AsrequiredbytheMinistryofHousingandUrban-RuralDevelopmentinthe"N 'DevelopmentandRevisionPlanofNationalStandardsonEngineeringCon〔2010〕No.43),thiscodeisdevelopedbyCorporationjointlywithentitiesconcernedviaconductingextensiveandprofoundresearch,carefully summarizingtheapplicationanddevelopmentoftelec solicitingopinionsfromrelevantentitiesandexpertshomeandabroad.materialtest,cableroute,earthworks,overheadpolelineforoverheadcable,layinlineprotectionandpreservation,optical(electrical)cablecrossoptical(electrical)cablesplicing,optical(electrical)cablelead-inandtermination,opttest,preparationofas-builtdocumentationandfinalacceptanceofwork.TheprovisionshereinprintedinboldtypearecompulsoryonesandTheMinistryofHousingandUrban-RuralDevelopmentisinchargeoftheadministrationofthisCodeandtheexplanationofmandatoryprovisions,theMinistryofIndustryandInformationTechnologyisresponsibleforroutinemanagement.ChinaInternationalTelecommunicationConstructionCorporationisresponsiblefortheexplanationofspecificltechnicalcontents.ShalltherebeanyneedofsupplementtothisCodeduring/itspracticalimplementationprocess,pleasepostsuggestionstoChinaInternationalTelecommunicationConstructionCorporation(No.A56Nanfangzhuang,FengtaiDistrict,BeijingPostCode:100079)forreferenceswhilethecodeistoberevisedormodChiefDevelopmentOrganization:ChinaInternationalTelecommunicationConstructionCorporationParticipatingDevelopShanghaiPostsandTelShanghaiEngineeringBureauGroupCo.ChiefDraftingStaff:LiuTianmingCuiJianqiaoPanChaoZuPLinJianminWuWanhongLiuGuiChiefExaminers:WangWenchengHeYongtaoYangJinChangRuilLiuFugenWangWeifengLiChenZhangBinXieHengyuanWangFengwuLiQuanfaYeJiMengYongyeRenYalinBaiShanminYinPengWeiPengZha 7LayingofOptical(Electrical)Cab 9Optical(Electrical)CableCross 13PreparationofAs-builtDocumentation AppendixASingle-drum AppendixBRequirementsforEarthingResistanceofLightningWExtensionLine(Undergroun AppendixCRequirementsforEarthingResistancCableSuspensionWiresandOther AppendixDOriginalErectio AppendixFPermissibleReductionValueofAirPlugPres AppendixGPermissibleA 1.0.1Thiscodeisdevelopedfortelecommunicpolicies,tobetechnologicallyadvanced,financiallyreasonable,energy-efficientandenvironmentally-friendly,andtoguaranteeconstructionmaterials,constructionqualityandas-built(electrical)telecommunicationca1.0.2Thiscodeisapplicabllandwithconstruction,extensionand1.0.3Thegauge,specificationandqualityofequiprequirementsoftheapproveddesigndocumentation.UncertifiedaboveinChina,anti-seismicperformanceoftel1.0.5Inadditiontothlineprojectshallcomplywiththoseint2.0.1MicroductsMicroductsaresmall(maximumoutsided2.0.2MicroductbundleMicroductbundleisacertainnumberofmicronsistsofbundledmicroductswithouterprotectivesheath(e.g.moistflayer).1Mustbesuitabletobelaidinmicroductby3TheouterdiameterofmMicroductcablejointenclosureisreferredtothejoi3.1.1Whentestingoptical(electrical)cablesandmaterials,therepresentativesofownerorsupeshallbepresenttogetherwithcon3.1.2Gauge,specification,modelandquantityofoptical(electrical)cabpackagedwithallnecessaryfactorydocumentation(theproductqualitycproducttestrecordsprovidedbythemanufacturer),andsoareothmaterials.Anyequipmentormatercertificateshallnotbeu3.1.3Visualinspectionshallbeperformedtooptical(electrical)cables,equipmethepackageshallbeintact,anditsoutsideshallbé3.1.4Packagingandoutersheathofcablesshallbe/intact,andthe3.1.5Attheopen-caseexamination3.1.6ExaminationRecordsofoptical(electrical)