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    IEC 61557-15-2014 Electrical safety in low voltage distribution systems up to 1000 V a.c and 1500 V d.c equipment for testing measuring or monitoring of protective measures - Part .pdf

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    IEC 61557-15-2014 Electrical safety in low voltage distribution systems up to 1000 V a.c and 1500 V d.c equipment for testing measuring or monitoring of protective measures - Part .pdf

    1、 IEC 61557-15 Edition 1.0 2014-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 15: Functional safety requirements for insulation monitor

    2、ing devices in IT systems and equipment for insulation fault location in IT systems Scurit lectrique dans les rseaux de distribution basse tension de 1 000 V c.a. et 1 500 V c.c. Dispositifs de contrle, de mesure ou de surveillance de mesures de protection Partie 15: Exigences de scurit fonctionnell

    3、e pour les contrleurs disolement de rseaux IT et les dispositifs de localisation de dfauts disolement pour rseaux IT IEC 61557-15:2014-02(EN-FR) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publicatio

    4、n may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enqui

    5、ry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. Droits de reproduction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque

    6、forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lIEC ou du Comit national de lIEC du pays du demandeur. Si vous avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette pub

    7、lication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission

    8、 (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest

    9、edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for

    10、PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Publ

    11、ished - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms contai

    12、ning more than 30 000 terms and definitions in English and French, with equivalent terms in 14 additional languages. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Glossary - std.iec.ch/glossary More than 55 000 electrotechnical terminology entries in English and Frenc

    13、h extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need furth

    14、er assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrotechnique Internationale (IEC) est la premire organisation mondiale qui labore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies appare

    15、ntes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les r

    16、enseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android et iPad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications

    17、 IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. IEC Just Published - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les no

    18、uvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne de termes lectroniques et lectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents

    19、dans 14 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire IEC - std.iec.ch/glossary Plus de 55 000 entres terminologiques lectrotechniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues dep

    20、uis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 61557-15 Edition 1.0 2014-02

    21、INTERNATIONAL STANDARD NORME INTERNATIONALE Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 15: Functional safety requirements for insulation monitoring devices in IT systems and equi

    22、pment for insulation fault location in IT systems Scurit lectrique dans les rseaux de distribution basse tension de 1 000 V c.a. et 1 500 V c.c. Dispositifs de contrle, de mesure ou de surveillance de mesures de protection Partie 15: Exigences de scurit fonctionnelle pour les contrleurs disolement d

    23、e rseaux IT et les dispositifs de localisation de dfauts disolement pour rseaux IT INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XC ICS 17.220.20, 29.080.01, 29.240.01 PRICE CODE CODE PRIX ISBN 978-2-8322-1406-0 Registered trademark of the International Electro

    24、technical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 61557-15 IEC:2014 CONTENTS FOREW

    25、ORD . 6 INTRODUCTION . 8 1 Scope 10 2 Normative references 10 3 Terms, definitions and abbreviations . 11 3.1 Terms and definitions . 11 3.2 Abbreviations . 22 4 Definition of safety functions embedded in IMDs and IFLSs . 23 4.1 General 23 4.2 Definition of safety functions 23 4.2.1 Local insulation

    26、 warning (LIW) 23 4.2.2 Remote insulation warning (RIW) 24 4.2.3 Local location warning (LLW) 24 4.2.4 Remote location warning (RLW) 24 4.2.5 Remote enabling / disabling command (REDC) . 25 4.2.6 Local transformer monitoring warning (LTMW) 25 5 Requirements on products implementing safety-related fu

    27、nctions 25 5.1 Requirement on non-safety-related functions . 25 5.2 Additional performance requirements for products implementing safety functions 26 5.2.1 General 26 5.2.2 Additional performance requirements for IMDs complying with SIL 1 or SIL 2 . 26 5.2.3 Additional performance requirements for I

    28、FLSs complying with SIL 1 or SIL 2 . 26 6 Management of functional safety during the development lifecycle 26 6.1 Management of functional safety for the IT system . 26 6.2 Use of IMDs and IFLSs in IT systems. 27 6.3 Safety lifecycle of IMDs and IFLSs in the realisation phase 27 7 Management of func

    29、tional safety during the realisation lifecycle of IMDs and IFLSs. 28 7.1 General 28 7.2 IMD and IFL design requirement specification (phase 10.1) . 29 7.2.1 Specification of functional safety requirements . 29 7.2.2 Provisions for the development of safety functions . 29 7.2.3 Verification plan for

    30、the development of safety functions . 30 7.2.4 Validation plan for the development of safety functions . 30 7.2.5 Planning of commissioning, installation and setting into operation 30 7.2.6 Planning of user documentation 31 7.3 IMD and IFLS safety validation planning (phase 10.2) 31 7.3.1 General 31

    31、 7.3.2 Functional safety plan . 31 7.4 IMD and IFLS design and development (phase 10.3) . 32 7.4.1 General 32 7.4.2 Design standards 32 7.4.3 Realization . 32 61557-15 IEC:2014 3 7.4.4 Safety integrity and fault detection 32 7.4.5 Safety integrity level (SIL) assignment 33 7.4.6 Hardware requirement

    32、s 33 7.4.7 Software requirements 33 7.4.8 Review of requirements 33 7.4.9 Requirements for the probability of dangerous failure on demand (PFD) 34 7.4.10 Failure rate data . 35 7.4.11 Diagnostic test interval . 35 7.4.12 Architectural constraints . 35 7.4.13 Estimation of safe failure fraction (SFF)

