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CablingofpremisesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1-FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE1/78Author'snameBusinessunitTelstraOperationsSub-businessunitAccessTechnologyPlanningIssuedate26August2013Issuenumber1TelstraID017153a02SummaryThisdocumentprovidessummaryguidancetodevelopers,builders,electricians,telecommunicationscablingprovidersandconsumersabouttheinstallationoftelecommunicationslead-incablingincludingthecableentryarrangementsatthebuilding.
Fordetailedinformation,refertoTelstraDocumentNo.
017153a00,Cablingofpremisesfortelecommunications—Acompleteguidetohomecabling.
Thisdocumentisoptimisedforreadingonatabletorportablecomputertotakeadvantageofhyperlinks,documentsearchfunctionsandon-screenmagnificationofphotographsanddrawings.
ThispublicationhasbeenpreparedandwrittenbyTelstraCorporationLimited(ABN33051775556),andiscopyright.
OtherthanforthepurposesofandsubjecttotheconditionsprescribedundertheCopyrightAct,nopartofitmayinanyformorbyanymeans(electronic,mechanical,microcopying,photocopying,recordingorotherwise)bereproduced,storedinaretrievalsystemortransmittedwithoutpriorwrittenpermissionfromthedocumentcontroller.
Productorcompanynamesaretrademarksorregisteredtrademarksoftheirrespectiveholders.
Notefornon-Telstrareaders:Thecontentsofthispublicationaresubjecttochangewithoutnotice.
Alleffortshavebeenmadetoensuretheaccuracyofthispublication.
Notwithstanding,TelstraCorporationLimiteddoesnotassumeresponsibilityforanyerrorsnorforanyconsequencesarisingfromanyerrorsinthispublication.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE2/78CONTENTS1PURPOSE42SCOPE43INTRODUCTION.
43.
1BroadbandservicesandtheNationalBroadbandNetwork43.
2Whatislead-incabling43.
3Homecablingelements.
44UNDERGROUNDLEAD-INCABLING.
64.
1General.
64.
2Conduitrequirements64.
2.
1Conduitmaterialandsize.
64.
2.
2Conduitcolourandmarkings.
64.
2.
3Bendsandcurves.
64.
2.
4Conduitinstallation74.
2.
5Whoprovidestheconduit74.
2.
6Conduitintegrity.
74.
2.
7Useoflead-inconduits/pits/cables.
94.
3Propertyentrypoint.
94.
3.
1Description94.
3.
2Urbanresidentialareas104.
3.
3Commercial/Industrialandruralareas.
104.
4Lead-incablingroute124.
4.
1Copperlead-incabling.
124.
4.
2Opticalfibrelead-incabling(FTTP)134.
4.
3Singledwelling.
134.
4.
4Multiplebuildings144.
4.
5Ruralareas.
184.
4.
6ContactingTelstraaboutTelstralead-incabling184.
5Lead-intrench194.
5.
1Safety194.
5.
2Trenchdepth.
204.
5.
3Trenchwidth.
214.
5.
4Beddingandbackfillmaterial214.
5.
5Retainingwallsandembankments214.
5.
6Proximitytopowerpoles234.
5.
7Trenchingoutsidethepremises.
234.
5.
8Sharedtrencharrangements.
234.
5.
9Exclusive(separate)trench.
254.
5.
10Crossoverswithotherservices264.
6Lead-incable.
295AERIALLEAD-INCABLING305.
1General.
305.
2Lead-incablingroute305.
3Privatepolesandtrees.
305.
4Powerutilitypoles.
305.
5Inspectionandmaintenanceofpoles305.
6Clearanceofaeriallinesfromtheground.
305.
7Clearancefromotherservices315.
7.
1Atpolesandin-span.
315.
7.
2Atthebuilding315.
8UseofTelstrapolesforpowermains.
315.
9UseofTelstrapolesforcustomercabling.
325.
10Aerialcableattachmentatthebuilding326PREMISESCONNECTIONDEVICE(PCD)356.
1Description356.
2Externalcombinedutilitiesenclosure(CUE)366.
2.
1Description366.
2.
2CUErequirements37CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE3/786.
3Whereanexternalcombinedutilitiesenclosure(CUE)isnotprovided.
386.
3.
1General.
386.
3.
2Low-densitywallcladding(e.
g.
polystyrene)396.
3.
3PCDpositioning407BUILDINGENTRYCONDUITS.
427.
1Description427.
2Lead-inentryconduit427.
2.
1Conduittype.
427.
2.
2Lead-inconduitpositioninginthebuildingfoundations.
437.
2.
3Termitebarriers.
457.
3Conduitfortiecabling.
467.
3.
1Description467.
3.
2Conduitrequirements467.
3.
3Conduitinstallation467.
4BuildingentryconduitarrangementswhereaCUEisused.
497.
4.
1General.
497.
4.
2Tiecabling.
497.
4.
3Undergroundlead-incabling497.
4.
4Aeriallead-incabling527.
5BuildingentryconduitarrangementswhereaCUEisnotused557.
5.
1General.
557.
5.
2Tiecabling.
557.
5.
3Undergroundlead-incabling557.
5.
4Aeriallead-incabling587.
5.
5ConduitpositioningatthePCDlocation617.
5.
6PCDpositioningovertheconduits.
637.
5.
7PCDfastenings.
687.
6Drainagepit.
687.
6.
1Description687.
6.
2Plugging/Sealingofconduits.
688SEPARATIONFROMOTHERSERVICES.
708.
1General.
708.
2Electricityandgas.
708.
2.
1Undergroundconduits/pipes708.
2.
2Conduits/Pipes/Cablesin/onbuildings.
708.
3Otherbuildingfixtures.
718.
3.
1General.
718.
3.
2Lightningdown-conductors719EARTHING729.
1Whenisearthingrequired729.
2Equipotentialbonding729.
3Installationofearthingconductors.
749.
3.
1General.
749.
3.
2Earthingconductorsizeandcolour.
7410ABBREVIATIONS.
7611ASSOCIATEDDOCUMENTS7712DOCUMENTCONTROLSHEET78CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE4/781PURPOSEThepurposeofthisdocumentistoprovideessentialguidancefortheinstallationoftelecommunicationslead-incablingandcableentryarrangementsatthebuilding("buildingentryfacilities")fortheconnectionofbroadbandandtelephoneservicesthatmaybesuppliedbyanyofthefollowingtechnologies:coppertwistedpaircable—fortelephoneandADSL(AsymmetricDigitalSubscriberLine)servicesHFC(HybridFibre-Coax)—otherwiseknownas"Cable"(forCableinternetandCablepayTV)FTTP(FibreToThePremises)—fortelephone,broadbandand,insomecases,TVservices.
TheguidanceprovidedbythisdocumentisintendedtoensurethatthecablingiscompatiblewiththeNationalBroadbandNetwork(NBN)towhichallhomesareexpectedtobeconnectedeventually.
Foressentialguidanceoninternalcablingforthehome,refertoDocumentNo.
017153a01,Cablingofpremisesfortelecommunications—Essentialinformationforhomecabling.
TheTelstradocumentsmaybedownloadedfromthe"Builders"menuoftheTelstraSmartCommunitywebsite(http://www.
telstra.
com.
au/smart-community/builders/).
2SCOPEThisdocumentappliestoanybuildingconstructedforuseasahome.
Itappliestodetachedbuildings(singledwellings)aswellassemi-detachedbuildings(townhouses,villas,etc.
).
Whilethedocumentgenerallydescribescablingfornewbuildings,itmayalsobeappliedtobuildingrenovationswherethelead-incablingistobeupgradedorreplaced.
3INTRODUCTION3.
1BroadbandservicesandtheNationalBroadbandNetwork"Broadband"isthegeneraltermusedtodescribeservicesthatoperateathigherfrequenciesordigitalbitratesthanarenecessarytotransmitthehumanvoice(e.
g.
forhigh-speedaccesstotheinternet).
TheNationalBroadbandNetwork(NBN)isatelecommunicationsnetworkthatisbeingconstructedbyNBNCoLimited,acompanyestablishedbytheCommonwealthGovernmenttoprovideaccesstohigh-speedbroadbandservicesbyallAustralianresidentsbytheyear2021.
