If your facility uses medical electrical equipment, AS/NZS 3551 compliance isn’t optional — it’s the standard accreditation bodies, insurers, and regulators expect you to be able to prove, on demand. Nova Biomedical has been carrying out AS/NZS 3551 electrical safety testing across hospitals, GP clinics, aged care facilities, mine sites, and government and defence sites for over 25 years, and we’re ISO9001:2015 certified for the quality systems behind that work.
This page covers what AS/NZS 3551 actually requires, how often testing needs to happen, what’s involved in a compliant test, and what happens if it’s overdue.
What Is AS/NZS 3551?
AS/NZS 3551 is the joint Australian/New Zealand Standard covering the management, testing, and maintenance of medical equipment — including electrical safety testing and the broader equipment management program a healthcare facility is expected to run. It sits alongside standards like IEC 62353 (which governs the specific electrical safety test methods for medical electrical equipment in use) and works together with your facility’s broader risk and asset management obligations.
In practice, AS/NZS 3551 is what accreditation surveyors, WHS auditors, and insurers point to when they ask: can you show us your medical equipment is safe to use, and that someone is managing that on a defined schedule?
Why AS/NZS 3551 Compliance Matters
Non-compliant or untested medical electrical equipment isn’t just a paperwork problem — it’s a patient safety and staff safety issue, and it exposes your facility on several fronts at once:
- Accreditation risk. NSQHS Standards (hospitals), RACGP/AGPAL/QIP (general practice), and Aged Care Quality Standards assessments all expect documented evidence of a functioning medical equipment testing program. A gap here can affect your accreditation outcome.
- Patient and staff safety. Electrical faults in medical equipment — leakage current, earth continuity failures, insulation breakdown — are a real risk in clinical environments where equipment is in direct or close contact with patients.
- Insurance and liability exposure. In the event of an incident involving faulty equipment, an insurer or investigator will ask for your testing records. No records, no defensible position.
- Operational continuity. A failed test on critical equipment (patient monitors, infusion pumps, defibrillators) found before it fails in use is a maintenance event. Found after, it’s an incident.
How Often Does Medical Equipment Need AS/NZS 3551 Testing?
Testing frequency under AS/NZS 3551 isn’t one-size-fits-all — it’s based on the equipment’s risk classification, how it’s used, and your facility’s own equipment management program. As a general guide, facilities typically work to:
- High-risk / life-support equipment (defibrillators, ventilators, infusion pumps, patient monitors) — tested most frequently, often annually or more often depending on usage and manufacturer guidance.
- General clinical equipment — tested on a standard annual or biennial cycle depending on risk classification and facility policy.
- New equipment — tested prior to first clinical use, regardless of where it sits in the standard cycle.
- After any repair, modification, or relocation — equipment should be re-tested before being returned to service.
The right interval for your equipment fleet depends on your facility’s documented equipment management program and risk assessment. This is exactly the kind of thing worth getting right before an accreditation surveyor asks for it — not after.
What’s Involved in an AS/NZS 3551 Electrical Safety Test
A compliant test isn’t a quick visual check. Our technicians carry out:
- Visual inspection — checking for physical damage to casings, cords, plugs, and connectors.
- Earth continuity testing — confirming the protective earth path is intact and within specification.
- Insulation resistance testing — checking that insulation between live parts and accessible metal is adequate.
- Leakage current testing — measuring earth leakage, enclosure leakage, and (where applicable) patient leakage current against the relevant classification limits.
- Functional performance checks — confirming the equipment operates as intended, where within scope of the service.
- Tagging and documentation — every tested item is tagged with the test date, result, and next due date, and results are logged against your asset register.
At the end of the process, you get a clear, audit-ready compliance report — the exact document an accreditation surveyor or auditor will ask to see.
What Happens If Your Equipment Isn’t Tested?
Overdue or missing electrical safety testing typically surfaces at the worst possible time — during an accreditation survey, after an incident, or when an insurer asks for records following a claim. Beyond the immediate compliance and safety exposure, it can mean:
- Equipment being pulled from service until testing catches up, disrupting clinical operations
- Accreditation findings or conditions requiring a remediation plan
- Difficulty demonstrating due diligence if equipment is later involved in an incident
The most common cause we see isn’t neglect — it’s a testing program that’s grown faster than the tracking system behind it, especially across multi-site operations.
Why Nova Biomedical
Nova Biomedical has been providing AS/NZS 3551 electrical safety testing and broader biomedical engineering services for over 25 years, and we hold ISO9001:2015 certification for our quality management systems. Our work spans hospitals, GP and specialist clinics, aged care facilities, mine site medical rooms, and government, defence, and ambulance service contracts across Australia — including remote and hard-to-access sites.
That range matters: a mine site medical room and a metro hospital ward have very different logistics, but the same non-negotiable standard applies to both. We bring planned, documented, audit-ready testing programs to both ends of that spectrum. See our full range of biomedical engineering services.
FAQ
How often does medical equipment need AS/NZS 3551 testing?
It depends on the equipment’s risk classification and your facility’s equipment management program — high-risk and life-support equipment is generally tested most frequently, with intervals set out in your program’s risk assessment. Nova Biomedical can review your current schedule and confirm it against AS/NZS 3551 requirements.
Is AS/NZS 3551 testing the same as tagging under AS/NZS 3760?
No. AS/NZS 3760 covers general in-service electrical equipment (the kind of “test and tag” that applies to office equipment and appliances). AS/NZS 3551 is specific to medical equipment and includes additional testing relevant to clinical use, such as patient leakage current.
What documentation do we get after testing?
A full compliance report covering every item tested, the test results, pass/fail status, and next due date — the documentation accreditation surveyors and auditors ask for directly.
Do you test equipment on-site or do we need to send it away?
Testing is carried out on-site at your facility as standard, minimising disruption to clinical operations. This applies across metro, regional, and remote sites, including mine site medical rooms.
What if equipment fails testing?
Failed items are clearly tagged out of service and reported immediately, with repair or replacement options discussed as part of the same visit where practical.
Who Needs AS/NZS 3551 Testing
This standard underpins equipment testing across every sector we work with, including hospitals, GP & medical centres, and ambulance services. We provide this testing throughout the Gold Coast and beyond.
Get Your AS/NZS 3551 Testing Scheduled
If your accreditation review is approaching, or you simply need a clear, audit-ready picture of where your equipment testing stands, Nova Biomedical can help. Contact Nova Biomedical for a quote.
