This standard specifies the terms and definitions, classification and model, technical requirements, test methods, inspection rules as well as marking, packaging, transport and storage of heptafluoropropane foam fire extinguishing system and components.
This standard is applicable to the heptafluoropropane foam fire extinguishing system and components.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3222.2 Acoustics - Description, measurement and assessment of environmental noise - Part 2: Determination of environmental noise levels
GB/T 3797 Electrical control assemblies
GB 4208 Degrees of protection provided by enclosure (IP Code)
GB/T 9969 General principles for preparation of instructions for use of industrial products
GB 15308 Foam extinguishing agent
GB 18614 Fire extinguishing agent heptafluoropropane (HFC227ea)
GB 20031-2005 General technical specifications for foam fire extinguishing systems and components
GB 25972-2010 Gas fire extinguishing systems and components
GA 61-2010 General technical specifications of actuating and control devices of fixed extinguishing systems
GA 834-2009 Foam-spray extinguishing equipments
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
heptafluoropropane foam fire extinguishing system
fire extinguishing system which is composed of water supply system, foam concentrate storage tank, foam proportioning device, heptafluoropropane feeding device, heptafluoropropane proportioning device, heptafluoropropane foam maker, control cabinet, valve, pipeline, etc. and is able to generate heptafluoropropane foam
3.2
heptafluoropropane concentration
volume percentage of liquid heptafluoropropane in heptafluoropropane foam mixture
3.3
heptafluoropropane proportioning device
device for mixing liquid heptafluoropropane and foam mixture at a specified concentration
3.4
storage pressure
equilibrium pressure in the heptafluoropropane storage container at 20℃ after it is filled with heptafluoropropane at the maximum filling density and pressurized
