線路施工修理二

導(dǎo)線修理(20-10-13)1導(dǎo)線修理2導(dǎo)線修理(20-10-13)GeneralConditionsfortheRepairofWireandCable-Theconditionthatisthecauseofthedamagemustberemovedtopreventsubsequentdamage-Arepairmustbedonewithcleanhandsandcleantoolstopreventcontaminationthatcancauseabadsealoftheinsulationmaterials-Therepairispermanent,unlessitisspecifieddifferentlyintheapplicablerepairconditionsorintheapplicablerepairprocedure3導(dǎo)線修理(20-10-13)-Arepairmustnotbeputinaconduit-Arepairmustnotbeputinaconnectorbackshellorabackshelladapter-Arepairmustnotbeputonabendofawireoracable-Arepairmustnotbeputonawireharnesswherethewireharnessisfrequentlybent;forexample,aninstrumentpanelorahingeddoor.GeneralConditionsfortheRepairofWireandCable4導(dǎo)線修理(20-10-13)GeneralConditionsfortheSelectionofPartsandMaterialsforaRepair-TheTemperatureGradeoftheinsulationmaterialsfortherepairtheinsulationofawireorthejacketofacablemustbethesameasorhigherthantheTemperatureGradeofthewireorthecable-Ifitisnecessarytorepairdamageofawireoracablewithasegmentofwireorcable,thesegmentmusthavethesamepartnumberasthedamagedwireorcable.5導(dǎo)線修理(20-10-13)NecessaryMaterialsHEATSHRINKABLESLEEVESINSULATIONMATERIALS:FilmStrip/TapePROTECTIVEMATERIALS:Tape6導(dǎo)線修理WireandCableDamageandRepairConditions:UnshieldedWireRepairisnecessarywhenthesetypesofdamageoccur:序列號損壞狀態(tài)修理方案1Damagetotheconductortherepairwithasplice2DamagethatgoesthroughtheprimaryinsulationWindthetape3Thebondbetweentheoverlapsofthetapeoftheinsulationisbrokenforalengthmorethan50percentofthediameterofthewire;Windthetape4DamagethatgoesintoorthroughtheinsulationofaspliceassemblywhentheconductorsplicedoesnothavedamageWindthetape7導(dǎo)線修理WireandCableDamageandRepairConditions:UnshieldedWireRepairisnotnecessarywhenthesetypesofdamageoccur:序列號損壞狀態(tài)1Afoldintheinsulationatabend2Asmallscratchonthesurfaceoftheinsulation3Abrasionthatmakesthesurfaceoftheinsulationrough4Thebondbetweentheoverlapsofthetapeoftheinsulationisbrokenforalengththatislessthan50percentofthediameterofthewire.89導(dǎo)線修理導(dǎo)線修理WireandCableDamageandRepairConditions:ShieldedWireRepairisnecessarywhenthesetypesofdamageoccur:序列號損壞狀態(tài)修理方案1Damagetotheconductortherepairwithasplice2Damagetotheprimaryinsulationtherepairwithasplice3Damagetotheshieldismorethan1inchinlengthormorethan25percentofthecircumferenceoftheshield,therepairwithasplice4Damagetotheshieldislessthan1inchinlengthandlessthan25percentofthecircumferenceoftheshield;TapeandTies10導(dǎo)線修理導(dǎo)線修理WireandCableDamageandRepairConditions:ShieldedWireRepairisnecessarywhenthesetypesofdamageoccur:序列號損壞狀態(tài)修理方案5Damagethatgoesthroughthejacket,buttheshieldhasnodamageWindthetape6DamagethatgoesintothejacketWindthetape7Damagethatgoesintotheinsulationoftheshieldspliceassembly,buttheshieldhasnodamageWindthetape8Thebondbetweentheoverlapsofthetapeofajacketisbrokenforalengthmorethan50percentofthediameterofthewireWindthetape11導(dǎo)線修理12導(dǎo)線修理RepairoftheInsulationofWireandCable：Windthetape步驟號修理內(nèi)容1Removeloosepiecesofinsulationandroughedgesattheareaofthedamage.2Cleantheinsulationwithisopropylalcohol.3fillinthecavity:(a)MakeaselectionofaTemperatureGradeDfilmstrip(b)Windthenecessarylayersoffilmstripontheinsulationtofillthecavityandmakeasmoothsurface.4Windtwolayersofthetapeonthedamagedarea.5Assemblealacingtapewireharnesstie13導(dǎo)線修理14導(dǎo)線修理15導(dǎo)線修理RepairofWirewithaSpliceAssembly步驟號修理內(nèi)容1Removethedamagedlengthofthewire.(a)Ononesideofthedamage,cutthewire.(b)Ontheothersideofthedamage,cutthewire.Makesurethattheendofthewireisperpendiculartothelongitudinalaxisofthewire.2Cleantheinsulationwithalcohol.Makesure:-Tocleantheareaoftheinsulationfromtheendofeachwiretoaminimumof3inchesfromtheend-Thatthecleanedareaisdry.3Assembleasealedsplice.Forthespliceof:-AnAWG8orlar