IEC_61439-4-2012.pdfVIP免费

DRAFTSOUTHAFRICANSTANDARD(DSS):PUBLICENQUIRYSTAGEFORINTERNATIONALSTANDARDADOPTIONDocumentnumberSC67B/SANS61439-4/3ReferenceSANS61439-4Dateofcirculation07May2013Closingdate06June2013Numberandtitle:SANS61439-4,Low-voltageswitchgearandcontrolgearassemblies-Part4:Particularrequirementsforassembliesforconstructionsites(ACS)Remarks:PLEASENOTE:Thetechnicalcommittee,SABSSC67B.............,hasreachedconsensusthatthisinternationalstandardbeadoptedasaSouthAfricanstandard,andthatnotechnicaloreditorialchangesbemadetothetext.Itisnowmadeavailablebywayofpublicenquirytoallinterestedandaffectedpartiesforpubliccommentontheproposaltoadopt,andtothetechnicalcommitteeforrecordpurposes.Ifyoudisagreewiththedecisiontoadopt,pleasesubmityourmotivatedobjectionbytheindicatedclosingdate,eitherbymail,orbyfax,orbye-mailtoSABSStandardsDivisionAttention:ComplianceandDevelopmentdepartmentPrivateBagX191Pretoria0001FaxNo.:(012)344-1568(forattention:dsscomments)E-mail:dsscomments@sabs.co.zaForpracticalimplementationinSouthAfrica,itisnormallythecasethatinternationalstandardsareadoptedunchanged;wheretechnicalmistakesarediscoveredinthesourcedocument,thenormalpracticewouldbefortheStandardsDivisiontoreferthesetotheissuingorganizationforrectification.THISDOCUMENTISADRAFTCIRCULATEDFORPUBLICCOMMENT.ITMAYNOTBEREFERREDTOASASOUTHAFRICANSTANDARDUNTILPUBLISHEDASSUCH.INADDITIONTOTHEIREVALUATIONASBEINGACCEPTABLEFORINDUSTRIAL,TECHNOLOGICAL,COMMERCIALANDUSERPURPOSES,DRAFTSOUTHAFRICANSTANDARDSMAYONOCCASIONHAVETOBECONSIDEREDINTHELIGHTOFTHEIRPOTENTIALTOBECOMESTANDARDSTOWHICHREFERENCEMAYBEMADEINLAW.AZ96.10A2013/03/14sabsptaISBN978-0-626-SANS61439-4:2013Edition1IEC61439-4:2012Edition1SOUTHAFRICANNATIONALSTANDARDLow-voltageswitchgearandcontrolgearassembliesPart4:Particularrequirementsforassembliesforconstructionsites(ACS)ThisnationalstandardistheidenticalimplementationofIEC61439-4:2012andisadoptedwiththepermissionoftheInternationalElectrotechnicalCommission.WARNING—CanonlybeusedinconjunctionwithSANS61439-1.PublishedbyS...