《生物質(zhì)鍋爐供熱成型燃料工程設(shè)計規(guī)范》(NB-T 34062-2018)英文版_第1頁
《生物質(zhì)鍋爐供熱成型燃料工程設(shè)計規(guī)范》(NB-T 34062-2018)英文版_第2頁
《生物質(zhì)鍋爐供熱成型燃料工程設(shè)計規(guī)范》(NB-T 34062-2018)英文版_第3頁
《生物質(zhì)鍋爐供熱成型燃料工程設(shè)計規(guī)范》(NB-T 34062-2018)英文版_第4頁
《生物質(zhì)鍋爐供熱成型燃料工程設(shè)計規(guī)范》(NB-T 34062-2018)英文版_第5頁
已閱讀5頁,還剩30頁未讀, 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說明:本文檔由用戶提供并上傳,收益歸屬內(nèi)容提供方,若內(nèi)容存在侵權(quán),請進(jìn)行舉報或認(rèn)領(lǐng)

文檔簡介

ICS27.010

F13NB

Recordnumber:J2491-2018

EnergySectorStandardofthePeople’sRepublicofChina

PNB/T34062-2018

CodeforDesignofDensifiedBiofuelProjectsforHeatingBoilers

Issuedate:2018-04-03Implementationdate:2018-07-01

IssuedbytheNationalEnergyAdministration

EnergySectorStandardofthePeople’sRepublicofChina

CodeforDesignofDensifiedBiofuelProjectsforHeatingBoilers

NB/T34062-2018

Editor-in-chief:ChinaRenewableEnergyEngineeringInstitute

ApprovalDepartment:NationalEnergyAdministration

ImplementationDate:July1,2018

ChinaWater&PowerPress

2018Beijing

NB/T34062-2018

NationalEnergyAdministration

Announcement

No.42018

Accordingtotherelevantprovisionsofthe"NoticeoftheNationalEnergyAdministrationonPrintingand

Distributingthe"MeasuresforStandardizationManagementintheEnergySector(Trial)"andImplementation

Rules"(NationalEnergyAdministrationTechnology(2009)No.52),afterexamination,theNationalEnergy

Administrationapproved168industrystandards,including"GuidelinesfortheEvaluationofVibrationStatus

ofWindTurbines",including56energystandards(NB)and112powerstandards(DL),whicharenowissued.

Annex:IndustryStandardCatalog

NationalEnergyAdministration

2018-04-03

Annex:

IndustryStandardCatalog

Numberusin

NumStandardReplacedApprovalImplementatio

Standardnamegnationalsta

berencodingstandarddatendate

ndard

CodeforDesignof

NB/TDensifiedBiofuel

242018-04-032018-07-01

34062-2018ProjectsforHeating

Boilers

NB/T34062-2018

Foreword

Accordingtotherequirementsofthe“NoticeoftheNationalEnergyAdministrationontheIssuanceof

theSecondBatchin2014IndustryStandardsDevelopment(Revision)Plan”(GuonengScienceand

Technology(2015)No.12),afterextensiveinvestigationandresearch,thecodepreparationteamcarefully

summeduppracticalexperienceandformulatedthiscodebasedonextensiveconsultation.

Themaintechnicalcontentsofthiscodeare:basicregulations,processdesign,generallayout,civil

design,electricalengineering,watersupplyanddrainageandheating,fireprotection,environmentalprotection

andenergysaving,laborsafetyandindustrialhygiene.

ThisstandardismanagedbytheNationalEnergyAdministrationandproposedbytheChinaRenewable

EnergyEngineeringInstituteresponsiblefordailymanagement,andtheChinaRenewableEnergyEngineering

Instituteisresponsiblefortheexplanationofspecifictechnicalcontent.Ifyouhavecommentsandsuggestions

duringtheimplementationofthisstandard,pleasesendthemtotheChinaRenewableEnergyEngineering

Institute(Address:No.2,LiupukangNorthStreet,XichengDistrict,Beijing,100120).