cable3.2.1Singledrumopticalfibercableexaminationmainlyincludes:re-meameasurementofopticalfiberlossando3.2.2Transmissioncharacteristicsofopticalfibercablesshallmeetdesignrequirement3.3Single-drumCableExami3.3.1Single-drumelectricalcableexaminationmainlyincludes:badpairtest,sealabilitytsheath,pairloopresistancetest,insulationresi3.3.2Colorschemeandcablingorderoftelecommunicationcableco3.3.3Mainelectricalcharac3.3.4Fillingoffilledcablesshallb3.3.5Inflatablecablesshallbefilledto3hours(6hoursforarmoredcables).Cablesfailing3.3.6Messengersofself-suspendedoptical(electrical)cablesshallbeinstalledinpar3.4.1Annularreinforcedconcretep2Theouterappearancequalityofc1)Circularorverticalcracksshallnotbeavailableonthesurfaceprestressedconcretepoles.Verticathecircularcrackshereofshallnotbegreaterthan0.05mminwidth.Turtlebackorwatery2)Forthepole,nomortarleakageshallbeavailabljuncturebetweensteelplateand6)Noconcretedamageshallbeava3Inoneofthecasesbelow,concretepolescanb1)Thetotalareaofpittedskinoro2)Thedepthofthemortarleakageshallnotbegpole;foreachmortarleakage,itslengthshallnotbegreaterthalnotbegreaterthan10%ofthepofshallnotbegreatert4)Forthebumpingdamageonthepole,thedepthis4Acceptablemeasurementdeviationofconcretep2)Allowabledeviationforouterdiameterofpolesis—2mmto+4mm.3)Allowabledeviationforthicknessofpolesis—2mmto+10mm.4)Allowabledeviationofdistancebetweentwoverticalprefabricatedholesis±4mm.Acceptablediameterdeviationofprefabricatedholeis+2mm.5Nameortrademarkofmanufacturershallbemarkedonthesur6Productconformitycertificateshallbesealedbythetechnimanufacturer,bearingname,trademark,addressandtelephonenumberofthemanufacturer,productiondateandmanufactorydates,standardtestresultsofcompressivestrengthofconcrete,testresultsofverticaltensilestrength,examinationresultsofdimensionaldeviationofpackaging,mechanicalperformance,etc.3.4.2Whenitisdifficulttodpropertiesmaybereviewedbyentitiesconc3.4.3Woodenpolesshal1Immersiondepthandpreservativeroottreatmentofoil2Inanyofthefollowingca3)Thebendingisgreaterthan2%ofthetotallengthofthepole.3.5.1Outerdiameter,thicknessanddesignatedsingle-drumcablelengthofthesimeetrequirementsinTable31一0.02一0.23obviousdent/bumporbub3.5.3Single-drumsili3.5.4Connectingpieceshallbematchedwiththecorrespondingsilicon-coresurfaceshallbesmooth,defe3.5.5Rubberplugshallnobefirmlyinstalled,wburrs,cracks,scarsorrust.3.6.3SpecificationTable3.6.3Propertiesofstrandedgalvanized3.6.4Thelengthofsingle-drumstrandedgalvanizedsteelwir3.6.5Ironwareforoverheadcommunicationcablelinesshallm1Thematerialanddimensionofironwareshallcomplywithdesignrequi2Deviationofironwarestraightnessshallbenogreaterthan0.5%of3Ironwareshallnotbeweldedorhammerweldedunlessotherwisest4Forironware,nodefectssuchascracallowanceofmaterialandburrsnotgreaterthan0.2mmareallowe6Anticorrosiontreatmentofironwaresurfa3.7.1Whileexaminingthejointboxandsplicejacketofopticalfibercables,thefollowingrequirements1Thejointboxshallbewell-shaped,andtheplasticwareshallbeevenly-cdefectssuchasburrs,bubbles,cracks,holes,bendingandimpuriti2Accessoriesandspecialtools,instructions,product3.7.2Splicejacketofplasticcablesshallmeetthefollowingrequirements:shallbeeven,anditsfittin2Fortheheat-shrinkablesleeve,thesurfaceofwithoutanybubble,pore,scarorcrack;thesurfaceorusts;andtherubberandothersealingmaterialshal3Adhesivesurfaceofheat-shrinkablesleeve,injectionbarofPVCsleeve,andsealingtasealingpartsforassemblingshallbeprotectedagainsshownonthesurfaceofheat-shrinkablemater3.8.1Thebuttonconnectorshallbewell-clamped,anditsappearance3.9.1Examinationofoptical3InsulationresistancebetweshallcomplywiththerequirementsofcurrentprofessionalstandardOpticalFiberDistributionF1Connectorshallbefreefr6Insulationresistancebetweenprotectiveearthings,betweenprotectorsshallcomplywiththerequirementsofcurrentprofessio3.10.1Opticalc1Allfastenersshalbeanyrustapparenttothenakedeye.Metalcomponentsshallnotha2Thecabinetunlocked;thedoorofthecabinetshallbeflexible;coatingonmetalstrwithoutanyflakeorpeeling-3.10.2Electricaldistr1Thecabinetshall2Surfacepaintshallbeevenly-colored,neatlysanysagging,scratch,e3Nuts,boltsandflatwashersofconnensurecompliancewithrequirementsof3.11.1Allintersectionsofanymicroduct,microductbundleorcableofmicroductshallbeevenwit3.11.2ColorcodingofthemicroductshallbeincompliancewiththerequirementsofthecurrprofessionalstandardMicroductOTelecommunicationParilIII-Microduct,MicroductBundleandMicroductAccessoriesYD/T3.11.3Thedesignatedvalueofstandardmanufacturedlengthofmicroduanditsallowabledeviation3.11.4|Anymicroductthatdoesnotcomplywith3.11.5Microductofmudandwater.3Thejointsofmicroductshallnotbelooseandbefreefromanyv4DataofmanufacturingperformancetestandmechanicalperformanceTable3.12.1Dimensionandallowabledeviationofcementbas士10forlength,width士10forlength,width士10forlength,width4.0.1Re-surveyofc4.0.2Duringroutere-survey,routeprotectivemeasuresandspecificlocations,wherealinespassrailways,roads,rivers,lakes,majorwaterchanne4.0.3Duringroutere-survey,protectivemeasuresagainsterosion,termites,high-voltageandli4.0.4Whenre-surveyingroutesofdirectburiedoptical(electrical)cablesandsilicon-coreplasticpipelines,grounddistanceshallbemeasured;forductoptical(electrical)cables,thedistan(handhole)centersshallbemeasured;foroverheadlines,thedirectdistancebeTable4.0.5CleardistaThermalpipe,drainagepi一一一一一一一2Whencablepasesbyoverheadline,anchorwire,discretehightreandhighbuilding,lightningprotectionrequirements4Thecablesshallbeprotectedandburiedundert5EffectiveprotectivemeasuresshallbetakenaccordingtoTable4.0.6-1Minimumnetdistancebetweenoverheof500kV-750kVand750kVpowertransmiNote:Innarrowarea,whenthedistancebetweenplannedoverheadopticaTable4.0.6-2Theheightofoverheadoptical(electrical)cable一一一一一一一一一一facilities,shallnotbelTable4.0.6-3Minimumverticalcleardist一一一一4.0.7Cable-jointpitsofdirect-buriedoptical(electrical)cablesandmanholes(handholes)ofsilicon-coreplasticpipesshallbelocatedinhigherandflattmightbedisturbed,suchasponds,riverchannels,roadsetc.shallbeavoided.5.1.1Whenexcavatingtrenches(pits),ifburiedthingswerediscovered(especiallyculturalrelics,ancienttombs,etc.),constructionworkmustbestoppedimmediately,andthesiteshprohibitedfromcontinuingconstructionwithinthesectionofthisareabeforethesituatioproperlyhandled.depthis50mm.Tomeasuredepthofpoleholessurroundedbytemporarilypiledupssurface,permanentgrou2Thedepthofholesonslopesshallbedownslopegrooves(Figure3ThebottomofpolehTable5.1.2StandardDepthofOverheadOptical(Electrical)CablePolesNotes:1Theholedepthofspecialpolesgreate2Thistableisapplicabletothenewly-builtcommu3Theholedepthofbracingpoleshallnotbelessthan0.6m.ThedesignreqFigure5.1.2ApproachtoMeasuretheDept1—StandardHoleDepthoftheSlope;2—The5.1.3ThedepthofancTable5.1.3Depthofan2Pitdepthofsus3Holedepthofbracin1)Whenassistantstaywireisneededinadditi2)Whenassistantstaywireisnotne5Pitdepthofsuspended5.1.4Thetrenchesofoptical(electrical)cablesandsilicon-coreplasticpipesshallme1Trenchesshallbestraightwithoutsnakybending;trench2Smoothtransitionatridgesshallbekeptfortrenchesofsilicon-coreplasticpipe,anradiusofsilicon-coreplasticpipearoundcornermarkersofotheroptical(elec4Whendiggingtrenchesbyblast5Whentrenchesofoptical(electrical)cable6Whenlayingsilicon-corepipesinshouldersandisolati5.1.5Theburialdepthofdirect-buriedoptical(electrical)cableshallcoTable5.1.5Burialdepthofdirect-Gravelsoil,semi-stonysPassingthroughrailway(fromsubgradesurfNotes:1Designdepthinroadsideditchesshallbethedepthrequiredbyroadorurbanconstructionditchesthatareditchedmanuallycanbmortar.3TherequirementsforburialTable5.1.6Burialdepthofsilico12Semi-stony(gravelsoil,w3456Passingthroughrailway(fromsubgradesurface)an7Centralisolationzo8Ditch,drainage,reser9SamewithunderwaterNotes:1Theburialdepthofstonyditchesthatareditchedmanuallyandroad(railway)sideroadshoulderscanbereduc2Thebottomwidthofpipetrenchesusuallyshallbe100mgreaterthanea3Whenexcavatingpipetrenchesincentralisolationzoneorhighwayroadshoulder.theimpactofinst5.1.7Thestandardburialdepthofunderwateroptical(electrical)cablesshallcompTable5.1.7Burialdepthofunderwateropplan,thestandardburiconstruction;however,appExtremelyunstableareawithsBelowthemaximumdeNote:Theupslopeangleofcablesoncoastsandbeachesshallbelessth5.2.1Backfillingpoleholes,staywirepitsandbracingpoleholesha50mm-100mmabovetheorwiththeoriginalgro5.2.2Whenbackfillingcabletrenchesandsilicon-corepipetheoriginalearth.Itisstrictlyprohibitedtoputstones,brickbackfillingwithin300mmofthetopofsilicon-coreplasticpipeaswellasthoseclosetobot5.2.3Fortrenchesofoptical(electrical)cablesandsilicon-coreplasticpipesburiedinurbanareasorsuburbs,thebackfillingshallroadwaysorbricksidewalks,thebackfillingshalllevelwithroadsurfac5.2.4Fortrenchesofoptical(electrical)cablesandsili5.2.5Accordingtodesignrequirements,backfillingthicknessshallbein-requirementssoastoproperlycoverman(hand)holepitsofsilicon-coreplrman(hand)holepitbackfillingfConstructionandAcceptanceforCommunicationConduitEngineeringGB505.2.6Designdocumentsshall1Polesinstraightcablerouteshabetweenthecenterlineofthepoleandt2Footofcornerpolesshallbemovedinwardswithinangularb200mmto300mm.Whenstaywireistightesothatthetipofthecornerpoleshallbeattatbothsidesofthecornerpole.Itisacceptablethatfootofthecornerpoleisgeographicallimitationsorifthecornerpol46Woodenpole:200mm-300mmFigure6.1.3RequirementsontheErectingofCornerPo1—(Electric)Pole;2—CornerPole;3—AngularBisectoroftheLine;4—DistanceofInwardsMovementoftheFootofCornerPole;5—StayWireHoop;6—StayWire;7—Susp6.2.1Polesshallbeextendedbasedonlength,manneran6.2.2Cementpolesshallbeextendedbyusingsame-diametercemen6.2.3Extensionofwoodenpolesshal1Thediameterofthetipofthelowerpoleshallbegreaterthanthatoftheupp2Thediameterofthetipofthelowerpoleshallnotbelessthan3/4ofthatofthefootoftheupperpole.3Nailholesshallberightandproper,onthecenterlineofthe4Thejointsectionshallbetight,seamless,compactandsolid.Thenailhsectionshallbecoatedwithanticorr5The4.0mmsteelhoopsshall6Whenwoodenpolesareconnected,thebodyo7Theconnectionlengthoftherrortoleranceofeachpartofthesingle-connectedpole(Figure6.2.3-1)andth(Figure6.2.3-2)is20mm.Thesingle-connectedpolerequiresM16mmbolt.Thedouble-connectedpolerequiresM19mmboltsand4.0mmsteelhoopwiresh6.3.1Quantityandpositionofpolef1ThefootingofthecemenfixedbyU-shapedhoops(Figure6.3.2-1).2Thefootingofthewoodenpolesshallbefixedbyusingtimbercross-bars,pwith4.0mmsteelwiresby6circles,fixedwithtwoclampnailsandcoat6.3.2-2).Figure6.3.2-2HorizontalTimber1—RequiredBuryingDepth;2—33Theheavy-loaddead-endbefixedbyusingstow-woodatthebottomofthepolwires(Figure6.3.2-3).Figure6.3.2-3UsingStow-woodat6.3.3Thelocationo1Linewithoutparticularrequirementsshallparticularrequirements,thefootingshallbeinstalledonthesamesideofthrequiredforadjacentpoles,theyshallbein2Iftheinter-poledistancesareunpoles.6.3.4Thelocationsofthefootingsofcornerp2Thelowerpartofthedoublefootingshallbeinstalledatthesideofsupperpartofthefootingshallbeupperpartshallbeperpendicular(T-shaped)tothestaywire.Gaugeofsteelstrandoftheananchorcanusetwosteelstrandsofthesamandthestow-woodofanchorshallcomplywiththerequirementsofanchorpouredintotherockshTable6.4.3-1Specificationofanchor一一一Table6.4.3-2Specificationof6.4.4Thelengthtoheightratio(L/Hratio)ofthestaywireis1:1.DueL/Hratioshallbenolessthan0.75andnogrFigure6.4.4L/HRatioofSta6.4.5Theinstallationofstaywireinsuandfixingspecificationonthetwosidesofinsulatoristhe6.4.5).6.4.6Ifthestaywiup.Insulationmaterialshallinsulationmaterialshallbeburied200mmbelowtheground.Plasticpipeorbamboopipesha6.4.7Thedistancebet6.4.8Thedistancebetweentheapproximatecenteroftheanchorholeofstaywireandtheburyingofthestaywireisequaltoholedept6.4.9Thespecigaugeasthatofsuspensionwireshallbeuseda2Asforcornerpolewithangledepthwithintherangeof1ratioofthestaywirebetweenwiththeL/Hratiolessthan0.5andwiththethegaugeonegradeabovesuspensionwireshallbeusedasthest3Asforcornerpolewithangledeptcornerpoleswithapproximatelytinstead(Figure6.4.9).wireshallconsistofstranded5Forthejunctionpole,head-onstaywireshallbeaddirection.Thegaugeofhead-onstaywireshallbeonegradehigherthanthebranchsus7Thepolesonthetwosidesofthelongerspanshallbepre-sofhead-onwireshallbeonegradehigherthanthesuspensionwire.directionorfour-directionstaydirectionstaywiresshallbeaddeda11Thewind-resistantpoleshallbesetwithonelayeroftwo-directionstwithalayeroffour-directionstaywires.Thegaugeofstaywiresonthesidesofthepoleshallbeofthewind-resistantstaywires.7/3.0mmsteelstr12Thestaywireofcornerpolecannotreplacewiresofcornerpole,wind-resistantpoleandanti-icedpolecannotbesetduetotheterrainlimitatiwind-resistantpoleand13Beforedead-endpole,theauxili7/3.0mmsteelstrandedstaywireshallbe6.4.10|Thedirectionofstaywiresettingshallcomplywiththefftheinneranglebisector(FigureFigure6.4.10-1DirectionfortheSettingofCornerP1and2—SuspensionWire;3—CornerPole;4ground-breakingpointofeachstaycorrespondingsuspensionlinFigure6.4.10-2InwardsMovementDirect1—SuspensionWire;2—C3Thehead-onstaywireshallbeFigure6.4.10-3InstallationDirectionofHead-onS4Thedirectionoftwo-directionstaywiresshallbeperpendiculartothedirectionline.Thefour-directionstaywiresisreferredcaseofterrainlimitations,thewiresshallbesetwith(a)Two-directionStayWires(b)Four-(Incaseofterrainlimitations,thewiresshFigure6.4.10-4InstallationDirectionofTwo-directionStayWiresandFou5Three-directionstaywiresconsistoftwo-directionthereversesideofthecross-overspanorlongerspan(T-shapedwirescanalsobesetwithadeflectionwireintheY-shapedstaywiresshallbesetonthe(Figure6.4.10-5).Figure6.4.10-5InstallationDirectionofThree-directionStay6.4.11Thefixingandsettingofthestaywires1Therouting-directionstaywireofdead-endstaywhree-directionstaywires,andanti-icedstaywiresshallbesetabovesuspensionwires,andtstaywire(theside-pullstaywiresoftwo-direc