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Field notes — 30 articles

Strata electrical: who's responsible for what
● Latest · 12 October 2026

Strata electrical: who's responsible for what

In Victorian strata, electrical responsibility divides at the lot boundary defined in the plan of subdivision. The main switchboard in a residential apartment block is usually common property. Common area lighting, shared infrastructure, and EV chargers all sit with the owners corporation, with implications for lot owners wanting to upgrade.

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023 October 2026

Thermographic inspection: what it finds and when to book one

Thermal imaging finds hot connections, overloaded conductors and failing contactors in commercial switchboards before they cause fires or outages. A proper thermographic survey is not the same as pointing an IR camera at a board.

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0324 September 2026

Test and tag in Victoria: what the law actually requires

Test and tag is a legal requirement for most Victorian workplaces under the OHS Act and AS/NZS 3760. Intervals depend on the environment: 3 months on construction sites, 5 years in offices. Here's what applies to your premises.

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0415 September 2026

LED downlight retrofits: what the job involves and what to watch for in older homes

Retrofitting halogen downlights to LED cuts around 80% of the lighting load. Here's what the work actually involves, why old halogen transformers can't just carry on, and what we look for in older homes before starting.

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056 September 2026

Power point placement: the questions to answer before your electrician visits

Moving a power point after the plasterboard is up costs four times what it costs to add one during a renovation. Here are the questions to work through before your electrician visits: kitchens, offices, bedrooms, and outdoor spaces.

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0628 August 2026

Outdoor lighting: what's weatherproof and what's actually just water-resistant

IP44, IP54, IP65, IP66: which outdoor lighting IP rating is right for which location in a Melbourne home, and why getting it wrong costs more than getting it right first time.

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0719 August 2026

Induction cooktop installation: what's involved electrically and why a sparky needs to do it

Induction cooktops draw 7–14kW and need a dedicated circuit sized to the appliance, commonly 32–50A. Here's what the electrical work involves and why getting it right before you buy matters.

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0810 August 2026

Home battery storage: what the electrical installation actually involves

AC-coupled and DC-coupled battery systems each have different implications at the switchboard. Here's what the installation actually involves: changeover equipment, backup wiring, AS/NZS 5139, and Virtual Power Plant connections.

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091 August 2026

Solar inverter upgrades: when your old inverter is holding back your system

Most Melbourne solar systems installed between 2010 and 2016 have inverters at or past their design life. Here's what signs of underperformance look like, what AS/NZS 4777 compliance requires, and what a hybrid inverter adds.

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1023 July 2026

EV charger load management: what it is and when you need it

Load management throttles your EV charger when household demand is high, keeping total draw within your supply limit. Here's how CT clamps, software-based control, and solar integration work in practice.

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03References

The library.

Plain-English explainers on the standards, gear and licensing behind the work — the reference shelf we wish more jobs started from.

equipment4 October 2026

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.

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equipment4 October 2026

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.

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licensing4 October 2026

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.

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licensing4 October 2026

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.

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