Indenselypopulated("urban")areas,serviceswillmainlybesuppliedusingFibre-To-The-Premises(FTTP)technology,whereasinsparselypopulated("rural")areas,serviceswillbesuppliedusingfixedwirelessorsatellitetechnology.
Formoreinformation,refertoDocumentNo.
017153a00,Cablingofpremisesfortelecommunications—Acompleteguidetohomecabling.
3.
2Whatislead-incablingLead-incablingisthecablingfromthelastdistributionpointinacarrier'stelecommunicationsnetworktothe"networkboundary",e.
g.
aNetworkTerminationDevice(NTD)inacustomer'spremises.
Lead-incablingwillnormallybeinstalledundergroundunlessaerialcablingdistributionisalreadybeingusedinthestreetand/orthegroundconditionsorcircumstancesprecludeundergroundinstallation.
Telecommunicationscarriersdecidewhethertoinstalltheirlead-incablingundergroundoraerialbasedontechnical,safety,economicandanyapplicableenvironmentalorregulatoryfactors.
Undergroundcablingisusedinvirtuallyallnewpropertydevelopments.
3.
3HomecablingelementsApictorialsummaryoftheelementsthatmakeupatypical,modernhomecablinginstallationisprovidedinFigure1.
Thepartoftheinstallationcoveredbythisdocument(017153a02)iscircled.
RegisteredtrademarkofTelstraCorporationLimitedCablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE5/78Figure1HomecablingelementsNotes:1.
Thelead-inconduitisusedforpullingintwistedpair,coaxial,oropticalfibrelead-incabling,asapplicable.
2.
TheuseofaCombinedUtilitiesEnclosure(CUE)isrecommended.
ACUEwillhouseanystyleofPCDandavoidstheneedtoworkoutconduitpositioningforthePCD.
Referto6.
2fordetails.
3.
Acablingpathway(conduit)isrequiredbetweenthePCDandtheCCPforinstallationof"tiecabling"betweenthePCDandtheCCPafterbuildingcompletion.
Theconduitisusedforpullingintwistedpair,coaxial,powersupplyoropticalfibrecabling,asapplicable.
AsecondconduitmayberequiredforcoaxialcablingforcableTV(whereavailable).
ThelengthoftiecablingbetweenthePCDandtheCCPshouldnotexceed25munlessitiscertainthatanindoorFTTPNTDwillbeinstalled,inwhichcasethelengthshouldnotexceed40m.
4.
TheCCPenclosuremaybesizedtohousesomeorallofthepoweredelectronicdevicesrequiredtooperatesomeservices(e.
g.
NTD,modemorgateway).
Alternatively,thedevicesmaybelocatedoutsidetheCCPenclosureorinaseparateenclosure.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE6/784UNDERGROUNDLEAD-INCABLINGIfitisknownthataeriallead-incablingwillbeused,skiptosection5onpage30.
4.
1GeneralWhereundergroundlead-incablingistobeinstalled,thebuilder,homeownerorcustomerisrequiredtoarrangeandpayforsuitabletrenchingforthelead-incablingbetweenthecarrier'scablingentrypointattheboundaryofthepremises("propertyentrypoint")andthecablingentrypointatthebuilding("buildingentrypoint").
"Trenching"meansclearingoflandalongthecablingroute,diggingofthetrenchandreinstatingthelandafterthecablingisinstalled.
Referto4.
4.
5onpage18fordetails.
Thebuilder,ownerorcustomermayalsoberequiredtosupplyandinstallthelead-inconduit(see4.
2.
5).
Inurbanareas,lead-incablingisinstalledinconduitirrespectiveofthedistancebetweenthepropertyboundaryandthebuilding.
Wherethetotallengthoftheconduitwillexceed50m,intermediatepitsarerequiredatnomorethan50mintervalstoprovideaccesspointsforpullingcables(seeFigure4).
Inruralareas,Telstrainstallsitslead-incabledirectlyinthegroundwithoutconduitexceptforaboutthelast3mtothebuildingwhereconduitisusedforadditionalcableprotection.
Note:ItisunlikelythatFTTPwillbeinstalledinruralareasintheforeseeablefuture.
Inruralareas,NBNservicesarelikelytobesuppliedbyfixedwirelessorsatellite.
Nevertheless,copperlead-incablingmayberequiredforthesupplyofatelephoneserviceand,ifavailable,anADSLservicemayalsobesuppliedviathiscable.
4.
2Conduitrequirements4.
2.
1ConduitmaterialandsizeForanindividualhome,thelead-inconduitmustberigidUPVCwithaninsidediameter(ID)of23mm.
Flexibleorcorrugatedconduitmustnotbeusedforundergroundlead-incabling.
Thecross-sectionaldimensionsoftheconduitareillustratedinFigure2.
Notes:1.
ThisconduitsizeisreferredtobyTelstraas"20mm"conduit(itsnominalinsidediameter)or"P20"("Plastic20mm").
2.
AnyconduitmanufacturedtoAustralianStandardAS/NZS2053(e.
g.
markedas"20mm","25mm"or"32mm"andincluding"2053"inthemarkings)isphysicallyincompatiblewithTelstraandNBNConetworksandisnotsuitableforlead-incabling.
Polyethyleneconduitorpipeisalsonotsuitableforlead-incabling.
Figure2Conduitdimensions4.
2.
2ConduitcolourandmarkingsLead-inconduitandbendsmustbecolouredwhite.
Conduitofanyothercolourisnotacceptable.
ForTelstralead-incabling,theconduitandbendsmaybemarked"Telstra","NBN"or"Communications".
AnyofthesemarkingsareacceptabletoTelstraaslongastheconduitIDis23mm.
Note:AlternativeconduitmarkingsmaynotbeacceptabletoNBNCoforNBNlead-incabling.
4.
2.
3BendsandcurvesNomorethantwounderground90°bendswithaminimuminnerbendradiusof300mmarepermittedbetweenaccesspoints.
CompositebendsmaybeusedatthebuildingfootingsasshowninFigure37onpage43.
Athird90°bendwithaminimuminnerbendradiusof100mmispermittedabovegroundatthecableaccesspointatthebuilding(e.
g.
inthewallcavity).
Onlyprefabricatedbendsmaybeused.
Conduitsmustnotbebentonsite(e.
g.
byapplicationofheat).
Curvatureofgluedlengthsofconduitisallowablewithoutaffectingthenumberofbendsthatmaybeusedaslongasthecurvatureradiusisnolessthan130timesthenominalinsidediameteroftheconduit(inpracticalterms,thismeanscurvingtheconduitwithoutdistortingthecross-sectionalroundnessoftheconduit).
RefertoFigure4.
Whereitwouldbenecessarytousemorethantwounderground90°bends(e.
g.
toeffectasharpchangeofdirectioninthemiddleoftheconduitrun),anintermediateaccesspitmustbeusedasacablepullingpoint.
RefertoFigure5.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE7/784.
2.
4ConduitinstallationConduitandbendjointsmustbegluedwithsolventcement.
Theconduitmarkingsshouldfaceupwardswhentheconduitislaidinthetrenchsoastobevisibleiftheconduitisexposedbydiggingafteritsinitialinstallation.
Apull-cordorcablemustbethreadedthroughthelengthsofconduitduringassemblyforlaterinstallationofthelead-incablebythecarrier.
Eachendoftheconduitmustbepluggedtopreventtheingressofsiltordebrisintotheconduit.
4.
2.
5WhoprovidestheconduitInnewdevelopmentsthatareinNBNCo's"long-termfibrefootprint",thelead-inconduitandanynecessarypitsaretobesuppliedandinstalledbythebuilder,ownerorcustomertoNBNCo'sspecifications.
IntheabsenceofanyNBNCospecificationsforlead-inconduit,thelead-inconduitrequirementsdescribedinthisdocumentmaybeusedasaguide.
Wherethelead-incablingistobeconnectedtotheTelstranetworktosupplyaTelstraservice,thesupplyandinstallationthelead-inconduitandanynecessarypitsinacustomer-suppliedtrenchareincludedintheTelstraconnectionchargefortheservice.
However,thebuilderorownermayopttosupplyandinstallthelead-inconduitforexpediency,inwhichcaseitmustbeinstalledinaccordancewithTelstra'srequirementsasdescribedinthisdocument.
4.
2.
