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High-Voltage Switching Risk Assessment

High-Voltage Switching Risk Assessment

  • • 100% Compliant with Australian WHS Acts & Regulations
  • • Fully Editable MS Word & PDF Formats Included
  • • Pre-filled Content – Ready to Deploy Immediately
  • • Customisable – Easily Add Your Logo & Site Details
  • • Includes 2 Years of Free Compliance Updates

High-Voltage Switching Risk Assessment

Product Overview

Identify and control organisational risks associated with High-Voltage Switching through a structured, management-level WHS Risk Management framework that focuses on governance, systems and planning rather than task-by-task procedures. This Risk Assessment supports compliance with the WHS Act, demonstrates executive Due Diligence, and helps protect your business from operational and legal liability arising from high-voltage operations.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • Governance, WHS Duties and Consultation: Assessment of officer due diligence, PCBU obligations, safety leadership, consultation with workers and HSRs, and integration of high-voltage risks into the broader WHS management system.
  • Competency, Authorisation and Training Systems: Management of competency frameworks, authorisation matrices, refresher training, verification of competency and licence requirements for high-voltage switching personnel.
  • Procedures, Work Instructions and Permit Systems: Evaluation of documented switching procedures, work instructions, permit-to-work and access authority systems to ensure consistent and controlled high-voltage operations.
  • Network Design, Engineering Controls and Protection Systems: Assessment of system design, segregation, interlocking, protection relays, fail-safe design principles and engineering controls to minimise arc flash, electrocution and equipment damage.
  • Asset Management, Inspection and Maintenance Systems: Management of inspection regimes, preventive and predictive maintenance, condition monitoring and lifecycle planning for switchgear, cables, transformers and associated HV assets.
  • Planning, Coordination and Operational Control of Switching: Evaluation of planning processes, switching schedules, load transfer strategies, communication protocols and control room coordination to prevent switching errors and unplanned outages.
  • Isolation, Earthing, Access Control and Lockout‑Tagout Systems: Assessment of isolation procedures, earthing practices, access authorities, LOTO systems, signage and barriers to prevent inadvertent energisation and unauthorised entry.
  • Human Factors, Fatigue and Workload Management: Management of staffing levels, shift work, fatigue risks, situational awareness, cognitive load and human error potential in complex switching operations.
  • Emergency Preparedness, Incident Response and Recovery: Evaluation of emergency plans, arc flash and electrocution response, rescue procedures, equipment availability, drills, communication and business continuity arrangements.
  • Contractor Management and External Interfaces: Management of contractor prequalification, induction, supervision, interface with network operators, clients and other PCBUs, and coordination of responsibilities at shared worksites.
  • Documentation, Records, Audit and Continuous Improvement: Assessment of record-keeping, switching logs, training and authorisation records, audit programs, incident investigation processes and continuous improvement mechanisms.

Who is this for?

This Risk Assessment is designed for Business Owners, Electrical Managers, HV Network Operators, Project Managers and Safety Professionals responsible for planning, governing and overseeing High-Voltage Switching operations across their organisation.

