线路标准施工Ⅱ屏蔽电缆修理0

线路标准施工Ⅱ屏蔽电缆修理0屏蔽电缆的修缮〔屏蔽网〕20-10-13导线与电缆的修缮Repairofelectricalwireandcable目录Contents章节Paragraph页码Page1.通用数据GeneralData1A.导线与电缆所适用的修缮情形1ApplicableRepairConditionsforWireandCableB.导线与电缆修缮的普通情形2GeneralConditionsfortheRepairofWireandCableC.适航限制要求3AirworthinessLimitationsD.修缮所需部件与资料选择的普通情形4GeneralConditionsfortheSelectionofPartsandMaterialsforaRepairE.有拼接收导线与电缆修缮时的普通情形4GeneralConditionsfortheRepairofWireandCablewithaSpliceF.拼接组件修缮的适用情形y6ApplicableConditionsfortheRepairofaSpliceAssemblG.所需资料6NecessaryMaterials2.导线与电缆的损伤及其修缮情形9WireandcabledamageandrepairconditionsA.非屏蔽导线9UnshieldedWireB.非屏蔽电缆10UnshieldedcableC.屏蔽导线12ShieldedwireD.屏蔽导线—两层屏蔽网相邻14ShieldedWire-TwoAdjacentShieldsE.屏蔽导线—两层屏蔽网不相邻16ShieldedWire-TwoShieldsThatAreNotAdjacentF.屏蔽电缆19ShieldedcableG.屏蔽电缆—两层屏蔽网相邻21ShieldedCable-TwoAdjacentShieldsH.屏蔽电缆—两层屏蔽网不相邻23ShieldedCable-TwoShieldsThatAreNotAdjacentI.带有非金属编织网的导线或电缆25WireorCableWithaNon-MetallicBraidJ.铝质导线25AluminumWireK.铜质电源馈线27CopperPowerFeederWireL.跳线组件的跨接与接地28BondandGroundJumperAssemblyM.同轴电缆29CoaxcableN.阻燃导线30FireResistantWireO.扁平线芯电缆组件32P.ARINC629S280W502-()衔接电缆33Q.ARINC629S280W651-()数据总线电缆组件33R.从屏蔽底线中抽出屏蔽网35S.热电偶导线36T.发起机导线束中的导线与电缆37U.燃油系统导线37V.装置于油箱中的燃油指示系统导线与电缆37W.装置于油箱外的燃油指示系统导线与电缆39X.过热或电弧损伤的导线423.导线与电缆绝缘层的修缮42A.导线主绝缘层的修缮42B.电缆外防护层的修缮45C.主绝缘层与外防护层上的堆叠缠绕胶带破损处的修缮46D.电缆中导线主绝缘层的修缮47E.非金属编织网的修缮49F.拼接组件绝缘层的修缮504.非屏蔽导线与非屏蔽电缆的拼接修缮51A.导线的修缮51B.电缆的修缮515.屏蔽导线与屏蔽电缆的拼接修缮52A.屏蔽导线的拼接修缮52B.屏蔽导线的拼接修缮——两层屏蔽网相邻52C.燃油蒸汽区域屏蔽导线的拼接修缮——两层圆芯屏蔽网不相邻53D.屏蔽导线的拼接修缮——两层圆芯屏蔽网不相邻57E.屏蔽电缆的拼接修缮61F.屏蔽电缆的拼接修缮——两层屏蔽网相邻62G.燃油蒸汽区域屏蔽电缆的拼接修缮——两层圆芯屏蔽网不相邻62H.屏蔽电缆的拼接修缮——两层圆芯屏蔽网不相邻676.屏蔽导线与屏蔽电缆的屏蔽网修缮72A.封严的屏蔽网拼接构型选择72B.高温焊锡管的选择74C.屏蔽网修缮——胶带与扎线74D.屏蔽网修缮——焊接屏蔽网拼接收76E.屏蔽网修缮——焊锡管、屏蔽资料、胶带与热缩管〔屏蔽网不后翻〕78F.屏蔽网修缮——焊锡管、屏蔽资料、胶带与扎线〔屏蔽网不后翻〕82G.屏蔽网修缮——焊锡管、屏蔽资料、胶带与热缩管〔屏蔽网后翻〕85H.屏蔽网修缮——焊锡管、屏蔽资料、胶带与扎线〔屏蔽网后翻〕88I.屏蔽网修缮——金属环、屏蔽资料、胶带与热缩管92J.屏蔽网修缮——金属环、屏蔽资料、胶带与扎线95K.屏蔽网修缮——屏蔽线夹、屏蔽资料、胶带与热缩管98I.屏蔽网修缮——屏蔽线夹、屏蔽资料、胶带与扎线1027.同轴电缆的修缮106A.同轴电缆的屏蔽网修缮106B.同轴电缆的拼接修缮107C.添加一段新同轴电缆的拼接修缮1088.防波地线的修缮109A.抽线法防波地线的修缮1099.阻燃导线的修缮111A.阻燃导线的绝缘层修缮111B.非屏蔽阻燃导线的拼接修缮11310.热电偶导线的拼接修缮116A.镍铬热电偶导线的拼接修缮11611.燃油油量指示系统电缆的修缮118A.延伸至油箱外的高阻抗电缆的防护层修缮118B.延伸至油箱外的高阻抗电缆的拼接修缮11812.热风枪121A.件号与描画121B.