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Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
LoP Guest
lop guest
User ID: 443065
12-23-2018 10:46 PM

 




Post: #1
furious Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
Advertisement
A Tesla Model S ignited three times in one day, a northern California car owner and firefighters told ABC News.

While driving on a highway on Dec. 18, the driver got a tire pressure warning indicating a flat tire, and had the car towed to the nearby Los Gatos Tire and Auto Repair, Santa Clara County Fire Captain Bill Murphy told ABC News.

“I go in there, doing the paperwork and I start hearing a funny hissing sound,” the Tesla owner told ABC San Francisco’s station KGO-TV. “I thought, oh, it must be something going on in the shop next door.”

The owner turned around to see the car on fire, and firefighters were called to the scene.

Los Gatos Tire and Auto Repair did not immediately respond to ABC News’ for a request for comment.

“We extinguished the initial fire very quickly,” Murphy said. Shortly afterwards, the firefighters saw gas and steam coming off the car- which began venting gas, which Murphy said they believed was a sign of batteries burning. He said his crew again doused the car with water before flames could erupt and contacted Tesla, which recommended propping up the car to access its underbody where the battery is located, Murphy said. They continued to monitor the car for about 6 hours to ensure there was no lingering heat, Murphy added. His crew doused it with an estimated 2,000 gallons of water.

At 10 p.m., the car was moved to nearby tow yard, where it then reignited, Murphy said. The third fire was contained to the car, and did not spread. Firefighters spent nearly ten hours at the scene to ensure the battery would not ignite again.

https://abcnews.go.com/Technology/tesla-...d=59930420
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LoP Guest
lop guest
User ID: 438017
12-23-2018 10:48 PM

 




Post: #2
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
Shoulda quarantined it and let it burn..
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LoP Guest
lop guest
User ID: 479784
12-23-2018 11:03 PM

 




Post: #3
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
These hings dont have a battery cut off master switch you can simply turn to cut the power ?
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Uppity Me
Registered User
User ID: 479787
12-23-2018 11:06 PM

Posts: 17,738




Post: #4
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
Los Gatos' California - DEW directed at Tesla's?

Quote:Les pauvres n'ont-ils des Euros ?
Alors laissez les pauvres 'sh*t' dans les rues
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LoP Guest
lop guest
User ID: 471605
12-23-2018 11:14 PM

 




Post: #5
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
LoP Guest  Wrote: (12-23-2018 11:03 PM)
These hings dont have a battery cut off master switch you can simply turn to cut the power ?

It won't do anything to the individual packs only the main output.

Once one pack shorts and burns they can cascade from pack to pack.

This was something that he claimed had been dealt with by internal fireproof isolation which apparently never happened or was discontinued for some reason.

The packs I have seen online by repurposers and rebuilders show no internal fire retarding of any known kind.

Looking here the design apparently has gotten worse as there is no good isolation between the 12 sections which used to be separated packs

https://electrek.co/2016/02/03/tesla-bat...wn-85-kwh/
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LoP Guest
lop guest
User ID: 471605
12-23-2018 11:27 PM

 




Post: #6
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
"
Having radically simplified the cells, Tesla then designed simple and inexpensive fireproofing systems into its battery pack. Among many innovations, Tesla appears to have incorporated a form of intumescent goo that it sprays onto the interior of the pack to aid in fireproofing.
.
When exposed to heat, a chemical reaction occurs in the goo that helps cool the heat source, while simultaneously forming a fireproof barrier to protect the rest of the pack.
.
In testing by Tesla, this material often cooled cells experiencing a runaway reaction--to the point that many failed to ignite at all--and provided a fireproof barrier surrounding those that ignited."

https://forums.tesla.com/forum/forums/fi...ed-battery

Musk made that claim but it was apparently never implemented.

There is nothing like that in this actual teardown and you will notice there there is no real isolation between the sections



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LoP Guest
lop guest
User ID: 479784
12-23-2018 11:28 PM

 




Post: #7
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
LoP Guest  Wrote: (12-23-2018 11:14 PM)
LoP Guest  Wrote: (12-23-2018 11:03 PM)
These hings dont have a battery cut off master switch you can simply turn to cut the power ?

