Electrical safety in the home — what to watch for and what warrants an urgent call

You don't need to be an electrician to keep your home electrically safe. You need to know what the warning signs look like, sound like, and smell like — and you need to know which ones mean "book a job this week" versus "switch it off and call now". Most serious electrical incidents are preceded by signs that someone noticed and didn't act on. This guide is about not being that household.

The warning signs worth knowing

Your electrical system tells you when something's deteriorating. The signals are easy to miss because they're often intermittent — a flicker here, a faint smell there — and it's tempting to wait and see if it sorts itself out. It won't.

A burning or fishy smell

A sharp, acrid plastic smell — some people describe it as fishy — coming from a power point, light switch, or the switchboard is one of the most important signs to act on. It's the smell of overheating insulation, and it means a connection is running hot enough to start cooking the surrounding plastic. This is a fire risk, not a maintenance item. Switch off the circuit at the board and don't use it until it's been looked at.

Warm or discoloured power points and switches

Run your hand near (not on) your power points and switches occasionally. A faceplate that's warm to the touch, or one that's gone brown or yellow around the edges, points to a loose or failing connection behind it. Loose connections arc, and arcing generates heat. Discolouration is the scorch mark that heat leaves behind.

Buzzing, sizzling, or crackling

A power point, switch, or switchboard should be silent. A buzzing or crackling sound is arcing — electricity jumping a gap it shouldn't be crossing. It's a precursor to both shock and fire, and it doesn't fix itself.

Tingles and small shocks

A tingle off a tap, a metal sink, an appliance casing, or a light switch is never normal and never minor. It means a fault is energising metalwork that should be at earth potential. Under the wrong conditions — wet hands, bare feet on a tiled floor — a tingle and a fatal shock are the same fault on a different day. Treat any shock, however small, as urgent.

Flickering and dimming lights

Lights that flicker or dim when the kettle, oven, or air conditioner kicks in can mean an overloaded circuit or a loose connection somewhere in the wiring. One dodgy globe is a globe. A whole circuit dimming, or flickering that's spread across rooms, is wiring — and worth a look before it gets worse.

A safety switch that keeps tripping

A safety switch (RCD) trips because it's doing its job — it's detected current leaking somewhere it shouldn't, often the early sign of a fault in an appliance or in the wiring. The occasional trip during a storm or from a failing appliance is one thing. A switch that trips repeatedly, or won't reset at all, is telling you there's a live fault on that circuit. Don't keep forcing it back on.

Scorch marks, melted plastic, hot cords

Browning around an outlet, a melted plug, a charred extension lead, a cord that's warm along its length — all of these are heat where there shouldn't be heat. They mean you've already had a problem; the only question is how far it's progressed.

What's urgent and what can wait

Knowing the difference keeps you safe without panicking over every flicker.

Switch it off and call straight away if you have any of these:

• A burning smell or smoke from any fitting, point, or the switchboard
• Sparks or visible arcing
• A power point or switch that's hot — not warm, hot
• Any electric shock or tingle from a tap, appliance, or metal surface
• Exposed or damaged wiring, especially anywhere a child could reach it
• Water in or around the switchboard, or a point that's been soaked
• A safety switch that won't reset, or trips the instant you reset it

If it's safe to get to the switchboard, turn off the affected circuit — or the main switch if you're not sure which one — and get a licensed electrician out. That's exactly the kind of job our emergency electrician line is for.

Book a job in the next few days — not an emergency, but don't let it ride — for things like:

• Lights flickering or dimming across a circuit
• A safety switch that nuisance-trips now and then
• A power point or switch that's faintly warm or slightly discoloured
• Globes that keep blowing on the one circuit
• An old fuse board with no safety switches at all

