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RTCA DO160-GThe relating standards:RTCA DO-160- avionic test standard at a glanceMIL-STD-704Environmental conditions and test procedures for airborneequipment, section 16: Power inputAirbus ABD 0100.1.8.1.(A350)Airbus ABD 0100.1.8.(A380)Boeing 787B3AMD24/CTHE SCOPE OF THE STANDARDThe DO-160G standard defines test conditions and procedures for AC and DC electrical powerapplied to the terminals of the equipment under test. It covers the following power supplies:AC supply networksDC supply networks 115Vrms fixed frequency 400Hz 14VDC 230Vrms fixed frequency 400Hz 28VDC 115Vrms variable frequency including 400Hz 270VDC 230Vrms variable frequency including 400HzPRODUCT CATEGORIES:Products for use on aircraft systems are classified into product categories depending on theconnected power supply network:Equipment for use on aircraft electrical systems with primary power from A(CF): AC system with constant frequency 400HzA(NF): AC system with narrow variable frequency 360Hz 650HzA(WF): AC system with wide variable frequency 360Hz 800HzA:28V DC system, primary power generated by AC system with transformer-rectifier unitsan optional DC battery may float on the busB:14V or 28V DC system, supplied by engine driven alternators/rectifiers or DC generatorsa DC battery with significant capacity is floating on the bus at all timeD:270V DC system, primary power generated by AC system with transformer-rectifier unitsZ:28V DC system, supplied by variable speed generators (use instead of category A or B)Z shall be acceptable when either- the DC supply does not have a battery floating on the bus- the control or protective equipment disconnects the battery from the DC bus- the battery capacity is small compared with the capacity of the DC generatorspage 1 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
SELECTION OF PRODUCT CATEGORY AND RELATING TEST PROCEDURE:page 2 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
TEST DESIGNATIONS:H:L:P:R:I:AC DISTORTION TESTSAC CURRENT MODULATION CONTROL TESTSAC POWER FACTOR TESTSDC CURRENT RIPPLE TESTSAC OR DC INRUSH CURRENT TESTSSTANDARD TEST TOLERANCES-For nominal voltages 100V AC or DC 1.0% of the test voltage or - 1.0% of the nominal voltageFor nominal voltages 100V AC or DC 2.0% of the test voltage or - 2.0% of the nominal voltageAll time durations 10% of the specified valueAll rise/fall times 1.5msec between 10% and 90% points of the transitionAll frequencies 1.0% of the specified valueSTANDARD ELECTRICAL POWER INPUT PARAMETERS-Phase sequence: A, B, CPhase displacement: 120 4 for A(CF) and A(NF), 120 6 for A(WF)Phase unbalance: 6Vrms for A(CF) and A(NF), 8Vrms for A(WF)Voltage waveform crest factor 1.41 0.15Max. voltage total harmonic distortion: 8% for A(CF) and A(NF), 10% for A(WF)Max. voltage individual harmonic content: 6% for A(CF) and A(NF), 8% for A(WF)refer to DO-160 16.5.1.8.1.-Voltage waveform DC content 0 0.20VDCpage 3 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
PART 1: AC supply tests: DO-160: 16.5.DO-160: 16.5.1 – NORMAL OPERATING CONDITIONS ACDO-160: 16.5.1.1. - VOLTAGE AND FREQUENCY – STEADY STATE PERFORMANCESingle phase equipment tests A(CF), A(NF) and A(WF)Normal 34122 / 244100 / 200122 / 244100 / 360Emergency conditions:TestVoltage(Vrms)1234122 / 244100 / 200122 / 244100 / 200650Hz440Hz410Hz400Hz390HzFrequency (Hz)Frequency .n.a.n.a.n.a.115V nominal voltage / 230V nominal voltage306090120150180T(min)Testing time 30min for each testpage 4 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
