1、BRITISH STANDARD BS EN 60300-3-2:2005 Dependability management Part 3-2: Application guide Collection of dependability data from the field The European Standard EN 60300-3-2:2005 has the status of a British Standard ICS 03.100.40; 03.120.01 BS EN 60300-3-2:2005 This British Standard was published un
2、der the authority of the Standards Policy and Strategy Committee on 14 April 2005 BSI 14 April 2005 ISBN 0 580 45816 4 National foreword This British Standard is the official English language version of EN 60300-3-2:2005. It is identical IEC 60300-3-2:2004. It supersedes BS 5760-11:1994 which is wit
3、hdrawn. The UK participation in its preparation was entrusted to Technical Committee DS/1, Dependability and terotechnology, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards whic
4、h implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publicat
5、ion does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/
6、European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page
7、, pages 2 to 40, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 60300-3-2 NORME EUROPENNE EUROPISCHE NORM March 2005 CENELEC Europea
8、n Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for C
9、ENELEC members. Ref. No. EN 60300-3-2:2005 E ICS 03.100.40; 03.120.01 English version Dependability management Part 3-2: Application guide Collection of dependability data from the field (IEC 60300-3-2:2004) Gestion de la sret de fonctionnement Partie 3-2: Guide dapplication Recueil de donnes de sre
10、t de fonctionnement dans des conditions dexploitation (CEI 60300-3-2:2004) Zuverlssigkeitsmanagement Teil 3-2: Anwendungsleitfaden - Erfassung von Zuverlssigkeitsdaten im Betrieb (IEC 60300-3-2:2004) This European Standard was approved by CENELEC on 2005-02-01. CENELEC members are bound to comply wi
11、th the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European 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 Secretar
12、iat or to any CENELEC member. This European Standard exists in three official versions (English, 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
13、official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Sl
14、ovenia, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of document 56/992/FDIS, future edition 2 of IEC 60300-3-2, prepared by IEC TC 56, Dependability, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60300-3-2 on 2005-02-01. The following dates wer
15、e fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2008-02-01 Annex ZA has been added by CENELE
16、C. _ Endorsement notice The text of the International Standard IEC 60300-3-2:2004 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 60300-3-1 NOTE Harmonized as EN
17、60300-3-1:2004 (not modified). IEC 60300-3-3 NOTE Harmonized as EN 60300-3-3:2004 (not modified). IEC 60812 NOTE Harmonized as HD 485 S1:1987 (not modified). IEC 61014 NOTE Harmonized as EN 61014:2003 (not modified). IEC 61025 NOTE Harmonized as HD 617 S1:1992 (not modified). IEC 61078 NOTE Harmoniz
18、ed as EN 61078:1993 (not modified). IEC 61164 NOTE Harmonized as EN 61164:2004 (not modified). IEC 61703 NOTE Harmonized as EN 61703:2002 (not modified). IEC 61709 NOTE Harmonized as EN 61709:1998 (not modified). _ Page2 EN6030032:2005CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Ter
19、ms and definitions .6 4 Legal considerations 7 5 Objectives of data collection.7 6 Considerations on level of reporting .11 7 Which analysis can be performed ? 11 8 Which data can be collected ?12 8.1 General .12 8.2 Inventory.12 8.3 Usage .13 8.4 Environment13 8.5 Events.14 8.6 Data sources.15 9 An
20、alysis methods and their data requirements16 10 Resources 18 11 Planning.19 12 Philosophies of data collection .20 12.1 General .20 12.2 Time based continuous and discontinuous20 12.3 Complete and limited.23 12.4 Quantitative and qualitative data collection25 12.5 Data censoring in data collection.2
21、5 13 Methods of data collection28 13.1 General .28 13.2 Data stewardship.29 13.3 Automation of data collection 29 Annex A (informative) Data and information quality.32 Annex B (informative) Data validation .35 Annex C (informative) ISO references to sampling37 Annex ZA (normative) Normative referenc
22、es to international publications with their corresponding European publications .38 Bibliography39 Figure 1 Feedback into design process10 Figure 2 Continuous data collection .21 Figure 3 Windowed data collection.21 Figure 4 Multiple window data collection 22 Page3 EN6030032:2005Figure 5 Various tim
23、e metrics 23 Figure 6 Data with right censoring (suspended) .26 Figure 7 Data with interval censoring .27 Figure 8 Data with left censoring27 Figure A.1 The distinction between accuracy and precision34 Table 1 Data requirements for dependability methods, why they should be used, and IEC reference .1
24、6 Table C.1 ISO references to sampling37 Page4 EN6030032:2005INTRODUCTION The collection and analysis of failure and usage data from the field plays an important role in dependability analysis. It enables: a) maintenance planning; b) justification of modifications; c) calculation of future resource
25、and spares requirements; d) confirmation of contractual satisfaction; e) assessment of likelihood of achieving a successful mission; f) feedback to design and manufacturing; g) estimation of cost of warranty period; h) improve dependability requirements; i) collection of basic data for possible liab
26、ility cases; j) collection of usage data to determine field customer requirements which provide the basis for supplier dependability test specifications and demonstration programs. Data collection for dependability-related purposes is often a long-term activity. Data covering a lot of item operation
27、 and/or many items may be required before appropriate analysis can be completed. Data collection should be undertaken as a planned activity, and executed with appropriate goals in mind. In the shorter term, data collection objectives for dependability-related purposes include: 1) identification of n
28、ew product design shortfalls; 2) adjustment of logistic support; 3) identification of customer problems for correction; 4) root cause failure analysis to eliminate predominant failure modes in the next design. Analysis of dependability data requires clear understanding of the item, its operation, it
