電氣特性測試和故障處理天津鐵道職業技術學院鐵路信號基礎設備維護（一）室內電氣特性測試項目、周期及測試方法

1.測試項目（1）接收器軌入、軌出1、軌出2(主軌道接收、小軌道接收)電壓（2）接收器、發送器電源電壓（3）發送器功出電壓、移出電壓（4）模擬網絡盒電氣參數測試（5）衰耗濾波器電氣參數測試（6）載頻（7）軌道繼電器端電壓2.測試周期：第1項值班點每日1次；非值班點1、2項每月不少于2次，電氣特性測試和故障處理1.Indoortestitemsandperiod(1)Receivertrackinput,trackoutput1,trackoutput2(maintrackreceivingandsmalltrackreceiving)voltage(2)Powersupplyvoltageforreceiver,transmitter(3)Transmitterpoweroutputvoltage,frequencyshiftoutputvoltage(4)Electricalparameterstestforsimulationnetworkbox(5)Electricalparametersoftheattenuationfiltertest(6)Carrierfrequency(7)Trackrelayterminalvoltage2.TestperiodItem1dutyworkareaistestedonceaday;non-dutyworkareaitems1,2snotlessthan2timesamonth,Item1,2,3,7istestedonceamonth,item4,5,6onceeverysixmonths.ElectricalCharacteristicsTestingandTroubleshooting(二)室外測試項目及周期

1.測試項目（1）發送端調諧匹配單元E1、E2，V1、V2間電壓（2）接收端調諧匹配單元E1、E2，V1、V2間電壓（3）發送端軌面電壓（4）發送端調諧匹配單元(BA)端電壓（5）接收端軌面電壓（6）入口電流（7）發送端、接收端分路電壓（8）補償電容測試(檢測車檢測后，本檢修周期內可不再測試)（9）調諧匹配單元、空芯線圈、匹配變壓器

阻抗測試2.測試周期：第1～7項半年1次；第8、9項一年1次第三節電氣特性測試和故障處理Outdoortestitemsandperiod1.Testitems(1)VoltagebetweentransmittertuningmatchingunitE1,E2andV1,V2(2)VoltagebetweenreceivingtuningmatchingunitE1,E2andV1,V2(3)Transmitterrailsurfacevoltage(4)Transmittertuningmatchingunit(BA)terminalvoltage(5)Receivingendrailvoltage(6)Inletcurrent(7)Shuntingvoltagefortransmittingend,receivingend(8)Compensationcapacitancetest(afterthetestvehicletest,itisnolongertestinthemaintenanceperiod)(9)Impedancetestfortuningmatchingunit,hollowcorecoil,matchingtransformer2.TestperiodItems1to7istestedonceeverysixmonths;items8and9onceayear.ElectricalCharacteristicsTestingandTroubleshooting（三）技術標準1.軌道電路的標準分路靈敏度：（1）道床電阻為1.0Ω·km或2.0Ω·km時，分路靈敏度為0.15Ω。（2）道床電阻不小于3.0Ω·km時，分路靈敏度為0.25Ω。2.可靠工作電壓：軌道電路調整狀態下，收器接收電壓（軌出1）不小于240mV，軌道路可靠工作。3.可靠不工作：在軌道電路最不利條件下，使用標準分路電阻在軌道區段的任意點分時，接收器接收電壓（軌出1）原則上不大于153mV，軌道電路可靠不工作。4.在最不利條件下，在軌道電路任一處軌面機車信號短路電流，載頻為1700Hz、2000Hz、2300Hz時，機車信號短路電流不小于0.5A，2600Hz時不小于0.45A。5.直流電源電壓范圍：23.0~25.0V。電氣特性測試和故障處理Technicalstandards1.StandardshuntingsensitivityofTrackcircuits0.15Ωwhenballastresistanceis1.0Ω-kmor2.0Ω-km.0.25Ωwhenballastresistanceisnotlessthan3.0Ω-km.2.ReliableworkingvalueUnderregulatedstate,thereceiverreceivesavoltage(trackoutput1)notlessthan240mV,andthetrackcircuitworksreliably.3.Reliableno-workingvalueUnderthemostunfavorableconditionsofthetrackcircuit,thereceiverreceivingvoltage(trackoutput1)isinprinciplenotgreaterthan153mVwhenusingthestandardshuntingresistortoshuntatanypointinthetracksection,andthetrackcircuitdoesnotworkreliably.4.Underthemostunfavorableconditions,thelocomotivesignalshort-circuitcurrentatanypointontherailsurfaceofthetrackcircuitisnotlessthan0.50Aat1700Hz