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GB/T 33423-2024: Technical specification for corrosion control of coastal and offshore wind turbines
Status: Valid GB/T 33423: Evolution and historical versions
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| GB/T 33423-2024 | English | 919 |
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Technical specification for corrosion control of coastal and offshore wind turbines
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GB/T 33423-2024
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| GB/T 33423-2016 | English | 1039 |
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Technical specification for anticorrosion of wind turbines in the coastal and offshore area
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GB/T 33423-2016
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Basic data | Standard ID | GB/T 33423-2024 (GB/T33423-2024) | | Description (Translated English) | Technical specification for corrosion control of coastal and offshore wind turbines | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A29 | | Classification of International Standard | 25.220.99 | | Word Count Estimation | 46,484 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-11-01 | | Older Standard (superseded by this standard) | GB/T 33423-2016 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 33423-2024: Technical specification for corrosion control of coastal and offshore wind turbines
---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.
ICS 25:220:99
CCSA29
National Standards of People's Republic of China
Replaces GB/T 33423-2016
Technical Specifications for Corrosion Control of Coastal and Offshore Wind Turbines
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and definitions 3
4 General Requirements 4
5 Corrosion Control Measures 4
6 Coating protection 7
6:1 General Provisions 7
6:2 Protective coating 7
6:3 Multi-layer petrolatum coating 14
6:4 Blade coating 16
6:5 Other coatings 20
7 Cathodic protection 20
7:1 General Provisions 20
7:2 Protection potential 21
7:3 Protection current 21
7:4 Design requirements 22
7:5 Sacrificial anode cathodic protection system 23
7:6 Impressed current cathodic protection system 24
7:7 Debugging and Acceptance 26
7:8 In-service inspection and maintenance 27
8 Corrosion Monitoring28
8:1 General Provisions28
8:2 Cathodic protection monitoring system 28
8:3 Atmospheric Corrosion Environment Monitoring System 29
9 Safety, health and environmental protection requirements 30
9:1 General Provisions 30
9:2 Diving safety 30
9:3 Harmful gas release and protection 30
Appendix A (Informative) Corrosion development process of marine steel structures and evaluation of coating protection status 31
Appendix B (Normative) Design Calculation of Sacrificial Anode System 34
Appendix C (Normative) Anode shielding layer design calculation 37
Appendix D (Normative) Impressed Current System Design Calculation 38
References 39
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document replaces GB/T 33423-2016 "Technical Specification for Corrosion Protection of Coastal and Offshore Wind Turbines" and is consistent with GB/T 33423-2016:
In addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) The scope of application has been changed (see Chapter 1, Chapter 1 of the:2016 edition);
b) Added the overall requirements for the entire life cycle of corrosion control projects for coastal and offshore wind turbines (see 4:1, 4:2 and 4:5), and changed the requirements for corrosion control projects for coastal and offshore wind turbines:
Quality assurance level and seismic and typhoon resistance level requirements of the protection system (see 4:2, 4:2 and 4:3 of the:2016 edition);
c) Added general requirements for corrosion control measures (see 4:3) and requirements for the design life of corrosion control (see 4:4);
d) Added the requirements for the qualifications of corrosion control design and construction units, construction equipment, and design, construction, and quality control personnel (see 4:6);
e) Added requirements for new materials, new technologies and new processes for corrosion control (see 4:7);
f) Added environmental zoning and corrosion control measures for coastal and offshore wind turbines (see Chapter 5);
g) Deleted the requirements for coastal hydrogeology and marine biological resources survey when protective coatings and cathodic protection are used (see:2016
4:1 of the year);
h) Added environmental protection requirements for coating materials (see 6:1:2);
i) Deleted the following information: epoxy coating system should be used for coating protection design, thermal spray zinc sealer and coating should be used with thermal spray coating
