July2012Juillet2012IEC60947-4-2(Thirdedition–2011)Low-voltageswitchgearandcontrolgear–Part4-2:Contactorsandmotor-starters–ACsemiconductormotorcontrollersandstartersCEI60947-4-2(Troisièmeédition–2011)Appareillageàbassetension–Partie4-2:Contacteursetdémarreursdemoteurs–GradateursetdémarreursàsemiconducteursdemoteursàcourantalternatifCORRIGENDUM1Table19–Terminaldisturbancevoltagelimitsforconductedradio-frequencyemissionReplace,inthefirstrowofthisexistingtable“currents”by“power”,asfollows:Tableau19–LimitesdeperturbationentensionsurlesbornespourlesémissionsconduitesàfréquencesradioélectriquesRemplacer,danslapremièrelignedutableauexistant“courants”par“puissance”,commesuit:Table19–Terminaldisturbancevoltagelimitsforconductedradio-frequencyemissionFrequencyrangeMHzEnvironmentAaratedinputpower≤20kVAEnvironmentAa,bratedinputpower>20kVAEnvironmentBaQuasi-peakdB(µV)AveragedB(µV)Quasi-peakdB(µV)AveragedB(µV)Quasi-peakdB(µV)AveragedB(µV)0,15to0,579661009066to56(decreasewithlogoffrequency)56to46(decreasewithlogoffrequency)0,5to57360867656465to30736090to73(decreasewithlogoffrequency)80to60(decreasewithlogoffrequency)6050aDefinedbyIEC60947-1.bTheselimitsapplytoequipmentwitharatedinputpower>20kVA.Themanufacturerand/orsuppliershallprovideinformationoninstallationmeasuresthatcanbeusedtoreduceemissionsfromtheinstalledequipment.Inparticular,itshallbeindicatedthatthisequipmentisintendedtobepowerdedadedicatedpowertransformerorgeneratedandnotLVoverheadpowerlines.LimitsinaccordancewithCISPR11,Group1.CopyrightedmateriallicensedtoBRDemobyThomsonReuters(Scientific),Inc.,subscriptions.techstreet.com,downloadedonNov-28-2014byJamesMadison.Nofurtherreproductionordistributionispermitted.UncontrolledwhenprinteJuly2012Juillet2012Tableau19–LimitesdeperturbationentensionsurlesbornespourlesémissionsconduitesàfréquencesradioélectriquesPlagedefréquencesMHzEnvironnementAapuissanced’entréeassignée≤20kVAEnvironnementAa,bpuissanced’entréeassignée>20kVAEnviron...
