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專用
人人文庫
NATIONALSTANDARD
OFTHEPEOPLESREPUBLICOFCHINA
CodeforDesignofHighVoltageElectricalInstallation(3-110kV)
GB50060-2008
ChiefDevelopmentDepartment:ChinaElectricityCouncil
ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopment
ofthePeoplesRepublicofChina
ImplementationDate:June1,2009
Translatedby:SUNTHERTranslation&Solutions
專用
人人文庫
ChinaPlanningPress
Beijing2009
圖書在版編目(CIP)數(shù)據(jù)
高壓配電裝置設(shè)計(jì)規(guī)范
3kV~110kV:GB50060-2008:
英文中華人民共和國住房和城鄉(xiāng)建設(shè)部組織編譯
/.—
北京中國計(jì)劃出版社
:,2014.9
ISBN978-7-80242-996-3
中高電壓配電裝置設(shè)
Ⅰ.①3…Ⅱ.①…Ⅲ.①--
計(jì)規(guī)范英文
-Ⅳ.①TM642-65
中國版本圖書館數(shù)據(jù)核字第號
CIP(2014)124540
ChineseeditionfirstpublishedinthePeoplesRepublicofChinain2008
EnglisheditionfirstpublishedinthePeoplesRepublicofChinain2014
byChinaPlanningPress
rd
,,專用
3FloorCTowerGuohongBuilding
No.A11,Muxidi-Beili,XichengDistrict
Beijing,100038
PrintedinChinabyBeijingJinghuaHucaiPrintingCO.,LTD
?2010byMinistryofHousingandUrban-RuralDevelopmentof
thePeoplesRepublicofChina
Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformor
byanymean人人文庫s,graphic,electronic,ormechanical,includingphotocopying,recording,
oranyinformationstorageandretrievalsystems,withoutwrittenpermissionofthepublisher.
Thisbookissoldsubjecttotheconditionthatitshallnot,bywayoftradeorotherwise,belent,
re-sold,hiredoutorotherwisecirculatedwithoutthepublisherspriorconsentinanyformof
blindingorcoverotherthanthatinwhichthisispublishedandwithoutasimilarcondition
includingthisconditionbeingimposedonthesubsequentpurchaser.
ISBN978-7-80242-996-3
AnnouncementofMinistryofHousingandUrban-Rural
DevelopmentofthePeoplesRepublicofChina
No.194
AnnouncementonIssuingtheNationalStandardof
CodeforDesignofHighVoltageElectricalInstallation
(3-110kV)
CodeforDesignofHighVoltageElectricalInstallation
The(3-110kV)isherebyapproved
asaChinesenationalstandardbearingaserialnumberofGB50060-2008,andwillcomeintoeffect
onJune1,2009Articles2.0.10,4.1.9,5.1.1,5.1.3,5.1.4,5.1.7,7.1.3and7.1.4are
Design
compulsoryprovisionsandmustbeenforcedstrictly.TheformereditionGB50060-92
CodeforHighVoltageElectricalInstallation
(3-110kV)willbeabolishedtillthen.
ThiscodewillbepublishedanddistributedbyChinaPlanningPressasauthorizedbyResearch
InstituteofStandardsandNorms,MinistryofHousingandUrb專用an-RuralDevelopmentofthe
PeoplesRepublicofChina.
ThiscodeistranslatedbySUNTHERTranslation&SolutionsundertheauthorityofChina
ElectricPowerPlanning&EngineeringAssociation.
MinistryofHousingandUrban-RuralDevelopmentofthePeoplesRepublicofChina
December15,2008
人人文庫
Foreword
ThiscodeisrevisedbytheNorthwestElectricPowerDesignInstituteoftheChinaPower
EngineeringConsultingGroupCorporationfromtheoriginalnationalstandard,GB50060-1992
DesignCodeforHighVoltageElectricalInstallationNoticeon
(3-110kV),inresponsetothe
PrintingandDistributingthePreparationandRevisionPlanofNationalStandardsfor
EngineeringConstruction
2004(Jianbiao[2004]No.67)issuedbytheformerMinistryof
Construction.
