參考案例教案

DraftedCheckedReviewedApprovedBFANGCHENGGANGNUCLEARPOWERPLANTPHASEI(2×1000MW)文件編碼DOC. LL*-核島380V交流應(yīng)急電源配電盤LLA-LLB-LLC-LLD-LLE-LLG-LLI-LLJ-LLN-LLO-LLW系統(tǒng)手冊(cè)LL*-380VACEMERGENCYNETWORKLLA-LLB-LLC-LLD-LLE-LLG-LLI-LLJ-LLN-LLO-LLWSYSTEM3計(jì)綜CHAPTER3GENERALProject文件類型Sub-ItemEngineeringSA:B:C:√ 中廣核工程設(shè)計(jì)NationalAgradeengineeringCertificationNO: NationalAgradeengineeringCertificationNO:編碼InternalCP0905-DY-GN-ThisisthepropertyofCNPDCItmustnotbeused、reproduced、transmittedordisclosedwithoutthepriorwrittenpermissionofCNPDC本文件之屬于中廣核工程設(shè)REVISION版日狀編Drafted校Checked審Reviewed批Approved修改—說(shuō)明Modification-AB周防城港核電廠一期(2x1000MW)工FANGCHENGGANGNUCLEARPOWERPLANTPHASEILL*-核島380V交流應(yīng)急電源配電盤LLA-LLB-LLC-LLD-LLE-LLG-LLI-LLJ-LLN-LLO-LLW系統(tǒng)手冊(cè)LL*-380VACEMERGENCYNETWORKLLA-LLB-LLC-LLD-LLE-LLG-LLI-LLJ-LLN-LLO-LLWSYSTEM3計(jì)綜CHAPTER3GENERALBYBYBYBYBY DEC,文件修改記錄版日章頁(yè)修改范圍及依據(jù)AB初版（升版SystemManualChapter Rev TOC\o"1-2"\h\z\uGENERAL DESIGNBASESANDSAFETY EQUIPMENT GENERALDesignbasesandsafetyDesignThe380Vemergency-dswitchboardsLL*aredbythe6.6kVemergencydswitchboardsLHAandLHB,whichinturnared,eitherbyanpowersupplyor,incaseofemergency,bygeneratorsLHP/LHQorby9LHTsystem.TheLVemergency-dauxiliariesaredistributedalong2trains:trainAfromswitchboardLHA(LLA-LLC-LLE-LLI-LLNandsecondaryswitchboardTrainBfromswitchboardLHB(LLB-LLD-LLJ-LLOandsecondaryswitchboardLLW).Thetrainsareelectricallyandphysicallyseparated.TheLVauxiliariesareassignedtodifferentswitchboardstothetransformerwhichsthem,whilstallowingforfunctionalconstraintsandforthenecessityofthehighpowermotors(i.e.between75and160kW)amongstthedifferentSafety SAFETY REFERENCELingAoNuclearPower PRCUnitSARSectionHAF ENGINEERINGRULESANDReferencetoparticularengineeringrulesandFUNCTIONAL CONDITIONSINCASEOFComplieswithRFSLOSSOFTHEEmergencypowerLL(TrainB)5.ENVIRONMENTAND Active EXTERNALATTACKSAGAINSTTHESYSTEMHASTOBENotbreakPipeNot.high.lowNotMiscellaneousmissiles(includingloaddroptheAirplaneSafeshutdownDryingNotNoxious ases(otherthanthoseNotbyLiquids(escafrombreaksinthepiIonizingExplosions:fromin-NotParticularprecautionsagainstTornadoandinducedRCC-I+applicationnoteofthe ATTACKSONOTHERNoxiousvapours ases(otherthanthosecausedbyfire)Floodingliquids IN-SERVICE PERIODIC PROTECTIONAGAINSTEquipmentEachLL*switchboardisdbyathree-phase6.6/0.4kVtransformerofaratedpowerof630kVAor800kVA.Thedry-typetransformerisinstalledinacubicleplacedside-by-sidewiththecorrespondingdistributionswitchboard.ConnectionbetweentheswitchboardLVbusbarsandthetransformersecondaryisdirect.Thetransformerispowerd,ontheprimaryside,viaacablefromafusecontactorlocatedonthecorresponding6.6kVswitchboards(LHAorLHB).Thesecondaryswitchboards,ofi