Editor-in-chiefofthiscode:AcademyofAgriculturalPlanningandEngineering

NorthwestEngineeringCorporationLimited

Maindraftersofthiscode:ZHAOLixin,MENGHaibo,HUOLili,YAOZonglu

CONGHongbin,ZHAOKai,YUANYanwen,FENGJing

LUOJuan,RENYawei,LILijie,DAIChen

WANGGuan,FENGTaokang,BENXian,ZHANGPeng

Mainreviewersofthiscode:YIYuechun,XIEHongwen,ZHOUFengqi,JIAZhenhang

SHIDianlin,LINCong,YUGuosheng,YANGXiaoliang

SHIShutian,TANGYongjun,TIANXiaoxia,QIUJinsheng

LIUQijun,LIShuangjiang,LIUYuzhuo,HUXiaofeng

GAOLijuan,LIShisheng

NB/T34062-2018

1.GeneralProvisions

1.0.1Inordertostandardizethedesigncontentanddepthofdensifiedbiofuelprojectsforheatingboilers,

andensurethequalityofsuchprojects,thiscodewasformulated.

1.0.2Thiscodeisapplicabletonew,rebuiltandexpandeddensifiedbiofuelprojectsforheatingboilerswith

annualproductioncapacityof10,000tonsormore(≥10,000tons).

1.0.3Inadditiontothiscode,thedesignofdensifiedbiofuelprojectsforheatingboilersshallalsocomply

withtheregulationsincurrentrelevantnationalstandards.

1

NB/T34062-2018

2.BasicRequirements

2.0.1Projectconstructionshallcomplywithnationalpoliciesandlocalurbanandruralconstructionplanning

requirements.

2.0.2Theengineeringsiteshallhavegoodexternalconditions,includingtransport,powersupply,watersupply,

communicationandterrain,andshallbelocatedinadownwindorcrosswinddirectionoftheannualmaximum

frequencywinddirectioninresidentialareas.

2.0.3Theengineeringdesignscaleshallconsiderthedistributionofbiomassrawmaterials,resources,storage,

transport,andprojectconstruction,aswellasthedemandsofheatingboilers.

2.0.4Thesafetydistancefrominflammablesandexplosivesproductionplants,warehouses,high-voltage

transmissionlines,civilbuildings,etc.shallbefullyconsidered,andcomplywiththeregulationsofthecurrent

nationalstandard''CodeforFireProtectionDesignofBuildings''GB50016.

2.0.5Engineeringconstructionshallbeconducivetoecologyandenvironmentalprotection,andachieveclean

production.

2

NB/T34062-2018

3.ProcessDesign

3.1GeneralRequirement

3.1.1Theprocessdesignshallmeettherequirementsofdensifiedbiofuelproductionforheatingboilers,

productqualityandoutput.

3.1.2Theprocessproceduresincluderawmaterialqualityinspectionandstorage,rawmaterialpretreatment,

compressionforming,dedusting,cooling,packaging,warehousing,factoryinspection,etc.,andshallcomply

withrelevantrequirementsforenvironmentalprotectionandenergyconservation.

3.1.3Theselectionofmainequipmentshallconsiderthefollowingfactors:

1Maintechnicalparameters

2Productioncapacity

3Productquality

4Matchability

5Energyconsumption

6Lifeofwearingparts

7Dustandnoise

8Operationandmaintenance

3.1.4Advancedprocessproceduresandequipmentshouldbeadopted,theequipmentlayoutshouldbe

compactandreasonable,andthereshouldbeenoughspaceforoperation,maintenanceandmanagement.

3.2RawMaterialQualityInspectionandStorage

3.2.1Materialmeasurementandqualityinspectionfacilitiesandequipmentshallbeinstalled.

3.2.2Thecapacityofrawmaterialstoragefacilitiesshallmeettheproductionneedsofnotlessthan7days.

