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1、CommercialBuildingsAbstract:Aguideandgeneralreferenceonelectricaldesignforcommercialbuildingsisprovided.Itcoversloadcharacteristics;voltageconsiderations;powersourcesanddistributionapparatus;controllers;services,vaults,andelectricalequipmentrooms;wiringsystems;systemsprotectionandcoord
2、ination;lighting;electricspaceconditioning;transportation;communicationsystemsplanning;facilityautomation;expansion,modernization,andrehabilitation;specialrequirementsbyoccupancy;andelectricalenergymanagement.Althoughdirectedtothepowerorientedengineerwithlimitedcommercialbuildingexperi
3、ence,itcanbeanaidtoallengineersresponsiblefortheelectricaldesignofcommercialbuildings.Thisrecommendedpracticeisnotintendedtobeacompletehandbook;however,itcandirecttheengineertotexts,periodicals,andreferencesforcommercialbuildingsandactasaguidethroughthemyriadofcodes,standards,andpracti
4、cespublishedbytheIEEE,otherprofessionalassociations,andgovernmentalbodies.Keywords:Commercialbuildings,electricpowersystems,loadcharacteristics1.Introduction1.1ScopeThisrecommendedpracticewillprobablybeofgreatestvaluetothepowerorientedengineerwithlimitedcommercialbuildingexperience.Itc
5、analsobeanaidtoallengineersresponsiblefortheelectricaldesignofcommercialbuildings.However,itisnotintendedasareplacementforthemanyexcellentengineeringtextsandhandbookscommonlyinuse,norisitdetailedenoughtobeadesignmanual.Itshouldbeconsideredaguideandgeneralreferenceonelectricaldesignforc
6、ommercialbuildings.1.2CommercialBuildingsTheterm“commercial,residential,andinstitutionalbuildings”asusedinthischapter,encompassesallbuildingsotherthanindustrialbuildingsandprivatedwellings.Itincludesofficeandapartmentbuildings,hotels,schools,andchurches,marine,air,railway,andbustermina
7、ls,departmentstores,retailshops,governmentalbuildings,hospitals,nursinghomes,mentalandcorrectionalinstitutions,theaters,sportsarenas,andotherbuildingsservingthepublicdirectly.Buildings,orpartsofbuildings,withinindustrialcomplexes,whichareusedasofficesormedicalfacilitiesorforsimilarno
