Have you ever noticed a sparking power board or smelled burning from an overloaded socket? Electrical fires can happen in an instant — and when they do, knowing the right way to respond could save lives and property.
One of the most common questions people ask is: “Which fire extinguisher should I use for an electrical fire?” The answer is straightforward — but just as important knows how to prevent those fires from starting in the first place.
In this blog, we will cover:
- The best fire extinguishers for electrical fires in Australia.
- Why some extinguishers are dangerous to use on electrical equipment.
- Practical fire safety tips for Wollongong homes and businesses.
- When you should call a licensed electrician instead of reaching for the extinguisher.
Why Electrical Fires Are Different
Electrical fires are caused by energised wiring, appliances, or power points. Unlike paper or wood fires, you cannot use water or foam extinguishers, because both conduct electricity and increase the risk of electrocution.
According to Fire and Rescue NSW, more than 40% of preventable house fires are caused by electrical faults or appliances in New South Wales. That makes electrical safety one of the most important areas for homeowners to stay on top of.
Fire Extinguisher Classes in Australia
Australia follows the AS 2444 standard for fire extinguisher classifications. Here’s a quick guide:
| Extinguisher Class | Fires It Covers | Safe for Electrical Fires? |
|---|---|---|
| Class A extinguishers | Wood, paper, textiles | ❌ No |
| Class B extinguishers | Flammable liquids (petrol, paint) | ❌ No |
| Class C extinguishers | Flammable gases | ❌ No |
| Class E extinguishers (or C/E combined) | Electrical equipment | ✅ Yes |
| Class D extinguishers | Flammable metals | ❌ No |
| Class F extinguishers | Cooking oils and fats | ❌ No |
For electrical fires, always look for extinguishers marked E (sometimes shown as C/E) on the label.
The Best Fire Extinguishers for Electrical Fires
Two types of extinguishers are widely used in Australia for electrical fires:
1. Carbon Dioxide (CO₂) Extinguishers
- How they work: Release a blast of CO₂ gas, displacing oxygen and smothering the fire.
- Advantages:
- No residue — won’t damage sensitive electronics.
- Effective for offices, server rooms, and switchboards.
- Best for: Areas with computers, appliances, and electronics.
2. Dry Chemical Powder (DCP) Extinguishers
- How they work: Release a fine powder that coats and smothers flames.
- Advantages:
- Affordable and widely available.
- Versatile — works on Class A (ordinary combustibles), Class B (flammable liquids), and Class E (electrical) fires.
- Considerations:
- Leaves powdery residue that can harm sensitive equipment.
- Best for: General household or business use in Wollongong.
CO₂ vs Dry Chemical Powder – Which Should You Have?
| Factor | CO₂ Extinguisher | Dry Chemical Powder Extinguisher |
|---|---|---|
| Residue | None | Powder (messy) |
| Safe for Electronics | ✅ Yes | ⚠️ Can cause damage |
| Price | Higher | Lower |
| Coverage | Electrical only | Multi-class (A, B, E) |
| Best For | Offices, server rooms, kitchens | Homes, garages, workshops |
For households in Wollongong, a Dry Chemical Powder extinguisher is often the best all-round option. For businesses with electronics, a CO₂ extinguisher is worth the investment.
Safety Tips for Electrical Fires
Even with the right extinguisher, safety comes first.
- Turn off the power at the switchboard if it’s safe.
- Stand back at least 2 metres before discharging the extinguisher.
- Aim at the base of the fire, not the flames.
- Never use water on an electrical fire.
- Call 000 immediately if the fire is spreading.
Important: A fire extinguisher is only a short-term solution. If you’ve had an electrical fire or noticed sparking outlets, you need a licensed electrician to find and fix the fault.
Preventing Electrical Fires in Wollongong Homes
At Stuart Johnston Electrical, we’ve seen how many electrical fires could have been prevented with simple maintenance. Here are a few proactive steps:
- Switchboard Upgrades: Old switchboards often lack modern safety switches.
- Safety Switches (RCDs): These cut power instantly when a fault is detected.
- Smoke Alarm Installations: Provide early warning before a fire spreads.
- Wiring Inspections: Identify overloaded circuits and faulty cabling.
- Appliance Testing & Tagging (for businesses): Keeps workplaces compliant and safe.
Learn more about our residential electrical services or book a wiring inspection in Wollongong.
Final Word: Extinguisher + Electrician = Complete Safety
The answer is clear: CO₂ and Dry Chemical Powder extinguishers are the best choices for electrical fires in Australia.
But while an extinguisher helps in an emergency, it doesn’t solve the underlying cause of the fire. That’s where we come in.
At Stuart Johnston Electrical, we’ve been helping Wollongong homes and businesses stay safe since 1995. From switchboard upgrades to safety inspections and emergency call-outs, our team of licensed electricians ensures your property is protected long before a fire risk occurs.
- Serving Wollongong & the Illawarra for over 25 years.
- Residential & commercial electrical specialists.
- Fast, reliable, and fully licensed electricians.
Call us today for expert electrical services in Wollongong — because prevention is always safer than cure.