User Manual
Siemens Switzerland Ltd 6
Practical experience
Fire detection
One of the first indications of potential thermal runaway
is the generation of electrolyte gases, caused by excessive
overheating of an individual cell
The ability to detect these gases as early as possible is
paramount in being able to intervene before large scale
fire damage can occur. An appropriately positioned and
dimensioned ASD system is able to recognize such gases
at a very early stage of the thermal runaway process, in
spite of the high air-flow rates typically encountered in
high density battery cooling systems.
Practical experience has demonstrated that an FDA241
ASD-system (with its patented dual wavelength blue and
IR sensors) can provide reliable excellent early detection.
Targeted extinguishing
Having detected a potential thermal runaway situation,
the next step is to minimize any fire damage and prevent
the possibility of thermal runaway propagation.
Experience has shown that automated activation of an
integrated Sinorix N2 system can provide the ideal
solution.
Flooding with an N2 design concentration of 45.2%
ensures that the oxygen concentration remains below
11.3%. Any developing fires are swiftly extinguished and
re-ignition effectively prevented. In addition, the
extinguishing agent itself does not cause any damage to
equipment or present any danger to personnel.
2
Status December 2019, VdS certificate officially handed
over at VdS Brandschutztage, Cologne, Germany
An integrated solution
It is the “integrated” combination that makes the
difference. The combination of early detection, alarming
and efficient targeted extinguishing (as described above)
is the most effective solution for the protection of
stationary Li-ion battery energy storage systems available
today.
This solution ensures optimal fire protection for battery
storage systems, protecting valuable assets against
potentially devastating fire-related losses.
Siemens is the first and only
2
company that is certified
by VdS (VdS Schadenverhuetung GmbH) for our
protection concept for stationary Li-ion battery energy
storage systems.
Do you want to know more about the application? Check
out our website – including White paper!
www.siemens.com/firesafety-applications