The letter on a fire extinguisher indicates its classification: Class A puts out ordinary combustible fires (wood, paper, plastic, etc.) Class B puts out flammable liquid fires (oil, gas, petroleum, etc.) Class C puts out electrical fires.
Fire extinguishers are classified by fire type. The A, B, C rating system defines the kinds of burning materials each fire extinguisher is designed to fight. The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish.
What do the A B C ratings mean on Fire Extinguishers?
Fire extinguishers are classified by fire type. The A, B, C rating system defines the kinds of burning materials each fire extinguisher is designed to fight. The number in front of the A, B, or C indicates the rating size of fire the unit can extinguish.
Class C: These fires are caused by electricity and electrical equipment and also require a distinct extinguisher. Fires are only considered class C if electricity is still actively flowing to the item that is on fire. Once it’s shut off, the fire ceases to be considered a Class C.
People Also Ask what does the c mean on a fire extinguisher
What do the letters on a fire extinguisher mean?
The letter on a fire extinguisher indicates its classification: Class A puts out ordinary combustible fires (wood, paper, plastic, etc.) Class B puts out flammable liquid fires (oil, gas, petroleum, etc.) Class C puts out electrical fires
What does class a mean on a fire extinguisher?
Here’s how it works: The Class A size rating represents the water equivalency. Each number represents 1 ¼ gallons of water. For instance, 2A means the extinguisher is just as effective as 2 ½ gallons of water. 4A is equivalent to 5 gallons of water.
What is a Class C fire?
Class C: These fires are caused by electricity and electrical equipment and also require a distinct extinguisher. Fires are only considered class C if electricity is still actively flowing to the item that is on fire.
What does 4A 20B C mean on a fire extinguisher?
You might come across a fire extinguisher labeled 4A:20B:C. The numbers indicate the size rating of each extinguishing agent. Here’s how it works: The Class A size rating represents the water equivalency.
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TYPES OF FIRE AND FIRE EXTINGUISHERS | WHICH FIRE EXTINGUISHER TO BE USED ON WHICH CLASSES OF FIRE Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher