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Live Electrical Work, Testing and Fault Finding Risk Assessment

Live Electrical Work, Testing and Fault Finding Risk Assessment

  • • 100% Compliant with Australian WHS Acts & Regulations
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Live Electrical Work, Testing and Fault Finding Risk Assessment

Product Overview

Identify and control organisational risks associated with Live Electrical Work, Testing and Fault Finding through a structured, management-level Risk Assessment focused on governance, systems and planning. This document supports executive Due Diligence, alignment with the WHS Act, and reduction of organisational and operational liability when authorising and overseeing live electrical activities.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • Governance, Legal Compliance and Authorisation of Live Work: Assessment of policies, authorisation processes and criteria for when live work is permitted, including legal thresholds, risk justifications and senior management approval protocols.
  • Electrical Competency, Licensing and Training Systems: Management of trade licensing, competency matrices, refresher training, high-risk skills validation and supervision arrangements for personnel performing or supervising live electrical work.
  • Planning, Risk Assessment and Job Authorisation for Live Electrical Tasks: Systems for pre-task planning, formal risk assessments, job safety planning, live work permits and escalation pathways for complex or high-energy installations.
  • Design, Engineering Controls and Equipment Selection: Integration of inherently safer design, fault current limitation, segregation, barriers, IP ratings and selection of compliant switchgear, enclosures and protective devices to minimise live work exposure.
  • Isolation, Test-For-Dead and Lockout/Tagout Systems: Governance of isolation procedures, verification of de-energisation, lockout/tagout hardware standards, access to isolation points and auditing of isolation practices.
  • Arc Flash and Short-Circuit Energy Management: Assessment of incident energy levels, arc flash labelling, approach boundaries, protective device coordination and organisational controls to reduce arc flash likelihood and consequence.
  • Static Electricity and Induced Voltage Management: Protocols for bonding, earthing, discharge procedures and verification of induced or back-feed voltages in complex or multi-source electrical systems.
  • Access Control, Permits and Work Area Management: Management of exclusion zones, barricading, signage, access keys, permit-to-work systems and coordination of multiple work groups around live electrical apparatus.
  • Tools, Test Instruments and PPE Management Systems: Controls for selection, inspection, calibration and replacement of insulated tools, test instruments, voltage detectors and arc-rated PPE, including storage, issue and training in correct use.
  • Contractor Management and Third-Party Interface: Assessment of contractor pre-qualification, competency verification, scope definition, supervision, interface with network operators and alignment of procedures for live work.
  • Fatigue, Work Scheduling and Emergency Response Readiness: Management of shift length, after-hours call-outs, staffing levels, first aid, rescue procedures, emergency equipment availability and coordination with emergency services.
  • Documentation, Labelling, Drawings and Information Management: Systems for maintaining accurate single line diagrams, labels, circuit identification, switching sheets and controlled documentation for electrical installations.
  • Change Management, Commissioning and Legacy System Risk Control: Governance of modifications, temporary supplies, commissioning activities, decommissioning and the management of undocumented or legacy electrical systems.
  • Monitoring, Reporting, Consultation and Continuous Improvement: Processes for incident and near-miss reporting, inspections, audits, consultation with workers and HSRs, and periodic review of live work practices and controls.

Who is this for?

This Risk Assessment is designed for Business Owners, Electrical Managers, Project Managers and Safety Officers responsible for planning, authorising and overseeing live electrical work, testing and fault finding activities across their operations.

