Single Phase Testing
AS/NZS 3760 compliant testing for single-phase portable electrical appliances and equipment.
Overview
What is Single Phase Testing?
Single-phase testing covers the inspection and electrical safety testing of standard portable appliances that operate on 230V single-phase power — the most common type of electrical equipment found in Australian workplaces. This includes computers, monitors, printers, kettles, microwaves, power tools, extension leads, power boards, heaters, and more. Our technicians perform visual inspections, earth continuity tests, insulation resistance tests, and earth leakage tests using calibrated PAT equipment, ensuring every item meets AS/NZS 3760 requirements.
100%
AS/NZS 3760 Compliant
24hr
Report Delivery
Full
Digital Records
Local
Perth Team
Why It Matters
Why Single Phase Testing matters
Single-phase 230V appliances account for the vast majority of portable electrical equipment in Australian workplaces — and the majority of electrical test failures.
Under Work Health and Safety legislation, PCBUs must ensure all portable electrical equipment is maintained in a safe condition, regardless of whether it is single-phase or three-phase.
Single-phase equipment is often moved, unplugged, and re-plugged frequently, accelerating wear on plugs, cords, and connections.
Construction and demolition sites using single-phase equipment require 3-monthly testing under AS/NZS 3760 hostile-environment intervals.
A single faulty 230V appliance — a frayed cord, a cracked plug, or degraded insulation — can cause electric shock, fire, or electrocution.
Common Faults
What we commonly find
These are the most common faults found during single phase testing inspections in Perth workplaces.
Damaged power cords from frequent plugging and unplugging
Risk: Single-phase equipment is moved and unplugged more often than fixed equipment, accelerating cord and plug wear. Exposed conductors create an immediate risk of electric shock and fire.
Cord replaced on-site with correctly rated replacement, properly terminated with adequate strain relief, and item retested.
Cracked plug housings from impact or age
Risk: Live pins become accessible, creating a high risk of electric shock — especially in high-traffic areas like offices and kitchens.
Plug replaced with an approved heavy-duty replacement rated for the equipment's current draw.
Failed insulation resistance
Risk: Current leaking through degraded insulation can cause nuisance RCD tripping, equipment damage, or electric shock. Common in older equipment and items exposed to moisture or heat.
Item removed from service and documented. Repair or replacement recommended depending on equipment value and fault severity.
Overloaded power boards and extension leads
Risk: Daisy-chained power boards or overloaded extension leads cause overheating, melted housings, and fire. Common in office environments with limited outlets.
Overloaded configuration documented and flagged. Recommendations provided for additional circuits or redistribution of loads.
Testing intervals
Inspection & Testing Intervals
Recommended inspection and testing frequencies based on AS/NZS 3760 for different workplace environments and equipment types.
CAUTION
This information should be read together with the AS/NZS 3760 standard as a whole, particularly Clause 2.1. Inspection intervals vary depending on equipment type and operating environment.
| Type of Environment and/or Equipment | Test & Tag (Class I, Class II, Cord Sets, Extension Leads, EPODs) | Interval Between Inspection and Tests | |||
|---|---|---|---|---|---|
| Residual Current Devices (RCDs) — Push Button Test by User | Residual Current Devices (RCDs) — Operating Time & Push Button Test | ||||
| Portable (c) | Fixed (d) | Portable (e) | Fixed (f) | ||
Factories Workshops, Places of repair, Manufacturing, Assembly, Maintenance, Fabrication Industrial workplaces | Every 6 Months | Daily / Before Every Use | Every 6 Months | Every 12 Months | Every 12 Months |
Equipment where the flexible cord is subjected to flexing during normal use OR is open to abuse OR used in hostile environments. Construction, mining, demolition, workshops | Every 12 Months | Every 3 Months | Every 6 Months | Every 12 Months | Every 12 Months |
Equipment where the supply flexible cord is NOT subjected to flexing in normal use and is NOT open to abuse and NOT used in hostile environments. Office equipment | Every 5 Years | Every 3 Months | Every 6 Months | Every 2 Years | Every 2 Years |
Residential areas Hotels, Motels, Boarding Houses, Accommodation, Residential Institutions Residential & accommodation | Every 2 Years | Every 6 Months | Every 6 Months | Every 2 Years | Every 2 Years |
Equipment used for Commercial Cleaning Cleaning contractors | Every 6 Months | Daily / Before Every Use | N/A | Every 6 Months | N/A |
Hire Equipment Equipment supplied on hire Inspection | Prior to Hire | Including push-button test by hirer before hire | N/A | N/A | |
Hire Equipment Equipment supplied on hire Test & Tag | Every 3 Months | N/A | N/A | Every 3 Months | Every 12 Months |
Repaired, Serviced & Second-hand Equipment Before return to service | After repair or service which could affect electrical safety, or before reintroduction into service, refer to AS/NZS 5762. | ||||
Factories
Workshops, Places of repair, Manufacturing, Assembly, Maintenance, Fabrication
Industrial workplaces
Test & Tag
Every 6 MonthsPort. Push Button
Daily / Before Every UseFix. Push Button
Every 6 MonthsPort. Op. Time
Every 12 MonthsFix. Op. Time
Every 12 MonthsEquipment where the flexible cord is subjected to flexing during normal use OR is open to abuse OR used in hostile environments.
