1、GeneralSpecificationElectrical Function GME15492Antenna Coaxial Cable1 Introduction 21.1 Scope 21.2 Mission / Theme 21.3 Classification 21.3.1 Temperature Classes 22 References 32.1 External Standards/Specifications 32.2 GM Group Standards/Specifications 32.3 Additional References 33 Test Preparatio
2、n and Evaluation 33.1 Resources 33.1.1 Calibration 33.1.2 Alternatives 33.1.3 Facilities 33.1.3.1 Ovens 33.1.4 Equipment 33.2 Test Samples 33.3 Conditioning 33.4 Documentation 33.4.1 Test Results 33.4.2 Deviations from Test Procedure 44 Requirements and Procedure 44.1 Material 44.1.1 Conductor 44.1.
3、2 Insulation 44.1.3 Material of the Sheath 44.1.4 Identification 44.1.4.1 IR-Spectrum 44.2 Marking 44.3 Colours 44.4 Dimensions 44.4.1 Cable Outside Diameter 44.4.1.1 Test Samples 44.4.1.2 Apparatus 44.4.1.3 Procedure 44.4.1.4 Interpretation of Results 44.4.2 Conductor Diameter 44.4.2.1 Test Sample
4、44.4.2.2 Apparatus 44.4.2.3 Procedure 44.4.2.4 Interpretation of Results 44.4.3 Diameter of Strand 44.4.3.1 Procedure 44.4.3.2 Interpretation of Results 44.4.4 Thickness of the Sheath 44.4.4.1 Preparation of the Test Sample 44.4.4.2 Apparatus 54.4.4.3 Measurement Procedure 54.4.4.4 Interpretation of
5、 Results 54.4.5 Type of Screen(s) 54.4.5.1 Interpretation of Results 54.5 Electrical Characteristics 74.5.1 General 74.5.1.1 Test Sample 74.5.1.2 Apparatus 74.5.1.3 Procedure 74.5.1.4 Interpretation of Results 74.5.2 Characteristic Impedance 74.5.3 Resistance 74.5.4 Capacitance 74.5.5 Attenuation Lo
6、ss 74.5.6 Isolation 74.5.7 Velocity Ratio 74.5.8 Withstand Voltage of Dielectric 74.5.9 Power Rating 74.5.10 Return Loss 74.5.11 Current 74.5.12 Inductance 74.5.13 Delay 74.5.14 EMC Requirement 74.6 Mechanical Characteristic 114.6.1 Resistance to Cold 114.6.1.1 Test Sample 114.6.1.2 Apparatus 114.6.
7、1.3 Prcoedure 114.6.1.4 Interpretation of Results 114.6.2 Short-Term Ageing 114.6.2.1 Test Sample 114.6.2.2 Apparatus 114.6.2.3 Procedure 114.6.2.4 Interpretation of Result 114.6.3 Long-Term Ageing 114.6.3.1 Test Sample 11 Copyright 2007 General Motors Corporation All Rights ReservedPublication Depa
8、rtment: GME Specification CenterOctober 2007 - Issue No. 1 Page 1 of 13PRD045 - VPRE ST 1 10/03GME15492 GM EUROPE ENGINEERING STANDARDS4.6.3.2 Apparatus 114.6.3.3 Procedure 114.6.3.4 Interpretation of Results 114.6.4 Shrinkage in Heat 114.6.4.1 Test Sample 114.6.4.2 Apparatus 114.6.4.3 Procedure 114
9、.6.4.4 Interpretation of Results 124.6.5 Static Bending 124.6.5.1 Test Sample 124.6.5.2 Apparatus 124.6.5.3 Interpretation of Results 124.6.6 Cyclic Bending Test 124.6.6.1 Test Sample 124.6.6.2 Apparatus 124.6.6.3 Procedure 124.6.6.4 Interpretation of Results 124.6.7 Reistance to Flame Propagation 1
10、24.6.8 Temperature Humidity Cycling 124.6.8.1 Test Sample 124.6.8.2 Apparatus 124.6.8.3 Procedure 124.6.8.4 Interpretation of Results 125 Additional Requirements 125.2 Compatibility 125.3 Connectors 136 Notes 136.1 Glossary 136.2 Acronyms, Abbreviations andSymbols137 Additional Paragraphs 138 Coding
11、 System 139 Release and Revisions 139.1 Release 139.2 Revisions 131 IntroductionNote: Nothinginthisstandardsupersedesapplicablelaws and regulations.Note: In the event of a conflict between the Eng-lish and the domestic language, the English languageshall take precedence.1.1 Scope. This standard is b
