Water fire extinguishers have a class A rating and can be used to put out fires made of wood, paper, or cloth. Water fire extinguishers are not ideal for electrical fires since water is a conductor, and if used on this type of fire, you risk electrocution. They are also not ideal for combustible liquid or metal fires because they will not put …
However, it is always good to keep a class A fire extinguisher on hand or another type depending on what other flammable substances are around just in case the fire spreads to something else. Overall, the best way to prevent these electrical …
What is a Class A Fire Extinguisher Used For?
It is a simple solution for the simplest fire class, the Class A fire. Foam: This extinguishing agent helps both to cool and suffocate fires and are also largely used for Class A fires. Multipurpose Dry Chemical: Multipurpose …
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How does a Class A fire extinguisher work?
These extinguishers usually use water or dry chemical powders to blanket a fire and/ or absorb the heat. The heat of the fire is removed by the water component, while the oxygen is removed by the foam. Class A extinguishers are rated based on their water equivalency. Each A is matched to 1 1/4 gallons of water.
Are dry chemical fire extinguishers effective on Class A fires?
It should be noted that standard (BC) dry chemical fire extinguishers, using a sodium bicarbonate-based agent, are NOT effective on Class A, and are only intended for Class B and C fires. Clean Agent : These extinguishers use halogenated, or “clean” agents, which avoid contamination of the area and are more environmentally friendly.
What is a Class C fire extinguisher rating?
There is no numerical rating for Class C, Class D or Class K fires. For example, an extinguisher that is rated 3A:10B:C indicates the following: Intended for Class A, B, and C fires and contains 3.75 gallons of water extinguishing capacity, covers 10 square feet of area, and works on electrically charged equipment.
What happens if you use the wrong fire extinguisher?
Using a wrong fire extinguisher at best could prove ineffective, and at worst, could spread the fire or hazard (such as if a water extinguisher is applied to an oil fire or electrocute you if it is used on an electrical fire). Do You Have The Correct Fire Extinguisher?
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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