Most of the electrical risk in a WA workplace is not hidden in the walls – it is on the end of a flexible cord. Power tools, extension leads, welders, pumps, chargers and the lunchroom kettle get dropped, dragged, crushed and left in the weather in ways fixed wiring never is. That is why portable plug-in equipment has its own inspection and testing regime, and why the tag on the lead matters more than most people think.
The rules are simpler than the industry sometimes makes them sound, and less optional than many businesses assume. WA's work health and safety laws put the duty on the business – not the worker holding the drill – to have plug-in equipment used in damaging environments regularly inspected and tested by a competent person, with records to prove it. Construction and demolition sites carry a stricter regime again under AS/NZS 3012.
This guide sets out the retest intervals that apply by environment under AS/NZS 3760:2022, what changes on construction sites, who may test and tag in WA, and the records that stand up when WorkSafe WA, an auditor or an insurer starts asking questions.
What WA law requires of employers
Under the Work Health and Safety Act 2020 and the WHS (General) Regulations 2022, a business must ensure the electrical equipment it provides is safe. The regulations then get specific: plug-in equipment used in a hostile operating environment – conditions likely to damage it or shorten its life – must be regularly inspected and tested by a competent person. Equipment that is damaged, or that fails a test, must not stay in use, and a record of each test must be kept at least until the item is tested again or leaves service.
The regulations set the duty; AS/NZS 3760:2022 supplies the method. The standard defines what the inspection and tests involve, the retest interval for each type of environment, and what goes on the tag and in the register. In truly benign environments the specific testing duty may not apply, but the general duty to manage electrical risk never switches off – so most WA businesses simply run the standard's intervals across the whole site.
Hostile or non-hostile: the question that sets your interval
A hostile operating environment is one where normal use exposes equipment to conditions likely to damage it: moisture, heat, vibration, mechanical damage, corrosive chemicals or dust. Workshops, factories, commercial kitchens, warehouse floors and anywhere equipment is regularly moved all qualify. A non-hostile environment is the opposite – a clean, dry office where the printer is plugged in once and never touched again.
The assessment follows the location and the use, not the appliance. The same laptop charger is non-hostile equipment on an accountant's desk and hostile equipment in a site shed. Where a case sits on the line, treat it as hostile and apply the shorter interval – the cost difference is small, and the conversation with a regulator after an incident is not.
AS/NZS 3760 retest intervals by environment
The intervals below are the indicative maximums most WA workplaces apply under AS/NZS 3760:2022. The standard allows intervals to be varied through a documented risk assessment, so treat these as the default position rather than immovable law. Construction sites sit under AS/NZS 3012, covered next.
| Environment | Indicative retest interval |
|---|---|
| Factories, workshops and places of manufacture, assembly, maintenance or fabrication | 6 months |
| Environments where the supply cord flexes in normal use or equipment is open to abuse, heat, moisture or dust – commercial kitchens, warehouse floors, hospitality areas | 12 months |
| Environments where the cord is not flexed and equipment is not open to abuse – clean, dry offices with equipment left in place | 5 years |
| Residential-style areas of hotels, hostels and other accommodation businesses | 2 years |
| Hire equipment | Visual inspection before each hire; test and tag at least every 3 months |
| Construction and demolition sites (AS/NZS 3012 applies) | Every 3 months, with colour-coded tags |
Two cases sit outside the table. New, unmodified equipment does not need an electrical test before first use – it gets a visual check for transport damage and a tag recording when it entered service, then joins the normal cycle for its environment. Repaired or serviced equipment must be tested before it goes back to work, which is one reason it pays to have a licensed electrician inside the program rather than a tester working alone.
Construction and demolition sites: AS/NZS 3012 and colour-coded tags
Construction work is close to the definition of a hostile environment, and AS/NZS 3012 treats it that way. Tools, extension leads and portable RCDs on construction and demolition sites are inspected and tested at much shorter intervals – every three months as the standard position – and each test period is matched to a tag colour, rotating through red, green, blue and yellow. The point of the colours is visibility: a supervisor can glance down a lead and know whether it is in date without reading a word.
