls such as arc flash risk assessment, approach boundaries, job planning, and signage.
• Require arc-rated PPE selected for the task, including face shield or hood, flame-resistant clothing, gloves, and hearing protection where indicated.
• Ensure the apprentice does not perform energised tasks without competent supervision and explicit authorisation.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	High

4. Inadequate competency or task authorisation for an apprentice working on electrical systems beyond their training or experience.

Potential Consequences: Errors in isolation, testing, wiring, or tool use may lead to shock, arc flash, equipment damage, or unsafe work practices.

Affected Persons: Electrical apprentice, supervising electrician, other workers, and the public if systems are left unsafe.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Likely	Major	High

Control Measures

• Eliminate unsupervised work on tasks requiring qualified-person judgement.
• Use a competency matrix to match tasks to the apprentice’s verified skills and restrictions.
• Provide structured supervision with step-by-step instruction, hold points, and sign-off for critical stages.
• Use administrative controls such as work instructions, permit systems, and pre-job briefings.
• Restrict energised testing and fault-finding to qualified persons, with the apprentice observing or assisting only when permitted.
• Review competency after training, observation, and practical assessment before expanding task scope.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	Medium

5. Fitness-for-work issues such as fatigue, stress, medication effects, or reduced concentration affecting safe electrical work.

Potential Consequences: Reduced attention may cause missed isolation steps, incorrect identification of conductors, poor tool control, or delayed response to danger.

Affected Persons: Electrical apprentice, supervising electrician, and others exposed to unsafe work outcomes.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

• Eliminate or postpone work when the apprentice is unfit for duty.
• Use administrative controls including pre-start fitness checks, fatigue management, and reporting of medication or health concerns that may affect safety.
• Schedule complex electrical tasks during normal hours and avoid excessive overtime.
• Provide supervision and task pacing to reduce cognitive load.
• Stop work if concentration, vision, or decision-making is impaired.
• Ensure the apprentice understands the obligation to report any condition that could affect safe performance.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Moderate	Medium

6. Incorrect selection or use of tools and test equipment, including non-insulated tools or unverified meters.

Potential Consequences: Tool contact with live parts may cause shock, short circuits, arc flash, burns, or equipment damage.

Affected Persons: Electrical apprentice, supervising electrician, and nearby workers.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

• Eliminate use of unsuitable tools by specifying task-approved insulated tools and properly rated test equipment.
• Substitute damaged or generic tools with insulated, electrically rated alternatives.
• Use engineering controls such as insulated barriers and test boxes where appropriate.
• Implement administrative controls for pre-use inspection, calibration checks, and tool control.
• Require the apprentice to use only tools authorised for the task and to stop work if damage is found.
• Provide PPE appropriate to the electrical task, including eye and hand protection.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Major	Medium

7. Poor housekeeping, clutter, trailing leads, or restricted access around electrical work areas.

Potential Consequences: Trips, falls, dropped tools, accidental contact with live parts, and delayed emergency response may occur.

Affected Persons: Electrical apprentice, supervising electrician, other workers, visitors, and emergency responders.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Likely	Moderate	High

Control Measures

• Eliminate unnecessary materials from the work area before starting.
• Use engineering controls such as cable management, barriers, and designated storage for tools and parts.
• Apply administrative controls including housekeeping standards, access control, and defined work zones.
• Maintain clear escape routes and keep panels, disconnects, and exits unobstructed.
• Require slip-resistant and electrically appropriate footwear where the task demands it.
• Supervisors should inspect the work area before energisation or handover.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Minor	Low

8. Inadequate communication and supervision during colour-critical or energised electrical tasks.

Potential Consequences: Misunderstood instructions, missed isolation points, incorrect phase selection, or delayed intervention may lead to injury or equipment damage.

Affected Persons: Electrical apprentice, supervising electrician, and other workers in the vicinity.

Initial Risk Assessment

Likelihood	Severity	Risk Rating
Possible	Major	High

Control Measures

• Eliminate ambiguity by using written instructions, labelled diagrams, and clear task sequencing.
• Use administrative controls such as pre-task briefings, hold points, read-back communication, and confirmation of critical steps.
• Assign a competent supervisor to remain available and, where necessary, in direct line of sight.
• Use standardised terminology rather than colour-only references.
• Require the apprentice to repeat back critical instructions before proceeding.
• Escalate any uncertainty immediately and stop work until clarified.

Residual Risk Assessment

Likelihood	Severity	Risk Rating
Unlikely	Moderate	Medium

5. General Control Measures

• Implement a formal safe system of work for electrical tasks, including isolation, lockout/tagout, verification of de-energisation, and documented job planning.

No electrical task should proceed until the work method, isolation points, test requirements, and emergency arrangements are understood and confirmed by the supervisor.

• Use reasonable adjustments for partial colour blindness so that colour is never the sole means of identification.

Provide alphanumeric labels, phase markers, diagrams, legends, and supervised verification for any task involving colour-coded wiring or components.