6ConduitintegrityTobe"FTTPready",thelead-inconduitandbendsmustbecapableofpassinganopticalfibrecablethathasapre-terminatedconnectorprotectedbystiffplastictubingandcoveredbyapolypropylenehaulingsock.
Thisassemblyhasatotaldiameterofupto18mmforalengthofabout800mmandissemi-rigid.
Theprotectivetubingandhaulingsockprotecttheopticalfibreandopticalconnectorwhilethecableisbeingpulledthroughthelead-inconduitandensurethatnopullingforceisexertedontheconnector.
Thesockwillnotpullthroughsmall-radiusconduitbendsduetoitslargediameterandrelativestiffness.
Figure3showsanopticalfibrecableassemblythreadedthrough300mmand100mmradiusbends.
Note:Opticalfibrecableswithfactory-fittedconnectorsmaybepreferredbysomecarrierstosimplifyinstallationandreduceinstallationcostsbyavoidingtheneedforexpensivefieldsplicingequipmentandskilledoperators.
Themaindisadvantagesofusingcablewithfactory-fittedconnectorsare:Theintegrityoftheconduitusedtopullinthecableisveryimportant.
Thecablesaresuppliedinpredeterminedlengths,soslackcableneedstobestoredsomewhere(e.
g.
inthepit,PCDorabuildingcavity).
Figure3Pre-terminatedopticalfibrelead-incablethreadedthrough23mmIDconduitbends(a)300mmradiusbend(foruseunderground)(b)100mmradiusbend(foruseinthewallcavity)Notes:1.
300mmradiusbendsareusedatpitsandverticallyatthebuildingfootings.
2.
A100mmradiusbendisonlypermissibleinthewallcavityofthebuilding.
3.
Itcanbeseenfromtheabovepicturesthatthecablehaulingsockisatightfitintheconduit,soclear,undamagedconduitandlargeradiusbendsareessential.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE8/78Figure4Lead-inconduitlength,curvatureandbendlimitations(a)Standardurbanlot(b)Largeurbanlot(orstreetpitdistantfromthepremises)Notes:1.
Undergroundbendsmusthaveaminimuminnerbendradiusof300mm.
CompositebendsmaybeusedatthebuildingfootingsasshowninFigure37onpage43.
2.
Aprefabricatedbendwithaminimuminnerbendradiusof100mmisallowableinthewallcavityofthebuilding.
3.
Theconduitmaybecurvedtoaminimumradiusof130timesthenominalinsidediameteroftheconduit(i.
e.
2600mminthecaseof23mmIDconduitwhichhasanominalinsidediameterof20mm).
Inpracticalterms,thismeanscurvingtheconduitwithoutdistortingthecross-sectionalroundnessoftheconduit.
4.
Asharedtrenchwiththeelectricitymainsisrecommended.
Noseparationisrequiredbetweentheorangeelectricityconduitandthewhitetelecommunicationsconduitbutthewhiteconduitshouldbelaidabove(ontopof)theorangeconduitwherepossible.
Referto4.
5.
8onpage23fordetails.
5.
Ifthetotallengthofconduitbetweenaccesspointswillexceed50m,oneormoreintermediatepitsmustbeinstalledatintervalsnotexceeding50m.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE9/78Figure5Rightandwronguseofintermediatepits(a)Intermediatepitforpullingcables(b)IntermediatepitforchangeofconduitdirectionNotes:1.
Asize2("P2")pitmaybeusedasanintermediatepitforlead-inconduittoasingledwelling.
Theminimuminternaldimensions(inmm)ofasize2pitare490Lx125Wx500D.
Thesepitsareusuallyround-endedasshownabove.
2.
Theconduitshouldbegluedtoabushthatisinstalledflushwiththeinsidewallofthepitexceptinhighlyreactivesoilswheretheconduitmaybeextendednomorethan50mminsidethepit.
Thebushorconduitmustbeatightfitthroughthepitwalltominimisetheentryofsiltintothepit.
3.
Thebottomedgeoftheconduitmustenterthepitnolessthan50mmabovetheinsidesurfaceofthebottomofthepit(thisistoreducetheriskofsiltordebrisenteringandcloggingtheconduitovertime).
4.
Wheremorethanoneconduitentersthesameendofthepit(e.
g.
forbranchingofconduitsasshowninFigure12onpage16),theconduitsmustbeseparatedatthepitbyatleast25mm.
4.
2.
7Useoflead-inconduits/pits/cablesLead-inconduitmustnotbeusedforcustomercabling(e.
g.
forprivatecablingtoanotherbuildinginthepremises).
Customercablingmustbeinstalledinseparateconduitbutmaysharethelead-intrench.
Separateconduitmustbeprovidedfortheinstallationofcustomercablingbetweenbuildings.
Lead-inpitsshouldnotbeusedforcustomercablingunlessthisisunavoidable(e.
g.
duetolimitedspaceforlocatingpits),inwhichcaseonlylead-inpitssuppliedandinstalledbythebuilder,ownerorcustomermaybesharedwithcustomercabling.
Insuchcases,thecustomercablingmustbeclearlylabelledinthepit.
Lead-inpitsinstalledbythecarrier(i.
e.
withthecarrier'smarkings)mustnotbeusedforcustomercabling.
4.
3Propertyentrypoint4.
3.
1DescriptionThepropertyentrypointisthepointwherethecarrier'slead-incablingwillentertheprivatelandinwhichthebuildingislocated,includinganylandoccupiedincommonwith,orsharedwith,multipleoccupants(e.
g.
landcontrolledbyabodycorporate);andanyprivateeasementorrightofway(e.
g.
adriveway).
Thecarrierdeterminesthelocationofthepropertyentrypointbasedonthelocationofthenearestsuitablelead-incableconnectionpoint.
Whereradiotechnologyisusedtosupplyaservicetothepremises,thepropertyentrypointisthebaseoftheradioshelterorantennastructurefromwhichthecablingrunstothebuilding.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE10/784.
3.
2UrbanresidentialareasInurbanresidentialareas,undergroundlead-incablingistypicallyfedfromapitorpoleinthestreetorapubliceasementadjacentto(usuallyattherearof)theproperty.
Insomecases,thepropertyentrypointlocationwillbeevidentfromthelocationofthetelecommunicationspitsandmaybeconfirmedbydiggingatthepropertyboundarytolocatethe"starterconduit".
Inothercases,thelocationofthepropertyentrypointmaynotbeobviousandtherelevantcarriermayneedtobeconsulted.
TypicalstreetcabledistributionarrangementsfornewurbanresidentialestatesareillustratedinFigure6andFigure7.
Figure8showstypical"starterconduit"locations.
4.
3.
3Commercial/IndustrialandruralareasThecabledistributionarrangementsforhomeslocatedincommercial/industrialareasandruralcommunitiesmaydifferfromthearrangementsshowninFigure6andFigure7,andarenotspecificallycoveredbythisdocument.
Youshouldseekadvicefromtherelevantcarrierastothelocationofthepropertyentrypointinsuchcases.
ForTelstracontactdetails,see4.
4.
6.
Figure6Typicaltelecommunicationsstreetdistributioncablingfornewurbanresidentialestatesusingsingle-sideddistributionwithpitsonbothsidesofthestreetNotes:1.
Thelead-incablemaybecoiledupinthenearestpitreadytopullthroughthelead-inconduittothebuilding.
Thecableisonlytobepulledinbythecarrier'sinstaller.
Otherpersonsarenotauthorisedtoopenthepitortopullinthelead-incable.
2.
Thestarterconduitsshouldextendatleasttothepropertyboundaryandmayextendonetotwometresintotheproperty(seeFigure8).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE11/78Figure7Typicaltelecommunicationsstreetdistributioncablingfornewurbanresidentialestatesusingsingle-sideddistributionwithpitsononesideofthestreetonlyNotes:1.
Thelead-incablemaybecoiledupinthenearestpitreadytopullthroughthelead-inconduittothebuilding.
Thecableisonlytobepulledinbythecarrier'sinstaller.
Otherpersonsarenotauthorisedtoopenthepitortopullinthelead-incable.
2.
Thestarterconduitsshouldextendatleasttothepropertyboundaryandmayextendonetotwometresintotheproperty(seeFigure8).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE12/78Figure8Typicalstarterconduitarrangements(urbanresidential)Notes:1.