It won't do anything to the individual packs only the main output.

Once one pack shorts and burns they can cascade from pack to pack.

This was something that he claimed had been dealt with by internal fireproof isolation which apparently never happened or was discontinued for some reason.

The packs I have seen online by repurposers and rebuilders show no internal fire retarding of any known kind.

Looking here the design apparently has gotten worse as there is no good isolation between the 12 sections which used to be separated packs

https://electrek.co/2016/02/03/tesla-bat...wn-85-kwh/

I dont know why they cant have a fusible link between the packs .

They could also have a BiMetal heat activated switch that would cut the power when it is exposed to a pre determined exposure to heat .
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LoP Guest
lop guest
User ID: 471605
12-23-2018 11:34 PM

 




Post: #8
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
LoP Guest  Wrote: (12-23-2018 11:28 PM)
LoP Guest  Wrote: (12-23-2018 11:14 PM)
It won't do anything to the individual packs only the main output.

Once one pack shorts and burns they can cascade from pack to pack.

This was something that he claimed had been dealt with by internal fireproof isolation which apparently never happened or was discontinued for some reason.

The packs I have seen online by repurposers and rebuilders show no internal fire retarding of any known kind.

Looking here the design apparently has gotten worse as there is no good isolation between the 12 sections which used to be separated packs

https://electrek.co/2016/02/03/tesla-bat...wn-85-kwh/

I dont know why they cant have a fusible link between the packs .

They could also have a BiMetal heat activated switch that would cut the power when it is exposed to a pre determined exposure to heat .

They do have links between the 12 sections but that doesn't stop heat and flame from traveling section to section.

And each section has hundreds of cells each and there is no practical way to isolate each individual cell.

If one cell catches fire it pretty much invariably spreads across the entire section.

Not sure if any multi section fires have occurred as yet but looking at the construction it is an inevitability eventually
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LoP Guest
lop guest
User ID: 479784
12-23-2018 11:44 PM

 




Post: #9
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
Maybe they could use a plastic injected perimeter retaining ring that would melt and allow the battery pack to drop onto the roadway(the car would obviously now be stationary if it was on fire) . Where the car could be removed from the scene and its fire, if any, could be managed and the battery pack fire would then be more easily contained and handled.
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The ghost of capn´crunch
Registered User
User ID: 478808
12-24-2018 12:30 AM

Posts: 5,062




Post: #10
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
Uppity Me  Wrote: (12-23-2018 11:06 PM)
Los Gatos' California - DEW directed at Tesla's?

this

[Image: images?q=tbn:ANd9GcRPbhcJw8mRypdGTnCJHq_...tpxGqpjEbw]
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LoP Guest
lop guest
User ID: 449258
12-24-2018 12:36 AM

 




Post: #11
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
Maybe it is also completely foolish to put an electric car under a hose of water?

Would you throw water over any electric equipment?

It will short out!!!
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LoP Guest
lop guest
User ID: 471605
12-24-2018 12:48 AM

 




Post: #12
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
LoP Guest  Wrote: (12-24-2018 12:36 AM)
Maybe it is also completely foolish to put an electric car under a hose of water?

Would you throw water over any electric equipment?

It will short out!!!

They don't use water

They use non conductive foam
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LoP Guest
lop guest
User ID: 471605
12-24-2018 12:58 AM

 




Post: #13
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
LoP Guest  Wrote: (12-24-2018 12:48 AM)
LoP Guest  Wrote: (12-24-2018 12:36 AM)
Maybe it is also completely foolish to put an electric car under a hose of water?

Would you throw water over any electric equipment?

It will short out!!!

They don't use water

They use non conductive foam

Allow me to correct myself

They did indeed use water

https://driving.ca/tesla/auto-news/news/...ing-a-flat
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LoP Guest
lop guest
User ID: 471605
12-24-2018 01:05 AM

 




Post: #14
RE: Firefighters Work 16 Hours To Put Out Fires In Tesla Model S
Watching the video in the last post the fire did in fact travel from pack to pack

So much for their isolation claims
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