GB/T 28725-2012Cathodic protection for buried prestressed concrete cylinder pipelines (English PDF)
埋地预应力钢筒混凝土管道的阴极保护
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 3, 2012
Implementation date
February 1, 2013
Scope
GB/T 28725-2012 is the English-translated version of 埋地预应力钢筒混凝土管道的阴极保护.
GB/T 28725-2012 is the Chinese standard "Cathodic protection for buried prestressed concrete cylinder pipelines".
Its scope clause reads: This standard specifies the buried prestressed concrete cylinder pipe (PCCP hereinafter referred to as the Pipeline) cathodic protection system of terms, definitions and shrink Abbreviation, requirements, guidelines, design, construction and acceptance, operation management, documentation and management.
This standard applies to new or cathodic protection has been built underground PCCP pipelines, other prestressed concrete pipes can also refer use. Its clauses include terms, definitions and abbreviations.
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Document preview — GB/T 28725-2012
National Standard of the People's Republic of China
- ICS
- 25.220.99
- Classification
- A 29
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms, Definitions and Abbreviations
- 5 Guideline
- 6 Design
- 7 construction and acceptance
- 8 Operation Management
- 9 documentation and management
- Annex B (informative) Guidelines provision in
- Annex C (normative) prestressed concrete cylinder pipe typical Header
- Annex D (informative) design provision in
- References
1 Scope
This standard specifies the buried prestressed concrete cylinder pipe (PCCP hereinafter referred to as the Pipeline) cathodic protection system of terms, definitions and shrink
Abbreviation, requirements, guidelines, design, construction and acceptance, operation management, documentation and management.
This standard applies to new or cathodic protection has been built underground PCCP pipelines, other prestressed concrete pipes can also refer use.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 10123-2001 corrosion of metals and alloys - Basic terms and definitions
GB/T 19685-2005 prestressed concrete cylinder pipe
GB/T 21246 buried steel pipeline cathodic protection measurement methods
Outside the GB/T 21447-2008 steel pipeline corrosion control norms
GB/T 21448-2008 buried steel pipeline cathodic protection Technical Specifications
GB 50021 investigation of geotechnical engineering
GB 50217 power engineering design of cables
3 Terms, definitions and abbreviations
3.1 Terms and Definitions
GB/T 10123-2001 defined and the following terms and definitions apply to this document. For ease of use, repeat the following list
The GB/T 10123 certain terms and definitions.
3.1.1 Anode filler anodebackfil
Packed around the anode in a low resistivity material, for maintaining the humidity, reducing the resistance between the anode and the electrolyte, in order to prevent anodic polarization.
[GB/T 21448-2008, the definition 3.1.1]
3.1.2 Jumper bond
Metal conductor (mostly copper conductor) connecting two points on the same structure or different structures, and for ensuring the electrical connection between two points in a row
Of a practice.
[GB/T 21448-2008, the definition 3.1.2]
3.1.3 Confluence drainpoint
Cathodic protection cable connection point with the structures, protection current through this point back to the source.
[GB/T 21448-2008, the definition 3.1.4] […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.
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