How Long Will a Fire Extinguisher Last When in Use?
In 2019, house fires caused over $10 billion in property damage in the United States alone. While many factors contribute to the severity of a fire, having a working fire extinguisher on hand can make all the difference. But how long will a fire extinguisher last when in use? The answer depends on several factors, including the type of extinguisher, the size of the fire, and the user’s skill level.
Types of Fire Extinguishers
There are different types of fire extinguishers, each designed to fight specific types of fires. The most common types of fire extinguishers are:
- Water extinguishers: Water extinguishers are the most common type of fire extinguisher and are effective against Class A fires (fires involving ordinary combustibles such as wood, paper, and cloth).
- Dry chemical extinguishers: Dry chemical extinguishers are effective against Class B fires (fires involving flammable liquids such as gasoline, oil, and paint) and Class C fires (fires involving electrical equipment).
- Foam extinguishers: Foam extinguishers are effective against Class A and Class B fires.
- Carbon dioxide extinguishers: Carbon dioxide extinguishers are effective against Class B and Class C fires.
Fire Extinguisher Ratings
Fire extinguishers are rated according to their ability to put out fires. The rating is based on the amount of water or dry chemical that the extinguisher can discharge. A higher rating indicates a more powerful extinguisher.
The most common fire extinguisher ratings are:
- 1-A:10-B:C: This rating indicates that the extinguisher can put out a Class A fire that is 1 square foot in size and a Class B fire that is 10 square feet in size.
- 2-A:10-B:C: This rating indicates that the extinguisher can put out a Class A fire that is 2 square feet in size and a Class B fire that is 10 square feet in size.
- 3-A:40-B:C: This rating indicates that the extinguisher can put out a Class A fire that is 3 square feet in size and a Class B fire that is 40 square feet in size.
How Long Will a Fire Extinguisher Last?
The length of time a fire extinguisher will last depends on several factors, including:
- The type of extinguisher: Water extinguishers typically last for 30 to 60 seconds, while dry chemical extinguishers last for 10 to 15 seconds.
- The size of the fire: A smaller fire will require less extinguishing agent than a larger fire.
- The user’s skill level: An experienced user will be able to use an extinguisher more effectively and efficiently than a novice.
As a general rule of thumb, you should expect a fire extinguisher to last for about 10 seconds. This is enough time to put out a small fire, but it is not enough time to put out a large fire. If you are faced with a large fire, you should evacuate the area immediately and call the fire department.
Tips for Using a Fire Extinguisher
If you are ever faced with a fire, it is important to know how to use a fire extinguisher properly. Here are a few tips:
- Pull the pin: The first step is to pull the pin that is located at the top of the extinguisher. This will release the safety lock.
- Aim the nozzle: Point the nozzle of the extinguisher at the base of the fire.
- Squeeze the handle: Squeeze the handle to discharge the extinguishing agent.
- Sweep the fire: Move the nozzle back and forth across the base of the fire until the fire is extinguished.
Conclusion
Fire extinguishers are an essential safety device that can help to save lives and property. However, it is important to remember that fire extinguishers are only effective if they are used properly. By following these tips, you can increase your chances of putting out a fire safely and effectively.
Please share this guide with others who may benefit from it. If you have any questions about fire extinguishers or fire safety, please do not hesitate to contact us. We are always here to help.
