>> P.114
StandardnameStandardNumberAbstractIEC61000-4-5relatestotheimmunityrequirements,testmethods,andrangeofrecommendedtestlevelsforequipmentwithregardtounidirectionalsurgescausedbyover-voltagesfromswitchingandlightningtransients.Severaltestlevelsaredenedwhichrelatetodifferentenvironmentandinstallationconditions.Theserequirementsaredevelopedforandareapplicabletoelectricalandelectronicequipment.Theobjectofthisstandardistoestablishacommonreferenceforevaluatingtheimmunityofelectricalandelectronicequipmentwhensubjectedtosurges.Thetestmethoddocumenteddescribesaconsistentmethodtoassesstheimmunityofanequipmentorsystemagainstadenedphenomenon.Thisstandarddenesarangeof:--------testlevels;testequipment;testsetups;andtestprocedures.Thetaskofthedescribedlaboratorytestistofindthereac-tionoftheequipmentundertest(EUT)underspeciedoperationalconditionstosurgevoltagescausedbyswitchingandlightningeffects.ItisnotintendedtotestthecapabilityoftheEUT’sinsulationtowithstandhigh-voltagestress.Directinjectionsoflightningcurrents,i.e.directlightningstrikes,arenotconsideredinthisstandard.Thisthirdeditioncancelsandreplacesthesecondeditionpublishedin2005,andconstitutesatechnicalrevisionwhichincludesthefollowingsignicanttechnicalchangeswithrespecttothepreviousedition:anewAnnexEonmathematicalmodellingofsurgewaveforms;anewAnnexFonmeasurementuncertainty;anewAnnexGonmethodofcalibrationofimpulsemeasuringsystems;andanewAnnexHoncoupling/decouplingsurgestolinesratedabove200A.Moreoverwhilesurgetestforportsconnectedtooutsidetelecommunicationlineswasaddressedin6.2ofthesecondedition(IEC61000-4-5:2005),inthisthirdedition(IEC61000-4-5:2014)thenormativeAnnexAisfullydedicatedtothistopic.Inparticularitgivesthespecicationsofthe10/700µscombinedwavegenerator.Thisconsolidatedversionconsistsofthethirdedition(2014)anditsamendment1(2017).Therefore,noneedtoorderamendmentinadditiontothispublication.IEC61400-24:2019appliestolightningprotectionofwindturbinegeneratorsandwindpowersystems.Refertoguidelinesforsmallwindturbinesinannex.Thisdocumentdenesthelightningenvironmentforwindturbinesandriskassessmentforwindturbinesinthatenvironment.Itdenesrequirementsforprotectionofblades,otherstructuralcomponentsandelectricalandcontrolsystemsagainstbothdirectandindirecteffectsoflightning.Testmethodstovalidatecomplianceareincluded.Guidanceontheuseofapplicablelightningprotection,industrialelectricalandEMCstandardsincludingearthingisprovided.Electromagneticcompatibility(EMC)–Part4-5:Testingandmeasurementtechniques–SurgeimmunitytestIEC61000-4-5Windenergygenerationsystems-Part24:LightningprotectionIEC61400-24:2019114
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