热风枪的操作12220-10-13/2.FShieldedCable屏蔽电缆的修缮Fortheconditionsthatareapplicabletothedatainthisparagraph,refertoParagraph1.A.Repairisnecessarywhenthesetypesofdamageoccur:_Damagetotheconductor;refertoParagraph5.E._Damagetotheprimaryinsulation;refertoParagraph5.E._Damagetotheshieldismorethan1inchinlengthormorethan25percentofthecircumferenceoftheshield,andneartheendofthecable;refertoParagraph6.A._Damagetotheshieldismorethan1inchinlengthormorethan25percentofthecircumferenceoftheshield;refertoParagraph5.E._Damagetotheshieldislessthan1inchinlengthandlessthan25percentofthecircumferenceoftheshield;refertoParagraph6.C._Damagethatgoesthroughthejacket,buttheshieldhasnodamage;refertoParagraph3.B._Damagethatgoesintothejacket;refertoParagraph3.B._Thebondbetweentheoverlapsofthetapeofajacketisbrokenforalengthmorethan50percentofthediameterofthewire;refertoFigure30andParagraph3.C._Damagethatgoesintotheinsulationoftheshieldspliceassembly,buttheshieldhasnodamage;refertoFigure31andParagraph3.F.RefertoFigure29.Figure29UNSERVICEABLEJACKETANDSHIELDDAMAGEFigure30UNSERVICEABLEBROKENBONDSFigure31UNSERVICEABLEDAMAGEOFTHEINSULATIONOFASHIELDSPLICEASSEMBLYRepairisnotnecessarywhenthesetypesofdamageoccur:_Afoldinthejacketortheprimaryinsulationatabend_Asmallscratchonthesurfaceofthejacketortheprimaryinsulation_Abrasionthatmakesthesurfaceofthejacketortheprimaryinsulationrough_Thebondbetweentheoverlapsofthetapeofthejacketisbrokenforalengththatislessthan50percentofthediameterofthewire.RefertoFigure32andFigure33.Figure32SERVICEABLESCRATCHES,FOLDS,ANDABRASIONFigure33SERVICEABLEBROKENBONDS20-10-13/6.REPAIROFTHESHIELDOFASHIELDEDWIREANDASHIELDEDCABLE20-10-13/6.A.SelectionofaSealedShieldSpliceConfigurationReferto:_Paragraph2.forthedamageandrepairconditionsoftheapplicableshieldedwireorshieldedcable_Paragraph1.E.fortheapplicableconditionsfortherepairofwireandcablewithasplice.Table13SEALEDSHIELDSPLICECONFIGURATIONS20-10-13/6.B.SelectionofaSolderSleeve20-10-13/6.I.ShieldRepair-MechanicalFerrules,ShieldMaterial,Tape,andaSleeveReferto:_Paragraph1.E.fortheapplicableconditionsfortherepairofwireandcablewithasplice_Figure116fortheconfigurationofthespliceassembly.Figure116CONFIGURATIONOFTHESPLICEASSEMBLY(1)Removethenecessarylengthoftheouterjacket.RefertoFigure117.Figure117JACKETREMOVAL(a)Ononesideofthedamagedarea,carefullycutthejacketaroundthecircumferenceofthewireorthecableaminimumof0.4inchfromtheendofthedamage,awayfromthedamagedarea.CAUTION：DONOTCUTALLTHEWAYTHROUGHTHEJACKET.DAMAGECANOCCURTOTHESHIELDORWIRE.