1、INTERNATIONAL STANDARD IEC 60092-506 Second edition 2003-06 Electrical installations in ships Part 506: Special features Ships carrying specific dangerous goods and materials hazardous only in bulk Installations lectriques bord des navires Partie 506: Caractristiques spciales Navires transportant de
2、s matires ou des marchandises spcifiques dangereuses, seulement en vrac Reference number IEC 60092-506:2003(E)Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1. Consolidated edi
3、tions The IEC is now publishing consolidated versions of its publications. For example, edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2. Further information on IEC
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8、tre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: +41 22 919 02 11 Fax: +41 22 919 03 00INTERNATIONAL STANDARD IEC 60092-506 Second edition 2003-06 Electrical installations in ships Part 506: Sp
9、ecial features Ships carrying specific dangerous goods and materials hazardous only in bulk Installations lectriques bord des navires Partie 506: Caractristiques spciales Navires transportant des matires ou des marchandises spcifiques dangereuses, seulement en vrac IEC 2003 Copyright - all rights re
10、served No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20,
11、Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch M For price, see current catalogue PRICE CODE Commission Electrotechnique Internationale International Electrotechnical Commission 2 60092-506 IEC:2003(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION
12、_ ELECTRICAL INSTALLATIONS IN SHIPS Part 506: Special features Ships carrying specific dangerous goods and materials hazardous only in bulk FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committ
13、ees (IEC National Committees). The object of the IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entruste
14、d to technical committees; 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. The IEC collaborates closely with the Intern
15、ational Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters, express as nearly as possible, an international consensus of opinion on the relevant subjects sin
16、ce each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the Nati
17、onal Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding
18、 national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the possibility that some o
19、f the elements of this International Standard may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60092-506 has been prepared by IEC technical committee 18: Electrical installations of ships and of mobile an
20、d fixed offshore units. This second edition of IEC 60092-506 cancels and replaces the first edition published in 1996 and constitutes a technical revision. The major changes with respect to the first edition are as follows: a) the latest revisions of the IMO Conventions have been incorporated; b) co
21、gnisance has been taken of the publication of IEC 60092-502, fifth edition, by giving comparisons with zones 1 and 2 hazardous areas and the incorporation of protection by overpressure. The text of this standard is based on the following documents: FDIS Report on voting 18/937/FDIS 18/940/RVD Full i
22、nformation on the voting for the approval of this standard can be found in the report on voting indicated in the above table.60092-506 IEC:2003(E) 3 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. This standard is based on the following IMO documents: Internation
23、al Convention for the Safety of Life at Sea (SOLAS) Chapter II-2, Regulation 19 Part G: Special requirements for ships carrying dangerous goods Chapter VII: Carriage of dangerous goods Code of safe practice for solid bulk cargoes (BC-Code) International Maritime Dangerous Goods Code (IMDG Code) The
24、committee has decided that the contents of this publication will remain unchanged until 2009. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. A bilingual version of this standard may be issued at a later date. 4 60092-506 IEC:2003(E) INTRODUCT
25、ION The Regulations and Codes of the International Maritime Organization (IMO) applicable to the carriage of dangerous goods and materials hazardous only in bulk are contained in several chapters and paragraphs spread over a number of publications. The conditions necessary for the stowage of particu
26、lar types and sources of ignition etc. are laid down in these IMO publications. These conditions are updated from time to time as ships become more complex with advancing technology. This part of IEC 60092 summarizes the present IMO electrical requirements and gives in a single publication details o
27、f suitable measures regarding the explosion protection of electrical equipment, where such cargoes might cause risk of fire or explosion.60092-506 IEC:2003(E) 5 ELECTRICAL INSTALLATIONS IN SHIPS Part 506: Special features Ships carrying specific dangerous goods and materials hazardous only in bulk 1
28、 Scope 1.1 This part of IEC 60092 is applicable to the electrical installations on the following types of ships and cargo spaces: a) ships and cargo spaces not specifically designed for the carriage of freight containers but intended for the carriage of dangerous goods in packaged form including goo
29、ds in freight containers and portable tanks; b) purpose-built container ships and cargo spaces intended for the carriage of dangerous goods in freight containers and portable tanks; c) ro/ro ships and ro/ro cargo spaces intended for the carriage of dangerous goods; d) ships and cargo spaces intended
30、 for the carriage of solid dangerous goods in bulk and materials hazardous only in bulk (MHB); e) ships and cargo spaces intended for the carriage of dangerous goods, other than liquids and gases in bulk, in shipborne barges. 1.2 Dangerous goods, for which safety measures may be required with respec