Innewurbanresidentialestates,starterconduitswillusuallybeprovidedasshownandbeinstalledatleasttothepropertyboundarybuttheymayextendonetotwometresintotheproperty.
Theminimumdepthofcoverfortheseconduitsisnormally300mm—or450mmiftheconduitrunsparallelwiththepropertyboundaryforsomedistancebeforeitenterstheproperty.
2.
Wherepitsareonlyinstalledononesideofthestreet(seeFigure7),thestarterconduitsonthenon-pitsideofthestreetshouldstraddletheelectricitypedestalasindicatedinFigure7.
3.
"Pot-holing"(e.
g.
carefulhanddiggingwithawooden-handleshovel)maybenecessarytoconfirmthelocationofthestarterconduit.
Withnewbuildingconstruction,thestarterconduitmaybeexposedwhenthetrenchisbeingdugfortheelectricitymains.
4.
4Lead-incablingroute4.
4.
1Copperlead-incablingBydefault,anylead-incablingthatisnotbeingprovidedinadesignatedFTTPestateisdeemedtobecoppercabling.
Withcopperlead-incabling,separationfromelectricalpowerhazardsandtheabilitytoprovideeffectivelightningsurgesuppressionareprimaryconsiderationsindeterminingthelead-incablingroute.
Foratypicalurbanhome,thelead-incablingshouldtaketheshortestpracticablepathbetweenthestarterconduitandthesideofthebuildingwheretheelectricityenclosureislocated.
Complicationsmayarisewhere:thereismorethanonebuildinginthepremises;theelectricityenclosureislocatedatadetachedbuildingorstructure;orpowerisfedtothepremisesfromanearbyHVtransformer(ruralpremises).
TheflowchartinFigure14maybeusedtodeterminetheappropriatelead-incablingrouteforcopperlead-incabling.
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4.
2Opticalfibrelead-incabling(FTTP)Anylead-intobeprovidedinadesignatedFTTPestateisdeemedtobeanopticalfibrelead-in.
Ifthereisanydoubt,thelead-inmustbetreatedasacopperlead-in.
Withopticalfibrelead-incabling,thereislessconcernaboutelectricalpowerhazardsandthereisnoneedtoconsiderlightningsurgesuppressionrequirements.
Nevertheless,anexternalFTTPNTDrequiresconnectiontothebuildingelectricalearthingsystem(althoughthelengthoftheearthingconductorisnotimportant,asisthecasewithlightningsurgesuppression).
Foratypicalurbanhome,thelead-incablingmaytaketheshortestpracticablepathbetweenthestarterconduitandthebuildingentrypointwhichshouldpreferablybeneartheelectricityenclosureforthereasonsgivenin4.
4.
3.
Conduitintegrityisveryimportantwithopticalfibrelead-incabling.
4.
4.
3SingledwellingForasingleresidentialdwelling,thebuildingentrypointshouldbelocatedneartheelectricityenclosure(meterpanelorswitchboard)toensurethatthecarrierhasfuturereadyaccesstothePCD,tofacilitateearthingofthePCDtothebuildingelectricalearthingsystemwherenecessaryandtokeepawayfromanygascylindersthatmaybeinstalledatthebuilding.
Accordingly,thelead-incablingshouldrunfromthestarterconduitatthepropertyentrypointtotheelectricityenclosurelocation—evenifthismeanstrenchingacrossthefrontofthebuilding.
RefertoFigure9.
Wheretrenchingacrossthefrontofthebuildingisnotpossible(e.
g.
duetodifficultterrain,extensivelandscaping,retainingwall,paveddriveway,swimmingpool,etc.
),thelead-incablingmaytakethemostdirectpathtothebuilding.
Insuchcases,caremustbetakentoavoidgascylinders(see6.
3.
3.
1)whicharenormallylocatedawayfromtheelectricityenclosure.
Also,ifthepremisesisinadefinedlightningrisksituationandisconnectedtoacoppernetwork,theremaybeaneedtoinstall"lead-inextension"cablingforthepurposeofprovidingeffectivelightningsurgesuppression(seeFigure10).
Figure9Typicalpathofthelead-incablingtoasingledwelling(a)Electricityenclosureonthesamesideofthebuildingasthepropertyentrypoint(b)ElectricityenclosureontheoppositesideofthebuildingtothepropertyentrypointNotes:1.
Thecablingpathmustbesuchthattherearenobendsintheconduitbetweenthestarterconduitandthebuildingfootingsunlessthesearemadeviaanintermediatepit(see4.
2.
3).
Sweepingcurvesthatwillallowthegluedlengthsofconduittobelaidinthetrenchwithoutsignificantstressarepermitted,asindicatedinexample(b)above.
2.
Wheretrenchingacrossthefrontofthebuildingisnotpossible(e.
g.
duetodifficultterrain,extensivelandscaping,etc.
),thelead-incablingmaytakethemostdirectpathtothebuilding.
Insuchcases,caremustbetakentoavoidgascylinders(see6.
3.
3.
1onpage40)whicharenormallylocatedawayfromtheelectricityenclosure.
Also,ifthepremisesisinadefinedlightningrisksituationandisconnectedtoacoppernetwork,theremaybeaneedtoinstall"lead-inextension"cablingforthepurposeofprovidingeffectivelightningsurgesuppression(seeFigure10).
3.
Thecarrier'sPCDwillbemountedonthewallbeloworbesidetheelectricityenclosurewherepracticable.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE14/78Figure10Lead-inextensioncablingforlightningsurgesuppression(copperlead-ins)Notes:1.
Wherecopperlead-incablingrunstotheoppositesideofthebuildingtotheelectricalswitchboardandlightningsurgesuppressionisrequired,theinstallationof"lead-inextensioncabling"willbenecessarytoachieveashortequipotentialbondingconductorbetweentheelectricalearthingsystemandthelightningsurgesuppressors.
Thetotallengthofthebonding/earthingconductorbetweentheearthingbarintheelectricalswitchboardandthelightningprotectorshouldpreferablybelessthan1.
5mbutinanycasemustnotexceed10m.
2.
Wherelead-inextensioncablingisrequired,suchcablingmusteitherbeinstalledontheexternalperimeterofthebuildingortheconductorsofthecableusedmustbeatleastdoublethecross-sectionalareaoftheexternallead-incablingconductorstominimisetheriskoffireundersurgeconditions.
Lead-inextensioncablingisinstalledbythecarrier.
3.
Moreinformationaboutlead-inextensioncablingisprovidedinTelstraSpecification012882,AlterationofTelstraFacilitiesinHomesandSmallBusinesses—InformationforCablingProviders.
4.
4.
4MultiplebuildingsIfthereisonlyonebuildinginthepremisesandthepropertyisatypicalurbanlot,skipto4.
4.
5(page18).
4.
4.
4.
1GeneralWherethepremiseswillcontaintwoormorebuildings(e.
g.
themainbuildingandan"outbuilding")andthebuildingswillrequireseparatetelecommunicationsservices,separatelead-incablingand/orseparatePCDsmayberequiredforeachbuilding.
Whetherornotseparatelead-incableswillberequiredmaydependonthelead-incablingtechnologyused,i.
e.
whetherthecableiscopperoropticalfibre.
Referto4.
4.
4.
2and4.
4.
4.
3.
4.
4.
4.
2Coppertwistedpairlead-incablingWithcopperlead-incabling,itisessentialthatthelead-incablingrunstothebuildingorstructurewheretheelectricalswitchboardislocatedtoensurethateffectivelightningsurgesuppressioncanbeprovidedifrequired.
Wheretheelectricityenclosureisinstalledataseparatedetachedbuildingorstructure(e.
g.
afence,poleorgarage),thelead-incablingmayneedtoberunviathebuildingorstructureatwhichtheelectricityenclosureislocated,asshowninFigure11andFigure13(a).
However,caremustbetakentoavoidanypolecarryingapowertransformerasshowninFigure13(b).
Insomecases,itmaybepossibleordesirabletorunseparatelead-incablingdirectlytoanoutbuilding,asshowninFigure12.
Theappropriatelead-incablingmethodmaybedeterminedusingtheflowchartinFigure14—buttherelevantcarriershouldbecontactedforadviceinsuchcasespriortodiggingthetrenchforthecabling.
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4.
4.
