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1、INTERNATIONALIECSTANDARD61850-7-4Firstedition2003-05Communicationnetworksandsystemsinsubstations–Part7-4:Basiccommunicationstructureforsubstationandfeederequipment–Compatiblelogicalnodeclassesanddataclasses--``````-`-`,,`,,`,`,,`---ReferencenumberIEC61850-7-4:2003(E)Copyr
2、ightInternationalElectrotechnicalCommissionProvidedbyIHSunderlicensewithIECNoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResalePublicationnumberingAsfrom1January1997allIECpublicationsareissuedwithadesignationinthe60000series.Forexample,IEC34-1isnowreferred
3、toasIEC60034-1.ConsolidatededitionsTheIECisnowpublishingconsolidatedversionsofitspublications.Forexample,editionnumbers1.0,1.1and1.2refer,respectively,tothebasepublication,thebasepublicationincorporatingamendment1andthebasepublicationincorporatingamendments1and2.Furtherin
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6、ionsTheon-linecatalogueontheIECwebsite(http://www.iec.ch/searchpub/cur_fut.htm)enablesyoutosearchbyavarietyofcriteriaincludingtextsearches,technicalcommitteesanddateofpublication.On-lineinformationisalsoavailableonrecentlyissuedpublications,withdrawnandreplacedpublication
7、s,aswellascorrigenda.•IECJustPublishedThissummaryofrecentlyissuedpublications(http://www.iec.ch/online_news/justpub/jp_entry.htm)isalsoavailablebyemail.PleasecontacttheCustomerServiceCentre(seebelow)forfurtherinformation.•CustomerServiceCentreIfyouhaveanyquestionsregardin
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