Hazards & Risks Covered

Hazard Risk Description
1. Governance, Legal Compliance and Authorisation of Live Work
  • • Work on or near exposed energised electrical parts without a documented justification contrary to WHS Act 2011 and WHS Regulation requirements
  • • Lack of an Electrical Safety Management Plan and live work policy aligned with current Australian Standards (e.g. AS/NZS 4836, AS/NZS 3000, AS 2067)
  • • Inadequate process for authorising live electrical work (no formal risk assessment, no documented reasons why de-energisation is not reasonably practicable)
  • • Unclear roles, responsibilities and accountability for Person Conducting a Business or Undertaking (PCBU), officers, supervisors and electrical workers
  • • Failure to maintain up-to-date knowledge of changes in WHS legislation, electrical safety legislation and network operator requirements
  • • Inadequate document control leading to use of obsolete procedures, drawings, single line diagrams and switching programs
  • • No clear criteria for prohibiting live work in high-risk situations (e.g. arc flash energy above PPE rating, deteriorated switchgear, unknown installations)
2. Electrical Competency, Licensing and Training Systems
  • • Unlicensed or inadequately licensed persons performing live electrical work, testing or fault finding
  • • Electricians and electrical engineers not trained in live work techniques, arc flash hazard assessment, high-voltage switching or low voltage rescue as relevant
  • • Inadequate verification of competency for personnel accessing high-voltage switchyards, high tension circuits and transformer installations
  • • Lack of current CPR and low voltage rescue training for personnel who may need to respond to electric shock incidents
  • • No formal assessment of workers’ competency to interpret complex or legacy electrical drawings and identify live electrical wire risks in old systems
  • • Training records not maintained, out of date or not linked to authorisation to perform or supervise live work
  • • Insufficient training for supervisors and managers in electrical risk management, including inability to assess risk from electric shock and arc flash energy
3. Planning, Risk Assessment and Job Authorisation for Live Electrical Tasks
  • • Commencing work on live circuits without a documented task-specific risk assessment focused on system and environmental conditions
  • • Inadequate planning for access to live switchboards, high-voltage switchyards and overhead lines under varying load and weather conditions
  • • Inability to assess risk from electric shock, arc flash and static discharge due to missing or inaccurate fault level and protection data
  • • Live fault finding undertaken under time pressure, leading to shortcuts in testing for presence of electricity and verifying isolation boundaries
  • • No formal process for assessing arc flash hazard categories and incident energy for switchgear, transformers and high tension circuits
  • • Failure to consider interaction between simultaneous tasks (e.g. testing, switching, and mechanical work in the same switchyard or substation)
  • • Poor planning for accessing old or unknown electrical systems where insulation condition, earthing integrity or wiring routes are not documented
4. Design, Engineering Controls and Equipment Selection
  • • Legacy electrical installations not designed for safe access, testing points or arc flash containment
  • • Switchboards and high-voltage equipment without adequate segregation, shutters or barriers between live parts and operators
  • • Lack of engineered test points or voltage detection points leading to unsafe improvisation when testing for presence of electricity
  • • Inadequate switchgear ratings for available fault current, increasing arc flashing risk during switching and fault clearing
  • • Poorly designed earthing grids, bonding systems and static electricity management arrangements in switchyards and plant areas
  • • Use of non-insulated or inappropriate tools and test instruments for the voltage and fault levels encountered
  • • Inadequate mechanical protection, routing or insulation of overhead power lines and exposed live wiring in areas of public or vehicle access
5. Isolation, Test-For-Dead and Lockout/Tagout Systems
  • • Failure of isolation systems resulting in unexpected energisation during testing or fault finding
  • • Reliance on administrative controls without robust lockout/tagout (LOTO) procedures and hardware
  • • Inadequate processes for testing for presence of electricity and confirming circuits are de-energised before commencing work
  • • Multiple energy sources (e.g. backfeed from generators, UPS, solar, capacitors, stored static electricity) not identified or controlled in isolation plans
  • • Unclear demarcation between energised and de-energised zones within switchboards and switchyards
  • • Absence of independent verification or sign-off of isolations for high-voltage or complex systems
6. Arc Flash and Short-Circuit Energy Management
  • • High incident energy levels leading to severe burns, blast injuries and fatality during switching or fault conditions
  • • Lack of arc flash studies, labelling and defined approach boundaries for switchgear and high-voltage equipment
  • • Inadequate configuration of protection systems resulting in extended fault clearing times and greater arc flash energy
  • • Working on or near live wiring and busbars in panels not designed for exposure during operation or testing
  • • No system for controlling access to high-risk arc flash zones during energisation, fault clearing and testing
  • • Improvised testing methods for troubleshooting short-circuit issues, bypassing interlocks or defeating covers
7. Static Electricity and Induced Voltage Management
  • • Build-up of static electricity on personnel, equipment or structures leading to ignition of flammable atmospheres or shock to workers
  • • Induced voltages on de-energised conductors located near energised high-voltage lines or busbars
  • • Inadequate bonding and earthing practices during work on overhead lines, transformers and switchyards
  • • No consistent method for discharging static electricity prior to handling sensitive circuits or flammable liquids
