1、BRITISH STANDARD BS IEC 60092-506:2003 Electrical installations in ships Part 506: Special features Ships carrying specific dangerous goods and materials hazardous only in bulk ICS 47.020.60 BS IEC 60092-506:2003 This British Standard was published under the authority of the Standards Policy and Str
2、ategy Committee on 25 February 2004 BSI 25 February 2004 ISBN 0 580 43477 X National foreword This British Standard reproduces verbatim IEC 60092-506:2003 and implements it as the UK national standard. It supersedes BS IEC 60092-506:1996 which is withdrawn. The UK participation in its preparation wa
3、s entrusted to Technical Committee JPEL/18, Electrical installations of ships and of mobile and fixed offshore units, 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 which imple
4、ment 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 publication doe
5、s 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/Europea
6、n 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 IEC title page, page
7、s 2 to 13 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 CommentsINTERNATIONAL STANDARD IEC 60092-506 Second edition 2003-06 Electrical installations in ships Part 506: Special featu
8、res 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 Reference number IEC 60092-506:2003(E) BSIEC6
9、0092506:20031 2 -29006(3002:CEI 605)E INTERNATIONAL ELECTROTECHNICAL COMMISSION _ 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 o
10、rganization for standardization comprising all national electrotechnical committees (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 acti
11、vities, the IEC publishes International Standards. Their preparation is entrusted 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 al
12、so participate in this preparation. The IEC collaborates closely with the International 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
13、 as possible, an international consensus of opinion on the relevant subjects since 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, technic
14、al specifications, technical reports or guides and they are accepted by the National 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 r
15、egional standards. Any divergence between the IEC Standard and the corresponding 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
16、 with one of its standards. 6) Attention is drawn to the possibility that some of 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 b
17、y IEC technical committee 18: Electrical installations of ships and of mobile and 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 follo
18、ws: a) the latest revisions of the IMO Conventions have been incorporated; b) cognisance 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
19、 on the following documents: FDIS Report on voting 18/937/FDIS 18/940/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. BSIEC60092506:20032-29006(3002:CEI 605)E 3 This publication has been drafted in accordance wit
20、h the ISO/IEC Directives, Part 2. This standard is based on the following IMO documents: International 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 pr
21、actice for solid bulk cargoes (BC-Code) International Maritime Dangerous Goods Code (IMDG Code) The 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
22、 bilingual version of this standard may be issued at a later date. BSIEC60092506:20033 4 -29006(3002:CEI 605)E INTRODUCTION 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 s
23、everal chapters and paragraphs spread over a number of publications. The conditions necessary for the stowage of particular 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 technolog
24、y. This part of IEC 60092 summarizes the present IMO electrical requirements and gives in a single publication details of suitable measures regarding the explosion protection of electrical equipment, where such cargoes might cause risk of fire or explosion. BSIEC60092506:20034-29006(3002:CEI 605)E 5
25、 ELECTRICAL INSTALLATIONS IN SHIPS Part 506: Special features Ships carrying specific dangerous goods and materials hazardous only in bulk 1 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
26、specifically designed for the carriage of freight containers but intended for the carriage of dangerous goods in packaged form including goods in freight containers and portable tanks; b) purpose-built container ships and cargo spaces intended for the carriage of dangerous goods in freight container
27、s 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 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
28、goods, other than liquids and gases in bulk, in shipborne barges. 1.2 Dangerous goods, for which safety measures may be required with respect 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
29、form Class 1 Explosives, except goods in division 1.4, compatibility group S of the IMDG Code Class 2.1 All flammable gases, compressed, liquefied 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 havin
30、g 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 dangerous 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 fla
31、mmable gases Class 5.1 Oxidizing substances Class 9 Miscellaneous dangerous substances, that is, any other substance which experience has shown, 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 s
32、ufficient hazards to require specific precautions BSIEC60092506:20035 6 -29006(3002:CEI 605)E 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 edi
33、tion of the referenced document (including any amendments) applies. IEC 60079 (all parts), Electrical apparatus for explosive gas atmospheres IEC 60092-101:1994, Electrical installations in ships Part 101: Definitions and general requirements IEC 60092-502:1999, Electrical installations in ships Par
34、t 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, the following terms and definitions apply. 3.1 hazardous area area in which an explosive atmosphere is likely to occur in normal operation
35、 (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 an 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
36、 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 areas requires special precautions with respect to its construction, certification, and use and, when applicable, its installation. NOTE All app
37、ropriate measures should be taken to prevent flammable gas and/or dust entering spaces adjacent to the hazardous areas. The following are identified as hazardous 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 o
38、pen ro/ro cargo spaces as indicated in Annex B, item A b) permanently fixed magazines as indicated in Annex B, item A BSIEC60092506:20036-29006(3002:CEI 605)E 7 4.3 Dangerous goods 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
39、 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 B, item B. 4.3.2 Class 4.3 capable of creating explosive gas atmosphere Hazardous areas (comparable with zone 1): a) clo
40、sed 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 semi-enclosed spaces on open deck, within 1,5 m of any exhaust ventilation outlet of a hazardous area as indicated in Anne
41、x 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 appropriate measures are taken to prevent flammable gas or dust entering such spaces as indicated in Annex B, items D, E or F; Ex
42、tended 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 provided with the closing arrangements indicated in Annex B, item D, and inside the air lock itself if arranged as indicated i
43、n 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, 6.1 *and 8*, as defined in 1.2a) Hazardous areas (comparable with zone 1): a) closed cargo spaces as indicated in Annex
44、 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, within 1,5 m of any exhaust ventilation outlet of a hazardous area as indicated in Annex B, item G; d) enclosed or semi-enclo
45、sed 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 flammable gas or dust entering such spaces as indicated in Annex B, items D, E or F. Extended hazardous areas (comparable wit
46、h 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 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 s
47、urrounding 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) BSIEC60092506:20037 8 -29006(3002:CEI 605)E 5 Electrical equipment in hazardous areas and areas where explosives are stored 5.
48、1 General Electrical equipment and wiring shall not be fitted in hazardous areas and in areas where explosives are stored unless it is essential for the safety and operation of the ship. The electrical equipment installed and employed shall be suitable for the dangerous goods to be carried with due
49、consideration of the following criteria: for explosive dust concentration and in areas where explosives are stored degree of protection IPXX (see IEC 60529); surface temperature; for explosive gas atmosphere temperature class (IEC 60079 and IEC 60092-101, Clause 12); apparatus group (see IEC 60079 and IEC 60092-101, Clause 12). 5.2 Risk due to explosive dust only fr
