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718 Fire Prevention Plans
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Combustibles in Batteries

Companies and government agencies are increasing the use of electric vehicles (EVs) in the workplace.

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Electric vehicles (EVs) include: autos, trucks, all-terrain-vehicles (ATVs), scooters, and bikes There are over 1 million electric and plug-in cars on U.S. roads.

Reduce the Risk

For lithium-ion battery fires in many EVs, Class D fire extinguishers can be effective, as it's designed for flammable metal fires. However, these are less common in general consumer settings. However, given the complexities and potential hazards of EV fires, the best course of action is to evacuate the area, call emergency services, and allow trained professionals to handle the situation.

Lithium-ion Mobile Phones

Lithium-ion battery fires in mobile phones pose several dangers. If punctured, damaged, or exposed to high temperatures, lithium-ion batteries can undergo a process called "thermal runaway," potentially causing the battery to explode or produce flames that can release toxic fumes, including hydrofluoric acid and other harmful chemicals, which are harmful when inhaled and can irritate the eyes and skin. Direct exposure to the heat can cause severe burns. A burning phone can ignite nearby flammable materials, leading to larger fires that can damage property and endanger lives. If not disposed of properly, damaged batteries can leak harmful substances into the environment.

Extinguishing a lithium-ion phone fire requires extreme caution due to the volatile nature of the battery. Here's a brief guide:

  • Do Not Use Water: Water can react with the burning lithium, making the fire more intense. Instead, use a Class D fire extinguisher, which is designed for metal fires.
  • Smothering the Fire: If you don't have a Class D fire extinguisher on hand, try to smother the fire using a non-flammable material, like sand or baking soda. This deprives the fire of oxygen.
  • Safety First: Always prioritize personal safety. If the fire is spreading quickly or you're unsure about how to tackle it, evacuate the area immediately and call emergency services.
  • Ventilate the Area: Lithium-ion battery fires can release toxic fumes. Once the fire is out, ensure the area is well-ventilated to disperse any harmful gases.
  • Handling the Device: Wait for the device to cool down completely before attempting to handle or dispose of it. Even after the fire is out, the battery remains hazardous and can reignite.
  • Seek Professional Disposal: After a fire, the phone should be properly disposed of at a hazardous waste facility. Do not throw it in regular trash.

For more information on preventing lithium-ion battery fires, visit OSHA's Preventing Fire and/or Explosion Injury from Small and Wearable Lithium Battery Powered Devices.

Knowledge Check Choose the best answer for the question.

2-6. What class of fire extinguisher works best for fighting lithium-ion fires?