Hazards & Risks Covered

Hazard Risk Description
1. Governance, WHS Duties and Consultation
  • • Lack of clear allocation of WHS duties for high-voltage (HV) switching under the WHS Act 2011 leading to gaps in accountability and oversight
  • • Insufficient consultation with workers, Health and Safety Representatives (HSRs) and contractors on HV switching risks and procedures
  • • Inadequate integration of HV electrical safety into the organisation’s WHS management system, policies and risk registers
  • • Failure to monitor compliance with WHS Act 2011, WHS Regulation and relevant electrical safety legislation, codes of practice and Australian Standards
  • • Unclear lines of authority for approving HV switching programs and for stopping work in unsafe conditions
2. Competency, Authorisation and Training Systems
  • • Inadequate verification of competency for HV switching personnel (employees and contractors)
  • • Outdated or inconsistent authorisation processes for HV switching, access permits and isolation controllers
  • • Insufficient training on specific site network configuration, protection schemes and switching procedures
  • • Lack of assessment of non‑technical skills such as communication, supervision and decision‑making under pressure
  • • Inadequate induction for visiting or short‑term contractors involved in HV switching or working near HV assets
3. Procedures, Work Instructions and Permit Systems
  • • Absence of standardised HV switching procedures leading to inconsistent practices across shifts and sites
  • • Outdated or inaccurate switching instructions and single line diagrams causing incorrect isolation or energisation
  • • Ineffective permit‑to‑work and access permit systems that do not align with actual network configuration and hazards
  • • Overly complex or ambiguous documentation resulting in misinterpretation during time‑critical switching
  • • Lack of formal process for managing deviations or changes to switching programs
4. Network Design, Engineering Controls and Protection Systems
  • • Complex or poorly documented HV network design increasing risk of incorrect switching or back‑feed
  • • Inadequate or incorrectly set protection systems leading to failure to clear faults or nuisance tripping during switching
  • • Insufficient physical segregation, interlocking or barriers between live HV components and work areas
  • • Lack of engineering controls to prevent parallel feeds, cross‑coupling or inadvertent energisation
  • • Obsolete or non‑standard equipment with inconsistent operating characteristics and indications
5. Asset Management, Inspection and Maintenance Systems
  • • Degraded or poorly maintained HV switchgear, cables, terminations and earthing systems increasing risk of failure during switching
  • • Lack of systematic inspection schedules leading to undetected defects such as partial discharge, insulation breakdown or corrosion
  • • Inadequate testing and maintenance of protection systems, interlocks and remote control equipment
  • • No prioritisation or tracking of HV defects, resulting in high‑risk items remaining in service during switching operations
  • • Uncontrolled use of temporary repairs or bypasses that alter switching risk without appropriate assessment
6. Planning, Coordination and Operational Control of Switching
  • • Inadequate planning of HV switching leading to time pressure, confusion and error
  • • Poor coordination between system control, field operators, contractors and affected facilities
  • • Switching carried out under emergency or unplanned conditions without appropriate risk assessment
  • • Simultaneous operations or unrelated work activities creating conflicting priorities and distractions
  • • Communication failures (e.g. unclear instructions, radio interference, language barriers) during switching coordination
7. Isolation, Earthing, Access Control and Lockout‑Tagout Systems
  • • Inadequate system controls to ensure plant is de‑energised, isolated and earthed before work commences
  • • Unclear demarcation between operational switching controls and work‑party access controls
  • • Failure to track multiple isolations and earths across complex networks, leading to unsafe removal or re‑energisation
  • • Inconsistent lockout‑tagout practices across departments or contractors
  • • Insufficient physical and administrative barriers to prevent unauthorised access to HV apparatus
8. Human Factors, Fatigue and Workload Management
  • • HV switching performed under fatigue, stress or reduced alertness (e.g. night shifts, long shifts, call‑outs)
  • • Cognitive overload due to complex procedures, time pressure or multiple concurrent tasks
  • • Inadequate supervision or mentoring of newly authorised or infrequent switchers
  • • Over‑reliance on a small number of key individuals leading to burnout and single‑point‑of‑failure risk
  • • Work environments (noise, lighting, heat, crowding) that degrade attention and decision‑making
9. Emergency Preparedness, Incident Response and Recovery
  • • Lack of structured response plans for HV electrical incidents such as arc‑flash, equipment failure, electrocution or loss of supply
  • • Inadequate coordination with emergency services and network operators during HV emergencies
  • • Insufficient training and drills for workers on how to respond to HV incidents, including safe approach distances and rescue protocols
  • • Delays or errors in isolating faulted equipment during an emergency due to unclear responsibilities or information
  • • Poor post‑incident management leading to recurrence of similar events
10. Contractor Management and Interface with External Parties
  • • Contractors performing HV switching without alignment to the organisation’s WHS and HV standards
  • • Unclear division of responsibilities and control between multiple PCBUs (e.g. client, principal contractor, network operator) under the WHS Act 2011
  • • Inconsistent documentation, permits and procedures between different organisations on shared HV assets
  • • Inadequate pre‑qualification and monitoring of contractor competence and performance in HV switching
  • • Poor communication of operational changes, system status and restrictions to external parties
11. Documentation, Records, Audit and Continuous Improvement
  • • Incomplete or inaccurate records of switching operations, permits, incidents and maintenance
  • • Lack of systematic auditing of HV safety systems leading to undetected non‑conformances
  • • Inability to demonstrate compliance with WHS Act 2011 due diligence and record‑keeping requirements
  • • Lessons from incidents and near misses not translated into system improvements
  • • Obsolete or uncontrolled documentation used as the basis for switching decisions

Need to add specific hazards for your workplace?

Don't worry if a specific hazard isn't listed above. Once you purchase, simply log in to your Client Portal and add your own custom hazards at no extra cost. We take care of the hard work—creating the risk ratings and control measures for free—to ensure your document is compliant within minutes.

Legislation & References

This document was researched and developed to align with:

  • Work Health and Safety Act 2011
  • Work Health and Safety Regulations 2017
  • Safe Work Australia – Managing Electrical Risks in the Workplace Code of Practice: Guidance on managing electrical risks, including high-voltage systems.
  • Safe Work Australia – How to Manage Work Health and Safety Risks Code of Practice: Framework for identifying hazards, assessing and controlling risks.
  • AS/NZS ISO 31000:2018: Risk management — Guidelines for establishing, implementing and continually improving risk management processes.
  • AS/NZS 3000:2018 (Wiring Rules): Electrical installations — Requirements relevant to design, selection and verification of electrical equipment and systems.
  • AS 2067:2016: Substations and high-voltage installations exceeding 1 kV a.c. — Safety and design requirements for HV installations.
  • AS/NZS 4836:2011: Safe working on or near low-voltage and extra-low-voltage electrical installations and equipment (used as a reference for safe electrical work principles).
  • AS/NZS ISO 45001:2018: Occupational health and safety management systems — Requirements with guidance for use.
Standard Risk Assessment Features (Click to Expand)
  • Comprehensive hazard identification for all activities
  • Risk rating matrix with likelihood and consequence analysis
  • Existing control measures evaluation
  • Residual risk assessment after controls
  • Hierarchy of controls recommendations
  • Action priority rankings
  • Review and monitoring requirements
  • Consultation and communication records
  • Legal compliance references
  • Sign-off and approval sections

$79.5

Safe Work Australia Aligned