GB/T 9225-2022 English PDFGB/T 9225: Historical versions
Basic dataStandard ID: GB/T 9225-2022 (GB/T9225-2022)Description (Translated English): Application guidelines of reliability analysis in nuclear power generating station systems and other nuclear facilities Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: F09 Classification of International Standard: 27.120.20 Word Count Estimation: 109,188 Date of Issue: 2022-12-30 Date of Implementation: 2023-07-01 Older Standard (superseded by this standard): GB/T 9225-1999 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 9225-2022: Application guidelines of reliability analysis in nuclear power generating station systems and other nuclear facilities---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 27.120.20 CCSF83 National Standards of People's Republic of China Replacing GB/T 9225-1999 Reliability of nuclear power plant systems and other nuclear facilities Analysis Application Guide Posted on 2022-12-30 2023-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee table of contentsPreface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Abbreviations 3 5 Purpose and method 4 6 Qualitative Analysis Principles 7 7 Principles of Quantitative Analysis 17 8 Data Acquisition and Application 38 9 Applications of Reliability Methods 50 Appendix A (informative) Illustrative example 62 Appendix B (Informative) Data Program 96 Appendix C (informative) Mean time to repair97 References 102forewordThis 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 9225-1999 "General Principles for Reliability Analysis of Nuclear Power Plant Safety Systems", and is consistent with GB/T 9225-1999 In addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The definitions of the terms "availability", "reliability", "failure", "common cause failure" and "test interval time" were revised (see Chapter 3,.1999 Chapter 3 of the annual edition); b) Added abbreviations (see Chapter 4); c) Added the severity\\occurrence\\detectability classification of FMEA (see 6.2.3); d) Added the application of reliability analysis method and example "Monte Carlo method" (see 9.6, Appendix A). Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Nuclear Instruments Standardization Technical Committee (SAC/TC30). This document is drafted by. China Nuclear Power Engineering Co., Ltd., China Nuclear Power Research and Design Institute. The main drafters of this document. Xing Ji, Xu Simin, Huang Suwen, Chen Xiyu, Du Dejun, Chen Rigang, Zhang Yufeng, Wang Shuo, Feng Jia, Chen Peng, Zhong Sijie, Wang Lin. The release status of previous versions of this document and the documents it replaces are as follows. --- First published as GB/T 9225-1988 in 1988, first revised in.1999; --- This is the second revision. Reliability of nuclear power plant systems and other nuclear facilities Analysis Application Guide1 ScopeThis document provides design and operation personnel of nuclear power plant safety systems and relevant management departments for the reliability and safety of nuclear power plant safety systems. General methods and steps of usability analysis. This document is applicable to the qualitative and quantitative analysis of the reliability of the safety system of nuclear power plants, and is applicable to each stage of the life cycle of the safety system of nuclear power plants. stage. The qualitative and quantitative analysis principles of this document are applicable to the analysis of the impact of component failures on system reliability. The general reliability and availability analysis methods in this document are applicable to structures, systems and components of nuclear power plants and other nuclear facilities.2 Normative referencesThe contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references, only The version corresponding to this date applies to this document; for undated references, the latest version (including all amendments) applies to this document. GB/T 7163 Nuclear Power Plant Safety System Reliability Analysis Requirements GB/T 13284.1 Nuclear Power Plant Safety System Part 1.Design Criteria3 Terms and DefinitionsThe following terms and definitions apply to this document. 3.1 availability availability Under the premise of obtaining the required external resources, an item or system executes its specifications at a given moment or within a given period of time under specified conditions Ability to define functions. Note. Availability is divided into steady-state availability and transient availability. 3.2 steady-state availability steady-state availability The fraction of time that an item (or system) is expected to perform satisfactorily in long-term operation. Note. The availability of repairable items can be classified as long-term steady-state availability. 3.3 reliability reliability The probability that an item will perform a required function in a given state and within a given time interval (mission time). 3.4 fault fault/failure failure failure Loss of the ability of a structure, system or component to perform its function within the acceptance criteria. Note. The failure may be not indicated and not detected before the next test (unindicated failure), or it may be indicated and detected by some method when it occurs. Detected (indicated fault). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 9225-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 9225-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 9225-2022?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 9225-2022 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
