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Substation Construction Risk Assessment

Substation Construction 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

Substation Construction Risk Assessment

Product Overview

Identify and control organisational risks associated with Substation Construction at a management and systems level, with a structured focus on governance, planning, and control measures across the entire project lifecycle. This Risk Assessment supports executive Due Diligence, alignment with the WHS Act, and the reduction of operational liability for your business.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • WHS Governance, Duties and Consultation: Assessment of officer due diligence, PCBU obligations, consultation arrangements, and integration of WHS responsibilities into organisational structures and project governance.
  • Design Management and Engineering Controls: Management of substation design risk reviews, constructability, electrical segregation, earthing, and engineered controls to eliminate or minimise risks before construction commences.
  • Contractor Management and Procurement: Evaluation of procurement processes, prequalification, WHS criteria in contracts, and oversight of principal contractor and subcontractor performance throughout the build.
  • Competency, Licensing and Training Systems: Controls for verifying electrical licences, high-risk work licences, competency for plant operation, and ongoing training and induction programs specific to substation construction.
  • Planning, Scheduling and Interface Management: Assessment of construction staging, work sequencing, outages, and coordination between civil, electrical, commissioning and network operations to prevent clashes and unsafe interfaces.
  • Electrical Safety and Isolation Management Systems: Protocols for high-voltage safety, lock-out/tag-out, access permits, testing and proving de-energised, and management of induced voltages and step/touch potentials.
  • Plant, Mobile Equipment and Lifting Management: Management of cranes, EWPs, elevating work platforms, earthmoving plant and lifting operations in and around live yards, overhead conductors and underground services.
  • Site Access, Security and Public Interface: Controls for site establishment, fencing, traffic management, visitor access, public exclusion zones, and coordination with adjacent roadways, footpaths and neighbouring properties.
  • Health, Wellbeing and Fatigue Management: Assessment of extended shifts, remote or regional work, environmental exposure, psychosocial risks, and systems to manage fatigue, mental health and worker wellbeing.
  • Documentation, Information and Change Control: Management of drawings, specifications, safe work procedures, permits, and formal change control to ensure current information is used on site at all times.
  • Incident Reporting, Investigation and Corrective Actions: Systems for capturing near misses, notifiable incidents and non-conformances, with structured investigation, root cause analysis and verification of corrective actions.
  • Emergency Preparedness and Response: Planning for electrical incidents, arc flash, fire, medical emergencies, environmental events and site evacuation, including drills, equipment and liaison with emergency services.

Who is this for?

This Risk Assessment is designed for Business Owners, Network Operators, Project Directors, Construction Managers and Safety Professionals responsible for planning, procuring and overseeing Substation Construction projects.