12、ased on ISO 14572,to which additions have been made in several para-graphs.1.2 Mission / Theme. This standard specifiesdimensions, test methods and requirements forantenna coaxial cables.1.3 Classification. The cables are classified by theimpedance, attenuation loss and temperature.1.3.1 Temperature
13、 Classes. Five cable classeshave been defined in Table 1 to respond to thevarious temperatures encountered on vehicles.Note: Nothinginthisstandardsupersedesapplicablelaws and regulations. Copyright 2007 General Motors Corporation All Rights ReservedPage 2 of 13 Issue No. 1 - October 2007PRD045 - VPR
14、E ST G 10/03GM EUROPE ENGINEERING STANDARDS GME15492Table 1: Temperature ClassesClassOperatingtemperaturein CLong-term ageingtemperature 3000 hin CShort-term ageingtemperature 240 hin CThermal overloadtemperature 6 hin CA -40.+85 +852 +1102 +1352B -40.+100 +100 3 +1253 +1503C -40.+125 +125 3 +1503 +
15、1753D -40.+150 +150 3 +1753 +2003E -40.+175 +175 3 +2003 +25032 ReferencesNote: Only the latest approved standards are appli-cable unless otherwise specified.2.1 External Standards/Specifications.IEC 62153-4-3ISO 14572ISO DIS 20860-1SAE/USCAR-172.2 GM Group Standards/Specifications.GME8740GME14022GM
16、E14090GMW3059ON 2022.3 Additional References. None.3 Test Preparation and Evaluation3.1 Resources.3.1.1 Calibration. The test facilities and equipmentshall be in good working order and shall have a validcalibration label.3.1.2 Alternatives. Alternative test facilities andequipment may also be used.
17、However, all mea-suring variables as specified in this standard shallbe determined correctly with respect to its physicaldefinition.3.1.3 Facilities.3.1.3.1 Ovens. When an oven is required, unlessotherwise specified it shall be a hot air oven. The aircontained in the oven shall be completely changed
18、 atleast 8 times/h and 20 times/h max. at the specifiedtemperature.3.1.4 Equipment. As specified in the single tests.3.2 TestSamples. Numberoftestsamplesarespec-ified in each section. The cables shall be manufac-tured under full production conditions. No parts out ofprototype tools shall be used.3.3
19、 Conditioning. Test samples for all tests shall bepreconditioned for at least 16 h at a temperature of(+23 5) C (room temperature) anda relative humid-ityof (45.75) %. Unless otherwise specified, all testsother than “inprocess”testsshallbe conducted atthistemperature.3.4 Documentation. Samples of co
20、mponents ormaterial released to this standard shall be tested forconformity with the requirements of this standard andapproved by the responsible GM Department prior tothe start of delivery of production level componentsor materials.Any change to the component or materiale.g. design,function, proper
21、ties, manufacturing process and/orlocation of manufacture requires a new releaseof the product. It is the sole responsibility of thesupplier to provide the customer, unsolicited, withdocumentation of any change or modification to theproduct/process, and to apply for a new release.If not otherwise ag
22、reed to the entire verification testshall be repeated and documented by the supplierprior to start of delivery of the modified or changedproduct. In some cases a shorter test can be agreedto between the responsible GM Department and thesupplier.3.4.1 TestResults. The test results shallbe reportedina