Duringtherevisionprocess,thedraftingpanelhasmadeextensiveinvestigationandresearch,
seriouslysummarizedtheexperiencesgainedfromimplementationoftheoriginalcode,incorporated
thecommentsfromthedomesticinterestsconcernedandlearnedadvanceddesignideasalloverthe
world.Thisrevisionnotonlyretainstheapplicablearticlesintheoriginalcodebutsupplements
somenewarticles.
Thiscodeisorganizedintosevenchaptersandtwoappendixes.Themaincontentsinclude
General,GeneralProvisions,EnvironmentalConditions,SelectionofConductorsandElectrical
Equipment,Switchgear,GasInsulatedMetalEnclosedSwitchg專用ear(GIS),Requirementsof
SwitchgearonBuildingsandStructures.
Articlesinboldinthiscodearecompulsoryandmustbeobservedstrictly.
TheMinistryofHousingandUrban-RuralDevelopmentofthePeoplesRepublicofChinais
responsibleforadministeringthiscodeandinterpretingthecompulsoryarticles.TheNorthwest
ElectricPowerDesignInstituteofChinaPowerEngineeringConsultingGroupCorporationis
responsibleforinterpretingthespecifictechnicalcontentsherein.Duringtheimplementationofthis
code,theinterestsconcernedareexpectedtoseriouslysummarizetheexperiencesandreferany
commentsandsuggestionsonmodificationorsupplementationhereoftotheNorthwestElectric
PowerDesignInstituteofChinaPowerEngineeringConsultingGroupCorporationattheaddress:
SouthTuanjieStreetNo.22,HighandNewTechnologyIndustrialDevelopmentZone,XianCity,
ShaanxiProvince,Postcode710075,forreferenceinthefuturerevision.
Theleadingdraftingorganizationandauthorsofthiscode:
Leadingdraftingorganization:NorthwestElectricPowerDesignInstituteofChinaPower
EngineeringConsult人人文庫ingGroupCorporation.
Leadingauthors:ZhangFengmi,CaoYongzhen,ZhangXiaojiang,YangYuehong,ShiDong,
SunJinandOuyangCefei.
ThiscodeistranslatedbySUNTHERTranslation&SolutionsundertheauthorityofChina
ElectricPowerPlanning&EngineeringAssociation.
Contents
…………………………
1General(1)
……………
2GeneralProvisions(2)
……………………
3EnvironmentalConditions(3)
…………
4SelectionofConductorsandElectricalEquipment(5)
………………
4.1GeneralProvisions(5)
…………
4.2SelectionofConductors(6)
…………………
4.3SelectionofElectricalEquipment(6)
………………………
5Switchgear(8)
……………………
5.1SafetyClearanceofSwitchgear(8)
……………………
5.2TypeSelectionofSwitchgear(12)
………………………
5.3ArrangementofSwitchgear(12)
…………
5.4AccessesandFenceswithinSwitchgear(13)
…………
5.5FireProtectionandOilStorageFacilities(14)
……………
6GasInsulatedMetalEnclosedSwitchgear(GIS)專用(16)
…………………
7RequirementsofSwitchgearonBuildingsandStructures(17)
…………
7.1RequirementsImposedbyIndoorSwitchgearonBuildings(17)
………
7.2RequirementsImposedbyOutdoorSwitchgearonStructures(17)
…………………
7.3RequirementsImposedbyIndoorGISonBuildings(18)
……
AppendixALong-TermAllowableAmpacityofRectangularAluminumConductors(19)
……
AppendixBPollutionClassificationStandardforLines,PowerPlantsandSubstations(20)
……………
ExplanationofWordinginThisCode(22)
人人文庫
1General
1.0.1
Thiscodeisdevelopedforthedesignof3-110kVhighvoltageswitchgear(switchgearin
short)thatistobesafe,reliable,technicallyadvance,costeffectiveandeasilyoperationaland
maintainable.
1.0.2
Thiscodeappliestothedesignofnewlybuiltandexpanded3-110kVHVswitchgear.
1.0.3
IndesigningHVswitchgear,theequipmentshallbeselectedandthelayoutschemethereof
shallbeestablishedreasonablyaccordingtopowerloadcharacteristics,capacity,ambientconditions
aswellasrequirementsoninstallation,operationandmaintenance.Iftechnicallyandeconomically
feasible,electricalequipmentandmaterialswithhighefficiencyandlowenergyconsumptionshall
beused.
