1 Scope
This Part of GB 5135 specifies the model compilation, classification, requirements, test methods and inspection rules as well as mark, pack, transport and storage for the pressure switch of the automatic sprinkler system.
This Part is applicable to the pressure switch in the automatic sprinkler system.
This Part is not applicable to the pressure switch of gas fire extinguishing system and explosion-proof pressure switch used under the combustible and explosive locations.
2 Normative References
The following documents contain provisions which, through reference of this Part of GB 5135, constitute provisions of this Part. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply; however, the parties who enter into agreement according to this Part are encouraged to research whether the latest editions of these documents are applied or not. For undated references, the latest edition is applicable to this Part.
Contents
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
3.1 Pressure Switch
3.2 Pressure Switch of Remember
3.3 Action Pressure
3.4 Rated Working Pressure
4 Classification
5 Model Compilation
5.1 Compilation Method
5.2 Marking Illustration
6 Requirements
6.1 Appearance
6.2 Rated Working Pressure
6.3 Action Pressure
6.4 Strength Requirements
6.5 Operational Reliability Requirements
6.6 Wet Heat Resistance Requirements
6.7 Corrosion Resistance Requirements
6.8 Vibration Resistance Requirements
6.9 Impact Requirements
6.10 Insulation Requirements
6.11 Voltage Withstand Requirements
6.12 Contact Resistance
6.13 Contact Quantity
6.14 Connection Mode
7 Test Methods
7.1 Test Conditions
7.2 Appearance Inspection
7.3 Action Test
7.4 Strength Test
7.5 Operational Reliability Test
7.6 Wet Heat Test
7.7 Corrosion Test
7.8 Vibration Test
7.9 Impact Test
7.10 Insulation Resistance Test
7.11 Voltage Withstand Test
7.12 Contact Resistance Test of Contact Point
8 Inspection Rules
8.1 Inspection Classification and Item
8.2 Sampling Method
8.3 Judgment of Test Result
9 Compilation Requirements for Operation Instruction
10 Mark, Package, Transport and Storage
10.1 Mark
10.2 Package
10.3 Transport
10.4 Storage
