A dry chemical fire extinguisher is a fire extinguisher designed to put out fires of several types. They contain chemicals that can smother flames and coat fuel with a thin layer of dust. That helps extinguish fires on the spot.
The idea behind a dry chemical fire extinguisher is to blanket the fuel with an inert solid (similar to dirt or sand). A dry chemical extinguisher sprays a very fine powder of sodium bicarbonate (NaHCO3, baking soda), potassium bicarbonate (KHCO3, nearly identical to baking soda), or monoammonium phosphate ( (NH4)H2PO4).
What are dry chemical fire extinguishers?
A Dry Chemical Fire Extinguisher is the most common type used in Australia. It is also known as a DCP, BE, or ABE fire extinguisher. To determine …
People Also Ask what are dry chemical fire extinguisher’s designed to do
What is a dry chemical fire extinguisher?
A dry chemical fire extinguisher is a fire extinguisher designed to put out fires of several types. They contain chemicals that can smother flames and coat fuel with a thin layer of dust. That helps extinguish fires on the spot. What Do the Markings Mean on a Dry Chemical Fire Extinguisher?
What is inside a fire extinguisher filled with?
Most ABE extinguishers are filled with monoammonium phosphate which has the ability to flow easily and melt so it continues to cover the flames as it moves over the fire. BE powder does not melt so it is ineffective against class A fires.
How do fire extinguishers work?
Each type of extinguisher works attempting to remove one of the elements that are needed for fire to flourish. Most ABE extinguishers are filled with monoammonium phosphate which has the ability to flow easily and melt so it continues to cover the flames as it moves over the fire.
What are the different types of fire extinguishers?
This rating of fire extinguisher ensures a variety of fires can be put out including, paper, cardboard, wood, people, flammable liquids, petrol, diesel, computers and office equipment. BE Type handles fire classes B, E, and F and fights flammable liquids, petrol, diesel, electrical, office equipment, and cooking oil fires.
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DRY CHEMICAL POWDER FIRE EXTINGUISHER WHAT WHERE AND WHEN TO USE IT Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher