EV Fast Charger DC Installation SWMS
Commercial DC fast charger installation — 50-350 kW units. DC isolation, mass concrete pad foundation, traffic management at servo or commercial sites.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Commercial DC fast charger installations involve high-energy electrical work at 50-350 kW capacity, requiring connection to three-phase mains supply, installation of DC isolation equipment, mass concrete pad foundations, and integration with site traffic management systems. This work is typically carried out at service stations, commercial car parks, fleet depots and highway rest areas where public access, live underground services and operating vehicle traffic create a complex risk environment. The combination of high-voltage AC supply, stored DC energy in charger capacitor banks, civil works and energised commissioning makes this one of the higher-risk electrical contracting activities in the renewable energy sector.
Under the model Work Health and Safety Act 2011 and WHS Regulation 2025, a Person Conducting a Business or Undertaking (PCBU) must prepare a Safe Work Method Statement before any High Risk Construction Work commences. DC fast charger installations routinely trigger multiple HRCW categories under Regulation 291, including work on or near energised electrical installations and the use of powered mobile plant for delivery and lifting of charger cabinets that can exceed 1,200 kg.
This SWMS has been prepared to meet the requirements of WHS Regulation 2025 sections 299-303, AS/NZS 3000:2018 (Wiring Rules), AS/NZS 3012:2019 for construction wiring, and AS/NZS 5139:2019 where battery-buffered chargers are installed. It also addresses the Code of Practice for Managing Electrical Risks in the Workplace and the Code of Practice for Construction Work.
Hazards identified
10 hazards covered, sorted by priority.
Fatal burns, blast injury, blindness from UV exposure; recorded incident energies above 8 cal/cm² are common at charger DC links
Electrocution, cardiac arrest, severe burns
Electric shock or arc burn even when upstream supply is locked out — capacitors retain charge for several minutes
Electrocution, explosion, asphyxiation, major service disruption
Fatal crush injury, fractures, fatality from dropped load
Fatal pedestrian impact, serious injury
Acute back injury, crush injuries to hands and feet, musculoskeletal disorder
Chemical burns (cement burns), dermatitis, respiratory irritation
Trench collapse, oxygen deficiency, restricted egress in emergency
Heat stress, heat stroke, dehydration, reduced concentration leading to electrical error
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Conduct Dial Before You Dig search and on-site service location with EMF/GPR scanning before any excavation; pothole all detected services by hand to confirm depth and alignment
- 2Apply full Lockout-Tagout (LOTO) procedure on the upstream AC supply in accordance with AS/NZS 4836:2023; verify dead with a tested two-pole voltage indicator before any cable termination
- 3After AC isolation, wait minimum capacitor discharge time specified by manufacturer (typically 5 minutes for 350 kW units), then verify zero DC voltage on the DC bus with a Cat IV-rated meter before opening the DC compartment
- 4Establish an arc flash boundary and require workers within the boundary to wear PPE rated to the calculated incident energy (minimum Category 2, 8 cal/cm² for typical DC fast charger work), including arc-rated balaclava, face shield and gloves
- 5Use only licensed electrical workers (A-grade or equivalent state licence) for all energised work; restricted electrical licence holders must not perform DC commissioning
- 6Implement a documented Traffic Management Plan compliant with AS 1742.3 for forecourt sites: physical barriers (water-filled or concrete), exclusion zones, traffic controllers where vehicle movements continue during works
- 7Engineered lift plan for charger placement: licensed crane operator (HRWL CN/CO), certified lifting gear with current tags, exclusion zone enforced, dogman/rigger with HRWL DG or RB licence
- 8Trench shoring or battering to AS 5100 / Excavation Code of Practice for any excavation deeper than 1.5 m; no entry into unshored trenches
- 9PPE matrix: AS/NZS 2210.3 safety boots, AS/NZS 1801 hard hat, AS/NZS 1337 eye protection, AS/NZS 2161 electrical/chemical gloves, hi-vis to AS/NZS 4602.1, arc-rated outerwear during energised work
- 10Heat stress management plan with mandatory rest cycles, electrolyte hydration, and work cessation thresholds based on WBGT readings above 30°C
- 11Pre-start verification of RCD protection on all site power tools per AS/NZS 3012; quarterly test-and-tag register maintained
- 12Issue Permit to Work for energised commissioning, signed off by the Electrical Safety Officer, with a competent observer present during all live testing
Applicable Codes of Practice
Mandatory standard for installation, isolation, earthing and verification of the AC supply to the charger and the consumer's mains
