HALOCARBON - Model HFC 227ea - Gas Extinguishing System
The extinguishing agent HFC 227ea is a hydrofluorocarbon (or heptafluorpropane). From an environmental point of view, the extinguishing agent HFC 227ea is approved by EPA (U.S. Environmental Protection Agency) within the Significant New Alternative Program or SNAP. Despite its extremely low environmental impact values, unnecessary discharges or accidental leakages should be avoided by having the system operated exclusively by specialised personnel.
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The main reference standards for the design of HFC...
The main reference standards for the design of HFC 227ea gas extinguishing systems are:
UNI 15004 'Gas fire extinguishing systems – Physical properties and design of systems, part no. 9
NFPA 2001 (Clean Agent Fire Extinguishing System, 2000 Edition)
From a toxicological point of view, the HFC 227ea gas is acknowledged in NFPA 2001 as an extinguishing agent that can be used for areas normally occupied by personnel.
The extinguishing concentration of HFC 227ea for class A fires (wood etc.) according to standard UL 1058 is 7% in volume, corresponding to 0.635 Kg/mc.
The extinguishing concentration related to class 'B' and 'C' (flammable liquids and gas) according to the Cup Burner test is 8%, equal to 0.721 Kg/mc;
The maximum concentration admitted in rooms normally occupied without any restriction is equal to 9%;
The HFC 227ea gas is able to extinguish most classes of fires and is safe, clean and electrically non-conductive. Its use is recommended for the protection of: Telecommunication equipment, computer and control rooms. Thanks to its low level of toxicity, the HFC 227ea gas is recommended for the protection of areas normally occupied by personnel and has a low level of environmental impact thanks to its value of ODP=0. Eusebi Impianti srl can also supply FM200 systems.
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