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GB/T 46129-2025General requirements of intelligent operation and maintenance system for nuclear power plants (English PDF)

核电厂智能运维系统通用要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 29, 2025

Implementation date

August 29, 2025

Scope

GB/T 46129-2025 is the English-translated version of 核电厂智能运维系统通用要求.

GB/T 46129-2025 is the Chinese national standard covering the predictive maintenance system in a nuclear station — the condition data collected from safety and non-safety systems and the separation between them, the diagnosis and the remaining life estimate, and the boundary beyond which a recommendation may never become an action. The separation matters: nothing on the safety side may be driven by an algorithm. First edition, already in force. Issued on 29 August 2025, it has been in force since 29 August 2025.

Document preview — GB/T 46129-2025

National Standard of the People's Republic of China

ICS
27.120.20
Classification
F 69

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • PrefaceIII
  • 1 Scope1
  • 2 Normative references1
  • 3 Terms and Definitions1
  • 4 Abbreviations2
  • 5 System Architecture2
  • 6 Functional Requirements3
  • 6.1 State Awareness3
  • 6.2 Health Monitoring3
  • 6.3 Early Warning Diagnosis4
  • 6.4 Health Prediction4
  • 6.5 Maintenance Decision4
  • 7 Technical Requirements4
  • 7.1 Safety Requirements4
  • 7.2 Sensor Technical Requirements5
  • 7.3 Algorithm Technical Requirements5
  • 7.4 Platform Technical Requirements6
  • 7.5 Technical requirements for human-machine interface6
  • 8 Debugging and running7
  • 8.1 System Debugging7
  • 8.2 System Operation and Maintenance7
  • 9 Evaluation and Verification8
  • 9.1 System Evaluation8
  • 9.2 System Verification8
  • References9

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.

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 and coordinated by the National Technical Committee for Nuclear Energy Standardization (SAC/TC58).

This document was drafted by: China Nuclear Power Engineering Co., Ltd., Xi'an Jiaotong University, China Nuclear Power Research and Design Institute, and Nuclear Industry Standardization Research Institute.

Institute, Nuclear and Radiation Safety Center of the Ministry of Ecology and Environment, China General Nuclear Power Engineering Co., Ltd., Shanghai Nuclear Engineering Research and Design Institute Co., Ltd., Suzhou Thermal Engineering Research Institute Co., Ltd.

The main drafters of this document are: Xing Ji, Chen Xuefeng, Du Shuhong, Cui Huaiming, Cheng Wei, Sun Tao, Gao Chao, Li Li, Xiao Zhi, Li Ping, Li Yurong, Deng Ruiyuan, Liu Yilong, Fu Yueming, Hou Junwei, Huang Lijun, Chen Rigang, Xu Zhao, Bai Jiangbin, Zhang Shi, Wang Yan, Wang Shuo, Ma Xintong, Nie Zelin, Ding Baoqing, Gao Shang, Zhang Zhaosheng, Wu Shuming, Zhang Zhifen, Zhang Chao, and Li Yumeng.

General requirements for intelligent operation and maintenance systems in nuclear power plants

1 Scope

This document establishes the architecture of the intelligent operation and maintenance system for nuclear power plants, and stipulates the functional requirements, technical requirements, and Trial and operation requirements, evaluation and verification requirements.

This document applies to the design, development, commissioning and operation of intelligent operation and maintenance systems for nuclear power plants, and shall be used as a reference for the intelligent operation and maintenance systems of other nuclear facilities.

2 Normative references

GB/T 22239

GB/T 22240

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 [Source. GB/T 43208.1-2023, 3.1, with modifications]

Based on the operation and maintenance data of nuclear power plant structures, systems and components (SSCs), through state perception, health monitoring, early warning diagnosis, health Prediction and maintenance decision-making and other activities, develop a technical system with self-learning, diagnosis, decision-making and other operation and maintenance processes.

3.2 condition sensing

The technical process of identifying and processing the operating conditions of nuclear power plant structures, systems and components (SSCs) through data collection and analysis.

3.3 health monitoring

A technical means of detecting the status of equipment by qualitatively or quantitatively analyzing the status of nuclear power plant structures, systems and components (SSCs).

3.4 Warning signals and guide maintenance decisions

When the health indicator reaches the warning health level, the fault type, fault location and fault severity are analyzed to trigger the warning.

3.5 health prediction healthprediction

Based on failure modes, aging mechanisms and health status data, predict the future performance of nuclear power plant structures, systems and components (SSCs) The technical process of monitoring the health status of a segment.

3.6 maintenance decision-making

Based on the effective analysis of operation maintenance, safety, environmental factors, reliability and other information, combined with maintenance cost, failure cost and failure consequences, The technical process of selecting maintenance type, analyzing maintenance effect and determining the best maintenance plan.

......
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

Editions of GB/T 46129

EditionTitleRevisionStatus
GB/T 46129-2025General requirements of intelligent operation and maintenance system for nuclear power plantscurrent editionCurrent

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