Principal contractors enforce this at the gate, and gear wearing an out-of-cycle colour is routinely quarantined or turned away. Many WA mining and resources sites run stricter regimes again under their own electrical management plans, including monthly colour rotations, so confirm the site's requirements before your crew mobilises. Portable RCDs also carry their own push-button and trip-time testing alongside the equipment tags – covered in our guide to RCD testing requirements for WA workplaces.
Who may test and tag in WA
WA's WHS laws require the person doing the inspecting and testing to be a competent person – someone with the training, qualification or experience to do the job properly. In practice that means understanding AS/NZS 3760, using a calibrated portable appliance tester, and recognising what a failed result means. Nationally recognised test and tag courses exist for exactly this purpose, and WA does not require an electrical licence for the testing itself.
The licence question arrives the moment something needs fixing. Replacing a damaged plug top, re-terminating a lead or repairing an appliance is electrical work under WA's Electricity (Licensing) Regulations 1991, and it must be done by a licensed electrician. A tester without a licence can only fail the item, tag it out of service and hand it on. That is the practical argument for having licensed electricians run the program on industrial sites: faults found in the morning are repaired, retested and back in service by the afternoon, and the same crew can complete RCD trip-time testing and other statutory checks in the same visit.
Records that survive an audit
Every test produces two artefacts: the tag on the item and the entry in the register. The tag shows who tested it, when, and when it is due again. The register carries the detail – item identification, results, pass or fail, and what happened to the failures. WA's WHS regulations require test records to be kept at least until the next test or until the item permanently leaves the workplace; most businesses sensibly keep them longer.
The register is where programs quietly fall apart. Equipment bought after the last test round joins the fleet untagged, departed gear lingers on paper, and failed items creep back into service because nobody quarantined them. A register that matches what is physically on the floor is one of the first things checked in a workplace electrical safety audit – and from a regulator's or insurer's point of view, testing that was never recorded may as well never have happened.
FAQ
Is test and tag legally required in WA?
For plug-in equipment used in hostile operating environments, yes – WA's WHS (General) Regulations 2022 require regular inspection and testing by a competent person, with records kept and damaged equipment withdrawn from use. On construction and demolition sites the stricter AS/NZS 3012 regime applies. In benign office-style environments the specific duty may not bite, but the general duty to manage electrical risk remains, and the AS/NZS 3760 intervals are the accepted way to demonstrate it.
Do brand-new appliances need to be tested?
No. New, unmodified equipment does not require an electrical test before first use. It should be visually checked for transport damage, fitted with a tag recording the date it entered service, and added to the register so it joins the normal retest cycle for its environment. Hire equipment is treated differently – inspected before each hire and tested at least every three months.
What do the coloured tags on construction sites mean?
Under the AS/NZS 3012 regime, each three-month test period is assigned a tag colour, rotating through red, green, blue and yellow. The colour makes currency visible at a glance, so out-of-date leads and tools can be pulled without checking dates item by item. Some WA sites – particularly mining operations – mandate their own colours or monthly rotations under site rules, so always confirm the site's scheme before mobilising.
Can we do test and tag in-house?
Yes, provided the person doing it is properly competent – trained for the task, using a calibrated tester and keeping proper records. For a small fleet in a low-risk environment that can be economical. Larger or hostile-environment sites usually do better with a contractor: testing at scale is faster, repairs by a licensed electrician happen in the same visit, and the register and retest reminders are managed for you. Actual pricing depends on fleet size and access, so get a quote.
How CPR Electrical can help
CPR Electrical Services runs test and tag programs for workshops, warehouses, offices and construction sites across Perth and regional WA as part of our RCD and electrical testing service. Because our testers are licensed electricians working under Electrical Contractor Licence EC007235, failed items are repaired and retested on the spot rather than left in a quarantine bin, and RCD trip-time testing is completed in the same visit.
We schedule retests to match your environments so nothing lapses, keep registers audit-ready under our ISO 45001:2018 certified systems, and can fold the whole program into planned electrical maintenance and servicing where that suits the site. Call (08) 9356 6355 or get in touch to set up a testing program that stays current.