ANSI C78.42-2004 电灯 高压钠灯

ANSIC78.42-2004RevisionofANSIC78.42-2001AmericanNationalStandardApproved:December30,2004Secretariat:ANSLG–NationalElectricalManufacturersAssociationforelectriclamps:High-PressureSodiumLampsCopyright©2004byAmericanNationalStandardLightingGroup–NEMAANSIC78.42-2004Copyright©2004byAmericanNationalStandardLightingGroup–NEMA2AmericanNationalStandardApprovalofanAmericanNationalStandardrequiresverificationbyANSIthattherequirementsfordueprocess,consensus,andothercriteriaforapprovalhavebeenmetbythestandardsdeveloper.AnAmericanNationalStandardimpliesaconsensusofthosesubstantiallyconcernedwithitsscopeandprovisions.Consensusisestablishedwhen,inthejudgmentoftheANSIBoardofStandardsReview,substantialagreementhasbeenreachedbydirectlyandmateriallyaffectedinterests.Substantialagreementmeansmuchmorethanasimplemajority,butnotnecessarilyunanimity.Consensusrequiresthatallviewsandobjectionsbeconsidered,andthataconcertedeffortbemadetowardtheirresolution.TheexistenceofanAmericanNationalStandarddoesnotinanyrespectprecludeanyone,whethers/hehasapprovedthestandardornot,frommanufacturing,marketing,purchasing,orusingproducts,processes,orproceduresnotconformingtothestandards.Itisintendedasaguidetoaidthemanufacturer,theconsumer,andthegeneralpublic.TheAmericanNationalStandardsInstitutedoesnotdevelopstandardsandwillinnocircumstancesgiveaninterpretationofanyAmericanNationalStandard.Moreover,nopersonshallhavetherightorauthoritytoissueaninterpretationofanAmericanNationalStandardinthenameoftheAmericanNationalStandardsInstitute.RequestsforinterpretationsshouldbeaddressedtotheCommitteeSecretariatreferredtoonthetitlepage.CAUTIONNOTICE:ThisAmericanNationalStandardmayberevisedorwithdrawnatanytime.TheproceduresoftheAmericanNationalStandardsInstituterequirethatactionbetakenperiodicallytoreaffirm,revise,orwithdrawthisstandard.PurchasersofAmericanNationalStandardsmayreceivecurrentinformationonallstandardsbycallingorwritingtheAmericanNationalStandardsInstitute.Printedanddistributedby:InformationHandlingServices/GlobalEngineeringDocuments15InvernessWayEast,Englewood,CO80112-5776UnderContractwithNationalElectricalManufacturersAssociationCopyright©2004byAmericanNationalStandardLightingGroupInAffiliationwithNationalElectricalManufacturersAssociationAllrightsreserved.Nopartofthispublicationmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutpriorwrittenpermissionofthepublisher.PrintedintheUnitedStatesofAmericaTheStandardisdownloadedfrom©2004byAmericanNationalStandardLightingGroup–NEMA3ContentsOrganizationofthisstandard....................................................................................................................5I.Generalrequirementsandinformation.................................................................................................71.Scope...............................................................................................................................................72.Normativereferences....................................................................................................................73.Definitions.......................................................................................................................................74.Methodsofmeasurement..............................................................................................................75.Lampspecifications.......................................................................................................................85.1Lampdesignationsanddescriptions.........................................................................................85.2Lampphysicalandsafetycharacteristics..................................................................................85.3Referenceballastrequirements.................................................................................................95.4Operatingrequirementsat100hours........................................................................................95.5Lampstartingrequirements.......................................................................................................95.6Warm-uptime..........................................................................................................................106.Informationforballastdesign.....................................................................................................106.1Startingvoltagerequirements..................................................................................................106.2Lampstartingcurrent...............................................................................................................106.3Currentofftime........................................................................................................................106.4Currentcrestfactor..................................................................................................................106.5Maximumpeakvol