1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationDependability management Part 3-11: Application guide Reliability centred maintenanceBS EN 60300-3-11:2009National forewordThis British Standard is the UK implementation of EN 60
2、300-3-11:2009. It isidentical to IEC 60300-3-11:2009.The UK participation in its preparation was entrusted to Technical CommitteeDS/1, Dependability and terotechnology.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport t
3、o include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2010ISBN 978 0 580 56314 0ICS 03.100.40; 03.120.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the
4、 StandardsPolicy and Strategy Committee on 31 January 2010Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60300-3-11:2009EUROPEAN STANDARD EN 60300-3-11 NORME EUROPENNE EUROPISCHE NORM November 2009 CENELEC European Committee for Electrotechnical Standardization C
5、omit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60300-3-11:2009 E ICS 03
6、.100.40; 03.120.01 English version Dependability management - Part 3-11: Application guide - Reliability centred maintenance (IEC 60300-3-11:2009) Gestion de la sret de fonctionnement - Partie 3-11: Guide dapplication - Maintenance base sur la fiabilit (CEI 60300-3-11:2009) Zuverlssigkeitsmanagement
7、 - Teil 3-11: Anwendungsleitfaden - Auf die Funktionsfhigkeit bezogene Instandhaltung (IEC 60300-3-11:2009) This European Standard was approved by CENELEC on 2009-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europ
8、ean Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (Engl
9、ish, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria,
10、Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN
11、60300-3-11:2009EN 60300-3-11:2009 - 2 - Foreword The text of document 56/1312/FDIS, future edition 2 of IEC 60300-3-11, prepared by IEC TC 56, Dependability, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60300-3-11 on 2009-09-01. The following dates were fixed: lat
12、est date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-09-01 Annex ZA has been added by CENELEC. _ Endorse
13、ment notice The text of the International Standard IEC 60300-3-11:2009 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 61164 NOTE Harmonized as EN 61164:2004 (not
14、 modified). IEC 61649 NOTE Harmonized as EN 61649:2008 (not modified). IEC 61709 NOTE Harmonized as EN 61709:1998 (not modified). IEC 62308 NOTE Harmonized as EN 62308:2006 (not modified). ISO 9000 NOTE Harmonized as EN ISO 9000:2005 (not modified). _ BS EN 60300-3-11:2009- 3 - EN 60300-3-11:2009 An
15、nex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edi
16、tion of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60050-191 1990 International Electrotechnical Vocabulary (IEV) -
17、 Chapter 191: Dependability and quality of service - - IEC 60300-3-2 -1)Dependability management - Part 3-2: Application guide - Collection of dependability data from the field EN 60300-3-2 20052)IEC 60300-3-10 -1)Dependability management - Part 3-10: Application guide - Maintainability - - IEC 6030
18、0-3-12 -1)Dependability management - Part 3-12: Application guide - Integrated logistic support EN 60300-3-12 20042)IEC 60300-3-14 -1)Dependability management - Part 3-14: Application guide - Maintenance and maintenance support EN 60300-3-14 20042)IEC 60812 -1)Analysis techniques for system reliabil
19、ity - Procedure for failure mode and effects analysis (FMEA) EN 60812 20062)1)Undated reference. 2)Valid edition at date of issue. BS EN 60300-3-11:2009 2 60300-3-11 IEC:2009 CONTENTS INTRODUCTION.6 1 Scope.7 2 Normative references7 3 Terms, definitions and abbreviations .7 3.1 Definitions .8 3.2 Ab
20、breviations.11 4 Overview 11 4.1 General .11 4.2 Objectives .12 4.3 Types of maintenance14 5 RCM initiation and planning 15 5.1 Objectives for conducting an RCM analysis15 5.2 Justification and prioritization.16 5.3 Links to design and maintenance support.16 5.4 Knowledge and training17 5.5 Operatin
21、g context 17 5.6 Guidelines and assumptions 18 5.7 Information requirements.19 6 Functional failure analysis.20 6.1 Principles and objectives .20 6.2 Requirements for definition of functions .20 6.2.1 Functional partitioning20 6.2.2 Development of function statements.20 6.3 Requirements for definiti
22、on of functional failures 21 6.4 Requirements for definition of failure modes 21 6.5 Requirements for definition of failure effects 22 6.6 Criticality .22 7 Consequence classification and RCM task selection .23 7.1 Principles and objectives .23 7.2 RCM decision process .23 7.3 Consequences of failur
23、e 26 7.4 Failure management policy selection26 7.5 Task interval27 7.5.1 Data sources .27 7.5.2 Condition monitoring 28 7.5.3 Scheduled replacement and restoration29 7.5.4 Failure finding30 8 Implementation.30 8.1 Maintenance task details .30 8.2 Management actions30 8.3 Feedback into design and mai
24、ntenance support .30 8.4 Rationalization of tasks33 8.5 Implementation of RCM recommendations .34 8.6 Age exploration .34 8.7 Continuous improvement .34 BS EN 60300-3-11:200960300-3-11 IEC:2009 3 8.8 In-service feedback .35 Annex A (informative) Criticality analysis 37 Annex B (informative) Failure
25、finding task intervals.40 Annex C (informative) Failure patterns .42 Annex D (informative) Application of RCM to structures 44 Bibliography47 Figure 1 Overview of the RCM process.12 Figure 2 Evolution of an RCM maintenance programme14 Figure 3 Types of maintenance tasks .15 Figure 4 Relationship bet
26、ween RCM and other support activities.17 Figure 5 RCM decision diagram25 Figure 6 P-F Interval 28 Figure 7 ILS management process and relationship with RCM analysis.32 Figure 8 Risk versus cost considerations for rationalization of tasks .33 Figure 9 RCM continuous improvement cycle35 Figure C.1 Dom
27、inant failure patterns 42 Table A.1 Example of a criticality matrix .39 Table C.1 Failure pattern categories and frequency of occurrence 43 BS EN 60300-3-11:2009 6 60300-3-11 IEC:2009 INTRODUCTION Reliability centred maintenance (RCM) is a method to identify and select failure management policies to
28、 efficiently and effectively achieve the required safety, availability and economy of operation. Failure management policies can include maintenance activities, operational changes, design modifications or other actions in order to mitigate the consequences of failure. RCM was initially developed fo