Compatibility related content [see 5:1b) and c) of the:2016 edition];
j) Changes have been made to the steel structure and equipment protective coating system and performance requirements, epoxy zinc-rich primer performance requirements, and thick-build wear-resistant epoxy coating system:
Performance requirements for epoxy glass flake coatings (see 6:2:1, 5:2 of the:2016 edition), and the low surface treatment epoxy coating has been deleted
Performance requirements (see 5:2 of the:2016 edition);
k) Changed the protective coating application (see 6:2:2, 5:3, 5:4, 5:6 of the:2016 edition), deleted the minimum thickness requirement for thermal spray coating
See 5:3:2:1 of the:2016 edition;
l) Modified the protective coating quality inspection (see 6:2:3, 5:5 of the:2016 edition) and the protective coating in-service inspection and maintenance requirements (see
6:2:4, 5:8 of the:2016 edition);
m) Added the design, construction, quality inspection, in-service testing and maintenance requirements for the multi-layer petrolatum coating (see 6:3);
n) Added requirements for blade coating design, coating construction, construction quality inspection, in-service inspection and maintenance (see 6:4);
o) Added other coating requirements (see 6:5);
p) The general provisions of cathodic protection have been changed (see 7:1, 6:1 of the:2016 edition);
q) The cathodic protection potential of steel structures has been changed (see 7:2:1, 6:2 of the:2016 edition), and the cathodic protection potential of reinforced concrete has been added (see
7:2:2);
r) Changed the steel structure protection current density (see 7:3, 6:3 of the:2016 edition), added the steel structure protection current density with coating,
Cathodic protection current density and cathodic protection current demand of concrete structure reinforcement (see 7:3);
s) Added design requirements for cathodic protection (see 7:4);
t) The sacrificial anode cathodic protection system was changed (see 7:5, 6:6 of the:2016 edition), and the sacrificial anode for concrete structural reinforcement was added:
Cathodic protection system (see 7:5);
u) The impressed current cathodic protection system was changed (see 7:6, 6:7 of the:2016 edition), and the impressed current for concrete reinforcement was added:
Cathodic protection system (see 7:6);
v) Added the commissioning requirements for sacrificial anode cathodic protection systems (see 7:7:1), and changed the commissioning requirements for impressed current cathodic protection systems
(See 7:7:2, 6:7:4 of the:2016 edition);
w) The in-service inspection and maintenance of the cathodic protection system has been modified (see 7:8, 6:9 of the:2016 edition);
x) The corrosion monitoring requirements have been changed (see Chapter 8, Chapter 7 of the:2016 edition);
y) Added safety, health and environmental protection requirements (see Chapter 9);
z) The design calculation of the sacrificial anode system has been changed (see Appendix B, Appendix A of the:2016 edition);
aa) Added the design calculation of anode shielding layer (see Appendix C);
bb) The impressed current system design calculations have been changed (see Appendix D, Appendix C and Appendix D of the:2016 edition):
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the China Petroleum and Chemical Industry Federation:
This document is under the jurisdiction of the National Technical Committee on Corrosion Control (SAC/TC381):
This document was drafted by: Suzhou Thermal Engineering Research Institute Co:, Ltd:, Shenyang Zhongke Environmental Engineering Technology Development Co:, Ltd:, Nanjing Antie Ocean
Engineering Equipment Co:, Ltd:, CGN Wind Power Co:, Ltd:, Guangdong Corrosion Science and Technology Innovation Institute, China Southern Power Grid General Aviation Services Co:, Ltd:
Co:, Ltd:, Qingdao Shuangrui Marine Environmental Engineering Co:, Ltd:, China National Nuclear Power Operation and Management Co:, Ltd:, State Grid Jibei Electric Power Co:, Ltd:
Institute of Mechanical Science, Shanwei Branch of Guangdong Provincial Laboratory of Advanced Energy Science and Technology, Shenzhen CGN Engineering Design Co:, Ltd:, Dalian Science and Technology
Mayer Marine Technology Co:, Ltd:, China Southern Power Grid Industrial Investment Group Co:, Ltd:, Xiamen University, Institute of Oceanology, Chinese Academy of Sciences, Guangdong
Jianke Innovation Technology Research Institute Co:, Ltd:, Fujian Offshore Corrosion Control Research Institute Co:, Ltd:, Qingdao University of Technology, CGN Engineering Co:, Ltd:
Company, Mingyang Smart Energy Group Co:, Ltd:, Shenzhen Guoneng Chentai Technology Co:, Ltd:, Guangdong Yudean Zhanjiang Wind Power Co:, Ltd:, Zhejiang
Yuxi Corrosion Control Co:, Ltd:, Shanghai Yunshen Ship Engineering Co:, Ltd:, Jieyang Qianzhan Wind Power Co:, Ltd:, Qingdao Steel Research Institute Nake Testing