1.0.4
Theswitchgearshallbedesignedbasedonthecharacteristics,scale,anddevelopmentplan
ofindividualprojects,takingintoaccountboththelongtermandshorttermplanswhile
highlightingthelatterandreservingspaceforfutureexpansion.
1.0.5
Switchgearmustbedesignedwithaminimumuseofland.
1.0.6
Inadditiontothiscode,switchgearshallbedesignedincomp專用liancewiththecurrentrelevant
nationalstandardsaswell.
人人文庫
·1·
2GeneralProvisions
2.0.1
Thelayoutofswitchgearandselectionofconductors,electricalequipment,andgantries
shallmeetthesafetyrequirementsduringnormaloperation,installationandmaintenanceandinthe
eventofshort-circuitandovervoltageunderlocalambientconditions,andshallaccommodatethe
systemcapacityplannedforthecoming10-15years.
2.0.2
Thephasesequenceofindividualcircuitsofswitchgearshouldbeconsistentwitheach
other.ItmaybeintheorderofphasesA,BandCwhenfacingtheoutgoinglinesandviewingfrom
lefttoright,fartonear,andtoptobottom.Indoorrigidconductorsandoutdoorbusbarbridgeshall
becoloredaccordingly.Tobespecific,linesofphasesA,BandCshallbecoloredyellow,green,and
redrespectively.Expansionworksshallhaveaphasesequencethesameastheexistingswitchgear.
2.0.3
Forarrangementsequencesofbusbarin66-110kVswitchgear,thebusbarattransformer
sideshouldbebusbarI,andthatatthelinesidebusbarII.Forswitchgearindouble-layer
arrangement,thebusbaronthelowerlayershouldbebusbarIandthatontheupperlayer
busbarII.
2.0.4
Outdooropentype110kVswitchgearshallnotbemaintaine專用dwhenbeingenergized.
2.0.5
For66-110kVopentypeswitchgear,busbararrestersandvoltagetransformersshould
shareonegroupofdisconnectors.
2.0.6
For66-110kVopentypeswitchgear,earthingswitchesshouldbeprovidedatthelineside
oflinedisconnectorsandatthecircuitbreakersideofdisconnectorsmountedatbothsidesofa
circuitbreaker.Gas-insulatedmetal-enclosedswitchgearshouldbeequippedwithisolationbreaks.
2.0.7
For66-110kVopentypeswitchgear,earthingswitchesshallbeinstalledforeachsection
ofbusbar.
2.0.8
For66-110kVopentypeswitchgear,voltagetransformersshouldbeequippedonthree
phasesofeachgroupofmainbusbars.Whenitisnecessarytomonitoranddetectthepresenceof
voltageatlineside,voltagetransformersshouldbeinstalledononephaseattheoutgoinglineside.
2.0.9
For66-110kVswitchgear,allcircuitsinstalledwithcircuitbreakersshallbeequipped
withcurrenttransformers.
2.0.10Blockingdevicesshallbeprovidedamongdisconnectorsofindoorandoutdoorswitchgear,the
correspondingcircuit人人文庫breakersandearthingswitches.Whentheindoorswitchgearisarrangedatlow
level,blockingdevicesshallbeprovidedtopreventaccidentalaccesstoenergizedbay.
2.0.11
Thelayoutofoil-filledelectricalequipmentinswitchgearshallallowforsafeandconvenient
observationofoillevelandtemperatureunderenergizedconditions,andfacilitateoilsampling.
·2·
3EnvironmentalConditions
3.0.1
Theelectricalequipmentandinsulatorsofoutdoorswitchgearshallbeprovidedwith
externalinsulationandotherdust-proofandanti-corrosionmeansbasedonlocalpollution
classification,andallowforconvenientcleaning.Pollutionclassificationstandardsofpowerplants
andsubstationsshallbeinaccordancewithAppendixBtothiscode.
3.0.2
Ambienttemperaturesofbareconductorsandelectricalequipmentinswitchgearshallbein
accordancewithTable3.0.2.
