1、INTERNATIONAL STANDARD IEC 60092502 Fifthedition 199902 Electricalinstallationsinships Part502: Tankers Specialfeatures Installationslectriquesborddesnavires Partie502: Naviresciternes Caractristiquesspciales Referencenumber IEC60092502:1999(E)Numbering Asfrom1January1997allIECpublicationsareissuedw
2、ithadesignationinthe 60000series. Consolidatedpublications ConsolidatedversionsofsomeIECpublicationsincludingamendmentsare available.Forexample,editionnumbers1.0,1.1and1.2refer,respectively,tothe basepublication,thebasepublicationincorporatingamendment1andthebase publicationincorporatingamendments1a
3、nd2. Validityofthispublication ThetechnicalcontentofIECpublicationsiskeptunderconstantreviewbytheIEC, thusensuringthatthecontentreflectscurrenttechnology. Informationrelatingtothedateofthereconfirmationofthepublicationisavailable intheIECcatalogue. Informationonthesubjectsunderconsiderationandworkin
4、progressundertakenby thetechnicalcommitteewhichhaspreparedthispublication,aswellasthelistof publicationsissued,istobefoundatthefollowingIECsources: IECwebsite* CatalogueofIECpublications Publishedyearlywithregularupdates (Onlinecatalogue)* IECBulletin AvailablebothattheIECwebsite*andasaprintedperiod
5、ical Terminology,graphicalandlettersymbols Forgeneralterminology,readersarereferredtoIEC60050: InternationalElectro technicalVocabulary (IEV). Forgraphicalsymbols,andlettersymbolsandsignsapprovedbytheIECfor generaluse,readersarereferredtopublicationsIEC60027: Lettersymbolstobe usedinelectricaltechno
6、logy,IEC60417:Graphicalsymbolsforuseonequipment. Index,surveyandcompilationofthesinglesheets and IEC60617: Graphicalsymbols fordiagrams. * Seewebsiteaddressontitlepage.INTERNATIONAL STANDARD IEC 60092502 Fifthedition 199902 Electricalinstallationsinships Part502: Tankers Specialfeatures Installation
7、slectriquesborddesnavires Partie502: Naviresciternes Caractristiquesspciales PRICECODE IEC1999 Copyrightallrightsreserved Nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicor mechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromthepublisher. Intern
8、ationalElectrotechnicalCommission 3,ruedeVarembGeneva,Switzerland Telefax:+41229190300 email:inmailiec.ch IECwebsitehttp:/ www.iec.ch S Forprice,seecurrentcatalogue CommissionElectrotechniqueInternationale InternationalElectrotechnicalCommission2 60092502IEC:1999(E) CONTENTS Page FOREWORD . 4 INTROD
9、UCTION . 5 Clause 1Scope. 6 2Normative references 6 3Definitions 7 4Area classification. 11 4.1General. 11 4.2 Tankerscarryingflammableliquidsotherthanliquefiedgaseshaving aflashpointnotexceeding60C,forexamplecrudeoil,oilproducts, chemicalproducts 15 4.3 Tankerscarryingflammableliquidshavingaflashpo
10、intexceeding60C 17 4.4 Tankerscarryingflammableliquefiedgases. 17 4.5 Tankerscarryingcargoes(forexampleacids)reactingwithother products/materialstoevolveflammablegases . 18 5Electrical systems. 18 5.1 Sourcesofelectricalpower 18 5.2Distribution systems 18 5.3Electrical protection. 18 5.4Equipotentia
11、l bonding 19 5.5Static electricity. 19 5.6Lightning protection. 20 5.7 Cathodicallyprotectedmetallicparts 20 5.8Electromagnetic radiation 20 6Electrical equipment. 20 6.1General. 20 6.2 Selectionofelectricalequipment 20 6.3 Certifiedsafetypeequipment. 22 6.4 Electricalequipmentofthetype“n”andthatwhi
