2023学年完整公开课版Representation of electrical diagram 电气图规范

SpecificationforElectricalDiagram电气图规范《工程识图与电气CAD》EngineeringDrawingReadingAndElectricCADTeachingResourcesDatabaseofNationalVocationalEducationPowerSupplyTechnologyBilingualCourses课程负责人：苏晓兰陈忠Courseleader:SuXiaolanChenzhong目录

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CONTENTS01/图幅尺寸Sheetdimension02/图框线Diagramframeline03/图幅分区Drawingpartition04/标题栏Thetitlebar05/图线Lineofdiagram06/字体Thefont07/比例Thescale08/其他Else课程负责人：苏晓兰陈忠Courseleader:SuXiaolanChenzhongClicktoaddTitle图纸基本幅面的尺寸（mm）Thedimensionsofthebasicformatofthedrawing(mm)幅面代号Code841*1189594*841420*594297*420210*297B*Leca201010525A0A1A2A3A4注：B、L、e、c、a详见后文Note:seeb,l,e,calater1.Sheetdimension图幅尺寸SpecificationforElectricalDiagram电气图规范ClicktoaddTitleA159412611471168219822102252314861783208023786301051A45A44A33A34891A43420A2297A3210A484111890A0

必要时，可以按规定加长图纸的幅面。幅面的尺寸由基本幅面的短边成整数倍增加后得出。图中虚线为加长后的图纸幅面。Ifnecessary,theformatofthedrawingcanbeextendedaccordingtotheregulations.Thedimensionisobtainedbymultiplyingtheshortedgesofthebasicdrawingbyintegralmultiples.Thedottedlineinthedrawingisthelengtheneddrawingformat

绘制图样时,优先采用表中规定的图纸幅面尺寸（A）。Whendrawing,thesheetdimension(A)specifiedinthetableispreferred.1.Sheetdimension图幅尺寸SpecificationforElectricalDiagram电气图规范ClicktoaddTitle图框线有两种格式：一种是用于需要装订的图纸,另一种则用于不需要装订的图纸。Therearetwoformatsfordiagramframelines:onefordrawingsthatrequirebindingandtheotherfordrawingsthatdonotrequirebinding.

留有装订边图样的图框格式(1)

Frameformatwithboundedges留有装订边图样的图框格式(2)Frameformatwithboundedges图面由边框线、图框线、标题栏、会签栏组成。Thedrawingsurfaceiscomposedofborderline,diagramframeline,titlebarandcountersignbar2.Diagramframeline图框线DiagramframelineTitlebarDiagramframelineTitlebarPaperborderlinePaperborderlineThesurroundingThesurroundingSpecificationforElectricalDiagram电气图规范

不留装订边图样的图框格式(1)

Frameformatwithoutbindingedge(1)不留装订边图样的图框格式(2)Frameformatwithoutbindingedge(2)2.Diagramframeline图框线DiagramframelineTitlebarPaperborderlineThesurroundingDiagramframelineTitlebarThesurroundingPaperborderlineSpecificationforElectricalDiagram电气图规范

即将图纸相互垂直的两边各自加以等分，竖边方向用大写拉丁字母编号，横边方向用阿拉伯数字编号，编号的顺序从标题栏相对的左上角开始，分区数应为偶数，如下图。3.Sheetdimension图幅尺寸SpecificationforElectricalDiagram电气图规范Itistodividethetwosidesofthedrawingthatareperpendiculartoeachotherequally.Theverticalsideisnumberedwithcapitallatinletters,andthehorizontalsideisnumberedwitharabicnumerals.Thenumberingsequencestartsfromtheupperleftcornerofthetitlebar,andthenumberofpartitionsshouldbeeven,asshowninthefigurebelow.图幅分区后，相当于在图样上建立了一个坐标，电气图上的元件和连接线的位置可由此“坐标”唯一地确定下来了。Afterthedrawingispartitioned,itisequivalenttoestablishingacoordinateonthedrawing,andthepositionsofcomponentsandconnectinglinesontheelectricaldrawingcanbedeterminedbythis"coordinate"序号Sequencenumber元件名称Nameofcomponent元件符号Componentsymbol标记写法Wayofmarkwriting行号Rownumber列号Columnnumber区号Areanumber1继电器线圈RelaycoilKMB4B42继电器触点RelaycontactKMC2C23按钮ButtonSBB2B24电阻器ResistorRC4C43.Sheetdimension图幅尺寸SpecificationforElectricalDiagram电气图规范ClicktoaddTitle标题栏，用来反映设计名称、图号、张次、设计者等相关设计信息，位于图纸的右下角，其形式没有统一规定。Titlebar,usedtoreflectdesignname,drawingnumber,papernumber,designer,etcTherelevantdesigninformationislocatedinthelowerrightcornerofthedrawing,anditsformisnotuniform变电所平面布置图Substationfloorplan2004D-06-01审定Examine审核Examineandverify项目负责人Projectleader专业负责人Leader校核Check设计Design制图Drawing日期Date工程名称Projectname子项名称Subitemname

