Fire suppression systems focus on detection, extinguishing agents, and standards (Source: Douyin): Golden Rule: Perfluorohexanone is the top choice (Source: Lao Chen); Core: Composite detection of three gases (Source: Draft for Approval); Note: Close air valves before discharge (Source: Lao Chen).
I. Fire Extinguishing Agents
Perfluorohexanone: Preferred choice;
offers chemical flame inhibition and heat absorption (Source: Lao Chen); HFC-227ea (Heptafluoropropane): Mainstream, mature agent (Source: Lao Chen); Aerosol: Interrupts chain reactions (Source: EPCLAND); Water Mist: Heat absorption and displacement (Source: EPCLAND); Re-ignition: Perfluorohexanone has a low re-ignition rate (Source: Lao Chen)—Agents: Perfluorohexanone, HFC-227ea, and Aerosol (three options).
II.
Detection Systems
Composite: Combination of smoke, temperature, and gas detection (Source: Draft for Approval); Three Gases: Hydrogen, carbon monoxide, and carbon dioxide (Source: Draft for Approval); Temperature Sensing: Activation temperature and response time (Source: Draft for Approval); Thermal Imaging: Full coverage via thermal imaging CCTV (Source: SCDF); Early Warning: Early detection of gas emissions (Source: EnergyBlog)—Detection: Composite, three-gas, and thermal imaging (three layers).
III. Discharge Control
Valve Closure: Forced closure of air valves prior to discharge (Source: Lao Chen); Soaking: Ensuring the required extinguishing soaking concentration (Source: Lao Chen); Leak Prevention: Preventing dilution by fresh air that could lead to explosion (Source: Lao Chen); High Temperature: High-temperature airtight coupling design (Source: Lao Chen);
Concentration: Perfluorohexanone at 4.5% ± 0.2% (Source: Jilin Standard)—Discharge: Valve closure + Soaking + Concentration (Three controls).
IV. Standards System
GB: GB 45944-2025 Perfluorohexanone (Source: Tianjin Fire Research Institute); NFPA 855: Fire safety installation spacing (Source: DMTech); UL: UL 9540/9540A Thermal runaway (Source: DMTech); NFPA 2001: Clean agent fire extinguishing systems (Source: lorax);
ISO: ISO 14520 Gaseous fire-extinguishing systems (Source: lorax)—Standards: GB + NFPA + UL (Three systems).
V. Power Supply Requirements
24h: 24-hour standby power (Source: NFPA 855); 2h: 2-hour operation in alarm state (Source: NFPA 855); Remote: Remote monitoring with 60s alarm (Source: T/CECS); Leakage: Signal for extinguishing agent leakage/discharge (Source: T/CECS); Reset: Maintained until manual reset (Source: T/CECS)—Power: 24h + 2h + Remote (Three requirements).
VI. Agent Comparison
FK-5-1-12: Novec 1230, leaves no residue (Source: DataCentersX); FM-200: HFC-227ea, a mature technology (Source: DataCentersX); GWP: GWP of approximately 3200 (Source: DataCentersX); Concentration: FK-5-1-12 design concentration of 4–6% (Source: IEEE); Environmental Impact: Zero ozone depletion potential and low GWP (Source: DataCentersX)—Comparison: FK vs. FM-200 vs. Environmental Impact (three dimensions).
VII.
Procurement Recommendations
First, select the agent (perfluorohexanone); second, configure detection (triple-gas composite sensing); third, verify standards (GB/NFPA/UL); fourth, check power supply (24-hour backup);
fifth, test for re-ignition (UL 9540A)—Fire Protection: Agent + Detection + Standards (three core elements).