3Opticalfibrelead-incabling(FTTP)Withoptical(FTTP)networks,thelead-incablingmayrundirectlytothebuildingnomatterwheretheelectricalswitchboardislocatedbut,fortechnicalandsafetyreasons,theFTTPNTDmustbeinstalledatthesamebuildingwherethetelecommunicationsserviceistobeusedbytheoccupant.
However,whiletheFTTPNTDcannotbelocatedatadetachedbuildingorstructuresuchasaseparategarageorafence,aseparatePCD(i.
e.
asplicebox)maybelocatedatadetachedbuildingtoprovideanintermediateconnectionpoint,e.
g.
forbranchingofaseparateopticalfibrecablerunningtoaseparatebuilding.
RefertoFigure11forexamples.
Insomecases,itwillbemoreexpedienttorunseparatelead-incablingtotheseparatebuildingsinaccordancewithFigure12.
Figure11Typicalpathofthelead-incablingtoanoutbuildingortothemainbuildingwheretheelectricityenclosureislocatedatadetachedbuildingorstructure(a)Lead-incablingpathforthesupplyofaseparatetelecommunicationsservicetotheoutbuilding(b)Lead-incablingpathwheretheelectricityenclosureislocatedatadetachedbuildingorstructureNotes:1.
Anycustomercablingrequiredbetweenthemainbuildingandtheoutbuilding,e.
g.
foradditionalaccesspoints(telecommunicationsoutlets)asshowninarrangement(a),mustbeseparateanddistinctfromthelead-incabling,i.
e.
itmustuseseparatecableandconduittothelead-incableandconduit.
2.
ThePCDatthemainbuildingmaybeusedasabranchingpointforthelead-incablingtotheoutbuilding.
UnrestrictedaccesstothisPCDmustbeguaranteed;otherwisethearrangementshowninFigure12mustbeused.
3.
Thedetachedstructureatwhichtheelectricityenclosureislocatedmaybeagarage,shed,poleorfence.
Arrangement(b)mayapplyforcopperlead-incablingwherethisisrequiredinaccordancewiththeflowchartinFigure14.
Foropticalfibrelead-incabling,arrangement(b)wouldnormallyonlyapplywherethelead-incablingneedstobeinstalledintwosectionsduetositeconditions(e.
g.
retainingwalls)orbecauseaseparatetelecommunicationsserviceisrequiredineachbuilding.
4.
Thelead-incablingmustnotberunnearanypolethatcarriesaSWER(SingleWireEarthReturn)transformer,e.
g.
ruralproperties.
RefertoFigure13(b).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE16/78Figure12Lead-incablingdirectlytoanoutbuildingNotes:1.
Insomecases,thelead-incablingmayneedtobeprovidedviathemainbuildingfortechnicalreasons.
RefertoFigure11and,forcopperlead-incabling,theflowchartinFigure14todeterminewhetheritmaybeappropriatetoprovidelead-incablingviathemainbuildingratherthandirectlytotheoutbuilding.
2.
Somelead-intrenchingandconduitmaybecommon,usingapitwherethelead-incablesbranchoff.
3.
Anycustomercablingrequiredbetweenthebuildings,e.
g.
forintercommunicationbetweenthebuildings,mustbeseparatetothelead-incabling,i.
e.
usingseparatecableandconduittothelead-incableandconduit.
Figure13Typicalpathofthelead-incablingwherethepowermainsarefedfromanelectricityenclosureoratransformerlocatedonapole(acreageorruralproperties)(a)Lowvoltage(230Vto400Va.
c.
)powermainsconnectedviaanelectricityenclosureonapole(b)Highvoltage(e.
g.
11,000Va.
c.
)powermainsconnectedtoatransformeronapoleNotes:1.
Incase(a),ifcopperlead-incablingistobeinstalled,thecarriermayneedtoinstallPCDsatboththepoleandthebuildingforlightningsurgesuppressionpurposes.
Insuchcases,thePCDatthebuildingshouldalsobelocatedontheexternalwallascloseaspossibletotheelectricalswitchboardforeffectiveearthingoflightningprotectors.
2.
Incase(b),thecarrier'sPCDshouldbekeptatleast25mawayfromanypolecarryingaSWER(SingleWireEarthReturn)transformeroratleast15mawayfromanyotherelectricitytransformer.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE17/78Figure14Determiningtheappropriatelead-incablingroutetoaparticularbuilding(copperlead-incabling)Note:Foropticalfibrelead-incables(e.
g.
TelstraorNBNCoFTTPestates),thereisnoneedtousethisflowchart.
Thelead-incablingmayrundirectlytothebuildingwheretheserviceisrequiredperFigure9orFigure12.
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4.
5RuralareasInruralareas,NBNservicesarelikelytobesuppliedusingsatelliteorfixedwirelesstechnologies.
WhereTelstrainstallscoppercablingtosupplyastandardtelephoneservice,ADSLmaybeavailable.
Inruralareas,Telstranormallyburiesthelead-incabledirectlyinthegroundwithoutconduitandmarkstherouteatregularintervalswithsignsandmarkerposts.
Withdirectlyburiedcablethereisnolimitationonthenumberofbendsinthecabling.
However,thecablerouteshouldbeasdirectaspossiblebetweencableroutemarkerstoenablesubsequentlocationofthecableforrepairsandtoreducetheriskofaccidentaldamagetothecableduringanydiggingorcultivationactivities.
Wherepracticablethepathofthelead-incablingshouldfollowestablishedgeographicalfeaturessuchasprivateroadways,tracks,right-of-ways,fenceboundaries,etc.
tominimisetheriskofdisturbance.
Traversingofcultivatedlandorgrazingpaddocksshouldbeavoidedifpossible.
Wherethecablerunsbesideafenceorpropertyboundary,itmustbespacedatleast1mfromthefenceline(seealso4.
5.
6regardingproximitytopowerpoles).
Forlongcablerunsinruralareas,Telstramayopttoploughitslead-incabledirectlyintothegroundinsteadofrequiringtheprovisionofanopentrench.
Nevertheless,evenifthelead-incableistobeploughedin,thelastsectionoflead-incabletothebuildingshouldbeinstalledinconduit,soanopentrenchwillberequiredforatleastthelast3moflead-incablingtothebuilding.
AdviceshouldbesoughtfromTelstraastolead-intrenchingandconduitrequirementsinruralareas.
4.
4.
6ContactingTelstraaboutTelstralead-incabling4.
4.
6.
1Newlead-incablingWhereitisnecessarytocontactTelstrafortrenchingadvicefortheinstallationofnewlead-incabling,pleasecalltheappropriatenumberlistedbelowandfollowtheprocedurelisted.
Home.
Business.
Totheautomatedvoicegreeting,respond"connections",then"fixedlinephone",andthenyourtelephonenumberor"Idon'thaveone",asapplicable.
InformtheTelstraconsultantthatyouarecallingaboutpre-provisioningofyourpremises.
Statetheaddresstowhichtheenquiryisrelatedand,ifrequested,yournameandcontactnumber.
DiscussyourrequirementswiththeTelstraconsultantwhowilltellyouthenameandcontactnumberoftheTelstracontractorforyourarea.
CalltheTelstracontractorwhowillassistyouwithyourenquiry.
TheTelstraconsultantortheTelstracontractormayprovideyouwithareferencenumberforanyfollow-upenquiries.
1322001320004.
4.
6.
2Existinglead-incablingIfthelead-intrenchingisforrelocationofexistinglead-incabling(e.
g.
duetobuildingrenovationsorlandredevelopment),pleasecallthefollowingnumber:HomeorBusiness.
YouwillreceiveabriefautomatedvoicegreetingandthenyouwillbeswitchedthroughtotheTelstraNetworkIntegrityTeamwithwhichyoumaydiscussyourrequirements.
Youmaybegivenareferencenumberforanyfollow-upenquiries.
1800810443CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
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5Lead-intrench4.
5.
1Safety4.
5.
1.
1GeneralFornewbuildings,allservicecables,conduitsandpipesareusuallyexposedatthetimeofinstallationofthelead-incabling,minimisingthehazardsfortheinstallerandtheriskofdamagetootherservices.
Ideally,thelead-incablingshouldbeinstalledinthetrenchbeingdugfortheelectricitymains(see4.
5.
8).
