Huawei FusionModule2000 Maintenance Manual page 25

FusionModule2000 Smart Modular Data Center
Maintenance Guide
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Issue 02 (2022-07-30)
sensors and open flame sensors be deployed. At least two sensors of each
type should be deployed, and the automatic fire alarm system should be
enabled.
The battery room should be equipped with independent air conditioners and
ventilation ducts, which must not be shared with other equipment areas or
office areas. If they are shared, fire dampers must be installed for the battery
room. The ventilation and exhaust system must interact with the fire alarm
system and be able to handle flammable gases with a concentration lower
than 25% lower flammability limit (LFL).
The battery room should be equipped with a halogenatedane or
perfluorohexanone gas fire extinguishing system, which should interwork with
the fire alarm system. After the extinguishing agent is released, the battery
room should meet the requirement on flame extinguishing concentration
within 10 min.
The battery room should be equipped with fire extinguishing facilities such as
a dry-type water spray or water mist pipe network to cope with the risk of
reignition or fire spreading after the battery fire is extinguished.
The battery room should be equipped with pressure relief explosion-proof
devices or pressure relief channels (such as glass windows and magnetic lock
doors) with equivalent areas. According to the NFPA 68 or GB 50016
standard, if side pressure relief is adopted, a protective fence or wall should
be installed outside the pressure relief channels, and the fence or wall should
be at least 12 m away from the pressure relief wall.
The fire alarm system should interact with the ventilation and exhaust system
and automatic fire extinguishing system, able to trigger the energy storage
system to disconnect the charging and discharging circuits.
Fire alarms in the battery room should be automatically reported to the fire
supervision center. If the battery room is unattended, an automatic fire alarm
system must be deployed to report fire alarm signals to the remote
supervision center.
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