1 Scope
This standard specifies the terms and definitions, classification, model designation, requirements, test methods, inspection rules, instructions, marking, storage and transportation of nitrogen injection and oxygen reduction fire prevention device.
This standard is applicable to nitrogen injection and oxygen reduction fire prevention device.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
GB 150 (All the parts) Pressure Vessels
GB/T 191 Packaging - Pictorial Marking for Handling of Goods
GB/T 3222.2 Acoustics - Description, Measurement and Assessment of Environmental Noise - Part 2: Determination of Environmental Noise Levels
GB 5099 Steel Seamless Gas Cylinder
GB 5100 Welded Steel Gas Cylinders
GB/T 9969 General Principles for Preparation of Instructions for Use of Industrial Products
GB/T 25208 Environmental Test Methods for Fixed Extinguishing Systems
GA 61-2010 General Technical Specifications of Actuating and Control Devices of Fixed Extinguishing Systems
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
Nitrogen injection and oxygen reduction fire prevention device
A fire prevention device that separates the nitrogen and oxygen in the air, injects nitrogen to the protection area and controls the oxygen concentration in the protection area to prevent the combustibles therein from burning.
3.2
Nitrogen generation assembly
An assembly that is able to separate the nitrogen from the air.
Foreword i
1 Scope 1
2 Normative References 1
3 Terms and Definitions 1
4 Classification and Model Designation 2
4.1 Classification 2
4.2 Model Designation 3
5 Requirements 3
5.1 Device Assembly 3
5.2 Nitrogen Generation Assembly 4
5.3 Zone Control Valve 4
5.4 Pressure-boosted Nitrogen Storing Assembly 5
5.5 Controller 7
5.6 Oxygen Concentration Sensor 7
5.7 Conveying Piping 7
5.8 Nozzle 8
6 Test Methods 8
6.1 Test Requirements 8
6.2 Nameplate and Identification Inspection 8
6.3 Nitrogen Supplying Test 8
6.4 Voltage Fluctuation Resistance Test 8
6.5 Insulation Resistance Test 9
6.6 Voltage Resistance Test 9
6.7 Damp Heat Test 9
6.8 High/Low-temperature Resistance Test 9
6.9 Continuous Operation Test 9
6.10 Noise Measurement 9
6.11 Strength Test 9
6.12 Sealing Test 9
6.13 Operational Reliability Test of Zone Control Valve 10
6.14 Salt Mist Corrosion Test 10
6.15 Manual Opening & Closing Performance Test 11
6.16 Deflecting Stability Test of Gauge Hand 11
6.17 Controller Test 11
7 Inspection Rules 11
7.1 Inspection Classification and Items 11
7.2 Sampling Method and Quantity 15
7.3 Judgment of Inspection Results 15
8 Operation Instructions 16
9 Marking, Storage and Transportation 16
9.1 Marking 16
9.2 Storage 16
9.3 Transportation 16