Table3.0.2AmbientTemperatureofBareConductorsandElectricalEquipment
AmbientTemperature(℃)
CategoryLocation
MaximumMinimum
OutdoorsMeanmaximumtemperatureofthehottestmonth—
Bareconductors
IndoorsDesigntemperaturewithventilation—
OutdoorsAnnualmaximumtemperatureAnnualminimumtemperature
ElectricalequipmentIndoorreactorMaximumdesignexhaustairtemperaturewith專用ventilation—
OtherindoorlocationsDesigntemperaturewithventilation—
Note:1Theannualmaximum(orminimum)temperaturereferstotheaveragevalueoveryearsofmeasuredannualmaximum(or
minimum)temperatures.
2Themeanmaximumtemperatureofthehottestmonthreferstotheaveragevalueofthemonthlyaveragevalue(i.e.,the
averagevalueofthedailymaximumtemperature)ofthehottestmonthsoveryears.
3Iftheinformationregardingdesigntemperaturewithventilationisunavailable,theambienttemperatureofindoorbare
conductorsandotherelectricalequipmentmaytakethemeanmaximumtemperatureofthehottestmonthplus5℃.
3.0.3
Theambientrelativehumidityforconductorsandelectricalequipmentshallemploythe
averagerelativehumidityofthemosthumidmonthatlocalareas.Inhumidtropicalregions,humid-
tropictypeelectricalequipmentshallbeemployed.Inhumidsubtropicalregions,ordinaryelectrical
equipmentmaybeused,providedthatprotectivemeasuresshallbetakenbasedonthelocal
operationalexperiences.
3.0.4
Whereambienttemperatureislowerthantheminimumallowabletemperatureofelectrical
equipment,instrume人人文庫ntsandrelays,heatingdeviceswithautomatictemperaturecontrolshallbe
provided,orotherthermalinsulationmeasuresshallbetaken.
Inareassubjecttoseveresnowandice,measuresshallbetakentoavoidaccidentsresulting
fromiceandsnow.
Theicebreakingthicknessofdisconnectorsshallnotbelessthanthemaximumicecoating
thicknessoftheirinstallationlocation.
3.0.5
Indesigningthemaximumwindspeedforoutdoorswitchgear,conductorsandelectrical
equipment,the10-minuteaveragemaximumwindspeed10mabovethegroundwitha30-year
recurrenceintervalshallbeusedinareaswiththemaximumdesignwindspeedhigherthan35m/s,
theelectricalequipmentofoutdoorswitchgearshouldbeinstalledatalowerheightandthe
equipmentanditsfoundationsshouldbesecuredfirmly.
·3·
3.0.6
TheseismicdesignofswitchgearshallcomplywiththeactivenationalstandardGB50260
CodeforDesignofSeismicofElectricalInstallations
.
3.0.7
Inareaswithanaltitudeabove1,000m,electricalequipmentandelectricporcelainproducts
applicabletosuchhighaltitudeshallbeselectedforswitchgear.Theimpulseandpowerfrequency
testvoltageoftheirexternalinsulationshallbeinaccordancewiththeactivenationalstandard
InsulationCoordinationforHighVoltageTransmissionandDistributionEquipment
GB311.1.
3.0.8
Indesigningswitchgear,thecontinuousnoiselevelatrelevantoperatingplacesshallbe
reduced.Whereswitchgearisinthevicinityofresidentialareas,thenoiseleveloutsidetheboundary
Standardof
wallofresidentialareasshallcomplywiththeactivenationalstandardsGB3096
EnvironmentalNoiseofUrbanAreaEmissionStandardforIndustrialEnterprises
andGB12348
NoiseatBoundary
.
3.0.9
For110kVelectricalequipmentandfittings,visualcoronashallnotoccuronthenightofa
sunnydayatavoltage1.1timesthemaximumphasevoltage.
Thecoronacriticalvoltagefor110kVconductorsshallbehigherthanthemaximumoperating
voltageattheplaceswheretheyareinstalled.
專用
人人文庫
·4·
4SelectionofConductorsandElectricalEquipment
4.1GeneralProvisions
4.1.1
Themaximumoperatingvoltageforelectricalequipmentshallnotbelowerthanthatofthe
systemtowhichitbelongs.Thevoltagevaluesshallbedeterminedaccordingtotheactivenational
StandardVoltage
standardGB156.