Construction, mining, demolition, workshops
Test & Tag
Every 12 MonthsPort. Push Button
Every 3 MonthsFix. Push Button
Every 6 MonthsPort. Op. Time
Every 12 MonthsFix. Op. Time
Every 12 MonthsEquipment where the supply flexible cord is NOT subjected to flexing in normal use and is NOT open to abuse and NOT used in hostile environments.
Office equipment
Test & Tag
Every 5 YearsPort. Push Button
Every 3 MonthsFix. Push Button
Every 6 MonthsPort. Op. Time
Every 2 YearsFix. Op. Time
Every 2 YearsResidential areas
Hotels, Motels, Boarding Houses, Accommodation, Residential Institutions
Residential & accommodation
Test & Tag
Every 2 YearsPort. Push Button
Every 6 MonthsFix. Push Button
Every 6 MonthsPort. Op. Time
Every 2 YearsFix. Op. Time
Every 2 YearsEquipment used for Commercial Cleaning
Cleaning contractors
Test & Tag
Every 6 MonthsPort. Push Button
Daily / Before Every UseFix. Push Button
N/APort. Op. Time
Every 6 MonthsFix. Op. Time
N/AHire Equipment
Equipment supplied on hire
Inspection
Prior to HireTest & Tag
Every 3 MonthsPush Button
Including push-button test by hirer
Port. Op. Time
Every 3 MonthsFix. Op. Time
Every 12 MonthsRepaired, Serviced & Second-hand Equipment
After repair or service which could affect electrical safety, or before reintroduction into service, refer to AS/NZS 5762.
Important Note
Inspection frequencies depend on equipment type, condition and working environment. Hostile environments require more frequent inspection and testing.
Always refer to AS/NZS 3760 or contact our team if you are unsure which interval applies to your workplace.
Our Process
How Single Phase Testing works
Our streamlined process ensures every single phase testing engagement is efficient, thorough, and fully documented.
Site Walk-Through
Our technician walks through your site to locate and identify all single-phase portable electrical equipment, including items in offices, kitchens, workshops, server rooms, and storage areas.
Visual Inspection
Each item is visually inspected for damage to plugs, cords, casings, and connections. Items with visible damage are flagged before electrical testing begins.
Electrical Testing
Calibrated PAT equipment runs earth continuity, insulation resistance, and earth leakage tests on each item. Test sequences are automated and results recorded digitally.
Result & Tagging
Pass or fail result determined. A durable QR-coded tag is applied to each tested item. Failed items are tagged with a FAILED — DO NOT USE label and documented.
Digital Reporting
Full compliance report with asset register, individual test results, pass/fail summary, and photos of failed items delivered to your online portal within 24 hours.
Inspection Checklist
What we inspect
Every Single Phase Testing inspection follows a rigorous checklist to ensure nothing is missed.
Visual Inspection
Plugs, cords, casings, strain reliefs, and connections checked for damage, wear, heat damage, or unauthorised modifications.
Earth Continuity
Verifies the protective earth connection is intact with low resistance, ensuring fault current can safely trip circuit protection.
Insulation Resistance
Measures insulation resistance between active/neutral conductors and earth at 500V DC to confirm no current leakage paths exist.
Earth Leakage
Measures leakage current flowing to earth during normal operation to verify it remains within safe limits.
RCD Push-Button Test
Where an RCD is present, verifies the safety switch trips correctly when the test button is pressed.
Tag Application
Durable, colour-coded QR-coded tag applied showing test date, pass/fail result, technician ID, and next scheduled test date.
What You Receive
After your inspection, you receive
These digital tools and reports are included as part of your inspection — not sold separately.
Digital Compliance Report
Full asset register with individual test results, pass/fail status, failure details with photographic evidence, and recommendations for non-compliant items.
QR Asset Labels
Each item receives a unique QR code linking to its complete test history, location, and next due date in your digital asset register.
Compliance Certificate
Formal certificate confirming your workplace meets AS/NZS 3760 requirements for all tested single-phase equipment.
Online Portal Access
24/7 access to your asset register, reports, compliance dashboard, and historical test data from any device.
Automated Reminders
Automatic reminders scheduled 30 days before each item is due for retest — so nothing slips through and you stay compliant.
Benefits
Why choose our Single Phase Testing?
Our single phase testingservice delivers measurable results for Perth businesses. Here's what sets us apart.
Comprehensive Testing
Full AS/NZS 3760 testing sequence — visual inspection, earth continuity, insulation resistance, and earth leakage on every item.
Minimal Disruption
Our technicians work around your schedule, testing items efficiently with minimal impact on your operations.
Digital Records
Every test result recorded in your digital asset register with QR-coded tags applied to each item.
Perth-Wide Coverage
Consistent single-phase testing service across all Perth suburbs and surrounding areas.
Industries
Industries we serve
Our single phase testing service is built for businesses across these industries.
Service Area
Where we provide this service
Our Single Phase Testing service is delivered onsite across the Perth metropolitan area and surrounding regions.
Perth Metropolitan
Peel Region
Regional WA
- Selected regional locations available by arrangement
- Enquire for Availability
Single Phase Testing FAQs
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