3-phase equipment A(CF), A(NF) under normal conditions:FrequencyPhase A/B/C(Hz)Voltage (Vrms)Phase Phase Phase A(CF) 42442328390360100100106200200212115V nominal voltage / 230V nominal 21024027078300Testing time 30min for each test3-phase equipment A(CF), A(NF) under emergency electrical conditionsFrequencyPhase A/B/C(Hz)Voltage (Vrms)Phase Phase Phase A(CF) 142442442288360360100100108200200216115V nominal voltage / 230V nominal 0240270300Testing time 30min for each testpage 5 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
3-phase equipment A(WF) under normal conditions:TestPhase A/B/CFrequencyVoltage (Vrms)(Hz)Phase Phase 0108200200216115V nominal voltage / 230V nominal phase equipment A(WF) under emergency electrical conditionsTestPhase A/B/CFrequencyVoltage (Vrms)(Hz)Phase Phase 0115V nominal voltage / 230V nominal voltagepage 6 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
DO-160: 16.5.1.2. - VOLTAGE MODULATION AC Nominal voltage 115V(230V) A(CF) testing frequency 400Hz A(NF) testing frequency 360Hzand 650Hz A(WF) testing frequency 360Hzand 800HzModulation characteristic:Modulation of the voltage amplitude with a maximum peak-tovalley difference of 5.0V at 115Vnetworks (10.0V at .731.46Modulation ion frequency component envelope- DO-160 Fig. 16-1 4 modulation frequency steps per logarithmic decadeaccording to the modulation envelope(e.g. 1Hz, 1.8Hz, 3.2Hz, 5.6Hz, 10Hz, 18Hz, 32Hz, 56Hz,1111.771.771.773.163.163.16 Each frequency step to dwell for a minimum of 120s5.625.625.62 A(CF) modulation frequency steps from 1Hz 200Hz101010 A(NF) modulation frequency steps from 1Hz 180Hz 100100177.83177.83177.83n.a.(320)(320)100Hz, 180Hz, 320Hz, 560Hz)360Hz nominal frequency A(NF) modulation frequency steps from 1Hz 325Hz at650Hz nominal frequency A(WF) modulation frequency steps from 1Hz 180Hz at360Hz nominal frequency A(WF) modulation frequency steps from 1Hz 400Hz at800Hz nominal frequencypage 7 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
DO-160: 16.5.1.3. - FREQUENCY MODULATION AC Testing with nominal voltage 115V(230V)A(CF) Testing mean frequency 400HzA(NF) testing mean frequency 360Hz and 650HzA(WF) testing mean frequency 360Hz and 800Hzpage 8 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
DO-160: 16.5.1.4. – MOMENTARY POWER INTERRUPTIONS ACTi:Tf:Power interrupt timeTime to decay fromVNOM to VMINT r:Time to rise fromVMIN to VNOMVMIN: The minimum level (as apercentage of VNOM) towhich the applied voltage isrequired to decayTesting frequencies:A(NF) and A(WF) equipment shallbe tested with both frequencies.TestA(CF) equipment:A(NF) equipment:A(NF) equipment:A(WF) equipment:A(WF) equipment:400Hz, 115Vrms/ 230Vrms360Hz, 115Vrms /230Vrms650Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms800Hz, 115Vrms /230VrmsTf(ms) 1Ti(ms)2Tr(ms) 1%VNOM (VMIN)Test011Tf(ms)43Ti(ms)33Tr(ms)17%VNOM (VMIN)12100350124853195page 9 of 28 tributed by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
TestTf(ms)17Ti(ms)8Tr(ms)4%VNOM 01526062080501613271335page 10 of 28 pages%VNOM ce-e-0003.docxDistributed by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
TestTf(ms)Ti(ms)Tr(ms)%VNOM (VMIN)TestTf(ms)Ti(ms)Tr(ms)%VNOM (VMIN)720180501752050810048018 150 109250105019 1200 1010500200page 11 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
ADDITIONAL TEST CONDITIONS FOR A(NF) AND A(WF) EQUIPMENT:Ti:Tf:Tr:time at 0V20ms5msTest condition numberIIIIIITi (ms)303080F1 (Hz)360FMAX360F2 (Hz)FMAX360FMAXWith FMAX 650Hz for A(NF) category equipmentFMAX 800Hz for A(WF) category equipmentIV80FMAX360V180360FMAXVI180FMAX360DO-160: 16.5.1.5. – NORMAL TRANSIENTS AC16.5.1.5.1. NORMAL SURGE VOLTAGERe-Run the cycle describedthree timesA monitoring with a voltmeteris recommendedTesting frequencies:A(CF):A(NF):A(NF):A(WF):A(WF):400Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms650Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms800Hz, 115Vrms /230VrmsTestUtest A(CF) A(NF)Utest A(WF)Durationpage 12 of 28 G-AtAGlance-e-0003.docxDistributed by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
