AS/NZS 3000 verification: the tests every installation needs
Before a new electrical installation — or an addition or alteration — is energised and handed over, it has to be verified. In Australia and New Zealand that requirement comes from AS/NZS 3000 (the Wiring Rules), with the test methods set out in AS/NZS 3017. Verification is how you prove the installation is safe to switch on.
It has two parts: a visual inspection, then testing.
1. Visual inspection
Before any meter comes out, the installation is inspected to confirm it is built to the rules — correct devices and ratings, correct connections and terminations, proper identification and labelling, suitable protection against the environment, and so on. Many issues are caught here, before testing begins.
2. The mandatory tests
AS/NZS 3000 requires verification by both inspection and testing, with the detailed test methods set out in AS/NZS 3017. The tests run in a dead-before-live sequence where practical: some are done dead (before the supply is connected), the rest live(once energised) — an order driven by safety.
| Test | When | What it confirms |
|---|---|---|
| Continuity of the earthing system | Dead | Protective earthing and equipotential bonding conductors, and earthing connections, are electrically continuous |
| Insulation resistance | Dead | Insulation meets the minimum specified (standard low-voltage circuits are tested at 500 V DC) |
| Polarity | Dead | Outlets, switches, protective devices and accessories have correct polarity; single-pole switching and protection is in the active conductor |
| Correct circuit connections | Dead | Conductors land on the correct terminals and circuits |
| Earth fault-loop impedance | Live | The loop is low enough — or fault current high enough — for protective devices to disconnect within the required time |
| Operation of RCDs | Live | RCDs trip within the required time (push-button test plus an instrument trip-time test) |
| Phase sequence (three-phase) | Live | Correct phase rotation on three-phase supplies |
The specific pass/fail values — insulation-resistance minimums, loop-impedance limits for a given protective device, RCD trip times — are set by AS/NZS 3000 and AS/NZS 3017 and depend on the circuit and devices involved. Always read them from the current standard rather than memory.
Verification also covers design requirements — such as voltage drop and conductor sizing — which are generally confirmed by calculation rather than a field measurement.
What goes on the report
Verification isn’t finished until the results are recorded. A good results sheet shows each test, the measured value, the circuit it applies to, a clear pass, and who carried it out — so the installation’s safety can be demonstrated later. In several states a formal certificate (for example a certificate of compliance or electrical safety) must also be issued; what that involves varies by state.
The standard vs the law
AS/NZS 3000 defines howto test and what “safe” looks like, but your legal obligations — including which certificate to issue and to whom — come from your state or territory’s electrical-safety legislation. Treat the standard as the method and your local regulations as the requirement.
Turning the results into a report
Recording readings on paper and rewriting them into a report later is where time goes and mistakes creep in. Field Efficientlets you capture each verification result in the field and builds the branded report for you — checked against the relevant clause — so the documentation is done before you leave site.
This guide is general information, not compliance advice. Always work to the current editions of AS/NZS 3000 and AS/NZS 3017 and your state or territory’s requirements.
Field Efficient turns your test data into branded, standards-validated reports — automatically.
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