Forestablishedpremises,thelocationofotherundergroundservicesmaybeunknown.
Accordingly,thetrenchshouldbedugbyanexperiencedpersonwhoisfamiliarwithundergroundservicearrangementsandwhoissuitablyaccreditedorlicensedwhererequiredbytherelevantauthority.
Carelessexcavationworkmayresultinpersonalinjury(e.
g.
throughcontactwithliveundergroundpowercables)orcostlydamagetoundergroundconduits,pipesandcables.
Serviceproviders(includingTelstra)mayseektorecovertheirentirerepairandassociatedcostsintheeventthatanydamageiscausedtotheirassets.
4.
5.
1.
2LocatingexistingundergroundservicesInordertoavoidpersonalinjuryordamagetoproperty,existingundergroundservicesshouldbelocatedandidentifiedbyanexperienced,suitablyaccreditedorlicensedperson.
Methodsforlocatingundergroundservicesinclude:Beforeanyearthbreakingactivityiscontemplated,contacttheDialBeforeYouDig(DBYD)"freecallservice",bytelephoning1100orbyvisitingtheDBYDwebsiteathttp://www.
1100.
com.
auforinformationaboutanyundergroundservicesthatmaybeinthevicinity(notethatwhileplanssuppliedbyDBYDmaycontaininformationaboutundergroundservicesonpublicoradjoiningland,youarenotrequiredtodigthetrenchoutsidetheboundaryofyourpremises,e.
g.
inpublicfootways,roadwaysorinneighbouringpremises).
Reviewanypropertydocumentation(e.
g.
buildingplans,electricalspecifications,plumbingplan).
Visuallyinspectthesitenotingthelocationofconduits,pipesorcablesemergingfromthegroundatbuildings,sheds,swimmingpools,fountains,electricbarbecues,gardenlights,externalpoweroutlets,etc.
Visuallyinspectthefootwayandvergeforthelocationofanypower,water,gas,sanitation,stormwater,drainageortelecommunicationsfacilities(e.
g.
pedestals,pits,poles,meters,kerbmarkers,drains,conduits/pipes,cables).
Ascertainthelikelypathofundergroundservicesusingtheaboveindicators.
Verifythelocationofservicesusingacablelocatororsimilarequipment,ifavailable(notethatexistingservicesmaynothavebeeninstalledinastraightline).
Verifythepresenceorabsenceofundergroundservicesatappropriatepointsalongthechosentrenchingroutebycarefulhanddigging(seebelow).
Wherethereisevidenceofundergroundservicesalongthechosentrenchroutebuttheirpositioncannotbeverifiedwithreasonableaccuracy,lookforamoresuitablerouteorexcavatebycarefulhanddiggingwhereuncertaintyexists.
Applythefollowingprecautionswhendiggingthetrench:Allowforatleast1mseparationfromanysuspectedundergroundservice.
Exceptwhereotherwiserequiredbythisdocument,e.
g.
ifaPCDistobeinstalledonapoleasshowninFigure13(a),keepatleastone1mawayfromanypole(toavoiddisturbanceofthepolefootingsandtoallowforfuturereplacementofthepolewithoutdisturbingthelead-incablingthatwillbeinstalledinthetrench).
Whenhanddigging,usenon-conductivetools(e.
g.
withwoodenhandles)andwearinsulating(rubber)boots.
Donotdigthetrenchanydeeperthantherecommendeddepth(seeTable1).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
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5.
1.
3ServiceidentificationAsaguideonly,thetypesofundergroundservicesthatmaybeencounteredonprivateproperty,andtheirtypicalcharacteristics,areasfollows:Electricalpower—powercablesmaybeinstalledinorangeconduitorcoveredbyorangemarkertapeorcoverstrip.
However,theymaybeincorrectlyinstalledingalvanisedironpipeorgreyconduitmarked"ELECTRICAL"withoutanorangecovering,sotakecareifyoucomeacrossanysuchpipesorconduits.
Gardenlighting—cablesforgardenlightingoperatingdirectlyfrommainspower(230Va.
c.
)maybeinstalledinthesamewayaselectricalpowercablesdescribedabove.
Cablesforgardenlightingthatoperatefromatransformer(e.
g.
12Va.
c.
)aredeemedtobenon-hazardousandmaybeburieddirectlyintheground.
Pipedfuelgas—moderngaslinesusuallyconsistofyelloworyellow-ochrepipe(orablackpipewithayellowstripe)orarecoveredbyayellowishmarkertape,butearlierinstallationsmayhaveusedcopperorsteelpipe.
Water—potablewaterisusuallysuppliedincopper,galvanisediron,blackpolyethyleneorwhiteplasticpipe.
Greywater(recycledwater)—pipesusedforrecycledwaterarelikelytobeblackpolyethylene(preferablywithavioletstripe),whiteplasticorvioletplasticpipe.
Sanitation(sewerage/wastewater)—modernsanitationpipesaregenerallywhiteorlightgreyplastic,butearlierinstallationsmayhaveusedearthenware(e.
g.
firedclay),concreteorasbestoscementpipes.
Stormwater—modernstormwaterpipesaregenerallylightcolouredplastic(e.
g.
white,grey,pink,blue)butearlierinstallationsmayhaveusedearthenware(e.
g.
firedclay),concreteorasbestoscementpipes.
Drainage(surfacewaterorseepagedrain)—pipesusedfordrainageofsurfaceorseepagewaterareusuallywhiteplasticorblackpolyethylenewithslotsorholescutinthem,butearlierinstallationsmayhaveusedearthenwareorconcretepipeswithoutseals,rubble(gravel)pitscoveredwithsheetingandsoiloracombinationofthese.
Ifyoudamageanyundergroundservice,donotattempttofixityourself.
Getanexperttorepairit.
4.
5.
2TrenchdepthThetrenchdepthrequirementsaredifferentforurbanandruralareas.
Youmayneedtocontacttherelevantcarrierforadviceastowhetherthecarrierdeemstheareatobeurbanorrural.
Totheextentthattheterrainwillreasonablyallow,theconduit(orcableinruralareaswherethecableisdirectlyburied)mustbeinstalledinauniformtrenchofthedepthspecifiedinTable1fortheapplicableconditions.
ThedepthspecifiedinTable1includesallowanceforthedepthoftheconduitorcableitself.
Inurbanareas,ifthelengthofthelead-inconduitwillexceed50m,pitsmustbeinstalledatintervalsofnomorethan50m.
Inruralareaswherethecableisnormallyburieddirectlyinthegroundwithoutconduit,pitswillusuallyonlybenecessaryforlongcablerunstojointcables(insomeareas,abovegroundjointingpostsmaybeusedforthispurposeinsteadofpits).
Thecarrier(usuallyTelstra)willinstallanynecessarycablejointingpitsorpostsasrequired.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE21/78Table1Trenchdepthrequired(Note1)UrbanareaRuralarea(cabledirectlyburiedwithoutconduit)For23mmIDconduitSoil&non-continuousrock(Note2)Continuousrock(Note3)Non-trafficablearea,drivewayorprivatefootway(Note4)Minimum350mm500mm(wheredeepcultivationploughingisnotlikely)250mmMaximum550mm650mm650mmRecommended(Note5)400mm550mm300mmPrivateroadway(Note4)Minimum500mmunderthelowestpoint500mmunderthelowestpoint(usuallythegutterorkerb)Notes:1.
Ifitisnotpossibletoprovidetherequireddepthduetogroundconditions,seekadvicefromthecarrier.
2.
"Soil"meanssand,gravel,clay,loamorsilt.
"Non-continuousrock"meansstonesandboulders("floaters")setinsoil.
3.
"Continuousrock"meansrockincontinuousstrataorprevailingonamassivescale.
Itcanonlyberemovedbyblastingandrippingorbyusingarockbreakerorarocksaw.
4.
Privatefootwaysandroadwaysaretypicallyfoundintown-house/villacomplexes,retirementvillages,caravanparks,etc.
Suchcomplexesdonotgenerallyhaveclearlydefinedfootways.
5.
Therecommendeddepthallowsforfluctuationsingroundconditionsandfortheuseofbeddingmaterial,ifrequired,toensurethattheminimumdepthofcoverabovetheconduitorcableisachieved.
4.
5.
