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Fire Extinguisher for EV fire?

Discussion in 'Technical' started by Hybris, Oct 27, 2013.

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  1. Hybris

    Hybris Member

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    Thinking of adding both a fire extinguisher and detector in the garage where i will park and load my Tesla. What model of fire extinguisher would be recommended?
     
  2. dhrivnak

    dhrivnak Active Member

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    I think Elon said water is best option for the Model S batteries. You want to wash out the water soluble solvent.
     
  3. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

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    From reading the fire thread a main battery fire will require lots of water. Far more than any extinguisher can supply. The only extinguisher that would be useful would be one for a 12V battery or electrical system fire.
     
  4. AWDtsla

    AWDtsla Active Member

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    Did you have a fire extinguisher in all your gasoline cars as well?
     
  5. ChadS

    ChadS Petroleum is for sissies

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    For 20 years I have had fire extinguishers in my gas cars, and an extinguisher and detector in my garage. I too would be interested in thoughts on what, if anything, should be different for EVs. (After 20 years my extinguishers probably need replacing anyway!)
     
  6. neroden

    neroden Model S Owner and Frustrated Tesla Fan

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    Well, at its most basic, you want an extinguisher for an electrical fire, as opposed to an extinguisher for an oil fire. That's a fairly standard difference, and it's the reason they sell different extinguishers for kitchens (grease fire expected) rather than the rest of the house (expected to be electrical or wood).
     
  7. thefortunes

    thefortunes Member

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    Actually an even better question would be if he plans on running over large objects at high speed in his garage :rolleyes:
     
  8. Transepoch

    Transepoch Member

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    Just bikes and other random nonsense left out by the neighborhood kids. Then enter the garage after the alert system gives a warning to pull-over and avoid subjecting folks to all the OMG-TESLA-BBQ gawkers while discreetly taking care of business. :cool:
     
  9. montgom626

    montgom626 Active Member

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    I would walk away from any vehicle fire after removing passengers and pets.
     
  10. Tesla 940

    Tesla 940 Member

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    I agree - BUT...

    I agree with the pets - passengers are responsible for themselves.
     
  11. mnx

    mnx 2013 P85

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    I'm guessing he has kids and you don't??? I certainly wouldn't leave my 18 month old or almost 3 year old in the car to bake. :)
     
  12. Hybris

    Hybris Member

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    Well i did not park my gasoline car in the garage. Did not fill it up either. So if something goes wrong is it stupid tomhabe a detector and soemthing tomhabe a chance to estingiush a fire? Not sure why people add strange comments that is not very helpful...
     
  13. Takumi

    Takumi Member

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    #13 Takumi, Mar 30, 2015
    Last edited: Mar 30, 2015
    Anyone know how well this works on electrical fires?

    Engineering students use sound waves to put out fires
    [video]https://youtu.be/uPVQMZ4ikvM[/video]

    NM, answered my own question:
     
  14. CHG-ON

    CHG-ON Still in love after all these miles

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    I have a Halon extinguisher tank hanging from my ceiling with a temp sensor, much like the typical sprinkler heads you see in offices and homes. Yes, I am VERY paranoid of fire. Would that be effective if my Miss decided to light up? Unlikely as that may be.

    And I am actually asking seriously....
     
  15. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

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    The FAA highlighted lithium-ion problems and strategies for dealing with lithium battery fires in a Safety Alert for Operators (SAFO 09013). The FAA recommends: “Utilize a Halon, Halon replacement or water fire extinguisher to prevent the spread of the fire to adjacent battery cells and materials. Pour water, or other non-alcoholic liquid, from any available source over the cells immediately after knockdown or extinguishment of the fire.” The idea is to cool the battery to prevent re-ignition and propagation to other cells. While water reacts with lithium, the amount in the electrolyte is sufficiently small that it is worth the cooling effect of the water when trying to stop the runaway, according to the FAA.
    Lithium-ion batteries are often encased in hard plastic shells, however, and this hampers efforts to drown a lithium fire with water, according to Tom Connolly, president of Industrial Fire Products, Mount Joy, Pa. Connolly’s company manufactures the Fire-Fighter Hot-Stop L fire-containment bag that Ship-it AOG distributes. The problem with water, he told AIN is that it can’t penetrate the plastic case around a battery and won’t put out the fire until the case fails fully, by which time the thermal runaway has proceeded nearly to conclusion, generating high temperatures. Placing the burning device in the Hot-Stop bag contains the thermal runaway safely as the fire burns itself out. The bag does not snuff out the fire, he pointed out. “From the flight crew standpoint, is it better to package a passenger’s device [into the containment bag] that is running hot or smoking or to begin pouring water on it that cannot penetrate the battery casing yet? The feedback we receive is that they want the item in question contained now, guesswork eliminated and the ‘event’ contained.”




    It would need one heck of a Hot-Stop bag though.
    Whatever you do, don't cut open the battery case because the batteries are designed to discharge fire in a certain way and opening the top of the case to pour water in (for example) just makes it worse.
     
  16. 1208

    1208 Active Member

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    Is your garage made of concrete blocks or cinder blocks as you call them? Just wondering because I know you frame houses over there with wood. If the partition walls between garage and home are made of wood perhaps you should replace them with concrete blocks.

    In the UK garages that are attached to domestic property are made of concrete blocks or bricks as they are better at preventing fire spreading than wood. We went off wooden framed houses in 1666.
     
  17. CHG-ON

    CHG-ON Still in love after all these miles

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    A much better design. No in CA, the only requirement that I am aware of is drywall between the garage and the living space. Not much peace of mind there.

     
  18. steph280

    steph280 Member

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    I keep a lot of lithium batteries both for my side business and hobby. As I understand it, lithium fires requires type D extinguishers which are expensive, and can not contain fire from large lithium stockpile. So the common consensus is to keep the standard type ABC extinguishers to stop the fire from spreading to surrounding non-lithium material, and just let the lithium burn itself out.

    I believe California building code requires a 20 minutes fire proof isolation between garage and living area. Most garage access doors are metal and self closing for this reason.
     
  19. UncaNed

    UncaNed Member

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    News reports got me to thinking I should get a new extinguisher in my garage anyway... Mostly to protect my Tesla from fire caused by something non-Tesla. What is the best kind and what size? What's the best alarm system?
     
  20. arnis

    arnis Member

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    In case of Li-ion battery thermal runaway, it is not possible to stop it without removing oxygen for long period.
    In case of garage it should be easy to close windows and garage door airtight. This will starve fire until fire department
    arrives. It will be more effective than having two sprinklers in that garage.
    The most important thing to preserve is house, not ruined vehicle.
    Vehicle is not salvageable in any HV battery thermal runaway event.
    There is not enough water output to put it out with water (pipes are too small). Sprinklers will stop fire from spreading.

    Though here fire extinguisher is mandatory in every vehicle. 1kg, pretty small one, but it will put out engine compartment
    or 12V electrical fires easily.
    Also smoke detector is mandatory here. It's foolish not to have it in every reasonable room, incl garage.

    PS: do not install fire extinguisher into frunk and also not under trunk floor.
     

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