IEC_61892-6_Mobile_and_fixed_offshore_units.pdf

INTERNATIONALSTANDARDIEC61892-6First edition1999-02Mobile and fixed offshore units Electrical installations Part 6:InstallationUnits mobiles et fixes en mer Installations lectriques Partie 6:InstallationReference numberIEC 61892-6:1999(E)Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Technip Abu Dabhi/5931917101 Not for Resale,12/07/2005 04:16:56 MSTNo reproduction or networking permitted without license from IHS-,-,-NumberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.Consolidated publicationsConsolidated versions of some IEC publications including amendments areavailable.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to thebase publication,the base publication incorporating amendment 1 and the basepublication incorporating amendments 1 and 2.Validity of this publicationThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to the date of the reconfirmation of the publication is availablein the IEC catalogue.Information on the subjects under consideration and work in progress undertaken bythe technical committee which has prepared this publication,as well as the list ofpublications issued,is to be found at the following IEC sources:IEC web site*Catalogue of IEC publicationsPublished yearly with regular updates(On-line catalogue)*IEC BulletinAvailable both at the IEC web site*and as a printed periodicalTerminology,graphical and letter symbolsFor general terminology,readers are referred to IEC 60050:International Electro-technical Vocabulary(IEV).For graphical symbols,and letter symbols and signs approved by the IEC forgeneral use,readers are referred to publications IEC 60027:Letter symbols to beused in electrical technology,IEC 60417:Graphical symbols for use on equipment.Index,survey and compilation of the single sheets and IEC 60617:Graphical symbolsfor diagrams.*See web site address on title page.Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Technip Abu Dabhi/5931917101 Not for Resale,12/07/2005 04:16:56 MSTNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONALSTANDARDIEC61892-6First edition1999-02Mobile and fixed offshore units Electrical installations Part 6:InstallationUnits mobiles et fixes en mer Installations lectriques Partie 6:InstallationPRICE CODE IEC 1999 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission3,rue de Varemb Geneva,SwitzerlandTelefax:+41 22 919 0300e-mail:inmailiec.ch IEC web site http:/www.iec.chPFor price,see current catalogue Commission Electrotechnique Internationale International Electrotechnical CommissionCopyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Technip Abu Dabhi/5931917101 Not for Resale,12/07/2005 04:16:56 MSTNo reproduction or networking permitted without license from IHS-,-,-2 61892-6 IEC:1999(E)CONTENTSPageFOREWORD.5INTRODUCTION.6Clause1 Scope.72 Normative references.73 Definitions.84 Earthing and bonding.94.1 General.94.2 Earthing of exposed conductive parts.104.3 Equipotential bonding.104.4 Bonding connections.114.5 Connections to the unit structure.114.6 Protection against galvanic corrosion.114.7 Metal coverings and mechanical protection of cables.114.8 Cable racks and cable tray.124.9 Ductings of heating,ventilation,air-condition(HVAC)and vessels.125 Cables and wiring.135.1 General.135.2 Installation.136 Generators and motors.136.1 General.136.2 Installation.137 Transformers.147.1 General.147.2 Installation and location.147.3 Isolation of windings.148 Switchgear and controlgear assemblies.158.1 General.158.2 Location.158.3 Insulating mats.158.4 Passageways in front of switchgear and controlgear assemblies.158.5 Space at the rear and passsageways.158.6 Positions of section and distribution boards.169 Semiconductor convertors.16Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Technip Abu Dabhi/5931917101 Not for Resale,12/07/2005 04:16:56 MSTNo reproduction or networking permitted without license from IHS-,-,-61892-6 IEC:1999(E)3 ClausePage10 Secondary cells and batteries.1610.1General.1610.2 Location.1610.3 Access.1710.4 Electrical installation in secondary battery compartments.1710.5 Protection against corrosion.1710.6 Fixing and supports.1810.7 Protection of circuits from secondary batteries.1811 Luminaires.1811.1 General.1811.2 Degree of protection and safety requirements.1811.3 Discharge lighting of voltage above 250 V.1811.4 Emergency lighting.1912Heating and cooking appliances.1912.1 Guarding of combustible materials.1912.2 Position of contro