Presentation on theme: "for Fairfax County DPWES"— Presentation transcript:
1 for Fairfax County DPWES An Introduction to “Fire Extinguishers”
2 Legal Basis for this Training Occupational Safety and Health Administration (OSHA) Occupational Safety and Health Standards 29 CFR Part Subpart “L” - Fire Protection Standard “Portable fire extinguishers”
3 (b)(1)Where the employer has implemented a written fire safety policy which requires the immediate and total evacuation of employees from the workplace …and which includes an emergency action plan and fire prevention plan…and when extinguishers are not available in the workplace, the employer is exempt from all requirements of this section unless a specific standard in Part 1910 requires that a portable fire extinguisher be provided.
4 (g)(1)Where the employer has provided portable fire extinguishers… the employer shall provide an educational program to familiarize employees with general principles of fire extinguisher use and the hazards involved with incipient stage fire fighting.
5 OBJECTIVES: After this training you should be able to: IDENTIFY 3 common classes of firesSELECT the proper type of extinguisherEVALUATE when it is safe tofight an “early-stage” fire, and;APPLY the “P.A.S.S. method tooperate a portable extinguisher.
6 UNABLE to evaluate a fire UNAWARE of DANGER due to... UNTRAINED PEOPLE Cannot use a fire extinguisher safely because they are:UNABLE to evaluate a fireUNAWARE of DANGER due to...LACKING JUDGEMENT regarding:Safe and correct use of, andLimitations of portable extinguishers
7 WHY UNTRAINED PEOPLE Can’t use a fire extinguisher safely (continued): INEXPERIENCEDDon’t know about the proper type of extinguisherDon’t know how to make a “Fight or Flight” analysisUnfamiliar with the “P.A.S.S. method”
8 COMMON FIRE CLASSIFICATIONS “Ordinary” combustiblesPaper, wood, rubber, plastics and textiles.“Flammable liquids”Oil, gasoline, solvents“Energized circuits”Electrical equipmentand computers
9 HOW THEY WORK: Works by cooling. Numerical rating indicates amount of agent, duration, and range of discharge on test fires.Area of Class A fire which a “non-expert” can extinguish, with proper training1-A is equivalent on Class-A fire to five liters of water.2-A contains has twice as much extinguishing agent.
10 HOW THEY WORK: Works by blanketing the fuel. Interrupts chemical reaction at fuel surface.Class B ratings signify the area in square feet of flammable liquid fire a unit will extinguish when used, by a trained, “non-expert.”
11 HOW THEY WORK: Class “C” units have no numerical rating. A Class “C” rating doesn’t imply any capacity.Only indicates that the extinguishing agent is non-conductive, safe on energized equipment.Works by displacing oxygen, smothering fire.
12 Portable Fire Extinguishers Can be CARRIED to a fireWeigh from 5 to 30 poundsNFPA Class and RatingArabic numerals according to efficiency - 4A extinguishes twice as much Class A fire as 2A
13 Portable Fire Extinguishers LIMITED IN:Capacity to 25 lbs. of extinguishing agentRange - Typically 3 to 15 feetDuration - Discharge their contents in only 5 to 30 seconds!
14 Extinguisher Common features Locking pinCarrying handle / operating leverPressure gaugeLabel :Type (Water, C02, Dry Chemical)Classification (A, B, C)NFPA capacity RatingInstructionsDischarge nozzle or horn
15 COMMON TYPES OF FIRE EXTINGUISHERS: WATERDRY CHEMICALCO2 and Halon
16 WATER Water + CO2 propellant ONLY for Class fires wood / paper, etc. Spreads burning liquids!DANGER of electric shock if used on on live circuits!
17 DRY CHEMICAL MULTI-PURPOSE RATED EitherOrBest for general use:Reduced risk of re-ignitionA 10 lb. unit empties in 8-10 secs.Effective range of 6 ft. to 15 ft.
18 C02 - Rated DISPERSES QUICKLY! Best on burning liquids / electrical SHORT range - 3 to 8 ft.10- pound unit empties in 5 to 10 seconds!Use short spurts!DISPERSES QUICKLY!Continue applying after the fire is out!Unit gets VERY cold - hold properly
19 Halon Best for computers / electronics Weight-for-weight TWICE as effective as C02No residue, easy clean-upVERY SHORT range, 3 to 6 ft.Like C02, Discharges QUICKLY!Like C02, Disperses QUICKLY!Continue after flames are extinguished
20 In case of burning odor or smoke: Call 911 First!Notify Security - X 43434Disconnect EquipmentRemove combustibles, if you can do so without danger to yourselfNotify Floor Monitorsand Emergency Safety Coordinator
21 REACT upon discovery of fire or smoke Remove persons in immediate danger!Ensure doors are closed! (confine fire/smoke)Activate the building alarm !Call the Fire Department !Treat ALL fires as DANGEROUS!Continue a complete building evacuationDo not attempt to fight a fire UNLESS you are OSHA certified in use of a fire extinguisher !
22 Use a portable extinguisher ONLY if the: Building is being evacuated (Fire alarm has been pulled)Fire Department has been called (Dial 911!)Fire is NOT spreading (small and contained)EXIT IS CLEAR (fight fire with your back to an exit )Proper extinguisher is at hand, and...You have been trained and know how to use it!You use “Buddy System” - have someone back you up!Get assistance BEFORE trying to fight a fire!
23 PULL AIM SQUEEZE SWEEP P.A.S.S. Remember the PASS word: 1) Keep your back to a clear escape route, 2) Stand back 6 to 8 feet from the fire, 3) Then >>:
28 OK, It’s out… Now What? WATCH the fire area If the fire flares up again repeat!If you can’t control the fire, LEAVE immediately!Call the fire department to inspect the scene!Recharge or replace any used fire extinguisher!
29 Sources for further information: OR . . .Contact Fire PIO-LSE at
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