GB 17051-2025 Hygienic specification for facilities of secondary water supply English Translation
Hygienic specification for facilities of secondary water supply
1 Scope
This document specifies the basic hygienic requirements for secondary water supply facilities, machine room, water tank (pool), and the hygienic requirements and operation requirements of disinfection equipment.
This document is applicable to facilities of secondary water supply for drinking.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions 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 5749-2022 Standards for drinking water quality
GB/T 5750 (all parts) Standard examination method for drinking water
GB/T 17219 Standard for safety evaluation of equipment and protective materials in drinking water system
GB 28232 Hygienic requirements for ozone disinfector
GB 28233 Hygienic requirements for sodium hypochlorite generator
GB 28235-2020 Hygienic requirements for ultraviolet appliance of disinfection
GB 28931 Hygienic requirements for chlorine dioxide disinfectant generator
GB/T 32091-2015 Ultraviolet equipment for water disinfection - Ultraviolet dose testing method
GB 50015 Standard for design of building water supply and drainage
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
secondary water supply
way of supplying water to households and users after re-storage, pressurization, sterilization or advanced treatment of centralized water supply
3.2
secondary water supply facilities
equipment and pipelines for storage, pressurization, disinfection and transportation of centralized water supply before accessing households
3.3
water tank (pool)
tank or pool for storing drinking water
Note: According to different positions, it can be classified into low water tank (pool), middle water tank and high water tank.
3.4
non-negative pressure water supply equipment
water supply equipment directly connected in series to the municipal water supply pipe network or other pressure pipe network, in this way, the existing pipe network pressure is effectively utilized, without generating any negative pressure to the municipal water supply pipe network or other pressure pipe network, thus stabilizing and regulating the flow
Note: It consists of water pump, steady flow compensator, vacuum suppressor, control cabinet, control instrument, pipeline, valve, etc.
[Source: CJ/T265-2016, 3.1, modified]
3.5
operating unit
unit responsible for the operation, running, maintenance and management of secondary water supply facilities
4 Basic sanitary requirements
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Basic sanitary requirements
5 Hygienic requirements for machine room
6 Hygienic requirements for water tank (pool)
7 Hygienic requirements for disinfection equipment
8 Requirements for operation
Bibliography