比例Scale图号中国电力工程东北设计研究院NortheastChinaElectricPowerEngineeringDesignandResearchInstitute阶段Phase专业Major********工程…project小区变电所工程Residentialsubstationproject1/300施工图Productiondrawing电力Electricity4.Titlebar标题栏DrawingnumberSpecificationforElectricalDiagram电气图规范标题栏参考格式TitlebarreferenceformatNameoforganizationProjectnameDrawingtitleDrawingnumberDesignprojectDesignphaseScaleSignatureDateDutyDesignDrawingCheckExamineAgelimitNumber…Total…ClicktoaddTitle

图线分为粗线和细线两种。粗线宽度(d)应根据图形的大小和复杂程度在0.5～2mm之间选择，细线的宽度约为d／2。图线宽度的推荐系列为：0.13，0.18，0.25，0.35，0.5，0.7，1，1.4，2mm。实际画图中，粗线一般取0.7mm或0.5mm。图线基本线型共有15种，下表为常用几种图线形式。Linesofdiagramaredividedintothicklinesandthinlines.Thewidthofthethickline(d)shouldbebetween0.5and2mm,dependingonthesizeandcomplexityofthedrawing,andthewidthofthethinlineshouldbeaboutD/2.Therecommendedlinewidthsare:0.13,0.18,0.25,0.35,0.5,0.7,1,1.4,2mm.Intheactualdrawing,thethicklineisgenerally0.7mmor0.5mm.Thereare15typesofbasiclinesofthediagram.Thefollowingtableshowssomecommonlyusedformsoftheline.5.Lineofdiagram图线SpecificationforElectricalDiagram电气图规范几种常用图线形式Severalcommonformsofdiagramline图线类型typeofdiagramline主要用途mainapplication粗实线heavyline可见轮廓线visibleoutline细实线fineline尺寸线、尺寸界线、剖面线、引出线dimensionline,dimensionboundaryline,sectionline,outgoingline细波浪线finewavyline断裂处的边界线、视图和剖视图的分界线Theboundarylineofbreakingpoint,boundarylineofviewandsectionview细双折线finedoublebrokenline断裂处的边界线boundarylineofbreakingpoint细虚线finedashline不可见轮廓线invisibleoutline细点画线finedash-dottedline轴线、对称中心线axis,symmetriccenterline粗点画线heavydash-dottedline有特殊要求的表面表示线Surfacerepresentinglineswithspecialrequirements细双点画线finetwodash-dottedline假想投影轮廓线、中断线imaginaryprojectionoutline,breakline5.Lineofdiagram图线SpecificationforElectricalDiagram电气图规范ClicktoaddTitle汉字应写成长仿宋体。图样中的字体书写必须做到：字体工整、笔划清楚、间隔均匀、排列整齐。Chinesecharactersshouldbewritteninlongfangsongti.Thewritingofthefontsinthedrawingmustbeneat,clearstrokes,evenlyspacedandarrangedneatly.字体高度（用h表示，单位为mm)的公称尺寸系列为1.8、2.5、3.5、5、7、10、14、20。汉字的高度h不应小于3.5mm，其字宽一般为(2/3)h。Thenominalsizeseriesoffontheights(Itisdenotedbyhandtheunitismm)are1.8,2.5,3.5,5,7,10,14,and20.TheheighthofChinesecharactershouldnotbelessthan3.5mm,anditscharacterwidthisgenerally(2/3)H字母和数字可写成斜体或直体，注意全图统一。斜体字字头向右倾斜，与水平基准线成75°。Lettersandnumberscanbewritteninitalicsorinstraightletters.Theitalicsareinclinedtotheright,75°fromthehorizontaldatum6.Thefont字体SpecificationforElectricalDiagram电气图规范Thefontisneat,thestrokeisclear,theintervaliseven,andthearrangementisneatClicktoaddTitle比例是指图中图形与其实物相应要素的线性尺寸之比。Scalereferstotheratioofthelineardimensionsofthefigureandthecorrespondingelementsinthedrawing.比例Scale

