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1、CommercialBuildingsAbstract:Aguideandgeneralreferenceonelectricaldesignforcommercialbuildingsisprovided.Itcoversloadcharacteristics;voltageconsiderations;powersourcesanddistributionapparatus;controllers;services,vaults,andelectricalequipmentrooms;wiringsystems;systemsprotectio
2、nandcoordination;lighting;electricspaceconditioning;transportation;communicationsystemsplanning;facilityautomation;expansion,modernization,andrehabilitation;specialrequirementsbyoccupancy;andelectricalenergymanagement.Althoughdirectedtothepowerorientedengineerwithlimitedcommer
3、cialbuildingexperience,itcanbeanaidtoallengineersresponsiblefortheelectricaldesignofcommercialbuildings.Thisrecommendedpracticeisnotintendedtobeacompletehandbook;however,itcandirecttheengineertotexts,periodicals,andreferencesforcommercialbuildingsandactasaguidethroughthemyriad
4、ofcodes,standards,andpracticespublishedbytheIEEE,otherprofessionalassociations,andgovernmentalbodies.Keywords:Commercialbuildings,electricpowersystems,loadcharacteristics1.Introduction1.1ScopeThisrecommendedpracticewillprobablybeofgreatestvaluetothepowerorientedengineerwithlim
5、itedcommercialbuildingexperience.Itcanalsobeanaidtoallengineersresponsiblefortheelectricaldesignofcommercialbuildings.However,itisnotintendedasareplacementforthemanyexcellentengineeringtextsandhandbookscommonlyinuse,norisitdetailedenoughtobeadesignmanual.Itshouldbeconsideredag
6、uideandgeneralreferenceonelectricaldesignforcommercialbuildings.1.2CommercialBuildingsTheterm“commercial,residential,andinstitutionalbuildings”asusedinthischapter,encompassesallbuildingsotherthanindustrialbuildingsandprivatedwellings.Itincludesofficeandapartmentbuildings,hotel
7、s,schools,andchurches,marine,air,railway,andbusterminals,departmentstores,retailshops,governmentalbuildings,hospitals,nursinghomes,mentalandcorrectionalinstitutions,theaters,sportsarenas,andotherbuildingsservingthepublicdirectly.Buildings,orpartsofbuildings,withinindustrialcom
8、plexes,whichareusedasofficesormedicalfacilitiesorforsimilarno