12、chensurestheabsence ofsparksandarcsandof“hotspots”duringitsnormaloperation. 22 6.5 Electricalequipmentinhazardousareas 23 6.6Movable equipment 24 7Installation 2 4 7.1General. 24 7.2 Selectionofapparatus. 25 7.3 Wiringsystemgeneral 25 7.4 Cablewiringsystems. 2560092502IEC:1999(E) 3 7.5 Connectionofc
13、ables . 25 7.6Cable joints. 25 8 Ventilationandpressurisation . 26 8.1General. 26 8.2Design principles. 27 8.3 Ventilationrelatedtoareaclassification . 27 8.4 Protectionbyoverpressure . 27 9 Inspectionandmaintenance 29 9.1General. 29 9.2 Inspectionandtesting 29 9.3 Isolationofapparatus 29 9.4Mainten
14、ance 29 9.5 Qualificationsofpersonnel. 29 10Documentation. 29 10.1Area classification. 29 10.2Equipment. 30 10.3Installation. 31 10.4Maintenance 32 10.5 Administrationofthedocumentation 32 Annexes A(informative) ExamplesofhazardousareaclassificationBasicprinciples 33 B(informative) Examplesofhazardo
15、usareaclassificationTankerscarryingflammable liquidsotherthanliquefiedgaseshavingaflashpointnotexceeding60C, forexample,crudeoil,oilproducts,chemicalproducts 37 C(informative) ExamplesofhazardousareaclassificationTankerscarryingflammable liquidshavingaflashpointexceeding60CUnheatedcargoes andcargoes
16、heatedtotemperature(TH)below,andnotwithin15Cof, theirflashpoint(FP) 40 D(informative) ExamplesofhazardousareaclassificationTankerscarryingflammable liquefiedgases . 41 E(informative) ExamplesofhazardousareaclassificationTankercarryingcargoes (forexampleacids)reactingwithotherproducts/materialstoevol
17、ve flammablegases 434 60092502IEC:1999(E) INTERNATIONALELECTROTECHNICALCOMMISSION _ ELECTRICALINSTALLATIONSINSHIPS Part502:TankersSpecialfeatures FOREWORD 1) TheIEC(InternationalElectrotechnicalCommission)isaworldwideorganizationforstandardizationcomprising allnationalelectrotechnicalcommittees(IECN
18、ationalCommittees).TheobjectoftheIECistopromote internationalcooperationonallquestionsconcerningstandardizationintheelectricalandelectronicfields.To thisendandinadditiontootheractivities,theIECpublishesInternationalStandards.Theirpreparationis entrustedtotechnicalcommittees;anyIECNationalCommitteein
19、terestedinthesubjectdealtwithmay participateinthispreparatorywork.International,governmentalandnongovernmentalorganizationsliaising withtheIECalsoparticipateinthispreparation.TheIECcollaboratescloselywiththeInternationalOrganization forStandardization(ISO)inaccordancewithconditionsdeterminedbyagreem
20、entbetweenthetwo organizations. 2) TheformaldecisionsoragreementsoftheIEContechnicalmattersexpress,asnearlyaspossible,an internationalconsensusofopinionontherelevantsubjectssinceeachtechnicalcommitteehasrepresentation fromallinterestedNationalCommittees. 3) Thedocumentsproducedhavetheformofrecommend
21、ationsforinternationaluseandarepublishedintheform ofstandards,technicalreportsorguidesandtheyareacceptedbytheNationalCommitteesinthatsense. 4) Inordertopromoteinternationalunification,IECNationalCommitteesundertaketoapplyIECInternational Standardstransparentlytothemaximumextentpossibleintheirnationa
22、landregionalstandards.Any divergencebetweentheIECStandardandthecorrespondingnationalorregionalstandardshallbeclearly indicatedinthelatter. 5) TheIECprovidesnomarkingproceduretoindicateitsapprovalandcannotberenderedresponsibleforany equipmentdeclaredtobeinconformitywithoneofitsstandards. 6)Attentioni
