Compliance, documented to the asset

Electrical safety in the workplace does not begin and end with the fixed wiring. Portable appliances and flexible leads introduce risk that the switchboard and RCDs alone cannot fully mitigate. Australian Standard AS/NZS 3760 provides the framework for managing that risk systematically: visual inspection and electrical testing of in-service equipment at intervals calibrated to the environment in which that equipment is used. Lumen & Wire delivers test and tag services that are thorough, well-documented, and structured to make compliance straightforward for asset owners and managers.

Our testing technicians are trained and competent to AS/NZS 3760, and every test is conducted with calibrated instrumentation — not consumer-grade equipment with uncertain accuracy. We issue barcoded tags for every tested item, and the results feed into a digital asset register that gives you a clear, searchable record of what was tested, when, what the results were, and when the next test is due. That record is your evidence of due diligence, and it needs to be accurate.

Appliance and Lead Testing: What the Standard Requires

AS/NZS 3760 requires visual inspection and electrical testing of portable electrical appliances and flexible leads in commercial, industrial, and construction environments. Visual inspection covers the condition of plugs, cords, strain relief, outer insulation, and the appliance body for damage that would compromise safety. Electrical testing includes earth continuity measurement for Class I equipment, insulation resistance testing for all relevant equipment, and polarity verification.

Testing intervals under AS/NZS 3760 are not one-size-fits-all. The standard distinguishes between environments — a construction site demands more frequent testing than a low-risk office environment — and within each environment, the type of equipment and its usage pattern inform the appropriate interval. We apply a risk-based approach to scheduling, working with your team to establish intervals that satisfy the standard without creating unnecessary testing overhead on low-risk items.

• Visual inspection of plugs, cords, strain relief, insulation, and equipment bodies
• Earth continuity testing for all Class I portable appliances
• Insulation resistance testing to AS/NZS 3760 pass thresholds
• Polarity verification for all tested items
• RCD testing: push-button functional test and timed trip testing
• Barcoded digital asset register with individual item test history and next-due dates

RCD Testing

Residual current devices are the last line of protection against electric shock from earth-fault currents. AS/NZS 3760 requires both push-button functional testing and timed trip testing of RCDs at intervals prescribed by the standard. Push-button testing confirms the device will operate, but timed trip testing verifies it operates within the maximum disconnection time specified for its class. RCDs that fail timed trip testing may provide a false sense of protection while offering inadequate response to a genuine fault current.

We test all RCDs within scope — fixed switchboard RCDs, plug-in portable RCDs, and RCD-protected power boards — and record individual test results against each device. Defective RCDs are clearly flagged with a recommendation for immediate replacement. We do not simply tag and move on when a device has failed; we communicate the defect, explain the implications, and coordinate repair or replacement as required.

Digital Asset Registers and Audit-Ready Reporting

The value of test and tag is only as good as the records it produces. A folder of paper tags does not constitute a compliant asset register. Our digital system generates individual records for every tested item, including a unique barcode identifier, the test date, technician identity, test results for each measurement taken, the pass or fail outcome, and the next scheduled test date. Reports can be exported in formats suitable for your WHS management system, your property manager, or an insurance or regulatory audit. When a WorkSafe inspector or a certifier asks for evidence that your electrical equipment program is being managed, you can produce it within minutes.