3.2.3Therawmaterialstorageshouldadoptrawmaterialshedsorrawmaterialwarehouses,whichshould

ensureventilation,fireprevention,rainandsnowprevention,dedustingandsmoothtransportofrawmaterials.

3.3RawMaterialPretreatment

3.3.1Rawmaterialpretreatmentshouldincludeimpuritycleaning,crushing,drying,mixing,etc.,andcanbe

appropriatelyincreasedordecreasedaccordingtotheneedsoftheproductionprocess.

3.3.2Rawmaterialimpuritycleaningfacilitiesshouldbeestablished.

3.3.3Theproductioncapacityofthecrushingprocessshallbegreaterthan1.3times(>1.3×)theforming

productioncapacity.

3

NB/T34062-2018

3.3.4Accordingtotheneedsoftheformingprocess,aftertherawmaterialsarecrushed,mixingequipmentcan

beutilizedbeforedryingandcompressionforming.

3.4CompressionForming

3.4.1Thestoragebinshouldbesetinfrontoftheformingmachine,andthestoragecapacityofthestoragebin

shallmeetthecontinuousproductionneedsoftheformingequipment.

3.4.2Theformingequipmentshallcomplywiththeprovisionsofthecurrentindustrystandard"Technical

conditionsfordensifiedbiofuelmoldingequipment"NY/T1882,andshallensureproductqualityandcapacity

requirements.

3.4.3Thespareformingequipmentshouldbereasonablyconfiguredaccordingtotheneedsoftheproduction

capacity.

3.4.4Theformingequipmentshallbearrangedreasonably,anditshouldbearrangedinparallelwhenusing

multiplesetsofequipment.

3.5Dedusting

3.5.1Theproductionworkshopshallbeequippedwithadedustingsystem,andthedustconcentrationofthe

workshopshallcomplywiththecurrentnationalstandard"OccupationalExposureLimitsofHazardous

FactorsintheWorkplace"GBZ2,andtheemissionstandardshallcomplywiththecurrentnationalstandard

"DesignHygieneStandardsforIndustrialEnterprises"GBZ1and"IntegratedEmissionStandardofAir

Pollutants"GB16297.

3.5.2Thedust-dispersingprocessequipmentshouldbeclosed,andthedust-proneareashouldbeequipped

withasuctionhoodtocapturethedust.

3.5.3Thededustingsystemshalltakemeasurestopreventsecondarypollutionofdust.

3.6Cooling,PackagingandProductInspection

3.6.1Aircoolingorothercoolingmethodsshallbeselectedaccordingtoprocessrequirements.

3.6.2Itisadvisabletoinstallpackagingequipmentafterthemeasuringprocess,andalsoconfigurebulk

storagetanks.

3.6.3Theproductionfacilityshouldbeequippedwithaproducttestinglaboratoryandrelevanttesting

equipment.

4

NB/T34062-2018

4GeneralLayout

4.0.1Thegenerallayoutshallmeetthefollowingrequirements:

1Designmissionandrequirementsoftheurbanandruralconstructionplanningdepartmentforthe

selectedplantsite.

2Theprovisionsofthecurrentnationalstandard"DesignCodeofIndustrialCorporationSitePlanning"

GB50187.

3Designedaccordingtotheplannedscale,takingintoaccountfollow-upprojectsandunifiedplan

planning.

4Thelayoutofthemainandauxiliarybuildingsisreasonable,theproductionlineiscompactand

standardized,andtheflowofpeopleandlogisticsareseparated.

5Onthepremiseofmeetingproductionrequirements,thelayoutiscompactandreasonable,savingland

andreducingtheamountofrequiredearthandstone.

6Comprehensiveconsiderationofbuildinglayout,transport,roads,powersupplylines,watersupply

anddrainagepipelines,industrialpipelines,fireprotection,greening,environmentalprotection,etc.