(b)Ontheothersideofthedamagedarea,carefullycutthejacketaroundthecircumferenceofthewireorthecableaminimumof0.4inchfromtheendofthedamage,awayfromthedamagedarea.CAUTION：DONOTCUTALLTHEWAYTHROUGHTHEJACKET.DAMAGECANOCCURTOTHESHIELDORWIRE.(c)Cutthejacketlightlyalongthelengthofthejackettoberemoved.CAUTION：DONOTCUTALLTHEWAYTHROUGHTHEJACKET.DAMAGECANOCCURTOTHESHIELDORWIRE.(d)Pullthejacketapartatthelineswhereitiscut.NOTE:Ifitisnecessary,thewireorthecablecanbebentatthelineswherethejacketwascut.CAUTION：DONOTBENDTHEWIREORTHECABLEMORETHAN3TIMESTHEDIAMETER.DAMAGETOTHEWIREORTHECABLECANOCCUR.(2)Preparetheshield.RefertoFigure118.Figure118SHIELDPREPARATION(a)Carefullycutaroundthecircumferenceoftheshieldoneachsideofthedamagedarea.Makesurethatthedistancefromtheendofthejackettotheendoftheshieldisaminimumof0.31inch.(b)Removetheunwantedshieldwiththedamage.(3)Makeaselectionoftwosetsofinnerandoutermechanicalferrules.RefertoSubject20-30-12.Makesurethat：_TheferrulesarethecorrectTemperatureGrade_Theinnerferrulehasthesmallestdiameterthatcanmovefreelyonthejacket_Theouterferrulehasthesmallestdiameterthatcanbeputontheinnerferruleandshield.20-30-12〔目录〕20-30-12/3.H.MechanicalFerrulesNOTE:AsatisfactoryalternativefortheBACS13S()BferruleistheMS21981-()ferrulethathastheequivalentsize.NOTE:Thenickelplatedferrulesarenotcolorcoded.Figure6BOEINGFERRULEPARTNUMBERSTRUCTURE(4)Makeaselectionofaferrulecrimptool.RefertoSubject20-30-12.20-30-12〔目录〕20-30-12/4.B.MechanicalFerruleCrimpTools(5)Putoneinnerferruleonthejacketofthewireorcable,totherearoftheareatorepair.(6)Movethestrandsoftherearshieldapartandmakethemstraight.(7)Aligntheforwardendoftheinnerferrulewiththeendofthejacket.(8)Foldthestrandsoftherearshieldbackontheinnerferrule.Makesurethatthestrandsoftheshieldaresymmetricalaroundthecircumferenceoftheferrule.