Hazards & Risks Covered

Hazard Risk Description
1. WHS Governance, Duties and Consultation
  • • Lack of clear allocation of WHS duties between PCBU, principal contractor, electrical network operator and subcontractors
  • • Inadequate consultation and coordination of activities under WHS Act 2011 leading to unmanaged interface risks between civil, electrical and commissioning teams
  • • Insufficient officer due diligence in monitoring safety performance, resourcing and compliance for substation construction
  • • Poor worker participation mechanisms resulting in under‑reporting of hazards, near misses and health concerns
  • • Inadequate review of WHS management system when scope, design or staging of substation works changes
2. Design Management and Engineering Controls
  • • Design not meeting relevant Australian Standards, Service Rules and WHS legislation for electrical and structural safety
  • • Inadequate consideration of constructability, maintainability and de‑energisation in substation layout and design, leading to excessive manual handling or work at height
  • • Insufficient segregation of high‑voltage equipment from work areas and public interfaces during construction and future operation
  • • Design changes during construction not subjected to formal WHS risk assessment and engineering review
  • • Omission of permanent fall protection, safe access paths and lifting points on transformers, switchgear and structures
  • • Inadequate design consideration for safe earthing, step and touch potentials, and induced voltages during staged construction
3. Contractor Management and Procurement
  • • Engagement of contractors without verification of competency, licences and high‑risk work capabilities for substation environments
  • • Inadequate prequalification of suppliers and subcontractors leading to incompatible safety systems or poor WHS performance
  • • Contracts that incentivise program acceleration or cost‑cutting without corresponding WHS safeguards
  • • Inconsistent safety expectations and procedures between principal contractor, electrical network operator and subcontractors
  • • Use of plant, equipment and materials that do not comply with Australian standards or project specifications
4. Competency, Licensing and Training Systems
  • • Workers and supervisors lacking specific substation, HV and switching awareness training
  • • Inadequate verification of licences, high‑risk work tickets and electrical authorisations for critical tasks
  • • Supervisors not competent in risk management, safe work method statement (SWMS) implementation and permit‑to‑work coordination
  • • Insufficient training in emergency response, including electrical contact, arc flash, fire and rescue from height
  • • Failure to provide induction and refresher training for changes in design, plant, procedures or hazards
5. Planning, Scheduling and Interface Management
  • • Compressed construction schedules increasing pressure to bypass safety procedures or overlap incompatible activities
  • • Poor coordination of civil, structural, electrical and commissioning works leading to congestion and conflicting tasks in limited substation footprint
  • • Inadequate planning for staged energisation, backfeeding and proximity to live infrastructure
  • • Insufficient integration of third‑party works (utilities, landowners, public roads) into construction planning
  • • Work at interfaces between existing live substations and new builds not subject to enhanced planning and risk review
6. Electrical Safety and Isolation Management Systems
  • • Uncontrolled exposure to live or induced high‑voltage and low‑voltage equipment due to inadequate isolation systems
  • • Confusion over operational control between construction organisation and network operator during staged energisation
  • • Poor management of access permits leading to unauthorised entry into energised or restricted areas
  • • Inadequate procedures for testing, earthing and proving de‑energised status of electrical equipment
  • • Failure to manage induced voltages and transferred potentials from adjacent live infrastructure during construction
7. Plant, Mobile Equipment and Lifting Management
  • • Inadequate systems for selection, inspection and maintenance of cranes, EWP, telehandlers and earthmoving plant used within constrained substation sites
  • • Poor control over plant movement in proximity to underground services, overhead lines, structures and fencing
  • • Failure to manage lifting operations of transformers, switchgear and steel under a consistent lifting management framework
  • • Inadequate verification of plant operator competencies and high‑risk work licences
  • • Insufficient controls for interaction between mobile plant, pedestrians and fixed assets in the substation
8. Site Access, Security and Public Interface
  • • Unauthorised access by public, visitors or uninducted workers into construction and high‑voltage risk areas
  • • Poor coordination between construction site security and operational substation security, leading to gaps in control
  • • Inadequate management of interfaces with public roads, footpaths and neighbouring properties during deliveries and heavy lifts
  • • Failure to control after‑hours works and lone work within a partially energised substation
  • • Insufficient visitor management and briefing processes
9. Health, Wellbeing and Fatigue Management
  • • Extended working hours, shift work and travel contributing to fatigue and impaired decision‑making
  • • Exposure to extreme temperatures, UV, noise and other environmental stressors impacting worker health and concentration
  • • Inadequate systems for managing psychosocial risks including remote work, high workload, conflict between contractors and job insecurity
  • • Insufficient health monitoring for workers exposed to hazardous substances such as silica dust, welding fumes or diesel exhaust
  • • Poor management of fitness for work, including alcohol and other drugs
10. Documentation, Information and Change Control
  • • Use of outdated drawings, specifications, switching sheets or procedures on site
  • • Poor version control leading to conflicting instructions between design, construction and commissioning teams
  • • Inadequate communication of changes to methods, designs or controls to supervisors and workers
  • • Failure to update risk assessments and control measures following incidents, audits or engineering changes
11. Incident Reporting, Investigation and Corrective Actions
  • • Under‑reporting of incidents, near misses and unsafe conditions due to fear of blame or complex processes
  • • Superficial investigations that do not identify root causes or systemic failings
  • • Corrective actions not tracked to completion, resulting in repeated events
  • • Failure to notify regulators and client organisations of notifiable incidents in accordance with WHS Act 2011
12. Emergency Preparedness and Response
  • • Inadequate planning for electrical contact, arc flash, fire, explosion, gas release or structural collapse events during substation construction
  • • Poor coordination with local emergency services regarding site access, isolation points and specific substation hazards
  • • Emergency equipment (first aid, fire extinguishers, rescue kits) not suitable for electrical environments or not maintained
  • • Workers and supervisors unfamiliar with emergency roles, evacuation routes and communication protocols

Need to add specific hazards for your workplace?

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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
  • Electrical Safety Act and Regulations (Jurisdictional): Overarching legislative framework for electrical safety in construction and operation of electrical installations and networks.
  • AS/NZS 3000:2018 (Wiring Rules): Electrical installations — Requirements for the design, construction and verification of electrical systems.
  • AS 2067:2016: Substations and high voltage installations exceeding 1 kV a.c. — Safety and design requirements for high-voltage substations.
  • AS/NZS 4836:2011: Safe working on or near low-voltage electrical installations and equipment.
  • AS/NZS ISO 45001:2018: Occupational health and safety management systems — Requirements with guidance for use.
  • Safe Work Australia Codes of Practice: Including “Construction Work”, “Managing Electrical Risks in the Workplace”, “Managing the Risk of Plant in the Workplace”, and “Work Health and Safety Consultation, Cooperation and Coordination”.
  • AS 3745:2010 (Incorporating Amendments): Planning for emergencies in facilities — Requirements for emergency plans and response arrangements.
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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