Huawei Smart String ESS LUNA2000-200KWH-2H1 - Page 47

LUNA2000-200KWH-2H1 Smart String ESS
User Manual
2 Product Description
Issue Draft (2022-10-30)
Copyright © Huawei Technologies Co., Ltd.
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2. The extinguishant is perfluorohexane which features high insulation, environment
friendly, and quick fire extinguishing and cooling.
Working Principles
The rack-mounted integrated gas fire extinguisher adopts the thermo bulb and electric startup
mode.

When the temperature inside the cabinet is higher than the temperature of the thermo
bulb for a certain period of time, the thermo bulb breaks to start the fire extinguisher.

When the external fire suppression system detects a fire, it triggers the electric start
signal of the fire extinguishing device and opens the storage device of the extinguishant.
The extinguishant is released through the nozzle to cool down and put out the fire.

The thermo bulb can also work normally during electric startup.

When a fire occurs, the thermo bulb can start the extinguisher even if the electric startup mode fails.
This ensures that the fire extinguisher can be started reliably.
Figure 2-20 Front view
Figure 2-21 Rear view
(1) Thermo
bulb
(2) Pressure
gauge
(3) Wiring port
for electric startup
(4) Signal
feedback
(5) Extinguishant release
nozzle assembly
Table 2-16 Technical specifications
Item
Rack-mounted integrated gas fire extinguisher
Storage pressure (at 20°C)
1.6 MPa±0.2 MPa
Startup mode (thermo bulb)
Startup at a constant temperature: 79°C±3°C
Startup mode (electric)
12 V external power supply, started by a solenoid valve
Alarming mode
Dry contact signal feedback
Operating
Safe
–30°C to 55°C