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Fire Extinguishers & Extension Cords

Fire Extinguishers & Extension Cords. Objectives. Identify the different classes of fires on a worksheet with 100% accuracy. Identify the types of fire extinguishers on a worksheet with 100% accuracy. List the safety features of extension cords on a worksheet with 100% accuracy.

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Fire Extinguishers & Extension Cords

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  1. Fire Extinguishers & Extension Cords

  2. Objectives • Identify the different classes of fires on a worksheet with 100% accuracy. • Identify the typesof fire extinguishers on a worksheet with 100% accuracy. • List the safety features of extension cords on a worksheet with 100% accuracy.

  3. Reasons to Learn • Why should we learn how to use a fire extinguisher? • Why should we know the different types of fire extinguishers and classes of fires? • Why is it important to use extension cords? • Why is it important to understand safety of extension cords?

  4. Questions to Answer • What are the different types of fire extinguishers? • What are the classes of fires? • How do you use a fire extinguisher? • When is it important to use an extension cord? • What are some of the do’s and don’ts when using an extension cord?

  5. Fire Extinguishers • Important to have in any home, shop, or workplace. • Categorized into 4 types depending on what class of fire they are designed to put out.

  6. Classes of fires • Class A • Fires that involve ordinary combustible materials (paper, wood, cardboard, and most plastics) • Class B • Fires that involve flammable or combustible liquids (gasoline, kerosene, grease, and oil) • Class C • Fires that involve electrical equipment (appliances, wiring, circuit breakers, outlets) • Class D • Fires commonly found in a chemical laboratory • Class K • Fires that involve cooking oils, trans-fats, or fats in cooking appliances

  7. Types of fire extinguishers • Water extinguishers- filled with water and pressurized with air • Class A fires only • Dry chemical extinguishers- filled with foam or powder and pressurized with nitrogen • Class A, B, and C fires • BC • ABC • Carbon dioxide extinguishers- contains CO2 and highly pressurized • Class B and C fires

  8. How to use a fire extinguisher • http://videos.howstuffworks.com/howstuffworks/4656-how-fire-extinguishers-work-video.htm

  9. Extension Cords • Length of flexible electrical power cable with a plug on one end and one or more sockets on the other end • Incorporate safety features: • Polarized plug and receptacle • Grounded terminals • Power-on indicator • Fusible link • Residual-current device (ground-fault circuit interrupter) • Extension cords have either 2 or 3 wires • Hot wire & neutral wire • Hot, neutral, and ground

  10. Safety • Do’s • Check the wattage rating. • Keep extension cords away from water. • Pull on the plug, not the cord. • Unplug when not in use. • Don’ts • Plug one extension cord into another. • Overload cords. • Overheat an extension cord. • Cover a cord with anything.

  11. Review • Shop safety is very important! • Fire extinguishers • Classes of fires • Types • Extension cords • Safety

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