This standard specifies the terms and definitions, basic parameters and model preparation method, requirements, test methods, inspection rules, and preparation requirements for operating instructions for the components of high-pressure carbon dioxide fire extinguishing systems.
This standard is applicable to the components of high-pressure carbon dioxide fire extinguishing systems.
2 Normative References
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document applies.
GB 4396 Fire Extinguishing Agent - Carbon Dioxide (GB 4396-2005, ISO 5923:1989, NEQ)
GB 5099 Seamless Steel Gas Cylinders (GB 5099-1994, neq ISO 4705:1983)
GB/T 9969 General Principles for Preparation of Instructions for Use of Industrial Products
GA 61 General Technical Specifications of Actuating and Control Devices of Fixed Extinguishing Systems
3 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
3.1
system working pressure
pressure at the outlet of vessel valve on fire extinguishing agent cylinder set
3.2
filling density
ratio of the mass of the fire extinguishing agent in storage vessel to the volume of the vessel, in kg/m3
3.3
storage pressure
equilibrium pressure in the storage vessel which is filled with fire extinguishing agent per the maximum filling density and is placed at +20℃, with respect to carbon dioxide fire extinguishing agent cylinder set
equilibrium pressure in the storage vessel which is filled with fire extinguishing agent per the maximum filling pressure or filling density and is placed at +20℃, with respect to expellant gas cylinder set
3.4
maximum working pressure
equilibrium pressure in the storage vessel which is filled with fire extinguishing agent per the maximum filling density and is placed at upper limit of the working temperature range, with respect to carbon dioxide fire extinguishing agent cylinder set
equilibrium pressure in the storage vessel which is filled with fire extinguishing agent per the maximum filling pressure or filling density and is placed at upper limit of the working temperature range, with respect to expellant gas cylinder set