(9)MakeaselectionofashieldmaterialfromTable9.Makesurethattheshieldmaterialhas:_ThecorrectTemperatureGrade_Thesmallestdiameterthatcanbeputonthefoldedbackshield.NOTE:Foralternativeshieldmaterials,refertoSubject20-00-11.20-10-13/1.GNecessaryMaterials：Table920-00-11/2.MShieldMaterials(10)Cutthenecessarylengthoftheshieldmaterial.Makesurethatthelengthoftheshieldmaterialisaminimumof0.62inchmorethanthelengthofthejacketthatisremovedfromthewireorthecable.(11)Puttheshieldmaterialonthewireorcable.(12)Putthetwoouterferrulesontheshieldmaterial.(13)Aligntheendoftheshieldmaterialwiththeendoftheshieldthatisfoldedback.(14)Aligntherearendofoneoftheouterferruleswiththerearendoftheinnerferrule.Makesurethat:_Theouterferrulegoesaroundtheshieldmaterial_Therearendoftheouterferruledoesnotextendfartherthantherearendoftheinnerferrule_Therearendoftheouterferruleisamaximumof0.06inchfromtherearendoftheinnerferrule.(15)Crimptheferrules.夹接工具引见参考20-00-1220-00-12目录：(16)Puttheotherinnerferruleonthejacketofthewireorcableforwardoftheareatorepair.(17)Movethestrandsoftheforwardshieldapartandmakethemstraight.(18)Aligntheforwardendoftheinnerferrulewiththeendofthejacket.(19)Foldthestrandsoftheforwardshieldbackovertheinnerferrule.Makesurethatthestrandsoftheshieldaresymmetricalaroundthecircumferenceoftheferrule.(20)Puttheendoftheshieldmaterialonthefoldedbackshield.(21)Aligntherearendoftheotherouterferrulewiththerearendoftheinnerferrule.Makesurethat:_Theouterferrulegoesaroundtheshieldmaterial_Theshieldmaterialispulledtight_Therearendoftheouterferruledoesnotextendfartherthantherearendoftheinnerferrule_Therearendoftheouterferruleisamaximumof0.06inchfromtherearendoftheinnerferrule.(22)Crimptheferrules.(23)Removetheshieldandtheshieldmaterialthatextendfartherthantherearendoftheinnerferruleoneachendoftheshieldsplice.(24)MakeaselectionofaheatshrinkablesleevefromTable5.Makesurethatthesleevehas:_ThecorrectTemperatureGrade_Thesmallestdiameterthatcanbeputonthespliceassembly.NOTE:Foralternativeheatshrinkablesleeves,refertoSubject20-00-11.20-10-13/1.GNecessaryMaterials：Table520-00-11/2〔Materials〕/2.N〔Sleeves〕/Table27〔HEATSHRINKABLESLEEVES〕：(25)Cutthenecessarylengthofthesleeve.Makesurethatthelengthisaminimumof1inchfartherthantherearendoftheferrulesoneachendofthespliceassembly.