4.0.2Accordingtotheproductionprocessandfunction,theplantareashouldbedividedintoofficearea,raw

materialarea,productionareaandfinishedproductarea,andeachareashouldbecloselyconnectedand

properlyseparated.

4.0.3Thebuildinglayoutshallmeetthefollowingrequirements:

1Thebuildingspacingmeetstherequirementsoffireprotection.

2Thebuildinghasgoodnaturallightingandventilationconditions.

3Theimpactofproductionnoiseanddustontheoverallenvironmentisconsidered.

4.0.4Theplanttrafficsystemshallbedesignedaccordingtotheflowofpeople,logisticslinesandthetotal

planttraffic.Theroadsintheplantshallmeetthefollowingrequirements:

1Theroadsintheplantareashallbesmoothtofacilitatethepassageofvehicles.Theroadsforthe

transportofrawmaterials,finishedproductsandmainpeopleshouldusetwo-waylanes.

2Accordingtourbanandruralroadplanningprinciples,andtheprincipleofdivisionofpeopleand

material,thefactoryentrancesandexitsshallbereasonablyset,andthereshallbenolessthan2entrancesand

exits.

3Fireexitsandemergencyexitsshallbesetupwithobvioussigns.

4Theroadintheplantareashouldbehardenedpavement.

5

NB/T34062-2018

5CivilDesign

5.1GeneralRequirements

5.1.1Thespecificconditionsofproductionscale,site,materialsandconstructionshallbecomprehensively

considered,andcivildesignshallbecarriedoutinaccordancewiththeproductionprocess.

5.1.2Theclassificationoffirehazardstandardsforproductionandauxiliarybuildingsshallcomplywiththe

provisionsofthecurrentnationalstandard"CodeforFireProtectionDesignofBuildings"GB50016.

5.2ProductionBuildings

5.2.1Productionbuildingsshouldincluderawmaterialwarehouse,productionworkshop,finishedproduct

warehouse,etc.

5.2.2Productionbuildingsshallbearrangedinzones,andonthepremiseofmeetingtherelevantrequirements

forfireprotectionandevacuation,localconjoineddesigncanbecarriedout.

5.2.3Theopening,spanandheightoftheproductionbuildingshallbedeterminedaccordingtotheproduction

scaleandprocesslayout.

5.2.4Theindoorgroundelevationoftheproductionbuildingshallnotbelowerthantheoutdoorgrounddesign

elevation,andnotlessthan0.3m(≥0.3m).

5.2.5Productionbuildingsshouldbeequippedwithlargeequipmenttransportchannels.

5.2.6Theflooroftheproductionbuildingshallbehardened,flat,wear-resistant,moisture-proof,andstrong

enoughtomeettheproductionneeds.

5.2.7Theliveloadontheflooroftheproductionbuildingcanbecalculatedaccordingtothelocalloadand

concentratedloadcausedbyheavyobjectsusedinproduction,installationandmaintenance,stackingmaterials,

transportvehicles,etc.

5.2.8Aplatformforloadingandunloadingmaterialsandawningshallbeinstalledattheexitofthefinished

productwarehouse.

5.3AccessoryBuildings

5.3.1Theproductionworkshopshallbeequippedwithacontrolroomaccordingtotheneedsoftheequipment,

anditslocationshallmeetthefollowingrequirements:

1Itisadjacenttotheproductionworkshop,andeasytoobserve,operateanddispatch.

2Ithasgoodventilationandlighting,andavoidsdirectsunlightandglare.

3Theimpactofvibrationissmall,andthenoiseshallnotbehigherthan70dB(≤70dB).

5.3.2Thedesignofthecontrolroomshallmeetthefollowingrequirements:

1ThefireresistancelevelshallnotbelowerthanClass2.

6

NB/T34062-2018

2Theindoorclearheightshallnotbelessthan3m(≥3m),andtheoverheadfloorshallbetreatedfor

fireprevention.

