ordingtotherequirementsof"NoticeonPrintingtheDeveftructionStandardsin2010"(Jianbiao〔fTechnologyDesigningandConsultiExtensiveresearchandinvestigationwereconductedduringtheformuspecifications.ByrefermultiplereviewsandexaminThecodeconsistsof9chapterswiththemainabbreviations,telecommunicatioselection,cablerouteselection,installationofopticalcable,installationofcoppercable,protectionofoptical(copper)cablelines,statioTheprovisionsprintedinboldfontarecompulsoryandmMinistryofHousingandUrban-RuralDevelopmentisinchargeofttheexplanationofthecompulsoryprovisionswfspecifictechnicalcontents.DuringtheimplementationprocrecommendationsarewelcomeandcanbemailedtoCITC.(Address:Building#3,ZhuYuBusineCenter,No.9,SouthShoutiRoad,HaidianDistrict,Beijing,P.RTheChiefDevelopmentOrganization,ParticipatingDevelopmentOrganizations,ChiefDraftingStaff,andChiefExaminersChiefDevelopmentOrgaParticipatingDevelopmentOrgaGuangdongPlanningandDesigningInstituteofTelecommunicChiefDraftingStaff:YongtaoHeZhaoxuCuiWanhuChenGuiyueXieBiChiefExaminers:KaiLiangLiangShenRuilinChanWeiboZhangDongmeiHanQiHuangJianqiaXiaoyingLiuKejianYangPeng engineeringdesignandimprovetheengin1.0.2Thecodeisapplicabletonewconstruction,transmissionsystemsforoutdoorcablelineeng1.0.3Engineeringdesignsshallbeincompliancewiththeandpoliciesoneffectiveuseofresources,includalsoattachgreatimportancetotheprotectionofhistoricalrelics,naturalenvironmentandlandscape.1.0.4Duringtheconstructionofteoverallplanning,jointconstructioneffortsandresourcesharintherequirementsofbuildingaresource-conservingandenvironmental-friendlysociety.1.0.5Theengineeringdesignshallensurebyadvancedtechnology,cost-effectivenessandsecurityandreliability.Inadd1.0.6Theengineeringdesignshtheexistinginfrastructureandequipmentofandequipmentselectionshallbebasedonthenetwobothmid-termandlong-termdemandanddevelopmentob1.0.7TheseismicperformanceofthecommunicationsnetworkshaltelecommunicationcablelineconstructioninregionswhfortificationisrequicomplywiththenationalactiverelevAllDielectricSelfSupportPolarizationModeDis3.1TelecommunicationCableLineNetworkArc3.1.1Telecommunicationcalinesandaccesslines,usingtraLongdistancelinesnodeFigure3.1.1Referencemodelforcommunication3.1.2Theaccessnetworkpdropwires,usingtransmissionmediasuchaspointUserdroppointFigure3.1.2Structureofaccessnetwork3.2.1Designofopticalcablelinenetworkshallcomplywiththefo1Opticalcablelinesshallbesafeand2Inadditiontosupportthecommunitheopticalcablelinenetworkshallalsoconsiderlong-termbusinessdemandnetworkingtechnologyinordertodetermineconstructio3Thenumberoffibersforlongdistanceopticalcablesshallwhilelocalnetworksandaccessnetworksshallbeconfiguredbaredundancyforpotentialde4Designofopticalcablelinesforaccessnetworksshallbeconducteduponthebasisofdistributionofserviceaccesspoints,natureofsubscribers,developmentquantity,density,geographicalgeographicalenvironment,ductandpoleresources,capacityofofbroadbandopticalaccessnetworkswhilstselectingappropriaterouting,topologyandfibdistributionpatterns.Thiswo3.2.2Whileconstructingnewopticalcable(copper)lines,requirementsforcosharingshallbetakenintplaceswhereductmethodsareno3.2.4Ductordirectlyburiedmethodsshouldbeadoptareas,whileaerialmethodsmayalsobeappliedaccordconditionsofeconomicandsocialdevelopment.3.2.5Aerialmethodsmaybeappliedunderthefollowingconditions:buriedmethodscannotguarante2Inareaswhereothforconstruction,ownersoft3Inareaswhereotherlayingmethodscannotbeadoptedduetoreasoenvironmentandcult5Inareaswherethegroundsurfaceissi6Inareaswhereconstructioncostsofductordirectlyburiedmethodsaretoohigcanguaranteethesafetyoft1Directionaldrillingorunderwateropticalcconditions.Peractualsituations,structureofopti2Aerialmethodsmaybeadoptedinsteadofunderwaterlayingtoensuresafetyofopticalcables.Thishappensincaseswhereriverbedisunstablesiltingchangesplanningexistsalongtheriverrofhighspeedaccesstechnologyashallbeconstructedbasedonthecapacityoflocalswitchingscopeofuserdemand,outgoingdirectionofthecables,routingaswellasdistributionareaofthe3.2.9Thedesignofthecoppercablelinenetwork1Shallgivefullconsiderationtothedevelopmentofcommunanalyzethenecessityofcablenetworkconstruction,andstrictlycontrolthecoveraoverallcommunicationsplanning,consideringtheneedtomeetrequire3Shallconsidertheintegrityofthe4Ductlayingmethod5Thedesignofprimarycablesforgeographiesandtimeframe.Technicalmeasuresforsurouting,capacity,pointofpairsdiminishingandconstructionmethodsshouldbeadoptedsothatthcablescanconstituteanetworkthatcanschedule/lexibly,offerhighinvestmentaswellasfacilitatingfuturedevelopment,operation,andmanag3.2.10Thecoppercablee3.2.12Thedistributionofmethods,supplementedbyfeed-throughandfreedistributionandshouldnotusemCrossconnectionsshoulThedirectserviceareasdistribution.Freedistoriginalexistingcablelines,ifnotmuchadjustmentisneeded,theoriginaldistributionmethod3.2.13Multipleconnectiadoptcrossconnectingmet3.2.14TheutilizationrateofeachcabTelephoneswitchingoffice-crossTelephoneswitchingoffice-terminaldistri3.2.15Thecablepairsshouldnotdeclinetoofreq3Inareaswheretheductandpiperesource2.16Thecapacityofdistributionequipmentmaybechosenaccordingtofinallrquantitymultipliedby1.2to1.5,combinedwith3.2.17Thepartitionofcablecrossconnectionareashallonlytheadministrationsectionsofcommtheoriginalcrossconnecticables.Thescopeofdistributionareasshould3.2.18Thearrangementofcable4Optical,Copper4.1.2Theconfigurationofthenumberredundancyrequirements,thefuturesystemtypeexpected,thenumberoftransnissinetworkreliability,developmentofnewservices,structureofopticalcables,resourcesharingofoptiBasedontheapplicashouldbeadoptedtomeetspecialmicroben4.1.4Thecapacityofcablesshallbebasedonselectionofappropriatecables,considistributionofusersanduserdemathepairutilization4.1.5Multi-coreincreasethenumberofpairsinoneduct.4.2.1Opticalcablessstructureorotherbetterstructureopposedtonotmixedtypes.4.2.2Opticalcarequirements,inalightningdisturbanceorhighvoltageharmseriousregion,non-opticalcablesmaybechoseninareaswherelightni4.2.3Thesheathstructureofoplayingmethodsandprotectivemeasures,andsh1Directlyburiedarmoredlayer+PEoutersheaths2Opticalcablesprotected4Underwateropticalcablesshouldadoptthemoistureproo6Anti-termiteopticalcablesshouldad4.2.4Themechanicalpropertiesofopticalcablesshallbeinaccoundershort-termtensionforceexpectunderlong-termtensionforceexpecDuctandnon-self-supportingaeNote:Greferstotheweightofopticalcablesperkilometer.1Insulationlayertypeshallbeadoptedacco2Aluminumandplasticcomposit4Thediameterofductcablesshallbesuit5Theworkingenvironmenttemperatureofallplawhilstspecialneedshallbeconsideredperactualworkingenvironmentwhentemperatwithoutouter一一一一一一一一一一一一一一一一一一一一一一4.3.2Thetypesofthecablesinengineeringdesignshouldnotbetoobeappliedtoaerialandwall-4.3.4Aerialcablesshouldnorspecialcablesshalladopttheunderg4.3.5Theundergrnotsuitableforbuildingducts,theburiedmethodcanbeadopted.Taddingprotectivepipesmayalsobeadoptedaccordingtoactua4.3.6Accordingtospecificprojecdistributionmethod,andshallbegraduallyinco4.3.7Non-filledprimarycablesshalladoptinflatingmaintenanceandinstall1IfthesparecapacityoftheoriginalODFintheequipmenewODFcannotbeconfigu2ThecapacityofnewlyconfiguredODFshallbeinlinewiththopticalcables.TheboundarydimensionandcolorofthenewODFshouldbeconsoriginalequipment.Terminaltailfibersshallbeoft4Thecapacityofopticalfiberterminaldevicesshallmatchthenumberoffi4.4.2Theconfigurationofopticalcablecrossprotecting,terminating,splicing,andschedulingopticalthemaximumdemandofthefinalplanning,andshalcabinetsandthedemandforcoiling.Theinstshallbereservedwhennecengineeringdesignmandateandoverallplanningofcommunicatishallensurequalityofcommunications,safetyandreliability,networkswhilstfacilitatingconstructionandmain5.1.2Pertheexistingterrain,buildinoflineroutingshallgivefullconsiincludingcity,industrialandminingconstructions,railways,highways,shipping,watelong-distancepipes,andlanduseetc.5.1.3Incompliancewiththemainroutingdikeepasstraightaspospossiblechemicalcorrosionsandmechanicalda5.1.4Theroutingrelativelyflatwithlimitedearthworflow,goafandKarstsurfacecollapse,groundsubsidence,groundfissureburial,winderosion,salhumanbehaviors.Inaddition,theroutingshallalsoavoidlakes,swampondsandditchesasmuchaspossible.Inareaswithmanyobstacles,obsreasonablyandshouldnotimportunelWhennecessary,linesshalltakeeffectiveprotectionmeasuresconsidetheimpactsonlocalconstructionplanningsha5.1.9Theselectionoflineroutingshallconsiderthepringeneralwithintheconstructionregions,inordertominimizedisturbanceandd5.1.10Consideringtheinfluenceofhighvoltage,lineroutingshouldvulnerabletolightningandthunderingduetothestrongele5.1.11Theextensionofoptical(copper)cablenetworksshallconsiderthesystemandgiveprioritydeployunderwatercableswhilstconsdeviatetoofar.However,priorityshallbeensuringsafetyoftheunderwaterroutes,andpartialdeviationcanbeanopt5.2.2Toensuresecurityastoppriority,directioopticalcablelinesacr5.2.3Whenopticalcableliupstreamofthereservoirandthelayingheightalongthereservoirshallexceedthehighestwaterstoragefundergroundpipelinereducetheinterfer5.3.2Thecapacityofthenewductsandtakefullaccountoftheutilizationa5.3.3Theroutingselectionofthecablelineconjunctionwiththeprimarycablelineroutingand/cabletexistingfacilitiestoensur5.3.4Ifcablelinesinevitablygothroughareasaprotectivemeasuresshallbetakenandtheuseofmetalprotectionsheathcablesshouldbea5.3.5Ifthecableroutinginevitablyapproachesrailwaysareinparallel6.1.1Opticalcalocationstoensurethatthbeadoptedpertheactualconditimetalprotectionsheathoftheburiedopticalcablesisinsulated.6.1.3Theminimuminstallationcurvatureradiusofopti6.1.4Duringinstallation,overlapping,increaseofcablelengthandreservedlengthofopticalcablescanbedeterminedperactualengineeringpractices,accordingtospecificat6.1.5Thediameterofthecablesthroughvarioustypesofpipesshouldnotbemorethan90%ofthetubediameter.Thenozzleshallbesealedtig6.1.6Opticalcablesshallbearclearandpmaintenance.Inadditiontocharactcables,hangingsignsshallbeaddedtoductan6.2InstallationRequir6.2.1Theinstallationofdirectlyburiedcablesbuiltinthefutureorgroundcanbeexcavatedforconstruction.ArSuburbs,townsandvillCrossingrailways(fromtherailwaybedsurface),highNotes:1Designdepthofsideditchesshouldbeconsistentwiththoserman-madeslottedstonesideditchesma2nstoneandhalfstonercables.Thedepthofopticatheengineeringdes6.2.3Opticalcablesmayb6.2.4Thelayingofopticalcablelinemarkstonesshallmeetwherelocatingopticfburiedcablesinsteadofordinarymarkstones.5)Otherlocationswheremarkstonesneedtobeburi2Whenfixedsignsareusedtomarktheopticalcableposi3Theopticalcablemarkstonesshouldbeburiedontopofthecablespositionsofwhichsinaccordancewiththefollowingr1)Markstonesforjointsareburiedalong2)Markstonesforturnpointsareburiedattheintersectionofopticalcab3)Markstonesareburiedinplaceswheremovingisnoteasyorwhe4)Ifburyingpositionsarenoteasytochoose,auxiliarymarkersinthevicinitymaybeaddedandtrianglecalibrationmethodcanbeusedtodete6.2.5Thedirectlyburiedopticalcablesplandgeologicallysolidareasasopposedtothesitcoverplatesorothersuitable6.2.6Whencrossingrailways,lightraipipeswhilstensuringsafetyofooutofbothsidesofthesubgradedrainageditchandthedInnerdiameterofpipesshallmeettherequirementsofsubpipesinsthan2inmostcases,isdeterminedbyth6.2.7Opticalcablelinesshcrossingthetractorsploughroadgroundbreaki6.2.8Opticalcablelinemayusethroughgroundbreakingpossible6.2.9Passingthroubagsorotheroptionalmeasuresforprotectopticalcablesonslopeswithanglstreams,opticalcablesshallretainingwallsorothermeasuresperspecificcircum6.2.12Forcablelayinginupandburiedshallmeetspecificrequfromerosionandensurethesreaches0.8morabove,ridgesorprotectionslopess6.2.13Effectsfrommechanicaldamages,vibrationsandtemperatuwhenlayingopticalcablesonbridges,andcorrespondingprotectionmeasuress6.2.14TheminimumclearancebetaccordancewithspecificationsdescribedinWatersupplypipes(di一一一一一一一tes:1Theclearancebetweendirectlyburiedoptical(copper)cablerpipes,gaspipesandoilpipelin2Theprotectionagainstlightningandthunderingshallbeconsideredforpoles,guywires,is4Whengoingthroughvariousundergroundpipelinesdepthofwhichissimilartothatofshouldbelaidbelowthepipelinesandprotectivemeasuress5Iftheclearancedoesnotmeettherequirementslistedintheabovetable,effectiveprotectionconsultationwithrele6.3.1Theductoccupiedbyductopticalcablesmaypreferproperlocationsnearbothsidegroup.Theductoccupiedbyopticalcablesineachadjaconsistent.Whenthelocationoftheductneedstochaandshouldavoidtransferringfromonesideofthetu6.3.2Plasticsubpipesshallbeusedtoprotectopticallaidinplasticpipes,largordertoincreasetheutilizationrateoftheducts.6.3.3Installationofsubpipesshallbeinaccordancewiththefollowingreq2Thequantityofsubpipesneedstobedetermengineeringneeds,withthetotalequivalentdiameterofthesubpipesnotgre3Thesubpipesinoneductshallbeinst4Thesubpipesshallextendfr5Pipeendsshalladoptwaterproofsealingifsubpipesarenot6.3.4Opticalcableclosureprotectiontraysorotherbearingmethodsshouldbeadopted.pipes,shallbemarkedwithclearidentificationsignsorcableprojectswithotherlargediaconsiderationofvarivibrations,structuraldeformationcausedbyseveretemperareas.DivisionofloadzonesshallbedeterminedaccordingtothemeteorologicalcondMeteorologicalconditio一一一standardsshallbeupgraded6.4.3Aerialopticalcablesmaybeusrelativelyeven.Foroverwewherelargespanterrains,sandstormsandhazardouswindsareprevalen6.4.4LayingofaeriunderthecurrentprofessionalstandardYD5148DesignSpecifica(Copper)CableCommunicationEngineering.Thepoleintensityshallbecheckedensurearchitecturesafetywhenusingexistingpolestohang6.4.6Aerialopticalcablesshouldadoptsuspensionwiresmaybeinstal6.4.7Installationofsuspensionwiresshallmeetthefollowingrequirements:differencesoftheinstallationregions,optAsageneralpractice,steelgalvanizedstrandswith7/2)Ingeneral,thecommonlyusedpolespanshaspecificationsoutlinedin2Theinstallationandreinforcementofsuspensionwiresshallbe1)Suspensionwiresmaybeinstalledwithbolt(woodenpole),suspensionarmshook(cementpole)orthreeholessingle2)Installationpositionsofsuspensionwiresshallconsidthepole,andensurethatafterhangingthecables,totherfacilitiesundercircumstancesoftemperatureandloadchangesshallding,dischargfaccordingtorelevantrequi一一Highpolesareusedasreference.FHorizontaldistancefromcaNote:Innarrowareas,whenparallellayingofaeriabetweenthetwolinescannotmeettheaboverequirements,polescanbeshared.Alternatively,otheeablelinescanbeuseda2Theheightofaer一一一一一3TheminimumverticalclearanceTheminimumverticalclearan一一一一一一一6.4.9Opticalcablejointclosuremaybei6.4.10Opticalcablesuspensionwiressh6.4.11Opticalcablesshallavoidpoint.Steelpipesforprotectionshallbeusedfortheopticalcablesfr6.4.12Whencrossingbelowaerialpowerlines