(26)MakeaselectionofaTFEinsulationtapefromTable6.MakesurethattheinsulationtapeisthecorrectTemperatureGrade.20-10-13/1.GNecessaryMaterials：Table6(27)Tightlywindalayerofthetapeonthespliceassembly.Makesurethatthelayeroftape:_Starts0.50inch±0.25inchfartherthantherearendoftheferruleatoneendofthesplice_Stops0.50inch±0.25inchfartherthantherearendoftheferruleattheotherendofthesplice_Makesa50percentoverlap.(28)Tightlywindasecondlayerofthetapeonthespliceassembly.Makesurethatthelayeroftape:_Startswherethefirstlayeroftapestops_Stopswherethefirstlayeroftapestarts_Makesa50percentoverlap.(29)Putthesleeveontheshieldspliceassembly.Makesurethateachendofthesleeveisaminimumof0.25inchfartherthanthetapeoneachendofthespliceassembly.(30)Shrinkthesleeveintoitsposition.RefertoSubject20-10-14.导线与电缆 概述导线是指在一个绝缘层里，有多股镀锡〔镀银或镀镍〕的铜丝〔高密度铜合金丝〕组合在一同，其柔软性较好；在电路中起到衔接的作用。电缆是在一个绝缘层里有一根或多根导线外部有特殊的防护层组合而成，绝缘层是由聚氯乙烯〔PVC〕、玻璃丝增强的聚脂树脂〔GUP〕、聚铣铵〔PA〕、聚四氯乙烯〔PTFE〕或其他绝缘资料组成，有良好的绝缘功用、防水、防油、抗腐蚀和抗热张力特性；在运用的导线或电缆时，要思索契合环境温度的要求〔低于105°C〕。用于高温区域250°C以上〔如：发起机〕的导线或电缆，绝缘层运用PTEE资料。铝线用于电源系统只是为了减轻飞机重量。如表6.2.1。表6.2.1线的种类德国规范美国规范线的种类9251MIL-W5086铜线耐高温105°CMIL-C7078铜线耐高温205°C9253MIL-W16878铜线只用于开关部位耐高温105°CMIL-W7139铜线耐高温205°C29900MIL-W7072铜线耐高温105°CMIL-W25038铜线耐高平和400°C防火耐高温5分钟为1093°C导线引见导线的种类：单芯绝缘导线、特殊用途的公用导线、耐高温绝缘导线等。导线的主要组成资料：绝缘层资料：普通区域：PVC、尼龙或其它绝缘资料组成。高温区域〔250°C以上〕：PTFE资料特性：普通具有防水、防油。导线芯资料：铜芯线：镀锌、银、镍或高密度铜合金丝资料。铝芯线：用于电源系统，只是为了减轻飞机的重量。电缆的种类：多线电缆：两根或多根绝缘导线装于一根导管内。扭绞电缆：两根或多根绝缘导线拧在一同。屏蔽电缆：一根或多根绝缘导线掩盖有金属编织的屏蔽网。同轴电缆：有一根绝缘的中央导线同一金属编织的外导线体构成。导线与电缆的种类：带屏蔽或不带屏蔽的单芯Class导线/电缆001-199带屏蔽或不带屏蔽的双芯绞合Class导线/电缆201-299带屏蔽或不带屏蔽的三芯绞合Class导线/电缆301-399带屏蔽或不带屏蔽的四芯及以上的绞合导线/电缆401-499公用种类导线高温导线同轴电缆热电偶衔接导线其它类型导线超越下面的一切的导线/电缆501-8991A-99Z航空公司预留的导线901-999C9001-C9999厂家预留的客户化的导线束编码A-A到Y-YZ-A到Z-Z带极性的预留的客户化导线PA1-PY9PZ1-PZ9导线、电缆的结构引见：以MIL-W-7139导线结构：任务电压600V；环境温度范围-60°C~250°C屏蔽数据防波电缆结构〔以BMS13-48Type12Class1为例〕：任务电压600V；环境温度范围-65°C~多芯电缆结构〔以MIL-W-7078为例〕：任务电压600V；环境温度范围-65°C~250°C。铝线结构〔以MIL-W-7072为例〕：任务电压600V；环境温度范围-55°C~250°C。音频屏蔽防波电缆：此种类型电缆用于音频信号的传输。屏蔽的作用是扫除对线路的搅扰〔如点火装置〕或许是外界对线路形成的搅扰〔如通讯系统的设备〕；为了使屏蔽防波层完全发扬作用，要求屏蔽防波层接在＜50Hz公共端〔DC接地〕。玻璃纤维绝缘资料主要作用在于增强导线的抗拉性、隔热性和耐火性。高频同轴电缆：用于高频信号传输电缆，这种高频同轴电缆的婚配阻抗是50Ω，高频同轴电缆的屏蔽防波层作为回线运用，另外还起到屏蔽作用，高频同轴电缆的芯线是镀银独芯铜线。任务温度范围-40°C~84°C公用导线和电缆：热电偶衔接导线：在发起机排气温度(EGT)、发起机滑油温度和发起机燃油温度的指示系统中，运用的温度传感器是热电耦。热电偶是由两种不同金属资料焊接而成：一种是镍铬合金，另一种是镍基铝锰合金。在发起机局部衔接热电耦传感器的导线也是一根是耐高温的镍铬合金导线，另一根导线是镍基铝锰合金导线，这样可以减小热电耦传感器的热电势损耗。