29、s environment and its physical properties. Analysis also needs good understanding of the general subject of dependability and its manifestation in the specific application. Before starting a data collection process, it is important to realize that data collection cannot usually be performed without
30、co-operation of all the parties involved. This may include item manufacturers, suppliers, repair authorities, users and customers. Page5 EN6030032:2005DEPENDABILITY MANAGEMENT Part 3-2: Application guide Collection of dependability data from the field 1 Scope This part of IEC 60300 provides guidelin
31、es for the collection of data relating to reliability, maintainability, availability and maintenance support performance of items operating in the field. It deals in general terms with the practical aspects of data collection and presentation and briefly explores the related topics of data analysis
32、and presentation of results. Emphasis is made on the need to incorporate the return of experience from the field in the dependability process as a main activity. This standard can be applied during monitoring of a population sample or, more widely, of whole populations. It is applicable, without res
33、triction to diverse items, from components to systems and networks, including hardware, software and man/machine interactions. The items considered may have been designed, manufactured, installed, operated and maintained by one or more organizations. This standard applies to all possible relationshi
34、ps between suppliers and users. It applies to situations where some items may be repaired on site while others may only be replaced on site and repaired at centralized facilities. No recommendations are made, however, of how to organize maintenance support. 2 Normative references The following refer
35、enced 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 60050-191, International Electrotechnical Vocabulary (IEV) Part
36、191: Dependability and quality of service 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-191 and the following apply. 3.1 environment continuous or intermittent stress that may cause an event to occur (e.g. failure, a re- replacement, etc.) fo
37、r an item 3.2 events things that happen to items NOTE Events include such things as removals, insertions, and upgrades. Additionally, how many occurrences, actuations, operating states, conditions, etc. are events that relate to product usage that can be evaluated from a damage perspective, where da
38、mage equivalence can be obtained with a higher frequency of the damaging event coupled with contributing damage factors from the application such as load, pressure, vibration, etc. Qualification of a product or system relates to understanding the distribution of damaging events per the significant s
39、ources of stress. Page6 EN6030032:20053.3 life time between conception of the item and the time at which it is removed from operation. 4 Legal considerations If a conflict should arise between this standard and the relevant contract or specification(s) the latter should apply. Since this standard re
40、quires several issues to be agreed on between the customer, the manufacturer and a third party (if any), all contracts should refer to this standard and any other standards which deal with dependability analysis or data collection procedures to be employed. In addition, the following applies. Where
41、selection of specific analysis or data collection techniques is concerned, the manner in which analysis or data collection are to be performed, or any other tailoring of the standard for purposes of the project is intended, the party given the discretion, and the areas in which discretion is to be e
42、xercised should specifically be mentioned in the contract or analysis or data collection specification. Where specific analysis or data collection procedures is concerned, the manner of performance of analysis or data collection, or other tailoring has to be agreed to, the agree- ments should be sta
43、ted in an annex in the contract or analysis or data collection specification. Finally, where any matter requiring agreement has not been resolved, such areas should be specifically identified in the contract or analysis or data collection plan, and suitable provisions including deadlines for agreeme
44、nt and dispute resolution procedures should be stated. In all instances, the applicable contract or sub-contract should identify the party responsible for performing the analysis or data collection, the party liable for consequence of failure to comply with the specifications, the scope of or limita
45、tions of such liability, and the nature of or limitations on remedies available to the damaged party, witnessing of or participation in the analysis or data collection program by the customer. 5 Objectives of data collection All customers needs and expectations focusing on dependability can be categ
46、orized as follows: a) life time issues; b) availability; c) service issues; d) cost of ownership issues; e) operational reliability; f) safety. In addition, the consumers point of view concentrates on g) durability; h) value for money; i) service. Page7 EN6030032:2005In addition, professional custom
47、ers may be interested in j) validation of fulfilment of requirements of purchased items; k) logistics optimization; l) spare stock optimization; m) maintenance optimization; n) maintainability studies; o) availability studies. Society as a whole is interested in safety, low risk and security. Those
48、aspects can be influenced by dependability properties of items. Also economics is influenced by dependability properties, therefore public interest exists. From the manufacturers point of view the following aspects are important: comparison with similar products on the market; base for improvements
49、for the next generation of the product. Dependability can have different drivers within different sorts of companies. In general private companies use dependability as a means of increasing or maintaining profits while governmental or charity based companies use it as a means of maintaining a service. This can mean that the different sorts of companies will collect dependability data for different reasons. The
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