3TrenchwidthFor23mmIDconduitordirectlyburiedruralcables,thewidthofthetrenchshouldbenolessthan100mmandshouldfollowthecontouroftheconduit/cablepathascloselyaspossible(see4.
2.
3onpage6).
4.
5.
4BeddingandbackfillmaterialTheinstalledconduitmustbesupportedfirmlyandevenlyonallsidesusingbeddingsandortheexcavatedmaterialaslongasthematerialdoesnotcontainanymetal,concrete,rocksorsimilarlyhardmaterialexceeding50mmincross-section.
Thebeddingandbackfillmaterialmustbefreeofanytimberorotherfibrousmaterialthatmaydecomposeorattracttermites.
4.
5.
5RetainingwallsandembankmentsWherethereis,orwillbe,aretainingwallorembankmentinthepathofthelead-incabling:(a)Iftheverticalheightoftheretainingwallorembankmentdoesnotexceed1m,thetrenching/conduitmaycontinueunderthewallorembankmentatagradualinclinetoresumetheappropriatedepthsetoutinTable1onthehighsideofthewall/embankment(seeFigure15).
Alternatively,thetechniquedescribedin(b)maybeapplied.
(b)Iftheverticalheightoftheretainingwallorembankmentexceeds1m,thetrenching/conduitmustendatthefootoftheretainingwallorembankmentandrecommenceatthehighsideofthewall/embankmentatthedepthsetoutinTable1(seeFigure16).
(c)Ifthewallorembankmentisatagradualinclinetothehorizontal,thetrenching/conduitshouldfollowtheinclineascloseaspracticabletotheappropriatedepthsetoutinTable1(seeFigure17).
Note:Ifonesideofthewallorembankmentisonpublicproperty(suchasafootway)oraneighbouringproperty,thetrenching/conduitonthatsideofthewall/embankmentisthecarrier'sresponsibility.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE22/78Figure15Lead-inconduitarrangementwherearetainingwallorembankmentdoesnotexceedaverticalheightof1mNotes:1.
Thetechniquemaybeappliedeitherbeforeoraftertheretainingwallisinstalledoranembankmentiscreated.
2.
Foranexistingretainingwallorembankment,thetechniqueshowninFigure16maybeapplied.
Figure16Lead-inconduitarrangementwherearetainingwallorembankmentexceedsaverticalheightof1mNote:Thecarriermayinstallametalcoverstripovertheconduitonthesurfaceoftheretainingwallasamowerguard.
Figure17Lead-inconduitarrangementforagraduallyslopingretainingwallorembankmentNote:Thetrenchingshouldfollowthecontourofthefinishedgroundlevelwithinthecurvature(flexing)constraintsoftheconduit.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE23/784.
5.
6ProximitytopowerpolesLead-intrenchingshouldbekeptatleast1mawayfromanypowerpoles(includingpolesusedforlighting)toallowforfuturereplacementofthepolewithoutdisturbingthelead-incabling—exceptincaseswheretheelectricityenclosureisinstalledonthepoleanditisnecessarytorunthelead-incablingviaaPCDonthepolesupportingtheelectricityenclosure.
RefertoFigure13(a)andFigure14.
4.
5.
7TrenchingoutsidethepremisesYourpremisesincludescommonproperty(e.
g.
controlledbyabodycorporate)oraprivateeasementorrightofway(e.
g.
foradriveway).
Youmustobtainpermissionfromthebodycorporateorowneroftheeasementorrightofwaybeforetrenchingthroughit.
Donotdigthetrenchoutsidetheboundaryofyourpremises,e.
g.
inapublicfootway,roadwayorinneighbouringpremises.
Trenchingoutsideyourpremisesissubjecttolandaccesscoderequirementsandisthecarrier'sresponsibility.
4.
5.
8SharedtrencharrangementsFornewbuildingconstruction,lead-incablingmaybeinstalledinasharedtrenchwithanotherservice(preferablytheelectricitymains)toreducecostsandminimisethewidthoftheservicecorridorthroughtheproperty.
TrenchsharingarrangementsareillustratedinFigure18toFigure20.
Wherethetrenchissharedwithmorethanoneotherservice,theirrespectiveseparationsmustbemaintained.
Localauthorityrequirements,ortherequirementsoftheotherutility,mayprecludeasharedtrenchwithsomeservices.
ForTelstralead-incabling,noseparationisrequiredfromtheconduitsorcablesofanothertelecommunicationsserviceunless:separationisrequiredbytheowneroftheothertelecommunicationsservice;ortheothertelecommunicationsserviceisaconduitorcableofanothercarrier,inwhichcaseaminimumradialclearanceof100mmisrequiredinaccordancewithACIFIndustryCodeC524,ExternalTelecommunicationCableNetworks.
Note:NBNComayrequireothertelecommunicationsconduitstobeseparatedfromtheirlead-inconduits.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE24/78Figure18SharedtrenchwithLV(lowvoltage)electricity(e.
g.
normaldomesticsingle-phaseorthree-phasepowermains)(a)Electricalcableinorangeconduit(b)ElectricalcablephysicallyprotectedbymeansotherthanorangeconduitNotes:1.
Noseparationisrequiredifthelead-incableisinstalledinwhiteconduitandtheelectricalcableisinstalledinorangeconduit.
Atleast100mmseparationisrequirediftheelectricalcableisinstalledinorangeconduitandthelead-incableisdirectlyburiedwithoutconduit(e.
g.
ruralareas).
Thetelecommunicationsconduitorcableshouldbeinstalledabovetheelectricalconduit.
2.
Orangemarkertapeisrequiredwheretheprotectivebarrierisnotorangeincolour.
Thelead-inconduitmustbeinstalledabovetheelectricalcable/conduitandseparatedfromitbyaminimumdistanceof100mmwhetherornotthelead-incableisburiedinconduit.
3.
Lead-incablingmustnotshareatrenchwithunprotectedelectricalcable(e.
g.
notinorangeconduitornotcoveredbyconcrete,approvedbricksetc.
)orelectricalcablethatisnotidentifiedbyorangeconduit,orangecoverstripororangemarkertape.
Insuchcasesthelead-incablemustbeinstalledinaseparatetrench.
4.
Insomeruralareas,Telstrainstallsaguardwireabovethecabletoprovideadditionalprotectionagainstlightninggroundstrikes.
However,thisdoesnotaffectthetrenchdepthrequirementsortheseparationdistancesrequiredfromotherservices.
5.
Lead-incablingmustnotbeinstalledinasharedtrenchwithHV(highvoltage)electricitycabling(i.
e.
cablecarryingavoltageexceeding1000Va.
c.
).
Figure19Sharedtrenchwithwaterandsanitarypipes(a)Waterservicepipe(b)Sanitaryplumbing/drainagepipeNote:Thedepthsshownforwaterpipeandsanitaryplumbing/drainagepipeareprovidedforguidance.
Thedepthsstatedaretheminimumspecifiedintherelevantstandardsforburialofthepipeonprivateproperty.
Therequiredminimumdepthmayvaryaccordingtoexposureofthelocationtovehiculartrafficorthetypeofpipeused.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE25/78Figure20Sharedtrenchwithstormwaterandgaspipes(a)Stormwaterdrainagepipe(b)GasservicepipeNotes:1.
Thelead-inconduit/cablemustnotbeinstalledabovethestormwaterdrainagepipe(thisisarequirementofAS/NZS3500.
3).
2.
Thedepthsshownforstormwaterpipeandgaspipeareprovidedforguidance.
Thedepthsstatedaretheminimumspecifiedintherelevantstandardsforburialofthepipeonprivateproperty.
Therequiredminimumdepthmayvaryaccordingtoexposureofthelocationtovehiculartraffic,thetypeofpipeusedor,inthecaseofgaspipe,theservicepressure.
4.
5.
9Exclusive(separate)trenchWhereitisnotpossibletouseasharedtrenchwithanotherservice,thelead-incablingmustbeinstalledinanexclusive(separate)trench.
Forparallelrunswithservicesotherthanelectricalcables,theminimumseparationfromtheseservicesmustbeinaccordancewith4.
5.
8.
Forparallelrunswithelectricalcables,theminimumseparationbetweenthelead-incableorconduitandtheelectricalcable/conduitmustbeinaccordancewithTable2andFigure21.