在维护任务中必需牢记，在接线时切记不能将两根不同资料的导线不能接反，否那么造温度指示系统缺点，接线端必需运用磅表来磅螺母的扭力距，力矩值请见相关机型的飞机维护手册〔AMM〕或相关发起机的维护手册。防火系统线路：防火系统线路运用的导线原那么上要同时满足下面条件：白色、白色或红白相间的绝缘外套导线特别耐高温导线要契合MIL-W-25038要求，任务环境温度是400℃，要求在导线绝缘和导线自身烧毁之前，在五分钟之内必需接受1093℃高温。导线结构〔见以下图所示〕硅树脂绝缘资料〔SI〕主要作用是增强导线的耐磨性和阻燃性的特点，带玻璃纤维的聚氟乙烯资料〔GPTFE〕的主要作用是防火系统线路的导线结构导线/电缆的选用：在导线/电缆的选用时，要思索温度适用等级和绝缘等级。如表6.2.2和6.2.3。导线环境温度是105℃指的是航空器的常温区域，环境温度是250℃指的是发起机、气源管道左近的高温区域，在民用航空器的某些重要飞行系统〔如导航系统〕都采用耐高平和耐磨的导线/电缆。铝线主要用于民用航空器的电源系统的局部线路〔发起机、吊架不允许运用〕。运用铝线的目的的为了减轻飞机重量，增加发起机的耗油量，从而提高飞机经济效益。在民用航空器上运用的导线/电缆绝大少数是依照波音资料规范规范〔BMS〕，在一些重要系统也采用高于波音资料规范规范的美国军用飞机规格〔MIL表6.2.2资料温度等级温度等级最高温度等级替代等级°C°FA100212TypeIB135275TypeIIC180356TypeIIID260500TypeIV关于给定温度等级的资料，只能运用此等级的资料或更初级别的资料。当某等级资料的温度没有给定，可以选用比它较低级别的资料。表6.2.3资料绝缘等级绝缘等级描述1具有BMS3-11资料的绝缘等级2不具有BMS3-11资料的绝缘等级假设顺序里指定出某种称号或PN的资料，必需选择同等级的资料。假设资料的绝缘等级没有给定，两种皆可。导线的尺寸及负载才干AWG－美国导线规格与英制线缆尺寸代码，如表6.2.4。表6.2.4线缆尺寸代码ＡＷＧ规格英制线缆尺寸代码Ω/1000英尺真实截面25°Cmm2in22600141.60.150.2*10-32400226.20.240.3*10-32200416.50.380.5*10-32000610.40.600.9*10-3180106.510.961.5*10-3160124.091.232*10-3140202.581.943*10-3120301.622.964*10-3100501.025.157*10-380900.6418.9810*10-361400.40313.420*10-342200.25321.830*10-323400.15934.550*10-314200.10041.860*10-305300.12652.780*10-3006800.079567.20.10008500.063084.80.1300001070.0500107.80.167导线和电缆的负载才干，如表6.2.5和6.2.6。表6.2.520°C最大电缆直径最大导线直径线截积CUmin导线号AWG电流维护电流接线片正常最大自动熔化面积螺栓mmmmmm2-AAAAmm2mm1.650.60.242446440.3522.280.380.382258550.522.541.040.61207.5127.550.752.62.921.320.971810161010133.301.541.2216131815101.543.811.931.9414172420152.554.312.433.081223323020455.083.095.291033424030656.474.248.558465850501067.375.3313.66607880701669.396.9021.64801011007025811.38.7633.9210014512510035812.69.7541.51125170-15050813.810.852.81/0150195-150701015.512.467.72/0175230-200701017.314.877.73/0200270-200901219.015.690.84/0225320-2009012表6.2.6200C铝导线负载最大电缆直径最大导线直径线截面积CＵmin导线号AWG电流维护电流接线片正常最大自动熔化面积螺栓mmmmmm2-AAAAmm2mm6.354.068.558355035308.3187.755.3613.665075505014.269.146.6521.6470110807021.3410.98.3833.9210015010010034.1213.710.652.8013520012515053.91/015.212.167.700150220-15069.32/017.013.677.7000170240-17584.73/018.414.990.80000200270-2001084/0AWG导线负载才干图表：如下图，该图表的横坐标是飞机规范导线规格〔线号〕，纵坐标是导线在不同电压下允许的导线长度，水平线代表在允许的导线长度条件下可允许的导线电压损耗，关于不同导线所允许的电压损耗值，位于主图表左侧的独自表格内，斜穿表格的一系列平行线代表导线的负载电流，用这个图表我们依据负载电流和允许的电压损耗值找到所需的导线规格〔线号〕。