通信基站电源系统的组成及其雷电防护措施

2008525253TelecomPowerTechnologiesMay25,2008,Vol.25No.3:2008201210:(19682),,:100923664(2008)0320066203(,230031):,,,SPD:;;;;;;SPD:TN86:ATheComponentandLightningProtectionMeasuresofanElectricalPowerSysteminBaseStationTAOChun2xin(ChinaMobileGroupDesignInstituteCo.,Ltd.AnhuiBrach,Hefei230031,China)Abstract:Inthepaper,anelectricalpowersystemofbasestationisintroducedindetail,includingACpowersupplysystem,DCpowersupplysystemandearthingsystem.Theimportanceofequipotentialinbasestationconstructionisdis2cussed.Accordingtothelightningprotectioncharacteristicsoftelecommunicationequipment,bothindoorandoutdoorbasestation,thegradedlightningprotectionmeasuresoftheelectricalpowersystemandtheselectionofSPDareanalyzed.Keywords:basestation;ACpowersupplysystem;DCpowersupplysystem;earthingsystem;lightningprotection;equipotentia;SPD11,,,1(1),,/,,,,,,,TT,,,380V,:323418V,50Hz,:4852Hz()3G,15kW(,20kW),20kW,,2530kW,425mm2ZR2BVV416mm2RVVZ21kV,56mm2ZR2BVV,21.5mm2ZR2BVV,32.5mm2ZR2BVV(2),,662008525253:TelecomPowerTechnologiesMay25,2008,Vol.25No.3,,(LVDS),,;LVDS,;LVDS,,,,,,,2,,,,,248V3.2V95mm2RVVZ21kV70mm2RVVZ21kV,25mm2RVVZ21kV16mm2RVVZ21kV(3)2,95mm2RVVZ21kV,,5m,,,,3,,1m,70mm2RVVZ21kV,35mm2RVVZ21kV35mm2RVVZ21kV(YD5068298),5,,,,,,2006()(YD509822005):510,,(20m),B2,,,60%80%,IEC664,ABC,4IEC664GB331.1283762008525253TelecomPowerTechnologiesMay25,2008,Vol.25No.3,A6kV,B4kV,C2.5kV4YD/T509822001()2.0.42.0.5,ASPD,BCSPDSPD,100ns,10/350s,SPD,25ns,8/20s10/350s8/20s20,Q(10/350s)=20Q(8/20s)4,,ASPDBSPD,BSPDCSPD,v=1.5108m/s,ASPD100ns,BSPD25ns,(100-25)nsS1=vs=1.51087510-9m=11.25m,ASPDBSPD11.25m,ASPDSPD,ASPDBSPD10mBCSPD,25ns,(25ns),B,BC:S2=vs=1.51082510-9m=3.75m[2]YD/T5098220013.7.8SPDSPD,SPDSPD,10m,SPDSPDSPD,5mA,15m,ASPDBSPD15m,,,,SPD,SPDBC,3+1,SPD,(),5B,,C,B100kASPD,B60kASPDC40kASPDSPD16mm2RVVZ21kV,25mm2RVVZ21kVSPD,1m,1.5m,SPD,1.5m53,,,,,,,,:[1].[M].:,2005.[2],,.[M].:,2004.[3]YD5068298.[S].:,1998.[4]YD/T509822001.()[S].:,2001.[5]YD/T509822005.()[S].:,2006.86