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SECTION 20. ELECTRICAL AND ELECTRONIC …

9/8/98AC 11-271 Page 11-105 SECTION 20. ELECTRICAL AND ELECTRONIC SYMBOLS11-271. GENERAL. The ELECTRICAL andelectronic symbols shown here are those thatare likely to be encountered by the aviationmaintenance technician. They are in accor-dance with symbols . Only those symbolsassociated with aircraft ELECTRICAL and elec-tronic wiring have been listed in general. Re-fer to for more specificdetail on each 11-27. ELECTRONIC / ELECTRICAL VariabilityRadiation IndicatorsPhysical State RecognitionTest-Point RecognitionPolarity MarkingsDirection of Flow of Power, Signal, orInformationKind of CurrentEnvelope EnclosureShield ShieldingSpecial Connector or Cable IndicatorAC 11-106 Par 11-272 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningResistorCapacit orAntennaBatteryThermal Element ThermomechanicalTransducerThermocoupleSp ark Gap Ignitor GapContinuous Loop Fire Detector(Temperature Sensor)Ignitor Plug9/8/98AC 11-272 Page 11-107 TABLE 11-27.

9/8/98 AC 43.13-1B Par 11-271 Page 11- 105 SECTION 20. ELECTRICAL AND ELECTRONIC SYMBOLS 11-271. GENERAL. The electrical and electronic symbols shown here are those that

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Transcription of SECTION 20. ELECTRICAL AND ELECTRONIC …

1 9/8/98AC 11-271 Page 11-105 SECTION 20. ELECTRICAL AND ELECTRONIC SYMBOLS11-271. GENERAL. The ELECTRICAL andelectronic symbols shown here are those thatare likely to be encountered by the aviationmaintenance technician. They are in accor-dance with symbols . Only those symbolsassociated with aircraft ELECTRICAL and elec-tronic wiring have been listed in general. Re-fer to for more specificdetail on each 11-27. ELECTRONIC / ELECTRICAL VariabilityRadiation IndicatorsPhysical State RecognitionTest-Point RecognitionPolarity MarkingsDirection of Flow of Power, Signal, orInformationKind of CurrentEnvelope EnclosureShield ShieldingSpecial Connector or Cable IndicatorAC 11-106 Par 11-272 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningResistorCapacit orAntennaBatteryThermal Element ThermomechanicalTransducerThermocoupleSp ark Gap Ignitor GapContinuous Loop Fire Detector(Temperature Sensor)Ignitor Plug9/8/98AC 11-272 Page 11-107 TABLE 11-27.

2 ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningTransmission PatchConductorCableWiringDistribution LinesTransmission LinesAlternative or Conditioned WiringAssociated or FutureAC 11-108 Par 11-272 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningIntentional Isolation of Direct-CurrentPath in Coaxial orWaveguide ApplicationsWaveguideStrip-Type Transmission LineTerminationCircuit ReturnPressure-Tight Bulkhead CableGlandCable Sealing EndSwitching FunctionElectrical Contact9/8/98AC 11-272 Page 11-109 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningBasic Contact AssembliesMagnetic Blowout CoilOperating CoilRelay CoilSwitchPushbutton, Momentary, or Spring-ReturnAC 11-110 Par 11-272 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningTwo-Circuit, Maintained, or Not Spring-ReturnNonlocking Switching, Momentary, orSpring-ReturnLocking SwitchCombination Locking and NonlockingSwitchKey-Type SwitchLever Switch9/8/98AC 11-272 Page 11-111 TABLE 11-27.

3 ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningSelector or Multiposition SwitchSafety InterlockLimit SwitchSensitive SwitchSwitches with Time-Delay FeatureFlow-Actuated SwitchAC 11-112 Par 11-272 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningLiquid-Level Actuated SwitchPressure- or Vacuum-Actuated SwitchTemperature-Actuated SwitchThermostatFlasherSelf-Interrupting SwitchFoot-Operated SwitchFoot SwitchSwitch Operated by Shaft Rotation andResponsive to Speed or DirectionSwitches with Specific Features9/8/98AC 11-272 Page 11-113 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningGovernorSpeed RegulatorRelayInertia SwitchMercur SwitchTerminalsAC 11-114 Par 11-272 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningCable TerminationConnectorDisconnecting DeviceConnectors of the Type Commonly Usedfor Power-Supply PurposesTest BlocksCoaxial ConnectorWaveguide FlangesWaveguide Junction9/8/98AC 11-272 Page 11-115 TABLE 11-27.

4 ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningFuseLightning ArresterArresterGapCircuit BreakerProtective RelayAudible-Signaling DeviceMicrophoneAC 11-116 Par 11-272 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningHandsetOperator s SetLampVisual-Signaling DeviceMechanical ConnectionMechanical InterlockMechanical MotionClutch Brake9/8/98AC 11-272 Page 11-117 TABLE 11-27. ELECTRONIC / ELECTRICAL symbols (continued).SymbolMeaningManual ControlGyroGyroscopeGyrocompassPosition IndicatorFire Extinguisher Actuator HeadPosition TransmitterRadio StationSpace StationAC 11-118 Par 11-272 Integrated CircuitAmplifiersLogic GatesDiodeTransistor Symbols11-273. 11-283. [RESERVED.]


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