1 / 26

Fire Extinguishers

Fire Extinguishers. 29 CFR 1910.157. Session Objectives. You will be able to: Identify different classes of fire Choose the appropriate type of extinguisher Use a fire extinguisher Inspect and maintain extinguishers. Fire Tetrahedron. Oxygen Fuel Heat Uninhibited chain reaction.

amy
Download Presentation

Fire Extinguishers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Fire Extinguishers 29 CFR 1910.157

  2. Session Objectives • You will be able to: • Identify different classes of fire • Choose the appropriate type of extinguisher • Use a fire extinguisher • Inspect and maintain extinguishers

  3. Fire Tetrahedron • Oxygen • Fuel • Heat • Uninhibitedchain reaction

  4. Class A • Ordinary combustibles: • Wood • Paper • Plastic • Garbage

  5. Class B • Flammable liquids: • Grease • Gasoline • Oil • Solvents

  6. Class C • Energized electrical equipment: • Appliances • Switches • Panel boxes • Power tools

  7. Class D • Combustible metals: • Magnesium • Titanium • Potassium and sodium • Pyrophoric materials

  8. Class K • Kitchen fires: • Added in 1998 • Grandfathered if installed before 1998

  9. Classes of Fires—Any Questions? • Any questions about the fire triangle or the different classes of fires?

  10. Extinguishing the Fire • Remove heat • Remove oxygen • Remove the fuel

  11. Water Extinguishers • Rated only for Class A fires • Spread a grease fire • Cause an electrical shock on a Class C fire • Increase a metal fire

  12. Dry Chemical Extinguishers • Best all-around choice • Help prevent reignition • Make a mess • Class BC contains sodium bicarbonate • Class ABC contains ammonium phosphate

  13. Carbon Dioxide (CO2) Extinguishers • Class BC-rated • Not effective on Class A fires • Should not be used on Class D—metal fires • Do not leave a residue • Are a good choice for computers or electronics • Must be used 3 to 8 feet from the fire

  14. Metal/Sand Extinguishers • Class D-rated • Powdered copper • Sodium chloride • Form an airtight crust over the fire

  15. Halon Extinguishers • Gas interrupts fire’s chemical reaction • Are Class BC-rated • Protect valuable electrical equipment • Have a range of only 4 to 6 feet • Halon production is now banned

  16. Halotron I Extinguishers • Replace Halon 1211 • Discharge as a liquid • Leave no residue • Are nonconducting • Are ideal for computers and electronics • Are Class BC-rated

  17. FE-36TMExtinguishers • Halon 1211 replacement • Less toxic • No ozone depletion • Class BC-rated

  18. Water Mist Extinguishers • Class AC-rated • Safety from electrical shock • Less scattering of burning materials • Hospital environments and clean rooms

  19. Types of Extinguishers— Any Questions? • Any questions about the different types of fire extinguishers?

  20. Fight-or-Flight Decision • Alarm has been pulled • Fire department has been called • Fire is small and contained • You can avoid the smoke • Exit is clear • Extinguisher is nearby • You have been trained to use the extinguisher

  21. PASS • Pull • Aim • Squeeze • Sweep

  22. Inspect Extinguishers • Monthly inspection • Extinguisher not blocked • Pressure is acceptable • Pin and seal are intact • No dents or damage

  23. Care and Maintenance • Keep extinguisher clean • Replace if damaged • Recharge immediately after use • Have hydrostatic testing done • Remove nonrechargeables after 12 years

  24. Locations and Signs • Readily accessible • 75 feet—Class A • 50 feet—Class B • 50–75 feet—Class C • 75 feet—Class D • Highly visible sign

  25. Types of Extinguishers— Any Questions? • Any questions about using, inspecting, and maintaining fire extinguishers?

  26. Key Points to Remember • Fire tetrahedron • Fire hazard class • Know your extinguishers • Fight or flight • PASS

More Related