3Theindoortemperatureofthemicrocomputercontrolroomshallmeettherequirementsofthecurrent

nationalstandard"Industrial-processmeasurementandcontrolequipment-OperatingconditionsPart1:

Climaticconditions"GB/T17214.1.

4Cablemaintenanceisconvenient.

5Thefloorshoulduseinsulationmaterialandanti-staticmeasuresshouldbetaken.

5.3.3Thetestingroomshallmeetthetestingneedsofrawmaterialsandfinishedproducts.

5.3.4Theofficespaceshallbekeptatanappropriatedistancefromtheproductionareatoavoidtheeffects

ofnoise,vibrationanddust.

5.3.5Anindependentelectromechanicalequipmentmaintenanceroomandasparepartsstorageroomshall

bemaintainedintheplantarea.

7

NB/T34062-2018

6ElectricalEngineering

6.1LoadandPowerSupply

6.1.1Theproductionpowerloadshallbeathree-levelload.Itisadvisabletousethedemandcoefficient

methodtocalculatethepowerload.

6.1.2Thelow-voltagedistributioncircuitshallbedividedaccordingtotheproductionworkshop,production

line,worksection,processorunit.

6.1.3Drying,compressionforming,anddedustingequipmentcanbesettoutilizeamanuallyswitchedstandby

circuit.

6.1.4Thelightingpowersupplyintheproductionworkshopshouldbepoweredbyaspeciallinefroma

low-voltagedistributionsystem.Whensharedwiththepowerdistribution,amainlightingswitchandpower

distributioncabinetseparatefromthepowerdistributionshouldbeinstalledafterenteringtheproduction

workshop.

6.2PowerDistributionandLighting

6.2.1Theprotectionlevelofmotorsandelectricalappliancesshallmeettheregulationsofthecurrentnational

standard''DegreesofProtectionProvidedbytheIntegralDesignofRotatingElectricalMachines(IPcode)

-Classification''GB/T4942.1.

6.2.2Thesocketsintheproductionworkshopshouldadoptindependentcircuitpowerdistributionandbe

equippedwithcurrentprotectiondeviceswithexplosion-prooffunctions.

6.2.3Whenwiring,thefillingcoefficientofthecableincabletrays,ductsandconduitsshouldnotbelarger

than40%.Theinfluenceoftemperatureriseonthesafecarryingcapacityandtheconvenienceofinstallation

andmaintenanceshallbeconsidered.

6.2.4Theproductionworkshopshallhaveproductionlighting,dutylightingandemergencylighting,andthe

firepumproomandproductionmonitoringareashallhavebackuplighting.

6.2.5Efficientandeasy-to-maintaindust-proofandexplosion-prooflampsshallbeselected.

6.3LightingProtectionandGroundingDesign

6.3.1Variousgroundingprotectionintheproductionworkshopshouldsharethegroundingdevice,andthe

groundingresistanceshallnotbelargerthan1Ω;thefactoryelectricalsystemshouldadopttheTN-Sor

TN-C-Sgroundingprotectionsystem.

6.3.2Anequipotentialconnectionsystemshallbeusedintheproductionworkshop.Measuresshouldbetaken

topreventelectricshockinareasoutsidetheequipotentialactionarea.

6.3.3Theincomingswitchofthedryinganddedustinglinkshouldbeequippedwithanalarmandleakage

protectiondevicewithdelayedaction.

8

NB/T34062-2018

7.WaterSupplyandDrainageandHeating

7.1WaterSupply

7.1.1Twowatersupplymainsshallbeinstalledintheplantarea,oneofwhichshallmeettheneedsofthe

wholeplantproductionanddomesticwater,andtheotherofwhichshallmeetthefirewaterneedsofthewhole

plant.

7.1.2Theproductionwaterconsumptionshouldbe1.10timesto1.15times(1.10-1.15×)thesumofthe

productionwaterconsumptionofeachprocess,andthewatersupplypipeintotheplantareashallbeequipped

withatotalmeteringdevice.

