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31 March 2019

Major Battery plant Fires

Having worked with severe major Battery Plants in Industry and on Isolate Power back up facilities, {Uninterupible Power Systems} for over 30 years in many parts of the world, I know what is involved!

First here is an excellent definition of a large Battery Plant -
" A Battery plant is a large source of electrons, just are looking for somewhere to go in a hurry." The Battery Plant is much like a loaf of sliced bread where every time it is discharged it loses a slice.  Thus it is only going to support whatever the load  - based upon the power {the amount of electrons available} available.  This is based upon both size and type to support a given load for an expressed period!

There are several differences in Batteries as to both type and size of a said system!  NiCad are good long lasting cells - have been used in an extensive application in the Power Back up systems.  Lead Acid are generally less expensive and have a broad footprint in the Backup Power systems in the world. Gel Cells have a  limited application.  Lithium-ion batteries have been used inside electric vehicles, mainly because of their size and weight factors.

Yet with any Backup Battery Plant there is always a sever fire and or chemical danger!
Batteries can leak, and or/corrode, plus the one must calculate the necessary DC power needed for each type to get the best size, weight and overall operational and configuration for proper application and usage.

I have seen several the result of fires in large Battery Back up plants! It is highly destructive from both the heat as well as the Smoke and Chemical damage. These large battery plants require special monitoring equipment and fire retardant or other fire suppression systems. This includes proper ventilation and special barriers to limit such catastrophic destruction!

In the case of large mobile Battery plants, as with Ships, Airplanes, Automobiles, and other particular application of such Battery Plants.

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Following is an excerpt of a recent Auto Battery Fire in Fla!



After an out-of-control Tesla Model S plowed into a stand of palm trees on a highway median outside Fort Lauderdale last month, police rushed to put out the ensuing blaze using a department-issued fire extinguisher. It was a wasted effort. The car kept on burning after the crash, which killed the driver.

The police may not have known lithium-ion batteries inside electric vehicles, once ignited, can’t be put out with chemicals from a conventional extinguisher. The battery fires are susceptible to a self-destructive chain reaction known as thermal runaway, causing a feedback loop of rising temperatures. The Tesla fire stumped a series of first responders in Florida.

 Firefighters eventually doused the flames with water, which seemed to work, but the wrecked car reignited twice more after being towed away. That prompted what a police report later termed “extraordinary measures,” including a call to Broward County’s Hazmat unit for advice on stamping out the fire once and for all.

The accident illustrates the challenges faced by first responders unfamiliar with the special characteristics—and hazards—of electric vehicles’ powertrains. Safety experts say the only way to extinguish a lithium-ion battery inside a car is with thousands of gallons of water, much more than what it takes to stop a fire in a typical gasoline engine.
The other option is to just let it burn itself out. “It’s such a difficult fire because it takes so much water to put out,” said Robert Taylor, fire marshal in Davie, Fla., where the crash occurred.

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