Introduction
For HVAC+R professionals in Australia, working with electrical components is part of the job. Whether it’s servicing air-conditioning units, troubleshooting refrigeration systems, or installing control wiring, understanding what electrical work is legally allowed under a Restricted Electrical Work Licence (REWL) is essential.
In Queensland, many HVAC+R technicians hold a restricted electrical licence, which allows them to perform specific electrical tasks directly related to their trade—but it does not grant the same broad authority as a fully licensed electrician. There are strict limits on what restricted licence holders can and cannot do.
Additionally, the latest updates to AS/NZS 3000 (Wiring Rules) and electrical safety regulations have introduced new live testing requirements that HVAC+R professionals must understand. These rules clarify when and how live testing can be performed and reinforce the industry-wide shift towards de-energised work as the standard practice.
This article will break down:
✅ 10 key limitations of a restricted electrical licence for HVAC+R professionals ✅ The latest live testing rule changes under AS/NZS 3000 and their impact on the trade ✅ Best practices for compliance, safety, and risk management in HVAC+R electrical work
Whether you’re a technician, contractor, or business owner, staying informed on these regulations is critical—not only to avoid legal trouble but also to ensure workplace safety and professionalism.
1. Restricted Electrical Licence vs Full Electrician: 10 Key Limitations
An HVAC+R restricted electrical licence in Queensland only allows electrical work that is directly incidental to refrigeration and air-conditioning systems. This means an HVAC+R technician can disconnect, reconnect, and test electrical components within HVAC systems but cannot perform electrical installation work beyond that.
Here are 10 key electrical tasks that a restricted HVAC+R licence does not allow, compared to a fully licensed electrician:
1. No Installing New Electrical Circuits
A restricted licence does not allow technicians to install new fixed wiring or supply circuits. For example, if an air-conditioning unit needs a dedicated circuit from the switchboard, this must be installed by a licensed electrician. HVAC+R techs can only work on the wiring within the unit itself—not the broader electrical installation.
2. No Altering or Extending Existing Wiring
Restricted licence holders cannot alter, modify, or extend existing electrical circuits. If an AC unit requires additional power outlets or an upgrade to its electrical supply, an electrician must complete this work.
3. No Work on Main Switchboards or Distribution Boards
Restricted HVAC+R techs cannot access or work inside switchboards, including main panels and distribution boards. Even if the HVAC system is powered through the switchboard, only a fully licensed electrician can install or modify components inside it.
4. No Replacing or Installing Circuit Protection Devices
Technicians cannot install or replace circuit breakers, fuses, RCDs, or other protection devices within electrical panels. If an HVAC system trips a breaker and the issue is electrical (rather than mechanical), an electrician must investigate and rectify the fault.
5. No Installing Isolation Switches or Control Panels
While HVAC+R techs can replace faulty switches within air-conditioning and refrigeration units, they cannot install external isolators, thermostats, or hard-wired control panels that form part of the fixed installation.
6. No Working on General Electrical Fixtures
Restricted licence holders cannot work on electrical fixtures outside of HVAC systems, such as lighting, power points, or general-purpose outlets—even in plant rooms or near refrigeration units.
7. No Running Interconnect Cables for New AC Installations
Installing permanent wiring between the indoor and outdoor units of a split system is considered electrical installation work and must be done by an electrician.
8. No Independent Electrical Work Outside HVAC+R Trade Scope
A restricted electrical licence is not a general electrical licence. HVAC+R technicians cannot legally perform electrical work on non-HVAC systems, such as wiring up hot water systems or switchboard upgrades.
9. No Acting as an Electrical Contractor or Certifying Work
Restricted licence holders cannot certify electrical installations or sign off on Certificates of Compliance. Any electrical work requiring certification must be performed and inspected by a fully licensed electrician.
10. No Work in Hazardous Electrical Environments
HVAC+R technicians cannot perform electrical work in hazardous locations (e.g., areas with explosive gases or high-voltage systems) unless they hold additional electrical endorsements.
These limitations exist for safety, compliance, and consumer protection. HVAC+R professionals are not trained or licensed for general electrical installations, and exceeding these boundaries can lead to legal penalties, safety risks, and voided insurance claims.
2. Live Testing Rule Changes Under AS/NZS 3000 (Wiring Rules)
The latest AS/NZS 3000 Wiring Rules and Queensland electrical safety regulations have strengthened requirements for live electrical testing. These changes impact HVAC+R professionals who need to perform voltage testing, fault diagnostics, or commissioning checks on energised systems.
Key Changes to Live Testing Rules:
🔴 Live Work is Generally Prohibited – The new regulations reinforce that all electrical work should be done with the power off whenever possible. Testing must be planned so that de-energised methods are used first.
🟡 Live Testing = “Live Work” Under the Law – Any testing of an energised circuit is legally considered live electrical work and must follow strict safety procedures, including risk assessments and proper PPE.
🟢 New Emphasis on “Working Near” Live Parts – If you are working within 3 metres of exposed live electrical equipment, additional precautions are required—even if you’re not directly touching it.
🟡 Strict Controls for Necessary Live Testing – When live testing is unavoidable, technicians must follow Safe Work Method Statements (SWMS), use insulated tools, wear PPE, and have emergency shutdown procedures in place.
🔴 Safety Observer Requirement – In many cases, a safety observer must be present when performing live electrical tests.
3. Impact on HVAC+R Work: Compliance, Safety & Risk Management
These regulations have significant implications for HVAC+R professionals:
✅ Clearer Role Separation – HVAC technicians should coordinate with electricians for any work outside their restricted licence scope.
✅ Increased Compliance & Documentation – Companies are introducing risk assessments, SWMS, and written test procedures to comply with live work regulations.
✅ Stronger Safety Culture – “Test Before You Touch” is now an industry standard, reducing the risk of electrical shocks and arc flash incidents.
✅ Work Planning & Efficiency – Understanding these rules helps HVAC+R professionals schedule electrical work correctly, reducing downtime and compliance risks.
✅ Ongoing Training & Professionalism – Staying informed on licensing requirements and Wiring Rules updates is essential for HVAC+R professionals to maintain industry best practices.
Conclusion
For HVAC+R professionals in Australia, staying within electrical licensing limits and following the latest live testing rules is essential for safety, compliance, and professionalism.
By working within their restricted licence, planning electrical tasks correctly, and following AS/NZS 3000 guidelines, HVAC+R technicians can reduce risk, avoid legal issues, and ensure safe, efficient service for clients.
⚡ Key Takeaways: ✔️ Know what your restricted licence allows—and what it doesn’t ✔️ De-energise before working whenever possible ✔️ Follow correct live testing procedures when necessary ✔️ Work with licensed electricians for installation or switchboard work ✔️ Stay informed on safety regulations and industry updates
What’s your experience with these electrical rules in the HVAC+R industry? Let’s discuss in the comments! ⬇️