7.2Drainage

7.2.1Thedrainagesystemoftheplantareashalladoptrainandsewagediversion.Thedrainageshallcomply

withtheregulationsofthecurrentnationalstandard"CodeforOutdoorDrainageDesign"GB50014.

7.2.2Theroadsintheplantareashallhaveagooddrainagesystem.

7.3Heating

7.3.1Accordingtolocalclimaticconditions,aheatingsystemcanbeinstalledintheproductionworkshop,and

theindoortemperatureshallmeettheproductionrequirements.

7.3.2Theproductionworkshopshalladoptaheatdissipationdevicethatdoesnoteasilyaccumulatedust,is

easytoclean,andhasgoodcorrosionresistance.

7.4VentilationandAirConditioning

7.4.1Theventilationsystemshallcomplywiththeregulationsofthecurrentnationalstandard"Occupational

ExposureLimitsofHazardousFactorsintheWorkplace"GBZ2.

7.4.2Therawmaterialwarehouseandfinishedproductwarehousecanadoptnaturalventilationormechanical

ventilation.

7.4.3Whenthetemperatureintheproductionworkshopexceeds36℃,coolingmeasuresshallbetaken.

9

NB/T34062-2018

8FireProtection

8.0.1Thefirehazardlevelandfireresistancelevelofthemainbuildings(structures)shallcomplywiththe

regulationsofthecurrentnationalstandard"CodeforFireProtectionDesignofBuildings"GB50016.

8.0.2Inthegenerallayoutoffireprotection,thefirepartitions,fireseparationdistances,andfirepassagesof

themainbuildings(structures)shallcomplywiththeregulationsofthecurrentnationalstandard"Codefor

FireProtectionDesignofBuildings"GB50016.

8.0.3Thedistancefromthefurthestworkingplaceintheproductionworkshoptotheexternalexitshallmeet

thenationalfiresafetymanagementregulations,andthereshouldbenolessthan2entrancesandexits.

8.0.4Whentheprocessconditionspermit,appropriatefireseparationcanbecarriedoutinthefirepartition.

8.0.5Thefirewatersupplyshallbesetupwithindependentwatersource,andequippedwithafirestorage

tank,fireboosterpumpandotherfacilities.Thecapacityofthefirestoragetankshallbedeterminedaccording

tothesumoftheindoorandoutdoorfirewaterconsumptionduringthefireduration.Thefiredurationusedto

calculatethecapacityofthefirestoragetankshallbe3h.

8.0.6Thefirewatersupplynetworkshallformaringnetwork.Thewaterdeliverypipeforsupplyingwaterto

thering-shapedpipenetworkshallconsistofnolessthantwopipes.Ifonepipefails,thenthetotalcapacityof

theremainingpipesshallbesufficienttomeetthefirewaterdemand.

8.0.7Thearrangementofindoorandoutdoorfire-fightingequipmentshallcomplywiththeregulationsofthe

currentnationalstandard"CodeforFireProtectionDesignofBuildings"GB50016.

8.0.8Thedistributionboxofthewarehousewithfireriskshallbesetseparatelyandinstalledinthewarehouse

dutyroomoroutsidethewarehouse.Thewiringinthewarehouseshouldbelaidwithsteelpipes.

8.0.9Lightingdistributionlinesandcontrolcircuitsshouldbedividedaccordingtofirepartitions.

8.0.10Themainbuilding(structure)shallbeequippedwithfireevacuationindicationsignsandanautomatic

firealarmsystem.

8.0.11Dedustingpipesshalltakeexplosion-proofandpressure-reliefmeasures.

10

NB/T34062-2018

9EnvironmentalProtectionandEnergySaving

9.1EnvironmentalProtection

9.1.1Thedomesticsewageshallbedischargedafterreachingthestandardaftertreatment.