Governs site supply, RCD protection and inspection regime during the construction phase of the installation
Applies to battery-buffered DC fast chargers and any on-site BESS integrated with the charging infrastructure
Defines competency, isolation, testing for dead and arc flash control measures referenced under WHS Regulation 2025 Schedule for electrical work
Required for design of TMP at service station forecourts and roadside commercial sites where public vehicle interaction occurs
Approved code under Section 274 of the WHS Act; admissible in proceedings under Section 26A regarding what is reasonably practicable
Defines HRCW, principal contractor duties and SWMS content requirements applicable to this installation
Required reference for pad foundation excavation, shoring and underground service strike prevention
High-Risk Construction Work triggered
Connection of the charger to live 415 V three-phase mains and commissioning of the 400-1000 V DC bus involves work on energised electrical installations as defined in WHS Regulation 2025 r.291(1)(k). Even with upstream isolation, capacitor-stored energy in the DC link constitutes an energised service until verified discharged
DC fast charger cabinets typically weigh 600-1,500 kg and require placement using mobile cranes, HIAB-equipped trucks or telehandlers. The use of this powered mobile plant on a construction site triggers HRCW under r.291(1)(o)
Service station forecourts and commercial fuel sites continue to operate with public vehicle movements during installation. Workers operating in this environment are subject to HRCW r.291(1) covering work in areas with traffic movement other than in a road-related area
Because this work involves multiple HRCW categories, WHS Regulation 2025 sections 299-303 require that a SWMS be prepared before work starts, must be available for inspection by the regulator, must be reviewed if circumstances change, and must be retained for at least two years (or for the duration of an investigation if a notifiable incident occurs). Failure to have a compliant SWMS in place is a Category 3 offence carrying penalties up to $14,375 for an individual PCBU and $71,875 for a body corporate, with higher Category 1 and 2 penalties applying where the failure exposes a worker to risk of death or serious injury.
Who this is for
- →Electrical contractors delivering EV charging infrastructure rollouts for fuel retailers, fleet operators or local councils
- →Renewable energy and EV charging EPC contractors managing multi-site installation programs
- →Principal contractors coordinating civil, electrical and commissioning trades on charger installation projects
- →A-grade licensed electricians and project supervisors performing DC charger commissioning
- →WHS managers and safety advisors in the renewables and electrical sectors
- →Site managers at service stations, shopping centres and commercial properties hosting EV charger installations
What you receive
- ✓Fully editable Microsoft Word (DOCX) SWMS template — pre-populated and ready to customise to your project
- ✓State-specific legislation schedule covering NSW, VIC, QLD, WA, SA, TAS, ACT and NT WHS/OHS variations
- ✓Hazard register with all 10 identified hazards, consequences and risk ratings
- ✓Worker sign-on register for SWMS acknowledgement and toolbox talk records
- ✓Pre-start daily inspection checklist for energised electrical work
- ✓Lockout-Tagout permit template aligned with AS/NZS 4836:2023
- ✓Arc flash boundary and PPE selection guide
- ✓Editable Traffic Management Plan template for forecourt installations
- ✓PDF reference copy and revision control sheet
Worked example
A national fuel retailer engages an electrical contractor to install four 150 kW DC fast chargers at a regional service station that remains trading throughout the works. The site supervisor downloads this SWMS, customises the site address, project numbers and crew names, then runs a toolbox talk before mobilisation. During the AC mains upgrade, the lead electrician applies LOTO to the main switchboard, verifies dead with a tested two-pole tester, and an arc-rated PPE Category 2 ensemble is donned for the termination. Civil crew excavates the pad foundations using vacuum truck for the first 600 mm after a positive Dial Before You Dig response shows a Telstra fibre run within 1.2 m of the trench line. During commissioning two weeks later, the technician isolates the AC supply, waits the manufacturer-specified seven minutes, and confirms zero volts on the DC bus before opening the cabinet. A traffic controller maintains a 3 m exclusion zone with water-filled barriers as customers continue to refuel on the adjacent pump island. When a SafeWork NSW inspector visits unannounced, the supervisor produces the signed SWMS, the daily pre-starts, the LOTO permit and the worker sign-on register from the site folder — meeting the inspection requirements of WHS Regulation 2025 section 302 on the spot.
