GB 50060-2008 3～110kV高壓配電裝置設計規(guī)范

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NATIONALSTANDARD

OFTHEPEOPLESREPUBLICOFCHINA

CodeforDesignofHighVoltageElectricalInstallation(3-110kV)

GB50060-2008

ChiefDevelopmentDepartment:ChinaElectricityCouncil

ApprovalDepartment:MinistryofHousingandUrban-RuralDevelopment

ofthePeoplesRepublicofChina

ImplementationDate:June1,2009

Translatedby:SUNTHERTranslation&Solutions

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ChinaPlanningPress

Beijing2009

圖書在版編目(CIP)數據

高壓配電裝置設計規(guī)范

3kV~110kV:GB50060-2008:

英文中華人民共和國住房和城鄉(xiāng)建設部組織編譯

/.—

北京中國計劃出版社

:,2014.9

ISBN978-7-80242-996-3

中高電壓配電裝置設

Ⅰ.①3…Ⅱ.①…Ⅲ.①--

計規(guī)范英文

-Ⅳ.①TM642-65

中國版本圖書館數據核字第號

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