4.1.2
Thelong-termallowablecurrentofconductorsshallnotbelessthanthecontinuous
operatingcurrentofthecircuitsconcerned.Theinfluenceofsunshineoncurrentcapacityshallbe
consideredforoutdoorconductors.Currentratingsofuninterrupted-dutyelectricalequipmentshall
beselectedtocaterforcontinuousoperationofcircuitsundervariouspossibleoperatingmodes.
4.1.3
Short-circuitcurrentusedtocheckthedynamicandthermalstabilityofconductorsand
electricalequipmentaswellasthebreakingcurrentofelectricalequipmentshallbecalculatedbased
onthesystemcapacityplannedforthecoming10-15years.
Theshort-circuitcurrentshallbedeterminedandcalculatedbasedonthenormalwiringmode
withmaximumpossibleshort-circuitcurrent,whichmaybegenerallycheckedwiththree-phase
shortcircuit.Ifthesinle-haseortwo-hasetoroundshort-circu專用itcurrentislarerthanthree-
gppgg
phaseshort-circuitcurrent,thecheckshallbemadebasedontheseverecase.
4.1.4
Thecalculationtimeforcheckingthethermaleffectofconductorshort-circuitcurrent
shouldbetheoperatingtimeofmainprotectionplusthefullopeningtimeofcorrespondingcircuit
breakers.Ifthereisadeadzoneinthemainprotection,anoperatingtimeandcorrespondingshort-
circuitcurrentthatcaneliminatethedeadzoneshallbeusedforbackupprotection.
Thecalculationtimeforcheckingthethermaleffectofelectricalequipmentshort-circuitshould
betheoperatingtimeofbackupprotectionplusthefullopeningtimeofcorrespondingcircuit
breakers.
4.1.5
Thecheckingofthermalstabilitymaybecomeunnecessaryforfusedconductorsand
electricalequipment;dynamicstabilityshallbecheckedforallconductorsandelectricalequipment
exceptforthoseprotectedbycurrent-limitingfuses.
Forvoltagetransformercircuitsprotectedbyfuses,dynamicandthermalstabilitymaynotbe
checked.
4.1.6人人文庫
Themaximumoperatingtemperatureshallnotexceed70℃forbareconductorsunder
normalconditionsandshouldnotexceed80℃foraluminumconductorsteel-reinforced(ACSR)and
tubularconductorswithdueconsiderationofsunshine.
Themaximumoperatingtemperatureofspecialheat-resistantconductorsmaybedetermined
basedonthedataavailablefrommanufacturerswithdueconsiderationoftheirimpactsonthe
connectedequipment,andprotectivemeasuresshallbetaken.
4.1.7
Incheckingtheratedshort-timewithstandcurrent,themaximumpermissibletemperature
maybetakentobe200℃forbareconductorsmadeofduraluminandaluminumalloy,and300℃for
thosemadeofhardcopper.Theconductortemperaturepriortoshort-circuitingshallbethe
operatingtemperatureunderratedload.
·5·
4.1.8
Ifthecross-sectionalareaofbareconductorsisselectedbasedonthenormaloperating
currentofcircuits,theirpermanentpermissibleampacityshallbecorrectedaccordingtothealtitude
andambienttemperatureofthelocalarea.
Formulti-conductorlines,theinfluenceofproximityeffectandheatshieldingonampacity
shallbeconsidered.
4.1.9Undernormaloperationorshortcircuitconditions,themaximumforceappliedonelectrical
equipmentleadsshallnotbegreaterthanthepermissibleloadoftheequipmentterminals.The
mechanicalcalculationofconductors,bushings,insulators,andfittingsofoutdoorswitchgearshallbe
conductedbasedonlocalmeteorologicalconditionsandspecificstressingconditions.Theirsafety
coefficientsshallnotbelessthanthosespecifiedinTable4.1.9.
Table4.1.9SafetyCoefficientofConductors,Bushings,InsulatorsandFittings
CategoryUnderLong-termLoadsUnderShort-termLoads
Bushingandsupportinginsulators2.501.67
Suspensioninsulatoranditsfittings4.002.50
Flexibleconductors4.002.50
Rigidconductors2.001.67
Note1Thesafetycoefficientofsuspensioninsulatorsinthistablecorrespondstothe1-hourelectromechanicaltestload.Inthecase
:
ofdestructiveloaditshallbe5.3and3.3resectivel.
,py
2Thesafetycoefficientofrigidconductorsissuitabletothefailurestressandshallbe1.6and1.4respectivelyforstressofyield
專用
point.