Related legislation
- Work Health and Safety Act 2011 (model)
- Work Health and Safety Regulation 2025 (NSW) and state equivalents
- Electricity Supply Act 1995 (NSW) and state equivalents
- Electrical Safety Act 2002 (QLD) where applicable
- Service and Installation Rules of the relevant Distribution Network Service Provider
- Environmental Planning and Assessment Act 1979 (NSW) — for development consent on commercial sites
- Dangerous Goods (Road and Rail Transport) Act for charger transport where battery-buffered units are involved
Frequently asked questions
Do I need a separate SWMS for the civil pad and the electrical commissioning, or does this cover both?
This SWMS covers the full scope from pad excavation through to energised commissioning as a single integrated work package. However, if the civil works are subcontracted to a separate PCBU, that subcontractor must prepare and sign their own SWMS for the excavation portion under WHS Regulation 2025 s.299. Both SWMS should be reconciled by the principal contractor and held together in the site safety file.
Does AS/NZS 5139 apply if the charger does not have an integrated battery?
AS/NZS 5139:2019 only applies where a battery energy storage system is integrated with the charger or the site. For standard grid-connected DC fast chargers without buffer batteries, AS/NZS 3000 and AS/NZS 3012 are the primary standards. We have included AS/NZS 5139 because an increasing number of high-power chargers (particularly 350 kW units in low-grid-capacity locations) now incorporate buffer batteries.
What licence does the electrician commissioning the DC side need?
DC commissioning of fast chargers must be performed by a fully qualified A-grade electrician (or state equivalent — for example, an Electrician's Licence in NSW under the Home Building Act 1989, or an Electrical Worker Licence in QLD). Restricted electrical licence holders, apprentices working unsupervised, and Limited Electrical Licence holders are not authorised. The manufacturer typically also requires a brand-specific commissioning credential before warranty activation.
How often must this SWMS be reviewed?
Under WHS Regulation 2025 s.302, the SWMS must be reviewed and revised whenever the control measures are no longer effective, before a change is made to the work, if a notifiable incident occurs in connection with the work, or if a HSR requests a review. As best practice, we recommend reviewing this SWMS at the start of every new site mobilisation and after any near-miss involving electrical, traffic or lifting hazards.
Is arc flash PPE actually required for DC charger work, or is that overkill?
Arc flash PPE is required wherever the calculated incident energy exceeds 1.2 cal/cm² at the working distance. DC fast chargers operating at 400-1000 V DC with available fault currents in the kiloamp range routinely produce incident energies of 4-12 cal/cm², placing the work in PPE Category 2 or above per IEEE 1584 / AS/NZS 4836. A formal arc flash study should be performed for the specific charger model and supply infrastructure; in the absence of one, default to Category 2 PPE as the minimum.
Can the service station keep trading while we install the chargers?
Yes, but only with a documented and implemented Traffic Management Plan compliant with AS 1742.3, and physical separation between work zones and trading forecourt. The TMP must be developed in consultation with the site operator and may require a qualified Traffic Controller (TC ticket holder) during high-risk activities such as crane lifts, trenching across drive lanes, or live cable pulling. If separation cannot be safely achieved, sections of the forecourt must be closed for the duration of those activities.