Everyday habits that keep a home safe

• Test your safety switches every three months. Press the test button on each RCD at the switchboard — it should trip off instantly. If it doesn't, or you don't have safety switches at all, that's a finding worth acting on. Safety switches are the single most important protection against electrocution in a home.
• Don't daisy-chain power boards and double adaptors. Stacking adaptors and plugging one board into another is a classic cause of overloaded, overheating outlets. High-draw appliances — heaters, irons, kettles — want their own wall socket.
• Treat extension leads as temporary. They're not permanent wiring. Don't run them under rugs or through doorways where they get crushed, and bin any that are nicked, taped up, or warm in use.
• Keep water and electricity apart. Never touch switches or appliances with wet hands, and keep portable electrical gear away from sinks, baths, and pool edges.
• Know the DIY line. In Victoria it's illegal — and dangerous — for anyone but a licensed electrician to do fixed electrical work, right down to swapping a light fitting. Changing a globe and resetting a tripped breaker is fine. Anything hardwired is not.

Older Melbourne homes carry extra risk

A lot of the older Melbourne homes were wired with very different standards, and the wiring doesn't announce its age. If your home was built before the 1990s and hasn't been looked at in a long time, a few specific things are worth knowing about:

• Ceramic fuse boards — older boards with rewirable fuses predate modern safety switches entirely.
• VIR and rubber-insulated cable — insulation from the 1950s and 60s that goes brittle and crumbles with age.
• Aluminium wiring — common in homes wired between roughly 1970 and 1985, and needs specific attention at its connections.
• Asbestos meter boards — a handling issue any time the board is worked on.
• Switchboard warning signs — what an ageing board looks like before it fails.

None of these means your home is unsafe today. They mean it's worth having someone test what's actually behind the walls rather than assuming.

Renting? These safety items are your landlord's responsibility

If you rent in Victoria, electrical safety isn't something you're expected to pay for or arrange yourself — it's a legal obligation on the rental provider. Under the minimum rental standards, a property must have:

• Safety switches (RCDs) on every power and lighting circuit. The deadline for power circuits passed on 1 August 2018, and for lighting circuits on 1 August 2023. Both are well overdue — a rental without full RCD protection is not compliant.
• Working photoelectric smoke alarms, correctly located and tested annually.
• An electrical installation in safe working order.

The full breakdown of what's required is in our guide to rental electrical obligations in Victoria. If you're a renter seeing any of the warning signs above, you're entitled to have them addressed — and the safest path is a documented rental electrical safety check arranged by the rental provider.

The important thing is to report it in writing, so there's a record. A phone call to the agent is easy to forget; an email isn't.

A template for reporting an electrical concern to your agent or landlord

Copy this, fill in the brackets, and send it to your property manager or landlord. Keep it factual and dated. The last line is optional — if you'd like to suggest an electrician for them to call, you're welcome to drop one in.

Subject: Electrical safety concern at [property address]

Hi [agent / landlord name],

I'm writing to report an electrical issue at [property address] that I'd like looked at by a licensed electrician.

What I've noticed: [describe what's happening — e.g. "a burning smell from the power point in the main bedroom", "the safety switch trips every time we use the laundry", "the light switch in the hallway is warm and has started buzzing"].

It started [when / how often it happens]. I'm concerned it may be a safety issue, so I haven't been using [the affected point / circuit / appliance].

Could you please arrange for a licensed electrician to inspect it? Given it's a potential electrical safety matter, I'd appreciate it being treated as a priority. As I understand it, rental properties in Victoria must have a safe electrical installation and safety switches on all circuits under the minimum rental standards.

Happy to provide access at a convenient time. Could you let me know the expected timeframe?

[Optional — You can reach David Millar on 0421 237 773 or david@millarelectrics.com.au who can perform an inspection for you and provide a report.]

Thanks, [your name] — [phone number]

If a genuine safety issue isn't addressed in a reasonable time, urgent repairs that affect safety can be escalated — Consumer Affairs Victoria sets out the renter's options, and an electrician's written report carries weight in that process.

When to book an inspection

You don't have to wait for a warning sign. If you've just bought an older home, you're a landlord wanting documented compliance, or you simply haven't had the wiring looked at in twenty years, an inspection tells you what condition the system is actually in — tested, not guessed. And if you are seeing any of the signs above, get it looked at rather than living with it.

If you're in Melbourne and want a straight answer on whether your home is electrically safe, book a safety inspection and we'll test it properly and tell you what we find.