• Maintain a competency-based supervision model for apprentices.

Limit the apprentice to tasks within verified competence, require direct supervision for higher-risk work, and use sign-off for critical steps.

• Complete task-specific PPE hazard assessments before electrical work begins.

Select PPE based on the actual hazards present, including eye, face, hand, head, foot, hearing, and arc-flash protection as required by the task.

• Keep electrical equipment, tools, and test instruments in serviceable condition.

Inspect tools before use, remove damaged items from service, and ensure test equipment is suitable and properly rated for the circuit voltage and duty.

6. Emergency Preparedness

• Establish an electrical emergency response procedure that includes immediate isolation of power where safe to do so, raising the alarm, and contacting emergency services for shock, burn, or arc flash injuries.
• Provide first aid arrangements suitable for electrical incidents, including trained first aiders, burn response supplies, and rapid access to automated external defibrillator support where available.
• Ensure workers know the location and operation of emergency stops, disconnects, and isolation devices, and that access to them remains unobstructed.
• Prepare an arc flash or electrical fire response plan that prioritises evacuation, scene control, and no re-entry until the area is declared safe by a competent person.
• Require incident reporting and preservation of the scene after any electrical shock, near miss, arc flash, or unexpected energisation event.

7. Training Requirements

• Electrical Safety Awareness: Train the apprentice in electrical hazards, shock prevention, arc flash awareness, safe approach distances, and the importance of de-energising equipment before work whenever practicable.
  • Recognising live parts and stored energy
  • Understanding the limits of apprentice authority
  • Knowing when to stop work and escalate concerns
• Colour-Blindness Reasonable Adjustments and Work Methods: Train the apprentice and supervisors on the limitations of colour-only identification and the approved alternative methods used on site, such as labels, diagrams, and verification steps.
  • Never rely on colour alone
  • Use read-back and second-person verification for critical identifications
  • Report any task where colour discrimination creates uncertainty
• Lockout/Tagout and Verification of Isolation: Train the apprentice in hazardous energy control, isolation points, lock application, tag use, and verification of absence of voltage using approved test equipment.
  • Apply locks and tags correctly
  • Test before touch
  • Understand re-energisation controls and handback procedures
• PPE Selection and Use for Electrical Work: Train the apprentice to select, inspect, wear, and maintain PPE appropriate to the task, including eye, face, hand, head, foot, hearing, and arc-rated protection where required.
  • Inspect PPE before each use
  • Replace damaged PPE immediately
  • Match PPE to the hazard assessment
• Supervised Task Execution and Communication: Train the apprentice and supervising electrician in task briefing, hold points, communication protocols, and escalation when uncertainty exists.
  • Use clear, standard terminology
  • Confirm critical steps before proceeding
  • Stop work if instructions are unclear or conditions change

8. Monitoring and Review

Review Frequency: Annually and after any incident, near miss, change in task scope, change in equipment, or change in the apprentice’s fitness for work or vision-related limitations.

Monitoring Type	Frequency	Responsible Party	Description
Regular Inspection	Before each task and at the start of each shift	Supervising electrician or site supervisor	Check the work area, isolation status, tools, labels, access controls, and PPE condition before electrical work begins.
Competency Verification	At induction, after training, and whenever task scope changes	Electrical supervisor or training coordinator	Confirm the apprentice is competent for the assigned task and understands any colour-vision-related adjustments and restrictions.
PPE Inspection	Before each use and after any incident or suspected damage	Individual worker and supervisor	Inspect gloves, face protection, arc-rated clothing, footwear, and eye protection for wear, contamination, or damage.
Work Practice Audit	Monthly or more often for higher-risk work	Supervisor, safety representative, or competent auditor	Observe electrical tasks to verify lockout/tagout compliance, supervision quality, communication, and adherence to safe systems of work.
Incident and Near-Miss Review	After any incident, near miss, or change in equipment/process	Management and safety lead	Review causes, update controls, and confirm whether additional adjustments, training, or supervision are required.

9. Special Circumstances

• Night work or low-light conditions may make colour discrimination more difficult and increase the likelihood of wiring or identification errors; enhanced lighting and additional verification are required.
• Lone work should be avoided for colour-critical or energised electrical tasks because immediate verification and emergency assistance may be unavailable.
• Fatigue, overtime, heat stress, or high workload can reduce concentration and increase the chance of incorrect identification or missed isolation steps.
• Wet weather, condensation, or damp environments increase electrical risk and may also affect visibility of labels, markings, and test equipment.
• Temporary works, shutdowns, and commissioning activities often involve changed wiring arrangements and higher task complexity, requiring extra supervision and pre-job planning.

Approval and Sign-off

This risk assessment has been reviewed and approved by:

Assessor: _________________________ Date: __________

Manager/Supervisor: _________________________ Date: __________

Safety Representative: _________________________ Date: __________

This risk assessment must be reviewed annually and after any incident, near miss, change in task scope, change in equipment, or change in the apprentice’s fitness for work or vision-related limitations. or when significant changes occur.

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