Standards.
AS/NZS 3000: The Australian Wiring Rules explained
AS/NZS 3000 is the Australian/New Zealand Wiring Rules — the cornerstone standard that governs every fixed electrical installation in both countries. It sets out how circuits must be designed, protected, tested, and verified, and compliance is mandatory under state electrical safety law.
- AS/NZS 3000:2018
- AS/NZS 3000
AS/NZS 4777: Solar inverter compliance in Australia
AS/NZS 4777 is the Australian/New Zealand standard for grid-connected energy systems via inverters. Part 1 covers how the inverter is installed; Part 2 covers what the inverter itself must do. Together they set the compliance bar every rooftop PV system, and most home batteries, must meet before the local network will allow it to connect.
- AS/NZS 4777.1
- AS/NZS 4777.2
- AS/NZS 5033
AS/NZS 5139: Home battery installation safety standard
AS/NZS 5139 is the Australian/New Zealand standard for the safe installation of battery energy storage systems used with power conversion equipment. It governs where a home battery can be mounted, what clearances are required, and what protection has to be in place — all driven by the thermal-runaway risk of lithium-ion cells.
- AS/NZS 5139
- AS/NZS 4777.1
- AS/NZS 4777.2
Emergency and exit lighting: AS/NZS 2293 explained
Emergency lighting and exit signs in Australian commercial buildings are governed by AS/NZS 2293. The standard sets out how the system is designed, how often it must be tested, what gets recorded in the logbook, and what happens when the building certifier finds it lapsed.
- AS/NZS 2293.1
- AS/NZS 2293.2
- AS/NZS 2293.3
- NCC Volume 1 Part E4
Smoke alarm compliance: AS 3786, AS/NZS 3000 §7.8, and the NCC
Smoke alarm compliance in Australia is governed by AS 3786 (the device), AS/NZS 3000 §7.8 (how it's wired), and the NCC (where it goes). State regulations sit on top. This is the plain-English version for homeowners, landlords, and builders.
- AS 3786
- AS/NZS 3000:2018
- NCC Volume 2
Test and tag (AS/NZS 3760) explained for Australian businesses
Test and tag is the in-service inspection of portable electrical equipment under AS/NZS 3760. It combines a visual check with electrical tests for earth continuity, insulation resistance and polarity, then attaches a dated tag to the lead. Most state OH&S regulators require it for workplace equipment, with re-test intervals from three months to five years depending on the environment.
- AS/NZS 3760
- AS/NZS 3017
Safety & protection.
RCBO vs MCB vs RCD: protective devices in your switchboard
MCBs trip on overload, RCDs trip on earth leakage, and RCBOs do both in the one DIN-rail module. Modern switchboards are increasingly built one-RCBO-per-circuit, so a fault on the kitchen doesn't drop the bedroom lights. A plain-English breakdown of the three devices, the standards behind them, and what they look like on a quote.
- AS/NZS 60898.1
- AS/NZS 61009.1
- AS/NZS 3190
Safety switches (RCDs) explained: types, ratings, and what they actually protect
A safety switch (RCD) is a device that watches the current flowing into and out of your circuits and disconnects the power within around 30 milliseconds if it detects an imbalance. That imbalance is usually current leaking to earth — often through a person — which is why the safety switch is the single most important shock-protection device in your switchboard.
- AS/NZS 3190
- AS/NZS 3000:2018
The MEN earthing system: how Australian electrical earthing actually works
The MEN (Multiple Earthed Neutral) system is the earthing arrangement used in Australia and New Zealand. Neutral and earth are bonded together at the substation and again at every customer's main switchboard, with a copper-clad stake driven into the soil. This gives electrical faults a low-impedance path back to source so safety switches and circuit breakers can trip.
- AS/NZS 3000:2018
Equipment & components.
Three-phase vs single-phase power for Australian homes
Single-phase supply is the historical default for Australian homes — one active and a neutral, 230 V nominal, enough for around 80 A of total load. Three-phase brings three actives plus a neutral, 400 V line-to-line, and the headroom to run a 22 kW EV charger, big ducted AC, or a 15 kW solar system without overloading any one phase. Here's how to tell which you have, when an upgrade is worth it, and what it costs.
- AS/NZS 3000:2018
- AS 60038
What's in your switchboard: a labelled walkthrough
A labelled walkthrough of a typical Australian residential and small-commercial switchboard. From the sealed network fuse on the way in, through the main switch, RCDs and MCBs, out to your circuits — what every component does and the signs an old board is overdue for replacement.
- AS/NZS 3000:2018
- AS/NZS 61439
Licensing & compliance.
Electrical licence types in Australia: A-grade, restricted, REC, apprentice
Australian electrical licensing splits across roughly six categories — apprentice, restricted, A-grade electrician, supervisor, inspector, and the contractor business registration (REC in Victoria). Each one means a different scope of work, and only the contractor can actually pull a Certificate of Electrical Safety. Here's how to read what's on the swipe-card.
What CEC accreditation actually means for your solar installer
CEC accreditation is the Clean Energy Council's industry credential for the people who design and install grid-connected solar, off-grid solar, and battery systems in Australia. It sits on top of a base electrician's licence, not in place of one, and the federal STC rebate paperwork won't process without it.
- AS/NZS 4777.1
- AS/NZS 4777.2
- AS/NZS 5033
- AS/NZS 5139
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