,opticalcableshallbewrappedbfthesuspensionwirecrossoverstoensureelectricdiscon6.4.13Measures6.4.14Theinstallationofwall-mountopticalcablesshallmeetthefollowingrequire2Theheightofwall-mountopticalcablesfromthegroundsha3Steelstandswirehanging6.5.1Selectionofunderwatercablesshallbeinaccordancewiththefollowi1Forregularriversorseasonalrivethan150mandregu2Forprimarynavigableriversorriverswithunstabler3Forseverely500m,reinforcedsteelwirearmored4Throughstaticwaterareassuchasreservoaccordingtovariouselementsincludingnavigationconditions,operationofwaterengineering,5Canensurethesafetyandnotinfluencedcablesmaybeusedtogoacrosstheriversthathavestableriverbeds,lowvel6Ifthebedsoilandriverwidthcanmeetrdirectionaldrillingconstructionmethodmayalsobeconsidered.Undersuchcirc6.5.2Crossingpositionsofunderwatercablesshallchoosvelocityisacceptableerosionandslopesaremo1Areaswhereriversturn,bendorconfluence,wherewaterwaysfretherearedangeroussho2Areaswherewaterflowisunstablwhereriverbankssufferfromsevere4Placeswherewideninganddredgingoftheriverarebeingplanned,orwhereriverconditions6Waterareaswith7Placeswhereotherunderwaterpipelinesexistnearb8Placesthatareclosetowharfs,harbors,ferrieswateroperationsect6.5.3Cablejointsinwatershallbeavoidedforunderwatercables.6.5.4Forextra-largeriversandimportantnavigationriverroutes,underwateropticusemaybesetupaccorunderwateropticalcablesshallbeswitchedeithermaybeswitchedandbranchclosures,orautomatically.Toachievethis,underwatercableterminalro6.5.5Thedepthofunderwateropticalcablesshallbeconditions,soiltypeontheriverbedandot1Thedepthoftheriverbedwithwatershallcomplywiththefollowingsoft,andshallbeburdirectlylaidontheriverbottomwithoutbreservedbasedonthefutureneeds.4)Forthedredgingsectionsaspartofaplan,opticalcablesshalldepth,ortemporarilybereservedwithappropriatelengthinord5)Forstonyandsemirockyriverbedprotectionmeasuresshallbea2Thedepthforriverbanksandbeachshallmeetthefollgreaterthanusual,andlandingslopeofopticalcablesshouldbelewaterconservancy,dikes,maritimeandotherrelevantactivities,whenanchotakentodeterminetheappropriateburyingdepth.6.5.6Thelayinglengthofunderwateropticalcablesshal1Forriverwithdikes,underwafromthedikes.Forriverswithoutdikes,theextendingofunderwatercablesfromthebanksshouldb2Forriversorbanksmaybeplannedforwideningorchange,underwater50mfromtheembankment4Thelengthsoftheactiveandstandbyunderwatercablesshoisnecessary,transmissionrequir6.5.7ThelengthoftheunderwateropticalcablesthatgoacrosstherivcalculatedbasedonTable6.5.7-1orEquation6.5.7respectively,acL?——thelengthmeasuredbetweenthetwoterminaL?——theincreasedlengthofterminalfixing,crosslaying,banksandjointL?——theincreasedlengthforvarL?——theincreasedlengthforlayingplL?——theincreasedlengthforunderwaterverticalradianwhichshallbeca accordingtotherivermorphologyandthesectionreviewoL?——installationallowance,determinedaccordingtodiftechnologies(m).8%-10%ofwatersurfacewidthfortuglaying,3%-5%oflayingaccordingtoactualsituations,whilstallowanTheriverwidthislesTheriverwidthis200m-500m,withrapidflow,lTheriverwidthisgreaNote:Ingeneralpractice,thelengthofcablesshallbedetermineduponcomprehensiveconsiderationstechnologiesandequipmentadoNote:Lsinthetableindicatesthechordlengthofplanarradian,findicatestheverticalheightfromtheverteindicatesthehighchor6.5.8Thebestconstructiontimeandfeasibleinstallationmethodofunengineeringdesignshdata.Theinstallatiocables,hydrologicalandgeologicalconditions,constructiontechnologies,equipmentandmanageequipmentmaybeavailablemethods.Forrockyriverbeds,methodofblastingtdependingontheactualci6.5.9Installationpositionsofopticalreference,laidbyarctowardstheupstream.Scopeoftheactwhich