1、Electrical installations in shipsPart 202: System design ProtectionBS IEC 60092-202:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of IEC 60092-202:2016. Itsupersedes BS IEC 60092-202:1994 which is
2、withdrawn.The UK participation in its preparation was entrusted to Technical Committee JPEL/18, Electrical installations of ships and of mobile and fixed offshore units.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport
3、to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 84359 4ICS 47.020.60Compliance with a British Standard cannot confer immunity fromlegal obligations.T
4、his British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS IEC 60092-202:2016IEC 60092-202 Edition 5.0 2016-09 INTERNATIONAL STANDARD NORME INTERNATIONALE
5、 Electrical installations in ships Part 202: System design Protection Installations lectriques bord des navires Partie 202: Conception des systmes Protection INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 47.020.60 ISBN 978-2-8322-3599-7 Registered trademark
6、 of the International Electrotechnical 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. BS IE
7、C 60092-202:2016 2 IEC 60092-202:2016 IEC 2016 CONTENTS FOREWORD . 4 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms and definitions 8 4 General requirements 10 4.1 General . 10 4.2 Basic protection 10 4.3 Studies and calculations . 10 5 Electrical load study 11 6 Short-circuit current c
8、alculations 11 7 Protection discrimination study 11 7.1 General . 11 7.2 Current selectivity . 12 7.3 Time-current selectivity . 12 7.4 Alternative protection schemes . 12 8 Characteristics and choice of protective devices with reference to short-circuit rating . 12 8.1 General . 12 8.2 Protective d
9、evices . 12 8.3 Rated short-circuit breaking capacity 13 8.4 Rated short-circuit making capacity. 13 8.5 Co-ordinated choice of protective devices with regard to discrimination requirements . 13 9 Choice of protective devices with reference to overload . 14 9.1 Mechanical switching devices . 14 9.2
10、Fuses for overload protection 14 9.3 Static or solid state switching devices . 15 10 Choice of protective devices with regard to their application 15 10.1 General . 15 10.2 Generator protection . 15 10.2.1 General . 15 10.2.2 Protection against short-circuits and fault currents on the generator side
11、 . 15 10.3 Protection of essential services . 16 10.4 Protection of transformers . 16 10.5 Circuit protection . 16 10.6 Motor protection 16 10.7 Accumulator (storage) battery protection . 1 7 10.8 Protection of meters, pilot lamps and control circuits . 17 10.9 Protection of static or solid-state de
12、vices 17 11 Reverse power and reverse current protection for AC generators 17 12 Undervoltage protection . 17 12.1 A.C. and DC generators 17 12.2 A.C. and DC motors 18 13 Overvoltage protection 18 BS IEC 60092-202:2016IEC 60092-202:2016 IEC 2016 3 13.1 General . 18 13.2 Transformers 18 13.3 AC machi
13、nes 18 14 Protection against under- and over-frequency 18 Bibliography 19 Figure 1 Continuity of supply and service . 14 BS IEC 60092-202:2016 4 IEC 60092-202:2016 IEC 2016 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRICAL INSTALLATIONS IN SHIPS Part 202: System design Protection FOREWORD 1) Th
14、e International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical an
15、d electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)“). Their preparation is entrusted to technical co
16、mmittees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization
17、for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committ
18、ee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is a
19、ccurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and reg
20、ional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, i
21、n some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or age
22、nts including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of,
23、 or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some
24、of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60092-202 has been prepared by IEC technical committee 18: Electrical installations of ships and of mobile and fixe
25、d offshore units. This fifth edition cancels and replaces the fourth edition published in 1994 and Amendment 1:1996. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: BS IEC 60092-202:2016IEC 60092-2
26、02:2016 IEC 2016 5 This document: Clause/subclause No. and heading Previous document: Corresponding clause/subclause No., remark 1 Scope 1, No change 2 Normative references 2, Updated 3 Definitions 3, Several definitions changed and added 4 General requirements 4, Text changed 4.1 General New clause
27、/subclause 4.2 Basic protection New clause/subclause 4.3 Studies and calculations New clause/subclause 5 Electrical load study New clause/subclause 6 Short-circuit current calculations 5, Heading change - 5.1, Text changed and moved to new Clause 6 - 5.2, Text deleted, for DC-Systems reference to IE
28、C 61660-1 added 7 Protection discrimination study New clause/subclause 7.1 General New clause/subclause 7.2 Current selectivity New clause/subclause 7.3 Time-current selectivity New clause/subclause 8 Characteristics and choice of protective devices with reference to short-circuit rating 6, Text com
29、pletely revised and extended 8.1 General 6.1 8.2 Protective devices New clause/subclause 8.3 Rated short-circuit breaking capacity 6.2 8.4 Rated short-circuit making capacity 6.3 8.5 Co-ordinated choice of protective devices with regard to discrimination requirements 6.4, Heading changed, new text 9