在图表中有三条从左下角斜向上方的粗曲线，曲线表示是在不同装置条件下导线负载才干。假设负载电流和电压的交点在曲线1的上部，那么说明导线束或电缆经过这个延续电流时不会超载。假设负载电流和电压的交点在曲线1和曲线2之间，那么说明导线是在自在空气中能延续承载电流，但假设是在导线管里的导线束或电缆那么会发生过热超载而使导线或电缆损坏。假设负载电流和电压的交点在曲线2和曲线3之间，那么说明导线承载的电流必需限制在2分钟之内。导线的运用与选择导线的降压：〔如表6.2.7〕从飞机发电机或电瓶连到汇流条的主电源线，运用时其降压不超越2%。从飞机发电机或电瓶的接地端到设备的接地端的导线电阻为0.005欧姆即契合要求。假设导线的压降不超越规则值，即导线也契合要求。表6.2.7导线的压降在负载电路中允许的最大电压降正常系统任务电压〔V〕允许的电压降〔V〕延续任务连续任务140.51281211548200714导线的选择说明：导线的尺寸必需满足，当有电流流过时不会发生过大的电压降。导线的尺寸必需满足，当需求的电流流过时不会发生过热现象。导线选择时，要知道的数据：线长〔英尺〕、流过的安培数、允许的压降，还要思索电流流过是连续的，还是延续的。导线与导线束的识别导线的分类：美国规范的导线分类：美国军用规范：MIL－W5086、7072、7139、16878、25038；MIL－C7078波音资料规范：BMS13－XX型号〔TYPE〕：如：BMS13-28T3C资料型号等级线的尺寸资料：相当于MIL-W-7139，说明触及哪种绝缘资料。型号：〔导线的绝缘和屏蔽状况〕TYPE(T1)：绝缘的导线或电缆TYPE(T2)：由TYPE1导线带镀镍的铜网屏蔽层组成。TYPE(T3)：屏蔽电缆由TYPE2加一层维护套。TYPE(T4)：绝缘的多芯电缆由几股TYPE1导线拧在一同，添加维护绝缘层。等级：〔芯线股数〕等级1〔C1〕：单股线。等级2〔C2〕：两股拧在一同的线。等级3〔C3〕：三股拧在一同的线。不时到等级8。线的尺寸：线的横截面积〔线号AWG〕或DIN规范。公用导线：热电偶衔接导线：在发起机排气温度〔EGT〕指示系统中，发起机局部与热电偶衔接导线，一根是耐高温的镍铬合金导线，另一根导线是镍基铝锰合金；这两种资料在制造热电偶探头时都运用；两根导线不能接反。火警系统线路，原那么上要满足下面条件之一：白色或白色绝缘外套导线特别耐高温电缆要契合MIL-W-25038要求，在导线绝缘和自身烧毁之前，在五分钟之内接受1093ºC高温。导线束的识别：导线和电缆的标志〔如图6.2.1〕在飞机一切系统中每根导线和单芯电缆都有标志。这些标志是用特殊的打印机打在导线和电缆下面的。每捆导线束都有标志，标志间距为6～12英尺；导线束末端标志普通不超越3英寸；3英寸以下的导线不用作标志；两芯和多芯屏蔽电缆只在两端加套管作标志；这些标志是由厂家印在电缆上；飞机上新装的成捆电缆都没有标志；但是，需求每隔6英尺做一个标志；标志可以并排或上下陈列。图6.2.1标志方式：导线识别在导线束中识别导线，识别码可以在目录中查到，还有其他方式的标志，但不常用。如图6.2.2。图图6.2.2导线导线及导线束的查找：如图6.2.3和表6.2.7。线号查找线号查找时，可直接查找WDM-WIRE-LIST，再经过相关图号查找线路图。系统章节部件查找时，先查找WDM相关章节线路图，再查找WIRE-LIST。图图6.2.表6.2.7导线清单导线代码〔WireTypeCode〕如表6.2.8。由导线型号和飞机型号按数字字母陈列的数据表，#为线芯数，RWTC为可交流前型号的交流件。假定无RWTC，才查备份件号。表6.2.8线型代码由导线的件号或说明和飞机型号按字母数字陈列的数据表.如表6.2.9。表6.2.9导线数据码有规则的导线件号和备份导线件号按字母数字陈列的数据表，如表6.2.10。表6.2.10导线数据码普通区域的导线修缮主要的工具设备：螺刀、斜口钳、夹接工具、直尺、毛刷、工具盘、带手册的电脑、剥线钳、游标卡尺等。资料：金属内环、金属外环、屏蔽资料、对接收、扎线、高频头、热缩管、绝缘胶带等。预备任务：1.1工具：〔借用注销〕基本工具：依据操作内容预备基本工具设备。公用工具：依据手册查阅结果，再预备公用工具。1.2耗材：基本耗材：依据操作内容预备基本耗材。公用耗材：依据手册查阅结果，再预备相关耗材。普通区域的导线修缮：导线绝缘层破损修缮：一根导线拼接修缮：多根导线拼接修缮：2.1依据给定的导线〔AWG：16/20〕的受损状况，确定导线修缮的顺序。20-10-13查询SWPM手册〝FrontMatter〞中的〝Content目录〞，确定〝导线/电缆修缮〞所在章节：20-10-13〔REPAIROFELECTRICALWIREANDCABLE〕P8220-10.13〔REPAIROFELECTRICALWIREANDCABLE〕；20-10-13，1〔GENERALDATA〕；20-10-13，1.A〔ApplicableRepairConditionsforWireandCable〕Forthegeneralconditionsthatareapplicablefor：●Therepairofwireandcable,refertoParagraph1.B.