Preliminary Exploration of Exemption Methods for Single-Fault Criteria in Nuclear Power Plants

Jin An (), Lin Yan and Jian Yang
Additional contact information
Jin An: China Nuclear Power Engineering CO., Ltd.
Lin Yan: China Nuclear Power Engineering CO., Ltd.
Jian Yang: China Nuclear Power Engineering CO., Ltd.

A chapter in Data-Driven Methods for Reliability and Safety Engineering: Applications in Industrial Systems, 2026, pp 37-45 from Springer

Abstract: Abstract The Chinese regulation titled “Design Safety Regulations for Nuclear Power Plants” (HAF102) mandates the application of the single fault criterion to all safety system combinations within nuclear power plant designs. This requirement aims to ensure that the designed systems maintain high reliability when subjected to design basis accidents. However, the universal implementation of the single fault criterion in design basis accident analyses may introduce overly restrictive design limitations. To address this issue, the present study examines the design of a passive residual heat removal system on the secondary side of a specific reactor type and proposes a methodology for exemption from the single-fault criterion. This approach is founded on a comprehensive assessment incorporating reliability analysis, risk evaluation, operating experience, and the interaction of safety systems. The proposed method guarantees that the safety system’s reliability is commensurate with the overall plant risk, thereby allowing simplification of the plant design in certain cases without compromising safety.

Keywords: Single fault criterion; Exemption; Risk assessment (search for similar items in EconPapers)
Date: 2026
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:ssrchp:978-3-032-22873-4_4

Ordering information: This item can be ordered from
http://www.springer.com/9783032228734

DOI: 10.1007/978-3-032-22873-4_4

Access Statistics for this chapter

More chapters in Springer Series in Reliability Engineering from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().