航空公司培训资料：毫欧表测量工卡

电子电气测量技能培训序号工作项目工作者/日期1工具航材清点工具：毫欧表航材：搭接电阻测试盒；2毫欧表的使用步骤1及要求参看后附的手册SWPM20-20-00节选，先选择测量工作所需的各种工具，并记录工具名称和型号；步骤2及要求测量搭接电阻测试箱中各器件的搭接电阻，并记录数值（每人至少测量3个）；步骤3及要求。测量空速管与飞机结构的搭接电阻，并记录数值；步骤4及要求测量管路与卡子之间的搭接电阻，并记录数值；步骤5及要求测量放电刷与飞机蒙皮之间的搭接电阻，并记录数值；3结束工作：整理工具、清洁工作场地。一．MAXIMUMPERMITTEDRESISTANCEOFELECTRICALBONDSNOTE:Unlessitisspecifieddifferently,theresistancevaluesgiveninthetablesinthisParagraphrefertotheoverallresistanceasitismeasuredacrossthebondfromtheobjecttothebasicstructure.NOTE:Iftheresistancemeasurementismorethanthespecifiedmaximumresistance,thenyoumust:•Disassemblethecomponents•Recleanthematingsurfaces•Reassemblethecomponents•Retestthebondresistance.A.ResistanceofFayingSurfaceBondsTable34specifiesthemaximumresistancebetweenthedifferentsurfacesofafayingsurfacebondforanewinstallationorarepairwherethefayingsurfacesarepreparedforabondagain.Ifitisspecifiedtomeasuretheresistanceacrossmorethanonebondjoint,thetotalbondresistancemustnotbemorethanthesumofthebondresistancevalues.Forthebondtestoffayingsurfaces,refertoParagraph22.D..Table35givesthemaximumresistancevaluesforafayingsurfacebondwhentheresistancevaluesarereverified.Forthebondtestoffayingsurfaces,refertoParagraph22.D..Table35REVERIFICATIONRESISTANCEVALUESOFFAYINGSURFACEBONDSB.ResistanceofCompositePanelBondsTable36specifiesthemaximumresistanceofthebondofafastenerandacompositestructurewithconductivefinishforanewinstallationorarepairwherethefayingsurfacesarepreparedforabondagain.Table37specifiesthemaximumresistanceofthebondofaremovablecompositepanelwithconductivefinishandafixedcompositepanelwithconductivefinishforanewinstallationorarepairwherethefayingsurfacesarepreparedforabondagain.Forthebondtestofcompositepanels,refertoParagraph22.I.NOTE:TheresistancevaluesinTable36andinTable37arenotapplicableforradomes.Table36MAXIMUMRESISTANCEOFTHEBONDOFAFASTENERANDACOMPOSITESTRUCTUREWITHACONDUCTIVEFINISHTable37MAXIMUMRESISTANCEOFTHEBONDOFAREMOVABLECOMPOSITEPANELWITHACONDUCTIVEFINISHANDAFIXEDCOMPOSITEPANELWITHACONDUCTIVEFINISHC.ResistanceofReceptacleConnectorShellBondsThemaximumresistancebetweenthereceptacleflangeandtheinstallationsurface:•IsgiveninTable38foranewinstallationorarepairwherethefayingsurfacesarepreparedforabondagain.•Is2.5milliohms(0.0025ohms)forawireharnessthatisinserviceandthewireharnesscomponentshavenotbeenreplacedorrepaired.•Is10.0milliohms(0.010ohm)fora737-600,737-700,737-800,737-900,or737-900ERWingtoBodyfeedthroughconnectorthatisinserviceandhasnotbeenreplacedorrepaired.IftheWingtobodyfeedthroughconnectorhasbeenreplacedorrepairedthemaximumresistanceis0.05miliohms(RefertoWDM91-04-13).Table39specifiesthemaximumbondresistancebetweentheshieldterminationandtheinstallationsurfaceforanewinstallationorarepairwherethefayingsurfacesarepreparedforabondagain.Forthebondtestofconnectorshells,refertoParagraph22.H.Table38MAXIMUMRESISTANCEBETWEENACONNECTORSHELLANDSTRUCTURETable39MAXIMUMRESISTANCEBETWEENASHIELDTERMINATIONANDSTRUCTURETable39MAXIMUMRESISTANCEBETWEENASHIELDTERMINATIONANDSTRUCTURE(Continued二．MeasurementofAirplaneElectricalResistancetoGroundA.ReferencesReferenceTitle24-22-00-860-812RemoveElectricalPower(P/B201)24-41-11-200-803ExternalPowerReceptacleNeutralPintoGroundContinuityCheck(P/B601)SWPM20-02-10AirplaneFlammableLeakageZonesB.Tools/EquipmentNOTE:Whenmorethanonetoolpartnumberislistedunderthesame"Reference"number,thetoolsshownarealternatestoeachotherwithinthesameairplaneseries.Toolpartnumbersthatarereplacedornon-procurableareprecededby"Opt:",whichstandsforOptional.ReferenceDescriptionCOM-6457Meter-Insulation(Range:1-1,000VDCorequivalent,selectmeterpertestrequirements)Part#:1863-9700Supplier:62015Part#:1864-9700Supplier:62015Part#:1865PLUSSupplier:62015Part#:1865PLUSCESupplier:62015Part#:2471FSupplier:21844OptPart#:1865-00-CESupplier:62015C.PreparetoCheckSUBTASK20-40-11-840-001(1)Makesurethattheairplaneisnotparkedonpaintedsurfaces.SUBTASK20-40-11-860-001(2)Dothistask:ExternalPowerReceptacleNeutralPintoGroundContinuityCheck,TASK24-41-11-200-803.SUBTASK20-40-11-000-001(3)Dothistask:RemoveElectricalPower,TASK24-22-00-860-812.SUBTASK20-40-11-940-001WARNING:DONOTUSEAMEGOHMMETERNEARAFUELTANKVENT.ITCANCAUSEANEXPLOSIONORFIRE.FIREANDEXPLOSIONSCANCAUSEINJURIESTOPERSONNEL,ANDDAMAGETOEQUIPMENT.(4)Usetheseprecautionsforpossiblefuelvaporswhenyouuseamegohmmetertomeasurethedischargerresistance.(a)Useainsulationmeter,COM-6457orequivalentmeterwitha500VDCtestvoltageandamaximum5milliampereshortcircuitcurrent.(b)Donotuseamegohmmeterattheselocations:1)Areaadjacenttoorbelowawingfueltankvent,5ft(1.524m)diametercolumn,fromventtoground.2)AreadefinedasaFlammableLeakageZoneinSWPM20-02-10.3)Zeroto18in.(457mm)abovethegroundintheareaaroundtheairplane.(c)Makesurethat:1)Areaiswellventilated.2)Metalworkstandsaregrounded.3)Megohmmeterispluggedintoagroundedreceptacle.4)Megohmmeterisinsulatedfrommetalworkstand.SUBTASK20-40-11-480-003(5)Connectainsulationmeter,COM-6457,orequivalent,toaknownbonding/groundingpointinthewheelwell.SUBTASK20-40-11-480-004(6)Connecttheotherendoftheinsulationmeter,COM-6457,orequivalent,toanidentifiedgroundpointontheramp.SUBTASK20-40-11-420-002(7)Settheinsulationmeter,COM-6457,orequivalent,tothe50Vdcrange.SUBTASK20-40-11-970-001(8)Measuretheresistancetogroundandrecordtheresistanceinthemaintenancelog.NOTE:Theresistanceshouldbelessthan1.0megohms.Iftheresistanceismorethan1.0megohmsthis