fire extinguishers types of fires selection of extinguishers extinguisher information sizes ...
TRANSCRIPT
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Fire Extinguishers
Types of fires
Selection of Extinguishers
Extinguisher Information Sizes Location
Operation of an Extinguisher
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First line of Defense
Extinguish small fires
Knowledge of different extinguishers
Extinguishers make the difference
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Class “A”
Class “B”
Class “C”
Class “D” Class “K”
A
B
C
D
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Class “A” fires consist of materialsmade of wood, paper, plastic etc.
A
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Class “B” fires consist of flammableand combustible liquidsB
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Class “C” fires consist of energizedelectrical equipment.
C
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Class “D” fires consist of combustiblemetals.
*Rule of thumb: Usually if the materialends in “ium” it is a combustible metal
Use of the wrong type of extinguisher could result in violent explosions or intensify the fire.
D
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K This is a newer classification of fire. Class 'K' extinguishers are specifically designed to supplement fire suppression systems in kitchens. These extinguishers are designed for cooking oil, fat, and grease fires. Look for the letter 'K' symbol or the symbol to the left if you need to extinguish a class 'K' fire.
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What A, B, C, D, and K fires involve
Hazards involved with classes of fire
Selecting the proper extinguisher
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Various size extinguishers
Types of Extinguishers
A ABC BC D K
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Extinguisher sizes start at 2.5 lbs up to150 lbs
Look for applicable symbol on the extinguisher to insure you have the proper extinguisher.
The effective reach of most extinguishers is about 5 to 10 feet.
Always check the gauge when applicable.
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OrdinaryCombustibles
FlammableLiquids
Electrical
CombustibleMetalsB
CA
D
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• A, B, C Extinguishers
• DO NOT use on Class D fires
• Dry Chemical
A CB
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B C• Use only for flammable/combustible liquids or energized electrical equipment.
• Purple K – Type of dry chemical
• Carbon Dioxide (CO2) – Do not use in enclosed spaces
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D• Extinguishers only for combustible metals.
• Special purpose extinguishers
• Contact the fire department for assistance.
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Pull the pin
Aim the nozzle
Squeeze the handle
Sweep the nozzle from side to side
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= Pull the pin
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= aim the nozzle
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= squeeze the handle
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= sweep the nozzle horizontally
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Extinguisher Location:
Strategically placed
Located by primary exits
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Always approach with the wind at your back
Approach fire from unburned side if possible
Be aware of the surroundings
Always have an escape route planned Always call 911 if you have a fire, regardless of size
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Review:
Classifications of fires
Types of fire extinguishers
PASS
Tips for using extinguishers
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