29、r the commercial aviation industry in the late 1960s, resulting in the publication of ATA-MGS-3 12. RCM is now a proven and accepted methodology used in a wide range of industries. RCM provides a decision process to identify applicable and effective preventive maintenance requirements, or management
30、 actions, for equipment in accordance with the safety, operational and economic consequences of identifiable failures, and the degradation mechanism responsible for those failures. The end result of working through the process is a judgement as to the necessity of performing a maintenance task, desi
31、gn change or other alternatives to effect improvements. The basic steps of an RCM programme are as follows: a) initiation and planning; b) functional failure analysis; c) task selection; d) implementation; e) continuous improvement. All tasks are based on safety in respect of personnel and environme
32、nt, and on operational or economic concerns. However, it should be noted that the criteria considered will depend on the nature of the product and its application. For example, a production process will be required to be economically viable, and may be sensitive to strict environmental consideration
33、s, whereas an item of defence equipment should be operationally successful, but may have less stringent safety, economic and environmental criteria. Maximum benefit can be obtained from an RCM analysis if it is conducted at the design stage, so that feedback from the analysis can influence design. H
34、owever, RCM is also worthwhile during the operation and maintenance phase to improve existing maintenance tasks, make necessary modifications or other alternatives. Successful application of RCM requires a good understanding of the equipment and structure, as well as the operational environment, ope
35、rating context and the associated systems, together with the possible failures and their consequences. Greatest benefit can be achieved through targeting of the analysis to where failures would have serious safety, environmental, economic or operational effects. _ 2Figures in square brackets refer t
36、o the bibliography. BS EN 60300-3-11:200960300-3-11 IEC:2009 7 DEPENDABILITY MANAGEMENT Part 3-11: Application guide Reliability centred maintenance 1 Scope This part of IEC 60300 provides guidelines for the development of failure management policies for equipment and structures using reliability ce
37、ntred maintenance (RCM) analysis techniques. This part serves as an application guide and is an extension of IEC 60300-3-10, IEC 60300-3-12 and IEC 60300-3-14. Maintenance activities recommended in all three standards, which relate to preventive maintenance, may be implemented using this standard. T
38、he RCM method can be applied to items such as ground vehicles, ships, power plants, aircraft, and other systems which are made up of equipment and structure, e.g. a building, airframe or ships hull. Typically, equipment comprises a number of electrical, mechanical, instrumentation or control systems
39、 and subsystems which can be further broken down into progressively smaller groupings, as required. This standard is restricted to the application of RCM techniques and does not include aspects of maintenance support, which are covered by the above-mentioned standards or other dependability and safe
40、ty standards. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-19
41、1:1990, International Electrotechnical Vocabulary Chapter 191: Dependability and quality of service IEC 60300-3-2, Dependability management Part 3-2: Application guide Collection of dependability data from the field IEC 60300-3-10, Dependability management Part 3-10: Application guide Maintainabilit
42、y IEC 60300-3-12, Dependability management Part 3-12: Application guide Integrated logistic support IEC 60300-3-14, Dependability management Part 3-14: Application guide Maintenance and maintenance support IEC 60812, Analysis techniques for system reliability Procedure for failure mode and effects a
43、nalysis (FMEA) 3 Terms, definitions and abbreviations For the purposes of this document, the terms and definitions of IEC 60050-191 apply, together with the following. BS EN 60300-3-11:2009 8 60300-3-11 IEC:2009 3.1 Definitions 3.1.1 age exploration systematic evaluation of an item based on analysis
44、 of collected information from in-service experience to determine the optimum maintenance task interval NOTE The evaluation assesses the items resistance to a deterioration process with respect to increasing age or usage. 3.1.2 criticality severity of effect of a deviation from the specified functio
45、n of an item, with respect to specified evaluation criteria NOTE 1 The extent of effects considered may be limited to the item itself, to the system of which it is a part, or range beyond the system boundary. NOTE 2 The deviation may be a fault, a failure, a degradation, an excess temperature, an ex
46、cess pressure, etc. NOTE 3 In some applications, the evaluation of criticality may include other factors such as the probability of occurrence of the deviation, or the probability of detection. 3.1.3 damage-tolerant capable of sustaining damage and continuing to function as required, possibly at red
47、uced loading or capacity 3.1.4 failure (of an item) loss of ability to perform as required 3.1.5 failure effect consequence of a failure mode on the operation, function or status of the item 3.1.6 failure management policy maintenance activities, operational changes, design modifications or other ac
48、tions in order to mitigate the consequences of failure 3.1.7 function intended purpose of an item as described by a required standard of performance 3.1.8 failure mode manner in which failure occurs NOTE A failure mode may be defined by the function lost or the state transition that occurred. 3.1.9
49、failure-finding task scheduled inspection or specific test used to determine whether a specific hidden failure has occurred 3.1.10 functional failure reduction in function performance below desired level BS EN 60300-3-11:200960300-3-11 IEC:2009 9 3.1.11 hidden failure mode failure mode whose effects do not become apparent to the operator under normal circumstances 3.1.12 indenture level level of subdivision of an item from the point of