Protection Technology Co:, Ltd:, Shandong Energy Group Electric Power Group Co:, Ltd:, China Power Construction Group Central South Survey and Design Institute Co:, Ltd:, Yantai
Taiguangci Coating Co:, Ltd:, Luoyang LYC Bearing Co:, Ltd:, Jiangsu Jinling Special Coating Co:, Ltd:, Wuhan Cost Instrument Co:, Ltd:
Company, Hebei Guangruide Engineering Co:, Ltd:, Shenzhen Feiyang Junyan New Materials Co:, Ltd:, Zhongke Zhichuang Engineering Technology Co:, Ltd:, China
Classification Society Quality Certification Co:, Ltd:, Jotun Paint (Zhangjiagang) Co:, Ltd:, Zhejiang Digital Intelligence Transportation Institute Technology Co:, Ltd:, Henan Sihai
Anti-corrosion Group Co:, Ltd:, Henan Puxin Anti-corrosion Construction Engineering Co:, Ltd:, Jiangsu Kehui Environmental Technology Co:, Ltd:, Jinyu Micro-View (Cangzhou)
Chemical Co:, Ltd:, China International Corrosion Control Engineering Technology Research Institute (Beijing) Co:, Ltd:, China Corrosion Control Technology Association, Beijing Bihai
YUNZHI NEW MATERIAL TECHNOLOGY CO:, LTD:
The main drafters of this document are: Gao Yuzhu, Zeng Wei, Lin Zequan, Zhao Yongtao, Qiu Xiaoyun, Dong Li, Shang Xianhe, Chen Bo, Wang Zhenyu, Wang Hongxing,
Zhang Wei, Wang Xijun, Feng Ruming, Qin Tienan, Li Guangda, Zhou Jingzhong, Lei Ying, Lin Changjian, Hou Baorong, Zhang Kai, Zhang Zhiyu, Li Weili, Gu Zhijun,
Jin Zuquan, Wu Huacheng, Zhao Yan, Zhong Benwang, Li Yan, Yan Yun, Ou Shuhui, Mo Yeqiang, Xu Lei, Mu Zhaohui, Gao Zhixian, Wu Fangyun, Zang Hanyu,
Ma Chi, Lin Bin, Zhang Xinyu, Gu Tianling, Zhang Yuxia, Zhao Xia, Zhang Xiuli, Chen Jiguo, Zeng Dong, Guo Minlong, Zhang Zhiming, Deng Shulin, Wang Yujie, Zhai Ruicong,
Li Xia, Li Jun, Tan Lei, Leng Ping, Zhang Hongtu, Bi Wuyang, Zhang Caisong, Chen Yao, Lu Yun, Li Wei, Zhang Minghua, Zhong Yao, He Qi, Liu Yanqiang, Bian Zhibing,
Shi Zhenhao, Chen Weiwang, Qiu Xiaoyong, Ma Qinglei, Dong Zehua, He Xutao, Shen Jian, Li Huagang, Li Xianxiu, Zhao Xiangyue, Huang Yadong, Bi Yanfeng, Wang Guiming,
Jin Shaobo, He Xiaoyu, Di Taishen, Ma Zheng:
This document was first published in:2016 and this is the first revision:
Technical Specifications for Corrosion Control of Coastal and Offshore Wind Turbines
1 Scope
This document specifies the overall requirements for corrosion control of offshore wind turbines and onshore coastal wind turbines within 10 km of the coastline, corrosion control requirements, and
Technical requirements for control measures, coating protection, cathodic protection, corrosion monitoring, as well as safety, health and environmental protection requirements:
This document applies to the foundation, tower, wind rotor-nacelle assembly of offshore wind turbines and onshore coastal wind turbines within 10km of the coastline:
Corrosion control of parts and equipment:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 1724 Determination of fineness of grinding of paints, varnishes and printing inks
GB/T 1725 Determination of non-volatile matter content of paints, varnishes and plastics
GB/T 1728 Determination of drying time of paint and putty films
GB/T 1731 Determination of flexibility of paint and putty films
GB/T 1732 Determination of impact resistance of paint films
GB/T 1733-1993 Determination of water resistance of paint films
GB/T 1740 Determination of moisture and heat resistance of paint films
GB/T 1768 Determination of abrasion resistance of paints and varnishes - Rotating rubber wheel method
GB/T 1770 Determination of polishability of coatings and putty films
GB/T 1865 Paints and varnishes - Artificial weathering and exposure to artificial radiation - Filtered xenon arc radiation
GB/T 4948 Aluminum-zinc-indium alloy sacrificial anode
GB/T 4950 Zinc alloy sacrificial anode
GB/T 5210 Paint and varnish adhesion test by pull-off method
GB/T 5267:1 Fastener electroplating
GB/T 5267:2 Non-electrolytic zinc flake coating for fasteners
GB/T 5267:3 Hot-dip galvanized coating on fasteners
GB/T 5267:4 Fastener surface treatment - Passivation treatment of corrosion-resistant stainless steel
GB 6514 Safety regulations for painting operations - Safety of painting process and its ventilation and purification
GB/T 6739 Paints and varnishes - Determination of film hardness by pencil method
GB/T 6742 Paints and varnishes bending test (cylindrical mandrel)
GB/T 7387 Specifications for marine reference electrodes
GB/T 7388 Technical requirements for marine auxiliary anodes
GB 7691 Safety regulations for painting operations - General rules for safety management
GB 7692 Safety regulations for painting operations Safety of pre-painting treatment process and its ventilation and purification
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