原值比例originalvaluescale1:1缩小比例Reduceinscale1:21:51:101:2×10n1:5×10n1:10×10n

1:1.5×10n1:2.5×10n1:3×10n1:4×10n1:6×10n放大比例Enlargeinscale2:15:11×10n:12×10n:15×10n:1

4:12.5:14×10n:12.5×10n:17.Thescale比例SpecificationforElectricalDiagram电气图规范ClicktoaddTitle

不论采用何种比例，图形中所标注的尺寸数字必须是物体的实际大小，与图形的比例无关。如下图所示。Nomatterwhatscaleisused,thesizenumbermarkedinthedrawingmustbetheactualsizeoftheobject.Itisindependentofthescaleofthedrawing.Asshowninthefigurebelow.不同比例的尺寸注法7.Thescale比例DimensionannotationmethodofdifferentscaleSpecificationforElectricalDiagram电气图规范01030204箭头和指引线Arrowsandguidelines围框Frame注释Annotation详图Detaileddiagram8.Else其他05尺寸标注DimensionmarkingSpecificationforElectricalDiagram电气图规范ClicktoaddTitle（1）箭头和指引线

Arrowsandguidelines箭头：有开口箭头（主要用于电气能量、电气信号的传递方向）和实心箭头（主要表示力、运动或可变性方向）。Arrows:thereareopenarrows(mainlyforelectricalenergy,electricalsignaltransmissiondirection)andsolidarrows(mainlytoindicatethedirectionofforce,movementorvariability).指引线：用于注释的对象，应为细实线，并在其末端加标记。Guideline:objectsusedforannotationsshouldbethinsolidlineswithamarkattheend8.Else其他OpenarrowSolidarrowApplicationexampleSpecificationforElectricalDiagram电气图规范ClicktoaddTitle（2）围框Frame作用：表示电气图中的的功能单元、项目组（电器组、继电器装置）。Function:representsthefunctionalunitandprojectgroup(electricalunit,relaydevice)intheelectricaldiagram.注意：围框用点划线表示，有规则的形状，不应与任何元件符号相交。Note:theframeisindicatedbyadottedline,aregularshape,andshouldnotintersectwithanysymbols.围框表明两个接触器的触点数量及作用Theframeindicatesthenumberandfunctionofthecontactsofthetwocontactors8.Else其他SpecificationforElectricalDiagram电气图规范ClicktoaddTitle（2）围框Frame用双点划线表示－B单元在功能上与－A单元有关，但不安装在该单元内。Adoubledottedlineindicatesthatthe-Bunitisfunctionallyrelatedtothe-Aunit,butisnotinstalledwithinit.用点划线表示－A单元内包含的元件类型及数量Dottedlinesindicatethetypeandnumberofcomponentscontainedin-Aunitl围框举例Exampleofframe8.Else其他SpecificationforElectricalDiagram电气图规范Notin-AClicktoaddTitle（3）注释Annotation作用Function:用来表达图形符号不便表达或表达不清楚的含义Usedtoexpresstheinconvenientorunclearmeaningofgraphicsymbols方式Method：①直接放在要说明的对象附近；②在所要说明的对象附近加标记，而将注释放在图中其它位置或另一页。(1)directlyplacedneartheobjecttobeexplained;②Placeamarkneartheobjecttobedescribed,andplaceannotationsomewhereelseinthediagramoronanotherpage.

（4）详图Detaileddiagram

作用Function：详图即用图形来注释，具体说就是把电气装置中某些零部件和连接点等结构、做法及安装工艺要求放大并详细表示出来。Detaileddiagramthatistousegraphicstoannotate.Specifically,itistoenlargeandshowthestructure,practiceandinstallationprocesssuchassomepartsandjointsoftheelectricaldeviceindetail.

8.Else其他SpecificationforElectricalDiagram电气图规范ClicktoaddTitle（5）尺寸标注

Dimensionmarking

8.Else其他尺寸线

dimensionline尺寸界限

dimensionlimit尺寸起止点dimens