INTERNATIONALSTANDARDIEC60076-10Firstedition2001-05PowertransformersPart10:DeterminationofsoundlevelsTransformateursdepuissancePartie10:DéterminationdesniveauxdebruitReferencenumberIEC60076-10:2001(E)COPYRIGHT2002;InternationalElectrotechnicalCommissionDocumentprovidedbyIHSLicensee=QatarPetroleum/5943408104,User=,10/17/200202:56:14MDTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyManagementGroupat1-800-451-1584.--|||||||||||||||||||||||||||||||||||||---PublicationnumberingAsfrom1January1997allIECpublicationsareissuedwithadesignationinthe60000series.Forexample,IEC34-1isnowreferredtoasIEC60034-1.ConsolidatededitionsTheIECisnowpublishingconsolidatedversionsofitspublications.Forexample,editionnumbers1.0,1.1and1.2refer,respectively,tothebasepublication,thebasepublicationincorporatingamendment1andthebasepublicationincorporatingamendments1and2.FurtherinformationonIECpublicationsThetechnicalcontentofIECpublicationsiskeptunderconstantreviewbytheIEC,thusensuringthatthecontentreflectscurrenttechnology.Informationrelatingtothispublication,includingitsvalidity,isavailableintheIECCatalogueofpublications(seebelow)inadditiontoneweditions,amendmentsandcorrigenda.Informationonthesubjectsunderconsiderationandworkinprogressundertakenbythetechnicalcommitteewhichhaspreparedthispublication,aswellasthelistofpublicationsissued,isalsoavailablefromthefollowing:•IECWebSite()•CatalogueofIECpublicationsTheon-linecatalogueontheIECwebsite()enablesyoutosearchbyavarietyofcriteriaincludingtextsearches,technicalcommitteesanddateofpublication.On-lineinformationisalsoavailableonrecentlyissuedpublications,withdrawnandreplacedpublications,aswellascorrigenda.•IECJustPublishedThissummaryofrecentlyissuedpublications()isalsoavailablebyemail.PleasecontacttheCustomerServiceCentre(seebelow)forfurtherinformation.•CustomerServiceCentreIfyouhaveanyquestionsregardingthispublicationorneedfurtherassistance,pleasecontacttheCustomerServiceCentre:Email:custserv@iec.chTel:+41229190211Fax:+41229190300COPYRIGHT2002;InternationalElectrotechnicalCommissionDocumentprovidedbyIHSLicensee=QatarPetroleum/5943408104,User=,10/17/200202:56:14MDTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyManagementGroupat1-800-451-1584.--|||||||||||||||||||||||||||||||||||||---INTERNATIONALSTANDARDIEC60076-10Firstedition2001-05PowertransformersPart10:DeterminationofsoundlevelsTransformateursdepuissancePartie10:DéterminationdesniveauxdebruitPRICECODEIEC2001Copyright-allrightsreservedNopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromthepublisher.InternationalElectrotechnicalCommission3,ruedeVarembéGeneva,SwitzerlandTelefax:+41229190300e-mail:inmail@iec.chIECwebsite=QatarPetroleum/5943408104,User=,10/17/200202:56:14MDTQuestionsorcommentsaboutthismessage:pleasecalltheDocumentPolicyManagementGroupat1-800-451-1584.--|||||||||||||||||||||||||||||||||||||---260076-10IEC:2001(E)CONTENTSFOREWORD...........................................................................................................................3INTRODUCTION.....................................................................................................................51Scope...............................................................................................................................72Normativereferences.......................................................................................................73Definitions........................................................................................................................84Instrumentationandcalibration.........................................................................................95Choiceoftestmethod.......................................................................................................96Loadconditions................................................................................................................96.1General...................................................................................................................96.2No-loadcurrentandratedvoltage.........................................................................106.3Ratedcurrentandshort-circuitvoltage..................................................................106.4Reduced-loadcurrent............................................................................................117Principalradiatingsurface..............................................................................................117.1General.................................................................................................................117.2Transformerswithorwi