  • • Insufficient awareness of step and touch potentials in high-voltage yards and near earthing systems during fault conditions
  • • Failure to identify and manage static risks when working with transformer oil and other insulating fluids
8. Access Control, Permits and Work Area Management
  • • Unauthorised entry into live electrical areas such as switchyards, substations, live switchboard rooms and overhead line work zones
  • • Poorly controlled work fronts leading to inadvertent approach to live circuits, exposed live wiring or high-voltage equipment
  • • Simultaneous operations (SIMOPS) involving cranes, vehicles, mechanical trades and electrical work without coordination, creating contact or flashover risks
  • • Inadequate barricading and signage around live work areas, particularly during high-voltage switching or fault investigations
  • • Inadequate management of visitors, contractors and non-electrical personnel in or near electrical zones
9. Tools, Test Instruments and PPE Management Systems
  • • Use of damaged, uncalibrated or inappropriate test instruments leading to incorrect readings and exposure to live electrics
  • • Insulating gloves, mats, rescue kits and arc-rated PPE not inspected, tested or replaced in accordance with standards
  • • Lack of a system to ensure test leads, probes and accessories are rated for required voltage and fault categories
  • • Non-standard or home-made equipment used for testing, temporary connections or fault finding on energised circuits
  • • Inadequate availability and management of low voltage rescue kits, insulated operating sticks and rescue devices near live work locations
10. Contractor Management and Third-Party Interface
  • • Contract electrical workers performing live work without alignment to the PCBU’s electrical safety systems and procedures
  • • Inconsistent standards between principal contractor, subcontractors and asset owners regarding high-voltage access, overhead work and live testing
  • • Inadequate verification of contractor competency, licences and training for live work, high-voltage switching and low voltage rescue
  • • Poor communication and coordination when multiple organisations are involved in testing, commissioning or fault response
  • • Contractors modifying or bypassing installed safety systems, interlocks or protective devices during troubleshooting short-circuit issues
11. Fatigue, Work Scheduling and Emergency Response Readiness
  • • Fault response and after-hours call-outs leading to fatigue, reduced concentration and errors during live testing or switching
  • • Insufficient staffing levels resulting in lone work or inadequate supervision for high-risk tasks such as high-voltage switching or low voltage rescue operations
  • • Lack of structured emergency response plans for electric shock, arc flash injuries and switchyard incidents
  • • Inadequate availability or maintenance of emergency equipment such as defibrillators, first aid kits, eye wash and fire-fighting equipment near electrical installations
  • • Poorly rehearsed emergency procedures leading to delays in de-energisation, rescue and medical treatment
12. Documentation, Labelling, Drawings and Information Management
  • • Incorrect or outdated single line diagrams, circuit schedules and labels leading to misidentification of live conductors and circuits
  • • Inconsistent or missing labelling on isolation points, earth points, overhead lines and high-voltage equipment
  • • Lack of documented history of modifications, repairs and fault conditions in older electrical systems, impairing risk assessment accuracy
  • • Information on arc flash studies, fault levels and protection settings not readily accessible to field personnel
  • • Poor record-keeping for test results, electrical safety checks and inspections of switchboards, transformers and overhead lines
13. Change Management, Commissioning and Legacy System Risk Control
  • • Commissioning and testing of new or modified installations without structured change management or review of new live work risks
  • • Integration of new equipment into old electrical systems without reassessment of fault levels, protection settings and arc flash hazards
  • • Unknown condition of legacy cabling, switchboards and overhead lines, including degraded insulation, corrosion and undocumented alterations
  • • Inadequate procedures for inspecting and preventing electrocution when inspecting old electrical systems with potential exposed wires and hazardous insulation
  • • Failure to update training, procedures and emergency plans following significant system changes
14. Monitoring, Reporting, Consultation and Continuous Improvement
  • • Under-reporting of electrical incidents, near misses and abnormal conditions such as nuisance tripping, overheating and partial discharges
  • • Lack of worker consultation and feedback on live work procedures, leading to impractical controls or workarounds
  • • Failure to analyse incident data to identify systemic weaknesses in electrical safety management
  • • No defined key performance indicators (KPIs) for electrical safety performance and compliance with live work controls
  • • Limited sharing of learnings from electrical incidents across different sites or business units

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
  • AS/NZS ISO 31000:2018: Risk management — Guidelines
  • AS/NZS 3000:2018 (Wiring Rules): Electrical installations — Requirements for design, construction and verification of electrical systems.
  • AS/NZS 4836:2011: Safe working on or near low-voltage electrical installations and equipment.
  • AS 2067:2016: Substations and high voltage installations exceeding 1 kV a.c. — Safety and design considerations.
  • AS/NZS 3760:2022: In-service safety inspection and testing of electrical equipment.
  • AS/NZS 3012:2019: Electrical installations — Construction and demolition sites.
  • AS/NZS 61439 series: Low-voltage switchgear and controlgear assemblies — Requirements for design and verification of switchboards.
  • AS 1319:1994: Safety signs for the occupational environment — Requirements for safety and information signage.
  • AS/NZS 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

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