●TherepairofAirworthinessLimitationwiring,refertoParagraph1.C.●TherepairofFuelSystemwiringthathasAirworthinessLimitations,refertoParagraph1.C.●Therepairofwiringthatisadjacenttoafueltank,refertoParagraph1.C.●Theselectionofpartsandmaterialsforarepair,refertoParagraph1.D.●Therepairofwireandcablewithasplice,refertoParagraph1.E.Fortheapplicabledamageandrepairconditionsof：●Wireandcableinspecialsystems,refertoTable1●Specialwireandcable,refertoTable2●Othertypesofwireandcable,refertoTable3P91020-10-13，1.BP910P91120-30-12，1.DP91220-10-13，2〔WIREANDCABLEDAMAGEANDREPAIRCONDITIONS〕20-10.13，2.A〔UnshieldedWire〕Fortheconditionsthatareapplicabletothedatainthisparagraph,refertoParagraph1.A。Repairisnecessarywhenthesetypesofdamageoccur：●Damagetotheconductor;refertoParagraph4.A。●Damagethatgoesthroughtheprimaryinsulation;refertoParagraph3.A。●Damagethatgoesintotheprimaryinsulation;refertoParagraph3.A。●Thebondbetweentheoverlapsofthetapeoftheinsulationisbrokenforalengthmorethan50percentofthediameterofthewire；refertoFigure6andParagraph3.C。●Damagethatgoesintoorthroughtheinsulationofaspliceassemblywhentheconductorsplicedoesnothavedamage；refertoFigure7andParagraph3.F。20-10-13，4〔REPAIROFUNSHIELDEDWIREANDUNSHIELDEDCABLEWITHASPLICEASSEMBLY〕20-10-13，4.A〔RepairofaWire〕〔4.BRepairofaCable〕20-10-13，1.E〔GeneralConditionsfortheRepairofWireandCablewithaSplice〕2.2找到导线修缮顺序，按顺序对导线停止修缮前的预备〔剪去导线的损伤长度段、清洁〕。依照顺序20-10-13，4.A〔1〕，剪去导线受损段。依照顺序20-10-13，4.A〔2〕，用酒精清洁导线〔＞3inch〕并晾干。2.3依据导线的CAU值，确定用封严的拼接套件对单根导线或两根导线停止修缮的顺序。20-30-12，7.F〔非高温导线〕20-30-121.A，依据密封拼接收确定——20-30-121.C，Table2，依据温度等级和导线AWG规格确定——20-30-127.A。在20-30-127〔SEALEDSPLICECONFIGURATIONSFORUNSHIELDEDWIRESANDUNSHIELDEDCABLES〕中，在7.A〔SpliceAssemblyConfigurations〕中，在Table61〔SEALEDSPLICEASSEMBLYCONFIGURATIONS〕中，依据导线CAU值等因数确定用封严拼接套件〔SpliceKit〕对导线〔单根或两根〕停止修缮的顺序20-30-127.F〔OneorTwoWirestoOneorTwoWires-SpliceKit〕。P2514P2515P2575P257620-30-127.F拼接收修缮顺序：P2589P2590P25912.4查阅手册，确定导线的CAU值。20-10-12，7.F，1.D依据20-30-127.F(1)顺序，在20-30-121.D〔ConductorCAU〕的Table4〔AWGTOCAUCONVERSION〕中，依据导线的AWG规格，确定导线的CAU值：AWG16=CAU24；AWG20=CAU12。P25172.5查阅手册，确定适用的拼接套件。20-30-12，7.F，Table19依据20-30-127.F(1)顺序，在20-30-12Table19〔PARTNUMBERSOFSE