23、sdrawntothepossibilitythatsomeoftheelementsofthisInternationalStandardmaybethesubject ofpatentrights.TheIECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights. InternationalStandardIEC60092502hasbeenpreparedbyIECtechnicalcommittee18: Electricalinstallationsofshipsandofmobileandfixedoffsh
24、oreunits. Thisfiftheditioncancelsandreplacesthefourtheditionpublishedin1994. Thetextofthisstandardisbasedonthefollowingdocuments: FDIS Reportonvoting 18/853/FDIS 18/862/RVD Fullinformationonthevotingfortheapprovalofthisstandardcanbefoundinthereporton votingindicatedintheabovetable. AnnexesA,B,C,Dand
25、Eareforinformationonly. Abilingualversionofthisstandardmaybeissuedatalaterdate.60092502IEC:1999(E) 5 INTRODUCTION Thisstandardintroducesthezonalconceptforhazardousareaclassificationandpermitsthe useofeartheddistributionsystems. Itshouldbenoted,however,thatitisnotinfullconcurrencewiththerequirementsf
26、orelectrical installationsinhazardousareasgiveninClause10.2oftheIBCCode 1) andClause10.2ofthe IGCCode 2) andthesystemearthingrequirementsofRegulationsII1/45.4.1and45.4.3of SOLAS 3) . UntiltheInternationalMaritimeOrganizationhasdecideduponcorrespondingamendmentsto theCodesandtoSOLAS,usersofthisstanda
27、rdareadvisedtoasktheappropriateauthorityto considerequivalenceinaccordancewiththe“Equivalents”provisionsofClause1.4oftheIBC CodeandClause1.4oftheIGCCodeandRegulationI/5ofSOLAS. _ 1) InternationalCodefortheConstructionandEquipmentofShipsCarryingDangerousChemicalsinBulk(1994 edition). 2) International
28、CodefortheConstructionandEquipmentofShipsCarryingLiquefiedGasesinBulk(1993edition). 3) SOLAStheInternationalConventionfortheSafetyofLifeatSea,1974,anditsProtocolof1978 (Consolidatededition,1997).6 60092502IEC:1999(E) ELECTRICALINSTALLATIONSINSHIPS Part502:TankersSpecialfeatures 1Scope ThispartofIEC6
29、0092dealswiththeelectricalinstallationsintankerscarryingliquidswhich areflammable,eitherinherently,orduetotheirreactionwithothersubstances,orflammable liquefiedgases. TherequirementsinotherpartsofIEC 60092alsoapplytotankers,unlessotherwise mentionedinthisstandard. 2 Normativereferences Thefollowingn
30、ormativedocumentscontainprovisionswhich,throughreferenceinthistext, constituteprovisionsofthispartofIEC60092.Atthetimeofpublication,theeditionsindicated werevalid.Allnormativedocumentsaresubjecttorevision,andpartiestoagreementsbased onthispartofIEC60092areencouragedtoinvestigatethepossibilityofapply
31、ingthemost recenteditionsofthenormativedocumentsindicatedbelow.MembersofIECandISOmaintain registersofcurrentlyvalidInternationalStandards. IEC60050(426):1990, InternationalElectrotechnicalVocabulary(IEV)Chapter426:Electrical apparatusforexplosiveatmospheres IEC600790:1983, Electricalapparatusforexpl
32、osivegasatmospheresPart0:General requirements IEC600791:1990, ElectricalapparatusforexplosivegasatmospheresPart1:Construction andverificationtestofflameproofenclosuresofelectricalapparatus IEC600792:1983, ElectricalapparatusforexplosivegasatmospheresPart2:Electrical apparatus,typeofprotectionp IEC60
