Development from Austria
Battery is impaled with a water lance: New extinguishing system for burning e-cars
Rosenbauer International AG Burning e-car batteries: Austrians develop clever extinguishing system
When e-cars burn, it becomes complicated for the fire brigade. But large quantities of extinguishing water or even water -filled containers in battery burns are not absolutely necessary – there is a new trick.
It is important to cool the battery, which can often only be ensured by a lot of water. However, the Austrian fire service device manufacturer Rosenbauer has now presented a new product that is supposed to reliably extinguish a burning battery with little water.
Cool burning batteries directly
The fire service device manufacturer Rosenbauer is launching a new extinguishing system for lithium-ion batteries in electric vehicles. The system should be able to delete high-voltage batteries safely and efficiently. The linchpin is as direct cooling of the battery modules or the cells within the modules and thus an interruption of the chain reaction of the burning cells.
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The system consists of two main components, a deletion and a control unit that are connected to each other with hoses. The fire -fightingness is positioned directly on the battery and – if necessary – supported on the body or other points. The firefighters can safely activate the system via the control unit from around eight meters away from the vehicle, whereupon a special extinguishing bucket is driven into the battery with a force of several tons. There the extinguishing water is to get directly into the interior of the battery through a perforated fire lock. The water should then fill the battery completely and cool it efficiently. Rosenbauer promises in a press release that the amount of water in a normal tank fire should be sufficient in order to be able to extinguish the battery.
LOsch-lance is driven into battery
So far, for the cooling of a burning battery that could ignite again without this cooling, a lot of water has often been needed. Sometimes burning electric cars are even lifted in a container full of water for 24 to 48 hours to prevent new inflammation. However, this was usually not necessary, said Christoph Emrich, fire chief at the Munich fire brigade. Instead, it is important to cool the battery, which partly realizes the Munich fire brigade via a jet tube that is attached to the underbody of the vehicle.The new invention of Rosenbauer works very similarly, albeit more specialized – but the usability ensures more security for the firefighters from a greater distance. The preferred position for the Rosenbauer fire system is between the road and the vehicle when the vehicle is on all four wheels. However, it is also possible to insert the system via the indoor and trunk or, with vehicles on the side or on the roof, from the top.
After the battery has been sufficiently cooled, the affected vehicle can be removed. According to Rosenbauer, the extinguishing system can remain in the battery during transport and at the quarantine area and can be quickly activated at any time.
This article was written by Tobias Stahl
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