NB/T 20221-2013Corrosion Examination for Secondary Circuit Thermal Power Equipment of PWR Nuclear Power Plants (English PDF)
压水堆核电厂二回路热力设备腐蚀检查
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
June 8, 2013
Implementation date
October 1, 2013
Scope
NB/T 20221-2013 is the English-translated version of 压水堆核电厂二回路热力设备腐蚀检查.
NB/T 20221-2013 is a recommended Chinese energy industry standard on the corrosion examination of secondary circuit thermal equipment in pressurized water reactor nuclear power plants.
It sets out the inspection and assessment methods for corrosion on the surfaces of the main secondary-side heating equipment that are in contact with the working medium, with the examination carried out while the unit is shut down.
Pressurized water reactor plants are its field of application. It quotes DL/T 1025, DL/T 1115, JB/T 4730 and SD 202. It carries the Chinese classification K54 and the international class 27.100. Issued on 8 June 2013, it has applied since 1 October 2013.
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Document preview — NB/T 20221-2013
National Standard of the People's Republic of China
- ICS
- 27.100
Issued by: National Energy Administration of the People's Republic of China
1 Foreword
NB/T 20221-2013 was issued by National Energy Administration of the People's Republic of China on 8 June 2013 and has been in force since 1 October 2013.
2 Scope
This standard is a recommended Chinese energy industry standard on the corrosion examination of secondary circuit thermal equipment in pressurized water reactor nuclear power plants. It sets out the inspection and assessment methods for corrosion on the surfaces of the main secondary-side heating equipment that are in contact with the working medium, with the examination carried out while the unit is shut down. Pressurized water reactor plants are its field of application. It quotes DL/T 1025, DL/T 1115, JB/T 4730 and SD 202. It carries the Chinese classification K54 and the international class 27.100.
3 Normative references
NB/T 20221-2013 cites the following standards, which apply in full or in part through the references made to them in its clauses.
DL/T 1025
JB/T 4730
SD 202
DL/T 1115
4 About this standard
Issued by: National Energy Administration of the People's Republic of China
English translation: about 15 pages
5 Classification and status
International classification (ICS): 27.100
Chinese Standard Classification (CCS): K 54
Prefix NB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- DL/T 1025Technical supervision code for metal in nuclear power plant
- DL/T 1115Directive of chemistry check-up for unit maintenance in fossil plant
JB/T 4730 · SD 202
Similar standards
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Related Standards
DL/T 1025-2006 — Technical supervision code for metal in nuclear power plant
DL/T 1115-2009 — Guide for chemistry check-up of unit maintenance in fossil fuel power plant
DL/T 1115-2019 — Directive of chemistry check-up for unit maintenance in fossil plant
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