16.5.1.5.2. NORMAL FREQUENCY TRANSIENTS ALL AC EQUIPMENTBefore running the test operatethe equipment with 115Vrms/230Vrms and 400Hz for fiveminutesRe-Run the cycle describedthree timesTransition betweenfrequencies shall occur in lessthan 1msTestftestDurationDO-160: 16.5.1.6. 0Hz1.5sV400Hz5sNORMAL FREQUENCY VARIATIONS AC, A(NF) / A(WF) EQUIPMENTBefore running the test operatethe equipment with 115Vrms/230Vrms and 400Hz for fiveminutesf(Hz)IIIIIIIV800650Re-Run the cycle describedthree times36010ms5ms5min5sT(ms/s)Testftest A(NF)I360HzII650HzIII360HzIV360Hzftest 60Hz5spage 13 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
DO-160: 16.5.1.7. – VOLTAGE DC CONTENT ACTest for single phaseequipmentTestUtestDurationDC offsetTest for 3-phase equipmentEach phase individual plus allphasesTesting frequencies:A(CF):A(NF):A(NF):A(WF):A(WF):400Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms650Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms800Hz, 115Vrms 0.20VDCIII115Vrms230Vrms30min 0Vrms5minDC offset R0-0.20VDC 0.20VDCthenDC offset SDC offset TDC offset RST000-0.20VDC-0.20VDC-0.20VDC 0.20VDC 0.20VDC 0.20VDCthenthenTestUtest RSTDurationDO-160: 16.5.1.8. – VOLTAGE DISTORTION ACTesting frequencies:A(CF):A(NF):A(NF):A(WF):A(WF):400Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms650Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms800Hz, 115Vrms /230VrmsTHD A(CF) A(NF)Max. 8%THD A(WF)Max. 10%page 14 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
DO-160: 16.5.2 – ABNORMAL OPERATING CONDITIONSDO-160: 16.5.2.1. - VOLTAGE AND FREQUENCY – STEADY STATE PERFORMANCESingle phase equipment tests A(CF), A(NF) and A(WF)Abnormal conditions:Frequency (Hz)TestVoltage(Vrms)1134 / 268A(CF)430297 / 194370A(NF)360650360650A(WF)360800360800Additional requirements A(CF) only:TestVoltage(Vrms)1234122 / 244100 / 200122 / 244100 / 200Frequency (Hz)A(CF)430430370370Testing time 30min for each test3-phase equipment under abnormal conditions:TestPhase A/B/CVoltage (Vrms)PhasePhase 971973: A(CF),134134128A(NF)2682682563: A(WF)1341341262682682524: A(CF),9797103A(NF)1941942064: A(WF)9797105194194210115V nominal voltage / 230V nominal voltageU(Vrms)1234134V/244V132.5V/265V128V/256V A(CF), A(NF)126V/252V A(WF)122V/244V A(CF), A(NF)115V/230V105V/210V A(WF)103V/206V A(CF), A(NF)98.5V/197V97V/194V306090120150T(min)Testing time 30min for each testTesting frequencies:A(CF): 400Hz, 115Vrms /230VrmsA(NF): 360Hz, 115Vrms /230Vrms and 650Hz, 115Vrms /230VrmsA(WF): 360Hz, 115Vrms /230Vrms and 360Hz, 115Vrms /230Vrmspage 15 of 28 ibuted by: Reliant EMC LLC, 408 320 9644/ 408 916 5750, www.reliantemc.com
Additional requirements A(CF) only:Test1234Phase A/B/CTestPhase A/B/CVoltage (Vrms)Voltage (Vrms)Phase Phase Phasef(Hz)Phase Phase 708101.5101.5101.5100100108203203203200200216115V nominal voltage / 230V nominal voltagef(Hz)430430370370DO-160: 16.5.2.2. – MOMENTARY UNDERVOLTAGE OPERATION ACTesting frequencies:A(CF):A(NF):A(NF):A(WF):A(WF):400Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms650Hz, 115Vrms /230Vrms360Hz, 115Vrms /230Vrms800Hz, 115Vrms /230VrmsTestUtestPhase 1Phase 2Phase 3Duration1260V120V10V20V7s7s115V nominal voltage / 230V nominal vo
RTCA DO-160 MIL-STD-704 Airbus ABD 0100.1.8.(A380) Airbus ABD 0100.1.8.1.(A350) Boeing 787B3 AMD24/C THE SCOPE OF THE STANDARD The DO-160G standard defines test conditions and procedures for AC and DC electrical power applied to the terminals of the equipment under test. It covers the following power supplies: AC supply networks DC supply networks
