What Fire Extinguisher Is Used for Electrical Fires?

Introduction

When it comes to fire safety, it’s not a one-size-fits-all approach. Electrical fires are unique because they involve live electrical equipment. Pouring water on such fires, for instance, is a big no-no—it could conduct electricity and cause serious harm. But don’t worry! There are specialised fire extinguishers designed to safely and effectively put out these dangerous blazes. Understanding which fire extinguisher to use for electrical fires is key to protecting yourself, your equipment, and your surroundings. Let’s dive into the types of fire extinguishers and explore how to handle these potentially devastating fires.

Types of Fire Extinguishers for Electrical Fires

When dealing with electrical fires, you can't afford to use the wrong type of extinguisher. It's not just about putting out the flames; it's about doing so without putting yourself or others at risk. Here’s a breakdown of the types of extinguishers suited for electrical fires:

1. CO2 (Carbon Dioxide) Fire Extinguishers

CO2 fire extinguishers are commonly used for electrical fires and are one of the safest options out there. The carbon dioxide in these extinguishers works by displacing oxygen around the fire, effectively smothering the flames without leaving any residue that could damage equipment.

  • Ideal for: Electrical fires involving computers, office equipment, and machinery.
  • Pros: Leaves no residue, safe for use on live electrical equipment.
  • Cons: Limited cooling effect, so there’s a risk of re-ignition.

For example, the Firechief 5kg CO2 Fire Extinguisher is specifically designed for electrical and flammable liquid fires. Made from durable, lightweight steel alloy, it’s easy to handle and offers a 9-second discharge time, making it an ideal choice for offices and industrial areas.

2. Dry Powder Fire Extinguishers

These extinguishers are multi-purpose and can be used on various fire types, including electrical fires. The dry powder works by interrupting the chemical reaction within the fire, effectively stopping it in its tracks.

  • Ideal for: Mixed fire risks that include electrical equipment.
  • Pros: Versatile, can be used on Class A, B, and C fires.
  • Cons: Leaves a powdery residue that may damage sensitive electronics.

While dry powder extinguishers are effective, they can be a bit messy. The powder can seep into electronics, potentially causing further issues once the fire's been put out. Use them with caution around delicate equipment.

3. Lithium-Ion Battery Fire Extinguishers

With the increased use of lithium-ion batteries in everything from smartphones to power tools, fires involving these batteries are becoming increasingly more common. Special extinguishers, like the Firechief 6L Lithium-Ion Battery Fire Extinguisher, are designed to tackle fires caused by overheating or damaged lithium-ion batteries.

  • Ideal for: Fires originating from lithium-ion battery devices, such as laptops, electric scooters, and smartphones.
  • Pros: Specifically designed for high-temperature fires, rapidly cools the battery and prevents re-ignition.
  • Cons: Not suitable for fires unrelated to lithium-ion batteries.

The Firechief 6L Lithium-Ion Battery Fire Extinguisher stands out because it doesn’t just put out the fire; it also cools the burning material and reduces the risk of the fire reigniting.

Why CO2 Extinguishers Are the Best Bet for Electrical Fires

So, what fire extinguisher is used for electrical fires most effectively? More often than not, CO2 fire extinguishers come highly recommended. Here’s why:

  1. Non-Conductive Properties: Since carbon dioxide is a gas, it doesn’t conduct electricity. This makes it much safer to use on live electrical equipment than water-based extinguishers.
  2. No Residue: Unlike foam or powder extinguishers, CO2 leaves no residue behind. This is crucial in settings where delicate equipment, such as computers or servers, are involved.
  3. Quick Discharge: CO2 extinguishers quickly smother the fire by removing the oxygen supply. The Firechief 5kg CO2 model, for example, has a 9-second discharge time—long enough to effectively douse the flames.

However, be cautious with CO2 extinguishers in confined spaces, as the rapid release of carbon dioxide can cause breathing difficulties.

Choosing the Right Fire Extinguisher for Your Needs

When picking a fire extinguisher for electrical fires, consider the environment and the equipment you need to protect. Here are some tips to help you make the right choice:

  • Assess the Fire Risks: If your workspace is filled with electronic devices, a CO2 extinguisher is a wise choice. However, if there are also risks from other fire types, such as flammable liquids, consider a multi-purpose extinguisher.
  • Evaluate the Area: If lithium-ion battery devices are commonly used, such as in tech-heavy offices or workshops, having a lithium-ion battery fire extinguisher on hand is a smart move.
  • Look for Certifications: Make sure the extinguisher is certified by relevant safety bodies, such as BSI Kitemark and CE. For instance, both the Firechief 5kg CO2 and the Firechief 6L Lithium-Ion Battery extinguishers meet these standards, ensuring quality and reliability.

How to Use a Fire Extinguisher Safely on Electrical Fires

Using a fire extinguisher might seem straightforward, but when electrical equipment is involved, you need to be extra cautious. Follow these steps to ensure you’re using the extinguisher safely:

  1. Pull the Pin: This will break the tamper seal and allow you to operate the extinguisher.
  2. Aim at the Base of the Fire: Don’t aim directly at the flames; aim at the source of the fire.
  3. Squeeze the Handle: This releases the extinguishing agent. Be prepared for a short burst if using a CO2 extinguisher, as the discharge time is limited.
  4. Sweep Side to Side: Move the nozzle in a sweeping motion to cover the area. Continue until the fire is fully extinguished.

Before you even think about tackling an electrical fire, ensure the power supply has been switched off if possible. This minimises the risk of electrical shock.

FAQs About What Fire Extinguisher Is Used for Electrical Fires

1. Can I use a water extinguisher on an electrical fire?

No you can't, water extinguishers conduct electricity, which can lead to electric shock and worsen the fire. Stick to CO2 or dry powder extinguishers for electrical fires.

2. Why is a CO2 extinguisher preferred for electrical fires?

CO2 extinguishers don’t conduct electricity and leave no residue, making them safe for use on sensitive electrical equipment.

3. Is a dry powder extinguisher safe to use around electronics?

While it is effective, the powder can damage sensitive electronics, so it’s best used as a last resort in any case.

4. Do lithium-ion battery fires need a special type of extinguisher?

Yes, lithium-ion battery fires can reach very high temperatures and require a specific extinguisher, like the Firechief 6L Lithium-Ion Battery Fire Extinguisher, designed for such fires.

5. How often should fire extinguishers be checked?

Regular maintenance checks should be carried out every month, with a professional service at least once a year.

Conclusion

Knowing what fire extinguisher is used for electrical fires is a critical part of fire safety. While CO2 extinguishers are generally the best choice, other options like dry powder and lithium-ion battery extinguishers also play important roles, depending on the type of risk present. It’s essential to choose the right extinguisher and understand how to use it safely. Equip yourself with the proper tools and knowledge, and you’ll be well-prepared to tackle an electrical fire if it ever occurs.

Whether you’re protecting an office space with the Firechief 5kg CO2 Fire Extinguisher or securing a tech-heavy environment with the Firechief 6L Lithium-Ion Battery Fire Extinguisher, make sure you’re ready to put safety first. 

Still unsure? Contact Us today and we'll be delighted to assist you.

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