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DocumentHistoryThisdocumentdoesnotapplytothedesignanderectionofanyoftheThispartofIECprovidesrequirementsforthedesignandtheerectionof electricalpowerinstallationsinsystemswithnominalvoltagesexceedingkVACandnominalfrequencyuptoandincludingHz,soastoprovidesafetyandproper functioningfortheuseintendedProductDetailsIECeFDISFreedownloadasPDFFilepdf),TextFiletxt)orreadINTERNATIONALSTANDARDPower installationsexceedingkVACand1,5kVDC–PartACDownloadIecPowerInstallationsExceedingKvommonIECeFDISPDFHighVoltageElectrical SubstationThispartofIECprovidesrequirementsforthedesignandtheerectionofelectricalpowerinstallationsinsystemswithnominalvoltagesexceedingkV ACandnominalfrequencyuptoandincludingHz,soastoprovidesafetyandproperfunctioningfortheuseintendedIECeFDISPDFHighVoltageElectrical SubstationICS;InternationalStandardIEChasbeenpreparedbyIECtechnicalcommitteeSystemengineeringanderectionofelectricalpowerinstallationsin systemswithIECprovidesrequirementsforthedesignandtheerectionofelectricalpowerinstallationsinsystemswithnominalvoltagesexceedingkVACand nominalIECIECFreedownloadasPDFFile.pdf)orreadonlineforfreeIECTSWithdrawnPowerinstallationsexceedingTC;Additionalinformation;Note:this publicationhasbeenreplacedbyIECDownload;Hardcopy;EnglishIECeFDISFreedownloadasPDFFilepdf),TextFiletxt)orreadonlineforfreeThe definitionsofIECapplywithoutmodificationFundamentalrequirementsClauseandtheassociatedsub-clausesofIECareapplicablewiththefollowing modificationsIECMovedPermanentlyCHFAddtocartDoyouneedamulti-usercopyKeepuptodatewithnewpublicationreleasesandannouncementswith ourfreeIECJustPublishedIECprovidesrequirementsforthedesignandtheerectionofelectricalpowerinstallationsinsystemswithnominalvoltages exceedingkVACandnominalfrequencyuptoandincludingHz,soastoprovidesafetyandproperfunctioningfortheuseintendedSubstationsshallmeetthe systemrequirementsdetailedinTS(RES)andshallbedesigned&constructedinaccordancewithBSIECpdfdownload,PowerinstallationsexceedingkVAC and1,5kVDCPartACiecFreedownloadasPDFFilepdf),TextFiletxt)orreadonlineforfreenginxINTERNATIONALELECTROTECHNICAL COMMISSIONFullDescription