30、 Choice of protective devices with reference to overload 7 9.1 Mechanical switching devices 7.1 9.2 Fuses for overload protection 7.2 10 Choice of protective devices with regard to their application 8 10.1 General 8.1 10.2 Generator protection 8.2 10.3 Protection of essential services 8.3 10.4 Prote
31、ction of transformers 8.4 10.5 Circuit protection 8.5 10.6 Motor protection 8.6 10.7 Accumulator (storage) battery protection 8.9 10.8 Protection of meters, pilot lamps and control circuits 8.10 10.9 Protection of static or solid-state devices 8.11 11 Reverse power and reverse current protection for
32、 AC generators 9 11 Reverse power and reverse current protection for AC generators 9.1 - 9.2 12 Undervoltage protection 10 12.1 AC and DC generators 10.1 BS IEC 60092-202:2016 6 IEC 60092-202:2016 IEC 2016 This document: Clause/subclause No. and heading Previous document: Corresponding clause/subcla
33、use No., remark 12.2 AC and DC motors 10.2 13 Overvoltage protection 11 13.1 General New clause/subclause 13.2 Transformers 11.1 13.3 AC machines 11.2 14 Protection against under- and over-frequency New clause/subclause The text of this standard is based on the following documents: FDIS Report on vo
34、ting 18/1538/FDIS 18/1542/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of the IEC 60092 series, publishe
35、d under the general title Electrical installations in ships, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific
36、publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS IEC 60092-202:2016IEC 60092-202:2016 IEC 2016 7 INTRODUCTION The IEC 60092 series includes international standards for electrical installations in sea-going ships, incorporating g
37、ood practice and co-ordinating as far as possible existing rules. These standards form a code of practical interpretation and amplification of the requirements of the International Convention for the safety of life at sea, a guide for future regulations which may be prepared and a statement of pract
38、ice for use by ship owners, ship builders and appropriate organizations. BS IEC 60092-202:2016 8 IEC 60092-202:2016 IEC 2016 ELECTRICAL INSTALLATIONS IN SHIPS Part 202: System design Protection 1 Scope This part of IEC 60092 is applicable to the main features of the electrical protective system to b
39、e applied to electrical installations for use in ships. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references,
40、the latest edition of the referenced document (including any amendments) applies. IEC 60909 (all parts), Short-circuit currents in three-phase a.c. systems IEC 60909-0, Short-circuit currents in three-phase a.c. systems Part 0: Calculation of currents IEC TR 60909-1, Short-circuit currents in three-
41、phase a.c. systems Part 1: Factors for the calculation of short-circuit currents according to IEC 60909-0 IEC 60947-2:2006, Low-voltage switchgear and controlgear Part 2: Circuit-breakers IEC 60947-2:2006/AMD1:2009 IEC 60947-2:2006/AMD2:2013 IEC 61140, Protection against electric shock Common aspect
42、s for installation and equipment IEC 61363-1, Electrical installations of ships and mobile and fixed offshore units Part 1: Procedures for calculating short-circuit currents in three-phase a.c. IEC 61660-1, Short-circuit currents in d.c. auxiliary installations in power plants and substations Part 1
43、: Calculation of short-circuit currents IEC 62271-100, High-voltage switchgear and controlgear Part 100: Alternating-current circuit-breakers 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in
44、 standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 rated load the highest value of load specified for rated conditions 3.2 overload operating conditions in an electrically undama
45、ged circuit, which cause an overload above the rated load BS IEC 60092-202:2016IEC 60092-202:2016 IEC 2016 9 SOURCE: IEC 60050-441:1984, 441-11-08, modified The words “which cause an over-current“ has been replaced with “which cause an overload above the rated load“. 3.3 over-current current exceedi
46、ng the rated current SOURCE IEC 60050-441:1984, 441-11-06 3.4 short-circuit accidental or intentional conductive path between two or more conductive parts forcing the electric potential differences between these conductive parts to be equal to or close to zero SOURCE IEC 60050-195:1998, 195-04-11 3.
47、5 backup protection protection equipment or system which is intended to operate when a system fault is not cleared in due time because of: failure or inability of a protective device closest to the fault to operate or failure of a protective device other than the protective device closest to the fau
48、lt to operate Note 1 to entry: This definition differs from the one given in IEC 60050-448:1995, 448-11-14. 3.6 over-current discrimination selectivity co-ordination of the operating characteristics of two or more over-current protective devices such that, on the incidence of over-currents within st
49、ated limits, the device intended to operate within these limits does so, while the other(s) does (do) not Note 1 to entry: Distinction is made between series discrimination, involving different over-current protective devices passing substantially the same over-current, and network discrimination involving identical protective devices passing different proportions of the over-current. SOURCE 60050-441:1984, 441-17-15, modified The term “selectivity“ ha
