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1、ANSIC12.9-2005RevisionofANSIC12.9-1987AmericanNationalStandardForTestSwitchesforTransformer-RatedMetersSecretariat:NationalElectricalManufacturersAssociationApprovedApril15,2005AmericanNationalStandardsInstitute,Inc.ANSIC12.9-2005NOTICEANDDISCLAIMERTheinformationinthispublicationwasco
2、nsideredtechnicallysoundbytheconsensusofpersonsengagedinthedevelopmentandapprovalofthedocumentatthetimeitwasdeveloped.Consensusdoesnotnecessarilymeanthatthereisunanimousagreementamongeverypersonparticipatinginthedevelopmentofthisdocument.NEMAstandardsandguidelinepublications,ofwhichth
3、edocumentcontainedhereinisone,aredevelopedthroughavoluntaryconsensusstandardsdevelopmentprocess.Thisprocessbringstogethervolunteersand/orseeksouttheviewsofpersonswhohaveaninterestinthetopiccoveredbythispublication.WhileNEMAadministerstheprocessandestablishesrulestopromotefairnessinthe
4、developmentofconsensus,itdoesnotwritethedocumentanditdoesnotindependentlytest,evaluate,orverifytheaccuracyorcompletenessofanyinformationorthesoundnessofanyjudgmentscontainedinitsstandardsandguidelinepublications.NEMAdisclaimsliabilityforanypersonalinjury,property,orotherdamagesofanyna
5、turewhatsoever,whetherspecial,indirect,consequential,orcompensatory,directlyorindirectlyresultingfromthepublication,useof,application,orrelianceonthisdocument.NEMAdisclaimsandmakesnoguarantyorwarranty,expressorimplied,astotheaccuracyorcompletenessofanyinformationpublishedherein,anddis
6、claimsandmakesnowarrantythattheinformationinthisdocumentwillfulfillanyofyourparticularpurposesorneeds.NEMAdoesnotundertaketoguaranteetheperformanceofanyindividualmanufacturerorseller’sproductsorservicesbyvirtueofthisstandardorguide.Inpublishingandmakingthisdocumentavailable,NEMAisnotu
7、ndertakingtorenderprofessionalorotherservicesfororonbehalfofanypersonorentity,norisNEMAundertakingtoperformanydutyowedbyanypersonorentitytosomeoneelse.Anyoneusingthisdocumentshouldrelyonhisorherownindependentjudgmentor,asappropriate,seektheadviceofacompetentprofessionalindeterminingth
8、eexer