1 Scope
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
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Basic Parameters and Model Preparation Method
4.1 Basic Parameters
4.2 Model Preparation Method
5 Requirements
5.1 System
5.2 Fire Extinguishing Agent Cylinder Set
5.3 Expellant Gas Cylinder Set
5.4 Vessel
5.5 Vessel Valve
5.6 Nozzle
5.7 Selector Valve
5.8 Check Valve
5.9 Header Pipe
5.10 Connecting Pipe
5.11 Safety Relief Device
5.12 Drive Device
5.13 Control Panel
5.14 Leakage Detecting Device
5.15 Signal Feedback Device
5.16 Low Venting High Close Valve
5.17 Pipeline and Pipe Fitting
5.18 Hook and Bracket
6 Test Methods
6.1 Test Requirements
6.2 Appearance, Basic Parameters and Material Inspection
6.3 Hydraulic Strength Test
6.4 Airtight Test
6.5 Overpressure Test
6.6 Working Reliability Test
6.7 Action Test under Maximum and Minimum Working Pressure
6.8 Equivalent Length Test
6.9 Salt Spray Corrosion Test
6.10 Sulfur Dioxide Corrosion Test
6.11 Stress Corrosion Test
6.12 Vibration Test
6.13 Temperature Cycling Leakage Test
6.14 Dump Shock Test for Cylinder Set
6.15 Action Test for Safety Relief Device
6.16 Manual Operation Test
6.17 Flow Characteristic Test for Nozzle
6.18 Heat and Pressure Resistance Test for Nozzle
6.19 Heat and Cold Resistance Test for Nozzle
6.20 Discharge Characteristic Test for Total-flooding Type Nozzle
6.21 Discharge Characteristic Test for Overhead Nozzle
6.22 Discharge Characteristic Test for Slot Edge Nozzle (Relationship between Critical Splash Flow and Protection area of Slot Edge Nozzle)
6.23 Impact Resistance Test for Nozzle
6.24 Nozzle Protective Cap Test
6.25 Opening Pressure Test for Check Valve
6.26 Closing Pressure Test for Low Venting High Close Valve
6.27 Hot Air Aging Test
6.28 Withstand Voltage Test
6.29 Insulation Resistance Test
6.30 Power Supply Test
6.31 Low Temperature Test for Connecting Pipe
6.32 Control and Alarm Function Inspection
6.33 High and Low Temperature Tests
6.34 Basic Performance Test for Pressure Indicator
6.35 Alternating Load Test for Pressure Indicator
6.36 Contact Resistance Test for Signal Feedback Device
6.37 Overload Test for Weighing Device
6.38 Working Reliability Test for Signal Feedback Device
6.39 Bearing Capacity Test for Hook and Bracket
6.40 System Tests
7 Inspection Rules
7.1 Inspection Classification, Inspection Items and Test Procedures
7.2 Sampling Method and Quantity
7.3 Judgment of Inspection Result
8 Preparation Requirements for Operating Instructions
Annex A (Normative) Test Procedures and Sample Quantity for the System
Annex B (Normative) Test Procedures and Sample Quantity for the Fire Extinguishing Agent Cylinder Set
Annex C (Normative) Test Procedures and Sample Quantity for the Expellant Gas Cylinder Set
Annex D (Normative) Test Procedures and Sample Quantity for Vessel
Annex E (Normative) Test Procedures and Sample Quantity for Vessel Valve
Annex F (Normative) Test Procedures and Sample Quantity for Nozzle
Annex G (Normative) Test Procedures and Sample Quantity for Selector Valve
Annex H (Normative) Test Procedures and Sample Quantity for Check Valve
Annex I (Normative) Test Procedures and Sample Quantity for Header Pipe
Annex J (Normative) Test Procedures and Sample Quantity for Connecting Pipe
Annex K (Normative) Test Procedures and Sample Quantity for Safety Relief Device
Annex L (Normative) Test Procedures and Sample Quantity for Drive Device
Annex M (Normative) Test Procedures and Sample Quantity for Control Panel
Annex N (Normative) Test Procedures and Sample Quantity for Weighing Device
Annex P (Normative) Test Procedures and Sample Quantity for Pressure Indicator
Annex Q (Normative) Test Procedures and Sample Quantity for Liquid Level Measuring Device
Annex R (Normative) Test Procedures and Sample Quantity for Signal Feedback Device
Annex S (Normative) Test Procedures and Sample Quantity for Pipelines and Pipe Fittings
Annex T (Normative) Test Procedures and Sample Quantity for Hook and Bracket
Annex U (Normative) Test Procedures and Sample Quantity for Low Venting High Close Valve
