IEC_60092-352-2005_2.pdf

INTERNATIONAL STANDARD IEC60092-352 Third edition2005-09 Electrical installations in ships Part 352:Choice and installation of electrical cables Reference number IEC 60092-352:2005(E)Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-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 editions 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 publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre 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 00 Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL STANDARD IEC60092-352 Third edition2005-09 Electrical installations in ships Part 352:Choice and installation of electrical cables IEC 2005 Copyright-all rights reserved 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,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch X For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 60092-352 IEC:2005(E)CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.8 2 Normative references.8 3 Types,construction,installation and operating conditions of cables.9 3.1 Types of cables.9 3.2 Voltage rating.10 3.3 Cross-sectional areas of conductors and current carrying capacities.11 3.4 Voltage drop.15 3.5 Estimation of lighting loads.15 3.6 Parallel connection of cables.15 3.7 Separation of circuits.16 3.8 Short circuit capacity(withstand capability).16 3.9 Conductor.16 3.10 Insulation material.16 3.11 Screen,core screen or shield.16 3.12 Sheathing material.16 3.13 Metallic braid or armour.17 3.14 Fire performance.17 3.15 Cable runs.18 3.16 Cable installation methods in relation to electromagnetic interference.19 3.17 Mechanical protection.19 3.18 Bending radius.20 3.19 Supports and fixing.21 3.20 Cables penetrating bulkheads and decks.21 3.21 Installation in metallic pipes or conduits or trunking.22 3.22 Installation in non-metallic pipes,conduits,trunking,ducts or capping and casing.22 3.23 Installation in battery compartments.23 3.24 Installation in refrigeration spaces.23 3.25 Tensile stress.23 3.26 Special precautions for single core cables for a.c.wiring.23 3.27 Cable ends.24 3.28 Joints and tappings(branch circuits).25 3.29 Joint boxes.25 Annex A(informative)Tabulated current carrying capacities Defined installations.29 Annex B(informative)Tabulated current carrying capacities General installations.40 Annex C(informative)Fire stops.47 Annex D(informative)Cable splicing.48 Bibliography.49 Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-60092-352 IEC:2005(E)3 Figure 1 Correction factors for half hour and one hour service.26 Figure 2 Time c