23、 test report (seeGME14022). Thetest report shallinclude as minimum:Name of the supplier.Date.Designation of product. Copyright 2007 General Motors Corporation All Rights ReservedOctober 2007 - Issue No. 1 Page 3 of 13PRD045 - VPRE ST U 10/03GME15492 GM EUROPE ENGINEERING STANDARDSIMDS-ID and informa
24、tion, if the IMDS datasheethas been approved by the customer.Reference to used test method.Test results and interpretation of results.3.4.2 Deviations from Test Procedure. Deviationsfrom the requirements of the test procedures shallhave been agreed upon. Such requirements shallbe specifiedon compone
25、ntdrawings, test certificates,reports etc.4 Requirements and ProcedureNote: Where no tolerance is specified, all values areto be considered to be approximate.4.1 Material.4.1.1 Conductor. See GME14022.4.1.2 Insulation. See GME14022.4.1.3 Material of the Sheath. The sheath shall besmoothand free from
26、 cracks, pittingand otherdefectsvisible to the naked eye.4.1.4 Identification. As part of the work of typetesting, material identification shall be carried outby means of determination of various chemicaland physical properties and characteristics in orderto determine the properties and characterist
27、ics oftype-tested antenna cables.This is done in order to obtain reference values thatwould be needed in the event of any claims. Depar-tures from these reference values exceeding normaltolerances shall initiate more extensive inspection inaccordance with this standard.4.1.4.1 IR-Spectrum. This meth
28、od is used for identi-fication of organic compounds and takes place on thebasis of the position and intensity through molecularmovement provoked absorption.The analysis of the insulation shall be performed indeliveryconditionandafter short-term ageing (240h).Note: Depending on colour batch, small ch
29、angesand/or deviations are permitted.4.2 Marking. The usage of the marking is to beestablished by agreement between customer andsupplier.Colour-and laser marking are permitted. Whenmark-ing stamped into the insulating material, the raisedstamping shall be 20202020TBDTBD20TBD Copyright 2007 General M
30、otors Corporation All Rights ReservedPage 8 of 13 Issue No. 1 - October 2007PRD045 - VPRE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME15492Figure 1:Figure 2:Figure 3:Figure 4:Figure 5: Copyright 2007 General Motors Corporation All Rights ReservedOctober 2007 - Issue No. 1 Page 9 of 13PRD045 - VPRE
31、ST U 10/03GME15492 GM EUROPE ENGINEERING STANDARDSTable4:AttenuationLossMaximumattenuationdB/mABCDEFGHJ“RG59”“RG58”“LL58”“RG316”“RG179”“LL3.2”“RG174”“FL02YDBY”“LL3.5”100MHz0.160.16TBD0.30.280.20.30.250.22500MHz0.420.40.360.650.610.40.660.450.46900MHzNA0.550.350.86NATBDTBD0.6TBD1.0GHzNA0.60.570.9NA0.
32、560.920.650.651.5GHzNA0.77TBD1.2NA0.661.160.80.811.8GHzNA0.780.731.2NA0.751.290.90.892.0GHzNA0.80.851.45NA0.81.360.950.962.5GHzNATBDTBD1.6NA0.951.55NA1.103.0GHzNATBDTBDTBDNA1.161.72NA1.22 Copyright 2007 General Motors Corporation All Rights ReservedPage 10 of 13 Issue No. 1 - October 2007PRD045 - VP
33、RE ST G 10/03GM EUROPE ENGINEERING STANDARDS GME154924.6 Mechanical Characteristic.4.6.1 Resistance to Cold.4.6.1.1 Test Sample. Prepare two test samples,each of 3 m length and remove 25 mm of insulationfrom each end.4.6.1.2 Apparatus. A freezing chamber at a temper-ature of -40 C shall be used.4.6.