4.1.10
Theinsulationlevelofswitchgearshallbeinaccordancewiththecurrentnational
CodeforDesignofOver-voltageProtectionofIndustrialandCivilElectrical
standardGBJ64
Installation.
4.2SelectionofConductors
4.2.1
ACSRshouldbeusedforflexibleconductorsrated110kVandbelow.
4.2.2
Anti-corrosionaluminumorcopperstrandedconductorsshouldbeusedincoastalareas
withhighair-bornesalinityortheplaceswhereambientairwillcauseseverecorrosionto
aluminum.
4.2.3
Rigidconductorscanberectangular,double-grooveortubular.Thepermissibleampacityof
rectangularaluminumconductorsshallbeinaccordancewithAppendixAtothiscode.
4.2.4
Unevensett人人文庫lement,temperaturevariation,vibration,andotherfactorsshallbeaddressed
duringthedesignofrigidconductors.
4.3SelectionofElectricalEquipment
4.3.1
Theinsulationwithstandlevelofelectricalequipmentshallbeinlinewiththeactive
InsulationCoordinationforHighVoltageTransmissionand
nationalstandardGB311.1
DistributionEquipment
.TheelectricporcelaincreepagedistanceofHVelectricalequipmentshall
meetthepollutionrequirementsattheirinstallationlocations.
4.3.2
Forcircuitbreakersrated35kVandbelow,vacuumorSF6circuitbreakersshouldbeused;
forcircuitbreakersrated66kVand110kV,SF6circuitbreakersshouldbeused.
4.3.3
Disconnectorsshallbeselectedbasedonbothnormaloperatingconditionsandshortcircuit
·6·
faultconditions.
4.3.4
Currenttransformersandvoltagetransformersof3-35kVswitchgearshouldbeincast-
resininsulationstructure;thetypeofcurrenttransformersandvoltagetransformersof66-110kV
switchgearmaybeselectedaccordingtotheirinstallation/serviceconditionsandmanufacturing
technology.
4.3.5
Forcircuitsat35kVandbelowequippedwithvacuumcircuitbreakers,metaloxide
arrestersorR-Cabsorbersshouldbeusedforovervoltageprotectiondependingonthenatureof
operatedcircuitload(capacitiveorinductive).
4.3.6
Metaloxidearrestersshouldbeusedforovervoltageprotectionof66-110kVswitchgear.
4.3.7
Outdoorarcsuppressingcoilsshouldbeofoilimmersedtypeandtheindooronesofdry
type.
4.3.8
Metal-enclosedswitchgearshouldbeusedforswitchgearrated35kVandbelow,anditshall
beableto:
1
preventincorrectopeningandclosingofcircuitbreakers;
2
preventopeningandclosingofdisconnectorsunderloads;
3
preventconnectionofgroundingwires(closingofearthingswitches)whenenergized;
4
preventclosingofcircuitbreakers(disconnectors)withgroundingwiresconnected;and
5
preventaccidentalentryofpersonnelintoenergizedbays.
4.3.9
Thecreepagedistanceof3-20kVoutdoorpostinsulators專用andwallbushingsshallbein
accordancewiththepollutionlevelattheirinstallationlocations.Ifnot,postinsulatorsandwall
bushingswithavoltageofoneortwoclasseshighermaybeemployed.
人人文庫
·7·
5Switchgear
5.1SafetyClearanceofSwitchgear
5.1.1ThesafetyclearanceofoutdoorswitchgearshallnotbelessthanthevaluesshowninTable
5.1.1.Ifthedistancefromthelowestpartoftheelectricalequipmentexternalinsulatortotheground
islessthan2,500mm,fixedbarriersshallbemounted.
5.1.2
ThesafetyclearanceofoutdoorswitchgearshallbecheckedagainstFigure5.1.2-1,5.1.2-2
and5.1.2-3.
AABD
Figure5.1.2-1Values1,2,1,forChecking(專用Outdoor)
ABBCD
Figure5.1.2-2Values1,1,2,,forChecking(Outdoor)
Table5.1.1SafetyClearanceofOutdoorSwitchgear(mm)
SystemNominalVoltage(kV)
SymbolsApplicableScope
3-1015-203566110J
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