33、0794:1975, ElectricalapparatusforexplosivegasatmospheresPart4:Methodoftest forignitiontemperature IEC600795:1997 ,ElectricalapparatusforexplosivegasatmospheresPart5:Powderfillingq IEC600796:1995, ElectricalapparatusforexplosivegasatmospheresPart6:Oilimmersiono IEC600797:1990, Electricalapparatusfore
34、xplosivegasatmospheresPart7:Increased safetye IEC6007910:1968,ElectricalapparatusforexplosivegasatmospheresPart10: Classificationofhazardousareas IEC6007911:1991, ElectricalapparatusforexplosivegasatmospheresPart11:Intrinsic safetyi60092502IEC:1999(E) 7 IEC6007912:1978,Electricalapparatusforexplosiv
35、egasatmospheresPart12: Classificationofmixturesofgasesorvapourswithairaccordingtotheirmaximumexperimental safegapsandminimumignitingcurrents IEC6007914:1996, ElectricalapparatusforexplosivegasatmospheresPart14:Electrical installationinhazardousareas(otherthanmines) IEC6007915:1987, Electricalapparat
36、usforexplosivegasatmospheresPart15:Electrical apparatuswithtypeofprotectionn IEC6007917:1990, ElectricalapparatusforexplosivegasatmospheresPart17:Inspection andmaintenanceofelectricalinstallationsinhazardousareas(otherthanmines) IEC6007918:1992,ElectricalapparatusforexplosivegasatmospheresPart18: En
37、capsulationm IEC6007919:1993, ElectricalapparatusforexplosivegasatmospheresPart19:Repairand overhaulforapparatususedinexplosiveatmospheres(otherthanminesorexplosives) IEC60092101:1994, ElectricalinstallationsinshipsPart101:Definitionsandgeneral requirements IEC60092201:1994, Electricalinstallationsi
38、nshipsPart201:SystemdesignGeneral IEC60092202:1994, ElectricalinstallationsinshipsPart202:SystemdesignProtection IEC60092350:1988, ElectricalinstallationsinshipsPart350:Lowvoltageshipboardpower cablesGeneralconstructionandtestrequirements IEC60092401:1980, ElectricalinstallationsinshipsPart401:Insta
39、llationandtestof completedinstallation 3Definitions ForthepurposeofthispartofIEC60092,thefollowingdefinitionsapply. 3.1 certifiedsafetypeequipment electricalequipmentofatypeforwhichanationalorotherappropriateauthorityhascarriedout thetypeverificationsandtestsnecessarytocertifythesafetyoftheequipment
40、withregardto explosionhazardwhenusedinanexplosivegasatmosphere 3.2 encapsulation“m” atypeofprotectioninwhichthepartswhichcouldigniteanexplosiveatmospherebyeither sparkingorheatingareenclosedinacompoundinsuchawaythatthisexplosiveatmosphere cannotbeignitedIEC6007818,3.1 3.3 enclosedspace anyspacewithi
41、nwhich,intheabsenceofartificialventilation,theventilationwillbelimitedand anyexplosiveatmospherewillnotbedispersednaturally8 60092502IEC:1999(E) 3.4 enclosure allthewallswhichsurroundthelivepartsofelectricalapparatusincludingdoors,covers, cableentries,rods,spindlesandshafts,ensuringtheprotectionofth
42、eelectricalapparatus IEV4260401,modified 3.5 explosionprotectedenclosure enclosure,themechanicalintegrityofwhichisconsideredessentialfor,andisexaminedin detailfor,itscertificationoracceptanceforuseinahazardousarea 3.6 explosivelimits 3.6.1 lowerexplosivelimit(LEL) concentrationofflammablegas,vapouro
43、rmistinair,belowwhichanexplosivegas atmospherewillnotbeformedIEV4260209 3.6.2 upperexplosivelimit(UEL) concentrationofflammablegas,vapourormistinair,abovewhichanexplosivegas atmospherewillnotbeformedIEV4260210 3.7 explosivegasatmosphere mixturewithair,underatmosphericconditions,offlammablesubstancesintheformofgas, vapourormist,inwhich,afterignition,combustionspreadsthroug