31、t to the electrical equipment, are specified in the IMO documents listed in the Foreword and grouped into the following classes. a) Dangerous goods in packaged form Class 1 Explosives, except goods in division 1.4, compatibility group S of the IMDG Code Class 2.1 All flammable gases, compressed, liq
32、uefied or dissolved under pressure Class 3 All flammable liquids having a flashpoint from 18 C up to 23 C (closed-cup test) Class 6.1 All toxic substances having a flashpoint below 23 C (closed-cup test) Class 8 All corrosive liquids having a flashpoint 23 C and below (closed-cup test) b) Solid dang
33、erous goods in bulk Class 4.1 Flammable solids Class 4.2 Substances liable to spontaneous combustion Class 4.3 Substances which, in contact with water, emit flammable gases Class 5.1 Oxidizing substances Class 9 Miscellaneous dangerous substances, that is, any other substance which experience has sh
34、own, or may show, to be of such a dangerous character that the provisions of this part will apply to it. c) MHB Materials which, when carried in bulk, present sufficient hazards to require specific precautions 6 60092-506 IEC:2003(E) 2 Normative references The following referenced documents are indi
35、spensable 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 60079 (all parts), Electrical apparatus for explosive gas atmospheres IEC 60092-101:1994
36、, Electrical installations in ships Part 101: Definitions and general requirements IEC 60092-502:1999, Electrical installations in ships Part 502: Tankers Special features IEC 60529:1989, Degrees of protection provided by enclosures (IP code) 3 Terms and definitions For the purposes of this document
37、, the following terms and definitions apply. 3.1 hazardous area area in which an explosive atmosphere is likely to occur in normal operation (comparable with zone 1 as defined in IEC 60092-502) NOTE An explosive atmosphere may exist due to gas and/or dust. 3.2 extended hazardous area area in which a
38、n explosive atmosphere is not likely to occur in normal operation and, if it does occur, is likely to do so only infrequently and will exist for a short period only (and comparable with zone 2 as defined in IEC 60092-502) 4 Hazardous areas 4.1 General Any electrical apparatus permitted in these area
39、s requires special precautions with respect to its construction, certification, and use and, when applicable, its installation. NOTE All appropriate measures should be taken to prevent flammable gas and/or dust entering spaces adjacent to the hazardous areas. The following are identified as hazardou
40、s areas. 4.2 Dangerous goods class 1 Hazardous areas for dangerous goods class 1 as defined in 1.2a): a) closed cargo spaces and closed or open ro/ro cargo spaces as indicated in Annex B, item A b) permanently fixed magazines as indicated in Annex B, item A60092-506 IEC:2003(E) 7 4.3 Dangerous goods
41、 as defined in 1.2b) and 1.2c) 4.3.1 Classes 4.1, 4.2, 9 and MHB capable of creating explosive dust atmosphere Hazardous areas (comparable with zone 1): a) closed cargo spaces as indicated in Annex B, item A; b) ventilation ducts, if any, serving the spaces identified in 4.3.1 as indicated in Annex
42、B, item B. 4.3.2 Class 4.3 capable of creating explosive gas atmosphere Hazardous areas (comparable with zone 1): a) closed cargo spaces as indicated in Annex B, item A; b) ventilation ducts, if any, serving the spaces identified in 4.3.2 as indicated in Annex B, item B; c) areas on open deck, or se
43、mi-enclosed spaces on open deck, within 1,5 m of any exhaust ventilation outlet of a hazardous area as indicated in Annex B, item G; d) enclosed or semi-enclosed spaces having a direct opening into any of the areas as identified in 4.3.2a) or 4.3.2b) as indicated in Annex B, item C, unless appropria
44、te measures are taken to prevent flammable gas or dust entering such spaces as indicated in Annex B, items D, E or F; Extended hazardous areas (comparable with zone 2): e) Enclosed or semi-enclosed spaces having a direct opening into any of the areas identified in 4.3.2a) or 4.3.2b) which are provid
45、ed with the closing arrangements indicated in Annex B, item D, and inside the air lock itself if arranged as indicated in Annex B, item F; f) Areas of 1,5 m surrounding open or semi-enclosed spaces of Zone 1 as specified in 4.3.2c) as indicated in Annex B, item G. 4.3.3 Dangerous goods class 2.1, 3,
46、 6.1 *and 8*, as defined in 1.2a) Hazardous areas (comparable with zone 1): a) closed cargo spaces as indicated in Annex B, item A; b) ventilation ducts, if any, serving the spaces identified in 4.3.3 as indicated in Annex B, item B; c) areas on open deck, or semi-enclosed spaces on open deck, withi
47、n 1,5 m of any exhaust ventilation outlet of a hazardous area as indicated in Annex B, item G; d) enclosed or semi-enclosed spaces having a direct opening into any of the areas as identified in 4.3.3a) or 4.3.3b) as indicated in Annex B, item C, unless appropriate measures are taken to prevent flamm
48、able gas or dust entering such spaces as indicated in Annex B, items D, E or F. Extended hazardous areas (comparable with zone 2): e) enclosed or semi-enclosed spaces having a direct opening into any of the areas identified in 4.3.3a) or 4.3.3b) which are provided with the closing arrangements indic
49、ated in Annex B, item D, and inside the air lock itself if arranged as indicated in Annex B, item F; f) areas of 1,5 m surrounding open or semi-enclosed spaces of zone 1 as specified in 4.3.3c) as indicated in Annex B, item G. _ *Liquids having a flashpoint of 23 C and below (closed-cup test) 8 60092-506 IEC:2003(E) 5 Electrical equipment in hazardous areas and areas where explosives are stored 5
