ElectricalGraphicSymbol電氣圖形符號《工程識圖與電氣CAD》EngineeringDrawingReadingAndElectricCADTeachingResourcesDatabaseofNationalVocationalEducationPowerSupplyTechnologyBilingualCourses課程負責人：蘇曉蘭陳忠Courseleader:SuXiaolanChenzhong目錄

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CONTENTS01/圖形符號的構成Thecompositionofgraphicsymbols02/一般符號Generalsymbol03/符號要素Symbolicelements04/限定符號Qualifyingsymbol05/圖形符號的種類Typesofgraphicsymbols06/注意事項Precautions課程負責人：蘇曉蘭陳忠Courseleader:SuXiaolanChenzhongElectricalGraphicSymbol電氣圖形符號12圖形符號的構成Thecompositionofgraphicsymbols圖形符號的種類Typesofgraphicsymbols04-框形符號Boxsymbols1.Thecompositionofgraphicsymbols圖形符號的構成03-限定符號Qualifyingsymbol01-一般符號Generalsymbol02-符號要素SymbolicelementsElectricalGraphicSymbol電氣圖形符號1電氣圖形符號ElectricalGraphicSymbol由一般符號、符號要素、限定符號、方框符號組成。Itiscomposedofgeneralsymbol,symbolelement,qualifyingsymbolandboxsymbol.ElectricalGraphicSymbol電氣圖形符號1.Thecompositionofgraphicsymbols圖形符號的構成1ClicktoaddTitle用以表示一類產品和此類產品特征的一種通常很簡單的符號。Itisausuallysimplesymbolusedtodenoteaclassofproductsandthecharacteristicsofsuchproducts.12.Generalsymbol

一般符號ElectricalGraphicSymbol電氣圖形符號Switch(mechanical)electricalgraphicsymbol1ClicktoaddTitle是一種具有確定意義的簡單圖形，不能單獨使用。它必須同其它圖形組合后才能構成一個設備或概念的完整符號。Itisasimple,defininggraphicthatcannotbeusedalone.Itmustbecombinedwithothergraphicstoformacompletesymbolofadeviceorconcept.3.Symbolicelements

符號要素符號要素Symbolicelements真空二極管真空三極管ElectricalGraphicSymbol電氣圖形符號shellandtubecathodeanodegridelectrodevacuumdiodevacuumtriode1ClicktoaddTitle1用以提供附加信息的一種加在其它符號上的符號，通常它不能單獨使用。Itisasymbolthatisusedtoprovideadditionalinformationandisaddedtoothersymbols,usuallynotusedalone.系統圖中的整流器符號Therectifiersymbolinthesystemdiagram4.Qualifyingsymbol

限定符號ElectricalGraphicSymbol電氣圖形符號1ClicktoaddTitle1用以表示元件、設備等的組合及其功能的一種簡單圖形符號。既不給出元件、設備的細節，也不考慮所有連接。Itisasimplegraphicsymbolusedtorepresentthecombinationofcomponents,equipment,etc.andtheirfunctions.Thedetailsofthecomponentsandequipmentarenotgiven,norareallconnectionsconsidered.整流器的框形符號Theboxsymbolofarectifier5.Boxsymbols

框形符號ElectricalGraphicSymbol電氣圖形符號1ClicktoaddTitle導線和連接器件Wiresandconnectingdevices無源元件Passivecomponent半導體管和電子管Semiconductortubesandelectronictubes電能的發生和轉換Occurrenceandconversionofelectricalenergy開關、控制和保護裝置Switching,controlandprotectiondevices測量儀表、燈和信號器件Measuringinstruments,lampsandsignaldevices電信交換和外圍設備Telecommunicationsswitchingandperipherals電信傳輸Telecommunicationstransmission電力、照明和電信布置Electrical,lightingandtelecommunicationsarrangements二進制邏輯單元Binarylogicunit模擬單元燈符號Simulatetheunitlightsymbol6.Typesofgraphicsymbols

圖形符號的種類圖形符號的分類，主要有11類Thisistheclassificationofgraphicsymbols,thereare11mainclassesElectricalGraphicSymbol電氣圖形符號ClicktoaddTitle常見電氣圖形符號，如表所示。Commonelectricalgraphicsymbols,asshowninthetable.ElectricalGraphicSymbol電氣圖形符號6.Typesofgraphicsymbols

圖形符號的種類圖片翻譯見下頁DC(directcurrent)AC(alternatingcurrent)HeatingeffectGroundinggeneralsymbolIsoelectriclevelTerminal(Oryoucoulddrawitasaroundblackdot)Terminalblock(youcanaddthemarkofterminal)ConnectionofwiresConnectionof

multiwireOutlet(innerhole)

oronepoleofoutletPlug(convexhead)oronepoleofplugPlugandoutlet(convexheadandoutlet)ResistorCapacitorGeneralsymbolofmotorstarterRelaydiagramThermalrelaydrivedeviceSPSTNOSPSTNCSPDT(Breakandthenclosetransfercontacts)HandoperatedswitchNormallyopenbuttonNormallyclosedbuttonSPSTNCofthermalrelayCircuitinterrupterRangeswitchTwo-waydisconnectingswitchwithanintermediatedisconnectingpositionStar-trianglestarterElectricalGraphicSymbol電氣圖形符號AlternatorSCIM(3-phasesquirrel-cageinductionmotor)Two-circuittransformerThree-windingtransformerCT(currenttransformer)PT(potentialtransformer)ElectricreactorArresterFuseSparkgapWire/Cable/BusbarFlexiblewireLoadswitchNPNtypesemiconductortriodeVoltmeterAmperemeterPW/PPAPR/PPRPower-factorindicatorPF/FrequencymeterBuzzerAlarmapparatusDiodeBidirectionaldiodeLightemittingdiodePNPsemiconductortriodeElectricalGraphicSymbol電氣圖形符號圖形符號應按無電壓、無外力作用時的原始狀態繪制。Graphicsymbolsshouldbedrawnintheiroriginalstatewhenthereisnovoltageandnoexternalforces.17.Precautions

注意事項ElectricalGraphicSymbol電氣圖形符號2ElectricalGraphicSymbol電氣圖形符號7.Precautions

注意事項圖形符號可根據圖面布置的需要縮小或放大，但各個符號之間及符號本身的比例應保持不變，同一張圖紙上的圖形符號的大小應一致，線條的粗細應一致。Graphicsymbolscanbereducedorenlargedaccordingtotheneedsofthelayoutofthesurface,buttheproportionsbetweeneachsymbolandthesymbolitselfshouldremainthesame,onthesamesheetofpaper,thesizeofthegraphicsymbolsshouldbeconsistent,thethicknessofthelinesshouldbeconsistent.3ElectricalGraphicSymbol電氣圖形符號7.Precautions

注意事項圖形符號的方位不是強制的，在不改變符號含義的前提下，可根據圖面布置的需要旋轉或成鏡像放置，但文字和指示方向不得倒置。Thepositionofthegraphicsymbolisnotmandatory.Underthepremiseofnotchangingthemeaningofthesymbol,accordingtothe