    33、 37 7.4.14 Requirements for systematic safety integrity . 37 7.5 IMD and IFLS integration (phase 10.4) . 40 7.5.1 Hardware integration 40 7.5.2 Software integration 40 7.5.3 Modifications during integration 40 7.5.4 Integration tests 40 7.6 IMD and IFLS documentation related to installation, commiss

    34、ioning, operation and maintenance procedures (phase 10.5) . 41 7.6.1 General 41 7.6.2 Functional specification 41 7.6.3 Compliance information 41 7.6.4 Information for commissioning, installation, setting into operation, operation and maintenance 41 7.7 IMD and IFLS safety validation (phase 10.6) 42

    35、 7.7.1 General 42 7.7.2 Test 42 7.7.3 Verification . 42 7.7.4 Validation . 43 7.7.5 EMC requirements 43 8 Requirements for modifications 44 8.1 General 44 8.2 Modification request . 44 8.3 Impact analysis 44 8.4 Authorization 44 9 Proven in use approach . 44 Annex A (informative) Risk analysis and S

    36、IL assignment for IMDs and IFLSs 45 A.1 General 45 A.2 SIL assignment for IMDs and IFLSs . 47 A.3 Example of risk graph 48 A.4 Alternative method of SIL assignment quantitative method 49 Annex B (informative) Examples for the determination of PFD, DC and SFF 50 B.1 General 50 B.2 Examples of IMD and

    37、 IFLS architectures . 51 Annex C (informative) Failure rate databases 52 C.1 General 52 C.2 Failure rate references in current standards . 52 Annex D (informative) Guide to embedded software design and development 53 D.1 General 53 4 61557-15 IEC:2014 D.2 Software element guidelines 53 D.2.1 General

    38、 53 D.2.2 Interface with system architecture. 53 D.2.3 Software specifications . 53 D.2.4 Pre-existent software 54 D.2.5 Software design 55 D.2.6 Coding 55 D.3 Software development process guidelines 55 D.3.1 Development process: software lifecycle 55 D.3.2 Documentation: documentation management 55

    39、 D.3.3 Configuration and software modification management 56 D.3.4 Configuration and archiving management . 56 D.3.5 Software modifications management . 57 D.4 Development tools . 57 D.5 Reproduction of executable code production 57 D.6 Software verification and validation 57 D.7 General verificatio

    40、n and validation guidelines 57 D.8 Verification and validation review . 58 D.9 Software testing . 58 D.9.1 General validation 58 D.9.2 Software specification verification: validation tests . 59 D.9.3 Software design verification: software integration tests . 59 D.9.4 Detailed design verification: mo

    41、dule tests . 60 Annex E (informative) Information for the assessment of safety functions 61 E.1 General 61 E.2 Documentation management 61 E.3 Documentation provided for conformity assessment . 61 E.4 Documentation of the development lifecycle. 63 E.5 Design documentation . 63 E.6 Documentation of v

    42、erification and validation 63 E.7 Test documentation . 63 E.8 Documentation of modifications . 63 E.9 Information for use . 63 Annex F (informative) Example of applications . 64 F.1 Overview 64 F.2 Limitation in applications 64 F.3 Typical applications covered by IEC 61557-15 . 64 F.3.1 General 64 F

    43、.3.2 Local alarming 64 F.3.3 Local transformer monitoring warning . 65 F.3.4 Alarming and processing of remote insulation warning and/or remote location warning 66 F.3.5 Automatic disconnection of the complete IT system in case of a first insulation fault 67 F.3.6 Automatic disconnection of an IT sy

    44、stem sub-network 69 F.3.7 Management of multiple source system (two incomers or of incomer plus generator) 71 F.3.8 Management of multiple source systems (two incomers or of incomer plus generator with a load shedder) 72 Bibliography 74 61557-15 IEC:2014 5 Figure 1 Relationship between IEC 61557-15

    45、and related standards 8 Figure 2 Overall safety lifecycle applicable to an IT system . 27 Figure 3 IMD and IFLS safety lifecycle (in realisation phase) . 28 Figure A.1 Functional elements of an IT system and their relationship to the definitions and abbreviations of the IEC 61508 series . 45 Figure

    46、A.2 SIL assignment for IMDs and IFLSs 47 Figure A.2 Example of risk graph . 48 Figure B.1 Flowchart for PFD, DC, SFF determination . 51 Figure F.1 Local alarming, based on the systematic presence of one person and based on a well-defined alarming management process 65 Figure F.2 Local transformer mo

    47、nitoring warning, based on the systematic presence of a skilled person, and based on a well-defined alarming management process 66 Figure F.3 Alarming and processing of the remote insulation warning and/or the remote location warning in a supervisory control system . 67 Figure F.4 Disconnection of t

    48、he complete IT system in case of insulation fault detection . 68 Figure F.5 Threshold 1 warning information and threshold 2 disconnection of the complete IT system in case of an insulation fault detection . 69 Figure F.6 Automatic disconnection of a faulty feeder via direct signal from the IFLS . 70

    49、 Figure F.7 Automatic disconnection of a faulty feeder via a PLC 71 Figure F.8 Management of multiple source systems (two incomers or of one incomer plus generator) . 72 Figure F.9 Management of multiple source system (two incomers or of one incomer plus generator, with a load shedder) . 73 Table 1 Abbreviations with reference . 22 Table 2 Safety integrity levels (SIL) and probability of a dangerous f


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