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1、UTILITYVEGETATIONMANAGEMENTFINALREPORTMARCH2004FEDERALENERGYREGULATORYCOMMISSIONUNITEDSTATESGOVERNMENTCOMMISSIONEDTOSUPPORTTHEFEDERALINVESTIGATIONOFTHEAUGUST14,2003NORTHEASTBLACKOUTCNUtilityConsulting,LLCContact:RobertNovembriPhone:415.897.8883Email:rnovembri@cnutilit
2、y.comContract:FERC-03AL-30574THISREPORTWASPREPAREDBYCNUTILITYCONSULTING,LLCPRINCIPALAUTHORS:StephenR.CieslewiczRobertR.NovembriCONTRIBUTINGPROFESSIONALS:WilliamS.GrayJr.,P.E.Dr.DavidWood,ProfessorEmeritus,UCBerkeleyEDITOR:MaryF.BurnsPROJECTMANAGERS:SaeedFarrokhpay,FER
3、CAlisonSilverstein,FERCGaryNakarado,FERCTheprincipalauthorsofthisreporthaveover50combinedyearsofexperienceindealingwithallmattersrelatedtoUVMprograms,industrypractices,laws,andstandards.CNUtilityConsulting,LLChasperformedindustryassessmentsofUVMlawsandregulations,andh
4、asbeendirectlyinvolvedwiththepromulgationanddevelopmentofvariousindustrystandards.Mostrecently,CNUCcompletedwhatisconsideredtobethelargestandmostcomprehensiveUVMbenchmarkingstudyevercompletedintheindustry.Thiscomprehensivestudyincludedtheactiveparticipationof55utility
5、companies(largeandsmall)inNorthAmerica,andcoveredthefullgamutofUVM-relatedsubjects.UTILITYVEGETATIONMANAGEMENTFINALREPORTCONTENTSI.EXECUTIVESUMMARY1II.INTRODUCTION5III.BACKGROUND6ThePurposeofUVM:WhenTreesandPowerLinesConflict6IntroductiontotheUVMIndustryandPrograms8Tr
6、ansmissionandDistribution(T&D)UVMActivities8CurrentRequirementsforUVMWork9ImpedimentstoCompletingRequiredUVMWork–CompetingInterests15TheUrgencyoftheWork16TheInfluenceofIndividualPropertyOwners18TransmissionRight-of-WayMaintenance19PrecipitationandTreeGrowth23UVMFundin
7、gandWorkManagement24IV.FIELDINVESTIGATION26thFieldReviewsRelatedtotheAugust14Outage26FaultChronology,ObservationsatFieldSitesandComments28V.UVMPROGRAMASSESSMENTS38AmericanElectricPower40FirstEnergy46Cinergy52DetailedUVMResponses57VI.RECOMMENDATIONS67GeneralIndustryRec
8、ommendations67RecommendationforOversightandEnforcementofUVMActivities68VII.BESTMANAGEMENTPRACTICES70Background70BestManageme
