NB/T 20261-2014Design criteria for emergency core cooling system of pressurized water reactor nuclear power plants (English PDF)
压水堆核电厂应急堆芯冷却系统设计准则
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
June 29, 2014
Implementation date
November 1, 2014
Scope
NB/T 20261-2014 is the English-translated version of 压水堆核电厂应急堆芯冷却系统设计准则.
NB/T 20261-2014 is the Chinese energy industry standard holding the design criteria for the emergency core cooling system of a pressurized water reactor nuclear power plant.
It states the basic design requirements for that system in improved second-generation units, and the requirements reach the parts of the design that bear on operation, maintenance and testing.
Documents cited alongside it include GB 6249, GB/T 13285, GB/T 13286, GB/T 17569, GB 18871, NB/T 20026, NB/T 20051, NB/T 20053, NB/T 20131, NB/T 20268, EJ/T 331, EJ/T 335 and EJ/T 336.
It supersedes the earlier nuclear industry standard EJ/T 332-1988. Issued on 29 June 2014, it has applied since 1 November 2014.
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Document preview — NB/T 20261-2014
National Standard of the People's Republic of China
- ICS
- 27.120.10
- Replacing
- EJ/T 332-1988
Issued by: National Energy Administration of the People's Republic of China
Contents
- 2 Normative references
2 Normative references
NB/T 20261-2014 cites the following standards, which apply in full or in part through the references made to them in its clauses.
GB 6249
GB/T 13285
GB/T 13286
GB/T 17569
GB 18871
NB/T 20026
NB/T 20051
NB/T 20053
NB/T 20131
NB/T 20268
EJ/T 331
EJ/T 335
EJ/T 336
......
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
- GB 6249Regulations for environmental radiation protection of nuclear power plants
- GB/T 13285Physical protection for safety-related systems and components in nuclear power plants
- GB/T 13286Criteria for independence of class 1E equipment and circuits in nuclear power plants
- GB/T 17569Classification for the items of pressurized water reactor nuclear power plants
- GB 18871Basic Standards for Protection Against Ionizing Radiation and for the Safety of Radiation Sources
- NB/T 20026General requirements for instrumentation and control systems important to safety in nuclear power plants
EJ/T 331 · EJ/T 335 · EJ/T 336
Similar standards
Editions of NB/T 20261
| Edition | Title | Revision | Status |
|---|---|---|---|
| NB/T 20261-2014 | Design criteria for emergency core cooling system of pressurized water reactor nuclear power plants | current edition | Current |
| EJ/T 332-1988 | Design criteria for emergency core cooling system of pressurized water reactor nuclear power plants | previous edition | Superseded |
This page sells the current edition, NB/T 20261-2014. Earlier editions are listed for reference only.
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Related Standards
GB 18871-2002 — Basic Standards for Protection Against Ionizing Radiation and for the Safety of Radiation Sources
GB 6249-2025 — Regulations for environmental radiation protection of nuclear power plants
GB/T 13285-1999 — Physical protection for safety-related systems and components in nuclear power plants
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NB/T 20261-2014
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