34、1.3 Prcoedure. The cable shall be stored at-40 C for 4 h.Wind the cable, still in cold, around a mandrel withdiameter five times the cable outside diameter. Fortesting with a rotatable mandrel, use mass and mini-mum number of turns according to Table 5. Windingspeed shall be 0.2 s-1. After winding,
35、the sheath shallbe visually examined. Then measure the attenuationloss and impedance.4.6.1.4 Interpretation of Results. The values shallbe according to Table 3 and Table 4.Table 5: Mandrel ParametersCable outsidediameterin mmMassin kgMinimumnumber ofturnsD 2.5 0.5 32.5D5 2.5 35D10 5 24.6.2 Short-Ter
36、m Ageing.4.6.2.1 Test Sample. Prepare two test samples,each of 3 m length and remove 25 mm of insulationfrom each end.4.6.2.2 Apparatus. Perform the short-term ageingtest using an oven at a temperature specified inTable 1.4.6.2.3 Procedure. Place the test samples in anoven 240 h. Fix the test sample
37、s by the conductorto avoid any contact between the insulation and thesupports. The test samples shall be separated fromeach other by at least 20 mm and from the inner sur-face of the oven. Cable insulations made of differentmaterials shall not be tested at the same time.Afterageing, withdraw the tes
38、t samples from the ovenand maintain them at (+23 5) C for at least16 h .Wind the cable around a mandrel with diameterfive times the cable outside diameter. For testing witha rotatable mandrel, use mass and minimum numberof turns according to Table 5. Winding speed shallbe 0.5 s-1. After winding, the
39、 sheath shall be visuallyexamined. Then measure the attenuation loss andimpedance.4.6.2.4 Interpretation of Result. No requirementsbut the values for impedance and attenuation lossshall be reported.4.6.3 Long-Term Ageing.4.6.3.1 Test Sample. Prepare two test samples,each of 3 m length and remove 25
40、mm of the insu-lation from each end.4.6.3.2 Apparatus. Perform the long-term ageingtest using an oven at a temperature specified inTable 1.4.6.3.3 Procedure. Place the test samples in anoven for 3000 h. Fix the test samples by the conduc-tor to avoid any contact between the insulation andthe support
41、s. The test samples shall be separatedfrom each other by at least 20 mm and from the innersurface of the oven. Cable insulations made of differ-ent materials shall not be tested at the same time.After ageing, withdraw the test samples from theoven and maintain them at (+23 5) C for at least16 h . Wi
42、nd the cable around a mandrelwith diameterfive times the cable outside diameter. For testing witha rotatable mandrel, use mass and minimum numberof turns according to Table 5. Winding speed shallbe 0.5 s-1. After winding, the sheath shall be visuallyexamined. Then measure the attenuation loss andimp
43、edance.4.6.3.4 Interpretation of Results. The values shallbe according to Table 3 and Table 4.4.6.4 Shrinkage in Heat.4.6.4.1 Test Sample. Prepare two test samples of200 mm length.4.6.4.2 Apparatus. Perform the test using an ovenat (+150 3) C.4.6.4.3 Procedure. Measure the exact length of thetest sa
44、mples at (+23 5) C. Place the test samplesin an oven for 15 minutes. Fix the test samples bythe conductor to avoid any contact between the insu-lation and the supports. The test samples shall beseparatedfrom eachother byatleast20mmand fromthe inner surface of the oven. Cableinsulations madeof differ
45、ent materials shall not be tested at the sametime.After ageing, withdraw the test samples from theoven. Let the test samples cool down to room tem-perature (+23 5) C and measure the length again. Copyright 2007 General Motors Corporation All Rights ReservedOctober 2007 - Issue No. 1 Page 11 of 13PRD
46、045 - VPRE ST U 10/03GME15492 GM EUROPE ENGINEERING STANDARDS4.6.4.4 Interpretation of Results. The shrinkage ofthe sheath shall not exceed 2 mm.4.6.5 Static Bending.4.6.5.1 Test Sample. Prepare two test samples,each of 3 m length.4.6.5.2 Apparatus. Wind the antenna cable arounda mandrel with a diam
47、eter of five times the cableoutside diameter. Then perform temperature cyclingaccording to Table 6.This complete one cycle. Repeat the cycle for a totalof 40 cycles.4.6.5.3 Interpretation of Results. After the test,measure the impedance and attenuation loss. Valuesaccording to Table 3 and Table 4.Ta
48、ble 6: Static Bending ParametersTemperaturein CTimeinh1 +23 62 -20 13 +23 64 +80 25 +23 64.6.6 Cyclic Bending Test.4.6.6.1 Test Sample. Prepare two test samples,each of 3 m length.4.6.6.2 Apparatus. See Figure 6.4.6.6.3 Procedure. The radius R shall befifteen times ( 20 %) the cable outside diame-te
49、r. A guide may be applied to stop the mass fromswinging.Theverticallyhangingcableshallbe fixedon oneend,the other end loaded by a mass of 0.5 kg/mm2 timesthe total conductor area. The mass shall be fixedto the cable. Connect the core and screen to a DCcurrent so it stops when core or screen have failures.The cable shall be bent 90 over the radius R at aspeed of 15 cyles/minute.4.6.6.4 Interpretation of Results. The test pieceshall withstand x number cycles, see Table 7, with-out cracks or failure to occur. Attenuation loss andimpedance according to
