Path: Home > GB/T > Page674 > GB/T 28725-2012

Price & Delivery

US$509.00 · In stock · Download in 9 seconds
GB/T 28725-2012: Cathodic protection for buried prestressed concrete cylinder pipelines
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid

Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 28725-2012	English	509	Add to Cart	4 days [Need to translate]	Cathodic protection for buried prestressed concrete cylinder pipelines

GB/T 28725-2012: Cathodic protection for buried prestressed concrete cylinder pipelines

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS25.220.99 A29 National Standards of People's Republic of China Cathodic protection of buried prestressed concrete cylinder pipe Issued on. 2013-02-01 2012-09-03 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms, Definitions and Abbreviations 1 Requirement 3 4 5 Guideline 4 6 Design 4 7 7 construction and acceptance 8 8 Operation Management 9 documentation and management 8 Recognizing the need to Appendix A (normative appendix) PCCP pipeline cathodic protection 10 Annex B (informative) Guidelines provision in 11 Annex C (normative) prestressed concrete cylinder pipe typical Header 12 Annex D (informative) design provision in 15 References 18

Foreword

This standard rule according to GB/T 1.1-2009 given draft. Please note that some of the content of this document may involve patent issuing authority of this document does not assume responsibility for the identification of these patents. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee anti-corrosion (SAC/TC381) centralized. This standard by the Shenyang Branch Surface Engineering Technology Development Co., Ltd. Dalian City water supply, Xinjiang Province Hydro and Power Design Hospital, China's industrial anti-corrosion Technology Association, Liaoning Province Hydro and Power Design Institute is responsible for drafting, State Key Laboratory for Corrosion and Protection, State of metal corrosion control engineering technology research center, water conservancy construction in Dalian Institute, Dandong City Bay Water Control and Water pipe construction Authority, Water Resources Planning and Design Institute, Beijing, Shenyang Branch of corrosion control engineering Hongda Technology Development Co., Ltd. participated in the drafting. The main drafters of this standard. Zang Han Yu, Hu Shixin, Liu Yongliang, NOVEL, Zou Guangqi, Liu Yonglin, Zhao Jian, ultra-high-jen, Li Ji grams valley leaves, Zhang Jiajun, Zhao, Xu Feng, Wang Dongli, single-letter, Cui Yongli, Li Jiang, Ye Qing, Sun Xiaoping, who abides in the text. Cathodic protection of buried prestressed concrete cylinder pipe

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] ...