There’s that moment most Perth EV charger buyers have, stuck somewhere between tearing off the packaging on the unit and getting the final bill, where the project they thought they had a handle on suddenly turns into a whole lot more complicated. The charger itself was the easy part. Everything behind it, the cabling, the switchboard, the compliance paperwork, the commissioning process, that’s where the real complexity starts to rear its head. And because most buyers don’t even know to ask about all this upfront, the surprises tend to come at the worst possible moment.
Why the Quality of Your Install Is More Important Than the Charger Brand?
A mid-range charger installed by a good electrician with real experience will usually outperform a top-of-the-range unit that’s been slapped together carelessly. Some common shortcuts people make when arranging ev charger supply & install perth include running the cables too small so they heat up under load, not doing the earthing properly, forgetting the surge protection and putting the enclosure in a spot that gets blasted with sunshine or rain. None of these problems are visible when you first hand the charger over; they only start to show up over time as circuit breakers keep tripping, the charging speed slows down and manufacturers start rejecting warranty claims because the installation just wasn’t done right. In Western Australia, licensed contractors are required for any EV charger supply and install, and if they get it wrong, it can be very hazardous indeed.
The Switchboard Problem Nobody Ever Budgets For
Most of the hidden costs in EV charger installs come from the switchboard. A lot of Perth homes that were built a while back, pre-2000, have switchboards that just aren’t designed to cope with the load from a 7kW charger over a long overnight charge. Properly, before you start any work, you need to do a load calculation: add up all the other things drawing power at the same time and then add the charger in. If that total is bigger than the switchboard is rated for, or if it’s one of those old switchboards with ceramic fuses, you need to upgrade before you can even think about commissioning the charger. Upgrading the switchboard in Perth will usually set you back between $800 and $2,500. If a quote doesn’t include a switchboard assessment, that’s a good reason to ask some questions before you let them start work.
Cable Run Problem Perth Properties Share
Homes built during the post-war suburban boom era tend to have their primary switchboard located near the front of the property and garages or carports in the rear. The cable run between these two locations will form a considerable proportion of the cost of the install. In Perth, UV-rated conduit is required for any externally installed run. Underground cable needs to be buried at depths specified in the Australian Standards with conduit protection and marking tape. Rear of block trenching can cost anywhere from $600 to $1,500 to complete.
Before you embark upon any installation, ensure that you know:
- The distance of the direct cable route from the switchboard to the charger location.
- If trenching underground is required and what it entails in terms of surface reinstatement.
- If there is enough load capacity in the switchboard for the charger circuit.
- If Western Power needs to be notified about the circuit install.
- What documentation will you receive on completion.
Maintenance: What Your Installer Doesn’t Want You to Know
Electrical contacts in circuits prone to high current draw become loose through thermal cycling; this happens due to the heat and cool effect of each charging session. Retorquing connections is an actual maintenance requirement; it is not just an elective service interval. Networked chargers need firmware updates as running old software on networked devices creates security holes and session reliability problems. The warranty from manufacturers includes certain conditions whereby the coverage is voided if the install does not meet requirements or has been accessed by unlicensed individuals. The original electrical compliance certificate and warranty registration documents will protect your rights in such cases.
The Difference Between a Proper Installation and a Properly Installed Charger
A completed installation of an EV charger for a residential property has a set of steps that should be completed before handing over the job. At the end of the installation, an electrician needs to conduct a load test of the installation, confirm that the charging sessions start and end properly, teach the owner how to use the app and configure tariff scheduling and provide the emergency stop function information. Owner receives a certificate of electrical compliance, confirmed warranty registration, and product manual. If the electrician leaves without doing these things then this is an incomplete installation even if the charger is working.
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