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. To achieve a Class “A” rating, the extinguisher must be capable of putting out the wood …
The importance of fire safety is oftentimes overlooked in favor of other everyday concerns. Changing the batteries in your fire alarm panel, locating the optimal evacuation route in your building, and ensuring you have the proper fire extinguishers in the most advantageous spots all trickle to the bottom of our never-ending to-do lists.
What Are The 5 Classes of Fire Extinguishers? – SelectSafety
The 5 Classes of Fire Extinguishers. There are five different fire extinguisher classes that match up with the different types of fires: Class A. Class B. Class C. Class D. Class K. Mult-Class: Class ABC, Class BC, etc. Each rating describes the type of fire the extinguisher can effectively fight.
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What is a Class “A” fire extinguisher?
To achieve a Class “A” rating, the extinguisher must be capable of putting out the wood crib, wood panel and excelsior (shredded paper) tests. Ratings are based on the size of the material that can be repeatedly extinguished.
What chemicals are used in a Class B fire extinguisher?
The primary chemical used to fight these fires is monoammonium phosphate, because of its ability to smother fires in these types of materials. Fire extinguishers with a Class B rating are effective against flammable liquid fires. These can be fires where cooking liquids, oil, gasoline, kerosene, or paint have become ignited.
What are Class B and Class C fires?
Class B – a fire started with flammable and combustible liquids and gases such as gasoline and paints. Class C – a fire started by energized electrical equipment such as power transmission cables or wiring.
What is a cartridge-operated fire extinguisher?
Cartridge-operated extinguishers are designed to be rechargeable and separate the propellant (nitrogen, CO2, or dry air) and the extinguishing agent into different cylinders. These types are well-suited for heavy equipment industries and construction sites. They are also built robust and able to withstand harsh environments.
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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