9.1.2Thenoiseintheplantareacomplieswiththeregulationsofthecurrentnationalstandard''Emission

StandardforIndustrialEnterprisesNoiseatBoundary''GB12348and''CodeforDesignofNoise

ControlinIndustrialEnterprises''GB/T50087.

9.1.3Variousexhaustemissionsintheproductionprocessshallmeetthenationalrelevantemission

requirements.

9.2EnergySaving

9.2.1ProductsprohibitedoreliminatedbytheStateshallnotbeused.

9.2.2Themotorenergyconsumptionoftheformingequipmentshallmeettheregulationsofthecurrent

nationalstandard''MinimumAllowableValuesofEnergyEfficiencyandEnergyEfficiencyGrades

forSmallandMediumThree-phaseAsynchronousMotors''GB18613.

9.2.3Theprocessdesignplanshallminimizethenumberofstart-stopsoftheproductionline,reducethe

no-loadoperationtime,andensuretheefficientandstableoperationoftheequipment.

11

NB/T34062-2018

10LaborSafetyandIndustrialHygiene

10.0.1Asafetyeducationroomandarestroomshallbesetupintheplantarea,andcomplywiththe

regulationsofthecurrentnationalstandard"HygienicstandardsfortheDesignofIndustrialEnterprises"GBZ

1.

10.0.2Thetransmissionandexposedrunningpartsshallbeequippedwithsafetyshieldsandothersafety

protectiondevices.Forthevisiblerunningpartsoftheequipment,protectivebafflesmustbeinstalled.

10.0.3Thepitmustbecoveredorfenced.

10.0.4Thehigh-altitudeoperationareashallbeequippedwithoperatingandmaintenanceplatformsand

railings,ortakeothersafetymeasures.

10.0.5Places,facilitiesandequipmentwheresafetyhazardsorpotentialsafetyrisksexistshallbeclearlyset

withsafetysignsandmarkings.Thesettingofsafetysignsandmarkingsshallcomplywiththeregulationsof

thecurrentnationalstandard"SafetySignsandGuidelinesfortheUse"GB2894and"SafetyColors"GB

2893.

10.0.6Thelightingintheplantareashallmeettheregulationsofthecurrentnationalstandard"Standardfor

LightingDesignofBuildings''GB50034.

12

NB/T34062-2018

ExplanationofWordinginthisCode

1Inordertofacilitatedifferenttreatmentintheimplementationoftheprovisionsofthiscode,termswith

differentdegreesofstrictnessareexplainedasfollows:

1)expressverystrictlyandisabsolutelynecessary:

use"must"forpositivewordsand"mustnot"fornegativewords.

2)expressstrictlyandshallbedoneundernormalcircumstances:

use"shall"forpositivewordsand"shallnot"or"maynot"fornegativewords.

3)expresssomechoiceandshallbethefirstprioritywhenconditionspermit:

use"should"forpositivewordsand"shouldnot"fornegativewords.

4)usetheword"may"toexpressthatyouhaveachoiceandcandoitundercertainconditions.

2Theprovisionthatitshallbeimplementedaccordingtootherrelevantstandardsisexpressedas:"shall

complywithregulationsof"or"shallbeimplementedaccordingto".

13

NB/T34062-2018

ListofQuotedStandards

"SafetyColor"GB2893

"SafetySignsandGuidelinesfortheUse"GB2894

"DegreesofProtectionProvidedbytheIntegralDesignofRotatingElectricalMachines(IPcode)

-Classification"GB/T4942.1

"EmissionStandardforIndustrialEnterprisesNoiseatBoundary"GB12348

"IntegratedEmissionStandardofAirPollutants"GB16297

"Industrial-pr

溫馨提示

  • 1. 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預(yù)覽,若沒有圖紙預(yù)覽就沒有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 人人文庫網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容,請與我們聯(lián)系,我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時也不承擔(dān)用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。

評論

0/150

提交評論