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[tm_pb_slide heading=”Fire Basics” background_position=”default” background_size=”default” background_color=”#ffffff” use_bg_overlay=”off” use_text_overlay=”off” alignment=”center” allow_player_pause=”off” text_border_radius=”3″ header_font_select=”default” header_font=”||||” body_font_select=”default” body_font=”||||” custom_button=”off” button_font_select=”default” button_font=”||||” button_use_icon=”default” button_icon_placement=”right” button_on_hover=”on” header_font_size=”20″ header_font_size_tablet=”30″ header_font_size_phone=”30″ body_text_color=”#dd3333″ body_font_size=”16″ body_font_size_tablet=”16″ body_font_size_phone=”16″]
Before we identify the types of fire extinguishers,
We need to learn a little about how fire works.
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A fire starts when all of the following occurs simultaneously:
There is a fuel or a combustible material
Enough heat to raise the temperature of the material to its ignition point
Sufficient amount of oxygen to support combustion
A Chemical reaction
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The type of fire that is produced depends on which materials are involved
[/tm_pb_slide][tm_pb_slide heading=”Types of Fire: Class A” background_position=”default” background_size=”default” background_color=”#ffffff” use_bg_overlay=”off” use_text_overlay=”off” alignment=”center” allow_player_pause=”off” text_border_radius=”3″ header_font_select=”default” header_font=”||||” body_font_select=”default” body_font=”||||” custom_button=”off” button_font_select=”default” button_font=”||||” button_use_icon=”default” button_icon_placement=”right” button_on_hover=”on” header_font_size=”20″ header_font_size_tablet=”30″ header_font_size_phone=”30″ body_text_color=”#dd3333″ body_font_size=”16″ body_font_size_tablet=”16″ body_font_size_phone=”16″]
Ordinary Combustibles
paper, cloth, wood, rubber, and many plastics
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Flammable Liquids
Fires in oils, gasoline, some paints, lacquers, grease, solvents, and other flammable liquids
[/tm_pb_slide][tm_pb_slide heading=”Types of Fire: Class C” background_position=”default” background_size=”default” background_color=”#ffffff” use_bg_overlay=”off” use_text_overlay=”off” alignment=”center” allow_player_pause=”off” text_border_radius=”3″ header_font_select=”default” header_font=”||||” body_font_select=”default” body_font=”||||” custom_button=”off” button_font_select=”default” button_font=”||||” button_use_icon=”default” button_icon_placement=”right” button_on_hover=”on” header_font_size=”20″ header_font_size_tablet=”20″ header_font_size_phone=”20″ body_font_size=”16″ body_font_size_tablet=”16″ body_font_size_phone=”16″]
Electrical Equipment
wiring, fuse boxes, energized electrical equipment, computers, and other electrical sources
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Metals
powders, flakes or shavings of combustible metals such as magnesium, titanium, potassium, and sodium
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Kitchen Fires
combustible cooking fluids such as oils and fats
[/tm_pb_slide][tm_pb_slide heading=”Types of Fire Extinguishers” background_position=”default” background_size=”default” background_color=”#ffffff” use_bg_overlay=”off” use_text_overlay=”off” alignment=”center” allow_player_pause=”off” text_border_radius=”3″ header_font_select=”default” header_font=”||||” body_font_select=”default” body_font=”||||” custom_button=”off” button_font_select=”default” button_font=”||||” button_use_icon=”default” button_icon_placement=”right” button_on_hover=”on” header_font_size=”20″ header_font_size_tablet=”20″ header_font_size_phone=”20″ body_font_size=”16″ body_font_size_tablet=”16″ body_font_size_phone=”16″]
Fire Extinguishers are designed to remove one of the three elements that produce a fire
The Label On Each Fire Extinguisher
Indicates Which Type of Fire It Is Designed To Extinguish
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Water Extinguishers
Class A (wood, paper, cloth, rubber, and certain plastics) fires only.
Removes the heat element of the fire triangle.
Don’t use water on flammable liquid or cooking oil fires. Doesn’t Work. There is a big risk of spreading the fire.
Don’t use water on an electrical fire. May cause electrocution if electrical devices are plugged.
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CO2 Extinguishers
Class B and C (flammable liquid and electrical) fires only.
Takes away the oxygen element of the fire triangle.
CO2is not effective for Class A fires because they may re-ignite after the CO2 fades.
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Dry Chemical Extinguishers
Primarily designed for B and C fires.
May be used on Class A, B, and/or C fires. Ensure label indicates this
Interrupts chemical reaction of the fire triangle.
Coats the fuel with a thin layer of powder which separates the fuel from the oxygen.
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Dry Powder Extinguishers
Class D (metals) fires.
Separates the fuel element from the oxygen element of the fire triangle.
May not effective for Class A fires because they may re-ignite after the powder fades.
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Wet/Dry Chemical Kitchen Extinguishers
Class K (oils and fats) fires.
Only required for commercial cooking system hood and fire suppression system
Separates the fuel element from the oxygen element of the fire triangle.
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