Fixed water supply equipment used for fire-protection - Part 2: Constant pressure automatic water supply equipment used for fire-protection
1 Scope
This part of GB 27898 specifies the terms and definitions, classification, requirements, test methods, inspection rules, signboards and operation instructions, packaging, transportation and storage of constant pressure automatic water supply equipment used for fire-protection.
This part is applicable to constant pressure automatic water supply equipment used for fire-protection. As for constant pressure water supply equipment with similar working principle, this part may be adopted by reference.
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 150 Steel pressure vessels
GB/T 3222.2 Acoustics - Description measurement and assessment of environmental noise - Part 2: Determination of environmental noise levels
GB 6245 Fire pump
GB 27898.1-2011 Fixed water supply equipment used for fire-protection - Part 1: Gas pressure fixed water supply equipment used for fire-protection
GA 61 General technical specifications of actuating and control devices of fixed extinguishing systems
TSG R0004 Supervision regulation on safety technology for stationary pressure vessel
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB 27898.1-2011, as well as the following, apply.
3.1
constant pressure automatic water supply equipment used for fire-protection
equipment that supplies constant pressure water for fire protection by using a specific control mode or the inherent flow and pressure characteristics of the pump sets
3.2
constant pressure water supply used for fire-protection
water supply mode in which the water flow of the equipment changes with the rated fire-protection working flow range and the water pressure always maintains the set value
4 Classification
4.1 Product classification
4.1.1 By the Applications range, constant pressure automatic water supply equipment is classified into:
a) Constant pressure automatic water supply equipment special for fire-protection, the characteristic code of which is omitted;
b) Constant pressure automatic water supply equipment for both fire-protection and living (production), the characteristic code of which is G.
4.1.2 By the control mode of fire pump, constant pressure automatic water supply equipment is classified into:
a) Constant pressure automatic water supply equipment with power frequency for fire-protection:
—— Constant pressure automatic water supply equipment with constant pressure pump set, the characteristic code of which is BZ;
—— Constant pressure automatic water supply equipment with reflux pressure control, the characteristic code of which is HL;
b) Constant pressure automatic water supply equipment with frequency conversion for fire-protection, the characteristic code of which is BP.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
4.1 Product classification
4.2 Model designation
5 Requirements
5.1 Basic parameters
5.2 Composition and components of equipment
5.3 Appearance and identification
5.4 Control function
5.5 Water supply capacity
5.6 Continuous operation
5.7 Sealing performance
5.8 Water pressure strength
5.9 Operating noise
5.10 water tank with pressurized gas
5.11 Water pump set
5.12 Pipeline valve and accessories
5.13 Control instruments
5.14 Control cabinet
6 Testing methods
6.1 General requirements for testing
6.2 Checking of basic parameters
6.3 Checking of structure and components
6.4 Checking of appearance and identification
6.5 Control function test
6.6 Water supply capacity test
6.7 Continuous running test
6.8 Sealing performance test
6.9 Water pressure strength test
6.10 Operating noise measurement
6.11 Test for water tank with pressurized gas
6.12 Test for water pump set
6.13 Test for pipeline valves and accessories
6.14 Test for control instruments
6.15 Test for control cabinet
7 Inspection rules
7.1 Inspection classification and items
7.2 Sampling method
7.3 Judgement of inspection results
7.4 Sampling and judgment of fixed water supply equipment series used for fire-protection
8 Signboard and operation instructions
8.1 Signboard
8.2 Operation instructions
9 Packaging, transportation and storage
9.1 Packaging
9.2 Transportation
9.3 Storage
