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Salt air, Bay storms, and summer lightning make the Peninsula tougher on electronics than almost anywhere else in Victoria. Whole-house surge protection installed by a local A Grade electrician who knows the conditions here.
Most electricians treat surge protection as an afterthought — a single SPD bolted to the switchboard, box ticked. On the Mornington Peninsula, that's not good enough. The combination of marine environment, coastal storm exposure, and the rapid uptake of expensive electronics — solar inverters, EV chargers, smart home systems, battery storage — means surge protection is one of the most cost-effective things a Peninsula homeowner can do. We approach it the way it should be approached: assessing your specific exposure and installing protection that actually matches the risk.
The 2018 edition of AS/NZS 3000 (the Australian Wiring Rules) updated surge protection requirements significantly. Clause 2.10.4 requires SPDs to be considered in all new installations and addresses three scenarios:
Any switchboard upgrade or new installation we carry out includes an SPD discussion as standard. It's not optional in 2025 on a coastal Peninsula property with smart home or solar equipment.
A single SPD at the switchboard handles most surge events. But for properties with significant electronic investment — solar, battery, EV charger, home automation — a two-layer approach provides substantially better protection:
Installed at your main distribution board, a Type 2 SPD clamps incoming surges from the power network before they reach any circuit in your home. It handles the bulk of surge energy from external events — lightning-induced transients on network lines, switching events from the grid, and nearby strike activity. This is the essential first layer every Peninsula home should have.
Installed at the point of use — at the inverter, EV charger, home theatre, or server rack — Type 3 SPDs handle residual transient energy that passes through the Type 2 device and any internally-generated surges from equipment on the same circuit (e.g. large motors switching on and off). For solar inverters and EV chargers, this second layer meaningfully extends equipment life.
Strata complexes and marina properties have unique surge protection requirements. Common area switchboards service multiple tenancies, meaning a single surge event can affect dozens of individual units. Marina berths add the complication of direct water exposure and floating structures that can carry ground faults back into the electrical system.
EV chargers are among the most surge-vulnerable pieces of equipment in a modern home. The onboard electronics that manage charging rate, communication with the vehicle, and solar diversion operate at voltages where even moderate transients can cause permanent damage. A Tesla Wall Connector, Zappi, or Wallbox unit represents a significant investment — one that a properly installed SPD protects for the life of the equipment.
When we install EV chargers, we always discuss SPD protection as part of the installation. If your EV charger was installed without surge protection, it's worth rectifying. Call 0418 383 232.
We install whole-house SPDs throughout the Mornington Peninsula. Particularly high demand in coastal and elevated areas:
More than most places in Victoria, yes. The Peninsula is exposed on three sides to Bass Strait, Port Phillip, and Western Port. Salt-laden air accelerates corrosion on electrical contacts and printed circuit boards inside appliances. Summer thunderstorms rolling off the Bay produce significant lightning activity. And power outages followed by restoration cause voltage transients that are particularly damaging to smart appliances, inverters, and EV chargers. If your property has expensive electronics, solar, an EV charger, or you're in a coastal or elevated area, SPD installation is a straightforward investment.
Type 1 SPDs are installed at the main switchboard and are designed to handle direct lightning strike current — they're mandatory where there's a lightning protection system on the building. Type 2 SPDs handle indirect surges and switching transients and are the standard whole-house protection installed at the switchboard. Type 3 SPDs are point-of-use devices (powerboard-style), suitable only for protecting individual sensitive equipment. AS/NZS 3000:2018 Clause 2.10.4 specifies when each is required. We assess your property and install the appropriate combination — typically Type 2 at the board, with Type 3 at critical equipment.
Everything connected to your home's electrical system. Smart TVs, computers, home theatre equipment, refrigerators and dishwashers with electronic controls, inverter-driven air conditioners, solar inverters, battery storage systems, EV chargers, smart home hubs, and any other device with a microprocessor or PCB inside. Modern appliances are far more voltage-sensitive than older equipment — a 2kV transient that would barely affect a 1990s fridge can destroy the control board of a modern one.
Inverter manufacturers include basic over-voltage protection designed to protect the unit itself from immediate damage — not to protect your downstream loads or the inverter from sustained surge activity. It's also not a substitute for AS/NZS 3000-compliant SPD installation at the switchboard. For properties with solar, we typically install a two-layer solution: Type 2 at the main board, and additional protection at the inverter's DC input if the array is exposed and elevated.
Yes. We work with strata managers and owners corporations across the Peninsula on common area switchboard upgrades and SPD installation. We can prepare a scope of works for OC approval, coordinate with the strata manager, and provide documentation for the building file. Call 0418 383 232 to discuss your strata property.
AS/NZS 3000:2018 introduced updated guidance on surge protection (Clause 2.10.4), making it a consideration in all new electrical installations where sensitive equipment is present. While it isn't an absolute mandatory requirement in every scenario, the standard effectively makes SPD inclusion best practice for new builds and major switchboard upgrades — particularly where the installation includes solar, battery storage, EV chargers, or smart home systems. Any competent electrician doing a new switchboard should be discussing SPD with you.
Installing a Type 2 SPD at your switchboard typically takes 1–2 hours, including labelling and testing. If combined with a switchboard upgrade or other work, it's efficient to do at the same time. We can usually book Peninsula properties within a few days.
Fast bookings across the Mornington Peninsula
A Grade Licensed · REC 25266 · AS/NZS 3000:2018 Compliant
