To:CurrentHoldersofANSIC12.4-1984From:NEMACommunicationsDepartmentDate:May21,2003Subject:ReaffirmationofANSIC12.4-1984TheANSIBoardofStandardsReviewreaffirmedANSIC12.4-1984,Registers,MechanicalDemand.Thenewdesignatorforthisstandardis:ANSIC12.4-1984(R2002),Registers,MechanicalDemand.Pleaseinserttheattachedrevisedtitlepageintoyourstandard.ANSIC12.4-1984(R2002)AmericanNationalStandardRegisters—MechanicalDemandSecretariat:NationalElectricalManufacturersAssociationApprovedasanAmericanNationalStandardsInstitute,Inc.NOTICEANDDISCLAIMERTheinformationinthispublicationwasconsideredtechnicallysoundbytheconsensusofpersonsengagedinthedevelopmentandapprovalofthedocumentatthetimeitwasdeveloped.Consensusdoesnotnecessarilymeanthatthereisunanimousagreementamongeverypersonparticipatinginthedevelopmentofthisdocument.TheNationalElectricalManufacturersAssociation(NEMA)standardsandguidelinepublications,ofwhichthedocumentcontainedhereinisone,aredevelopedthroughavoluntaryconsensusstandardsdevelopmentprocess.Thisprocessbringstogethervolunteersand/orseeksouttheviewsofpersonswhohaveaninterestinthetopiccoveredbythispublication.WhileNEMAadministerstheprocessandestablishesrulestopromotefairnessinthedevelopmentofconsensus,itdoesnotwritethedocumentanditdoesnotindependentlytest,evaluate,orverifytheaccuracyorcompletenessofanyinformationorthesoundnessofanyjudgmentscontainedinitsstandardsandguidelinepublications.NEMAdisclaimsliabilityforanypersonalinjury,property,orotherdamagesofanynaturewhatsoever,whetherspecial,indirect,consequential,orcompensatory,directlyorindirectlyresultingfromthepublication,useof,application,orrelianceonthisdocument.NEMAdisclaimsandmakesnoguarantyorwarranty,expressorimplied,astotheaccuracyorcompletenessofanyinformationpublishedherein,anddisclaimsandmakesnowarrantythattheinformationinthisdocumentwillfulfillanyofyourparticularpurposesorneeds.NEMAdoesnotundertaketoguaranteetheperformanceofanyindividualmanufacturerorseller’sproductsorservicesbyvirtueofthisstandardorguide.Inpublishingandmakingthisdocumentavailable,NEMAisnotundertakingtorenderprofessionalorotherservicesfororonbehalfofanypersonorentity,norisNEMAundertakingtoperformanydutyowedbyanypersonorentitytosomeoneelse.Anyoneusingthisdocumentshouldrelyonhisorherownindependentjudgmentor,asappropriate,seektheadviceofacompetentprofessionalindeterminingtheexerciseofreasonablecareinanygivencircumstances.Informationandotherstandardsonthetopiccoveredbythispublicationmaybeavailablefromothersources,whichtheusermaywishtoconsultforadditionalviewsorinformationnotcoveredbythispublication.NEMAhasnopower,nordoesitundertaketopoliceorenforcecompliancewiththecontentsofthisdocument.NEMAdoesnotcertify,test,orinspectproducts,designs,orinstallationsforsafetyorhealthpurposes.Anycertificationorotherstatementofcompliancewithanyhealthorsafety–relatedinformationinthisdocumentshallnotbeattributabletoNEMAandissolelytheresponsibilityofthecertifierormakerofthestatement.--```,,`,,,,,`,`,`,,````,``,`,-`-`,,`,,`,`,,`---