WheretheTelstraconduitcrossesthepathofanotherservice,thecrossovermustcomplywith4.
5.
10.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE26/78Table2Separationfromelectricity—exclusivetrenchLV(Note1)HV(Note2)Withprotectivecovering(Note3)Withoutprotectivecovering(Note4)Withprotectivecovering(Note3)Withoutprotectivecovering(Note4)Minimumseparationdistance"D"(seeFigure21)100mm300mm300mm450mmNotes:1.
LV(LowVoltage)istypicallyusedforelectricitymainssupplytosingledwellings(i.
e.
230Va.
c.
single-phasepoweror400Va.
c.
three-phasepower).
2.
HV(HighVoltage)istypicallyusedforelectricitymainssupplytolargemulti-residentialorlargecommercialpremises(e.
g.
11,000Va.
c.
powertoanHVtransformer).
3.
Foranexclusivetrench,trytokeepatleast300mmawayfromLVand450mmfromHVwhetherornottheelectricityhasaprotectivecovering.
Wherethereisanydoubtastowhethertheelectricityis,orwillbe,physicallyprotectedinaccordancewithAS/NZS3000,aminimumseparationdistanceof300mmfromLVor450mmfromHVmustbemaintained.
4.
Installationofundergroundelectricalcableincustomerpremiseswithoutaprotectivecoveringisnotallowableundertheelectricalwiringrules(AS/NZS3000).
However,theremaybecaseswhereAS/NZS3000doesn'tapplyorunprotectedcableisincorrectlyinstalled.
Figure21Separationfromelectricalconduitorcable—exclusivetrenchNote:Thetrenchmustbelocatedsuchthatdistance"D"(refertoTable2)ismaintainedbetweentheelectricalconduitorcableandthelead-inconduit/cable.
Thisdistancemaybemeasuredradiallyinanydirectionfromtheelectricalconduit/cable.
4.
5.
10CrossoverswithotherservicesWherethelead-incablingcrossesanotherservice,separationfromtheotherserviceatthecrossovermustbeinaccordancewithTable3.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE27/78Table3SeparationatcrossoverswithotherserviceswithincustomerpremisesOtherserviceLead-inseparationrequirementsLVelectricalcablewithaprotectivecoveringThelead-incablingmustbeseparatedfromtheelectricalcablebyatleast100mmatthecrossover,andshouldcrossabovetheelectricalcable(seeFigure22).
Thelead-incablingmayonlycrossundertheelectricalcableifaconcreteprotectivecoveringisinstalledabovetheelectricalcableatthecrossoverinaccordancewithFigure25.
LVelectricalcablewithoutaprotectivecovering(Note1)Thelead-incablingmustcrossatleast300mmabovetheelectricalcable(seeFigure23)unlessaprotectivecoveringofconcreteisprovidedovertheelectricalcable600mmeachsideofthecrossingasshowninFigure24,inwhichcasea100mmseparationisallowable.
Ifitisnecessaryforthelead-incablingtocrossundertheelectricalcable:itshouldonlybeinstalledbyboring;aconcreteprotectivecoveringmustbeinstalledabovetheelectricalcableatthecrossoverinaccordancewithFigure25;andaminimumseparationdistanceof300mmmustbemaintainedfromtheelectricalcableatthecrossover.
HVelectricalcablewithaprotectivecoveringThelead-incablingmustbeseparatedfromtheelectricalcablebyatleast300mmatthecrossover,andshouldcrossabovetheelectricalcable(seeFigure22).
Thelead-incablingmayonlycrossundertheelectricalcableifaconcreteprotectivecoveringisinstalledabovetheelectricalcableatthecrossoverinaccordancewithFigure25.
HVelectricalcablewithoutaprotectivecovering(Note1)Thelead-incablingmustcrossatleast450mmabovetheelectricalcable(seeFigure23)unlessaprotectivecoveringofconcreteisprovidedovertheelectricalcable600mmeachsideofthecrossingasshowninFigure24,inwhichcasea300mmseparationisallowable.
Ifitisnecessaryforthelead-incablingtocrossundertheelectricalcable:itshouldonlybeinstalledbyboring;aconcreteprotectivecoveringmustbeinstalledabovetheelectricalcableatthecrossoverinaccordancewithFigure25;andaminimumseparationdistanceof300mmmustbemaintainedfromtheelectricalcableatthecrossover.
WaterservicepipeThelead-incablingmustcrossatleast100mmbelowthewaterpipeatananglenotlessthan45°andshouldbecoveredbywhitemarkertapecomplyingwithAS/NZS2648.
1laid150mmabovethelead-incablingforatleast1meithersideofthecrossing(Note2).
Sanitaryplumbing/drainagepipeThelead-incablingmustcrossatleast100mmabovethepipeatananglenotlessthan45°andshouldbecoveredbywhitemarkertapecomplyingwithAS/NZS2648.
1laid150mmabovethelead-incablingforatleast1meithersideofthecrossing(Note2).
StormwaterdrainagepipeThelead-incablingmustcrossatleast100mmbelowthepipeatananglenotlessthan45°andshouldbecoveredbywhitemarkertapecomplyingwithAS/NZS2648.
1laid150mmabovethelead-incablingforatleast1meithersideofthecrossing(Note2).
GasservicepipeThelead-incablingmustcrossatleast100mmabovethepipeatananglenotlessthan45°andshouldbecoveredbywhitemarkertapecomplyingwithAS/NZS2648.
1laid150mmabovethelead-incablingforatleast1meithersideofthecrossing(Note2).
TelecommunicationsThelead-incablingmustcrossatleast100mmaboveorbelow(whicheverisexpedient)theothertelecommunicationsconduitorcableandshouldbecoveredbywhitemarkertapecomplyingwithAS/NZS2648.
1laid150mmabovethelead-incablingforatleast1meithersideofthecrossing(Note2).
Notes:1.
Installationofundergroundelectricalcableincustomerpremiseswithoutaprotectivecoveringisnotallowableundertheelectricalwiringrules(AS/NZS3000).
However,theremaybecaseswhereAS/NZS3000doesn'tapplyorunprotectedcableisincorrectlyinstalled.
2.
MarkertapethatcomplieswithAustralianStandardAS/NZS2648.
1,UndergroundmarkingtapePart1:Non-detectabletape,isrequiredtobeatleast75mmwide(preferably100mmor150mmwide)withblackblockletteringatleast25mmhigh.
Thetextshouldcontain"COMMUNICATION"or"TELECOMMUNICATION"toidentifytheservice.
Thetextmustberepeatedatintervalsof1morless.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE28/78Figure22CrossingaboveelectricalcablewithaprotectivecoveringthatcomplieswithAS/NZS3000requirementsFigure23CrossingaboveelectricalcablewithNOprotectivecoveringNote:Installationofundergroundelectricalcableincustomerpremiseswithoutaprotectivecoveringisnotallowableundertheelectricalwiringrules(AS/NZS3000).
However,theremaybecaseswhereAS/NZS3000doesn'tapplyorunprotectedcableisincorrectlyinstalled.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE29/78Figure24CrossingaboveelectricalcablewithaconcreteprotectivecoveringthatcomplieswithAS/NZS3000requirementsinstalledatthecrossingNote:Theconcretecoveringistoprotectagainstaccidentalcontactwiththeelectricalcableifexcavatingalongthepathofthelead-incablingsubsequenttoitsinitialinstallation.
Figure25CrossingunderelectricalcableNotes:1.
Lead-incablingshouldonlybeinstalledunderelectricalcableduringboring.
IfaconcreteprotectivecoveringtoAS/NZS3000requirementshasnotbeenprovidedabovetheelectricalcable,aconcretestripatleast150mmwideand75mmthickmustbeprovided600mmeachsideofthecrossing.
2.
Theconcretecoveringistoprotectagainstaccidentalcontactwiththeelectricalcableifexcavatingalongthepathofthelead-incablingsubsequenttoitsinitialinstallation.
4.
6Lead-incableThecarrierwillsupply,installandconnectthelead-incable.
Thecustomer'scablermustnotpullthelead-incablethroughtheconduitorconnectittothePCD.
Note:Lead-incablingmustnotbeusedforcustomercablingpurposes.
Customercablingmustbeseparateanddistinctfromlead-incabling.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE30/785AERIALLEAD-INCABLINGToskiptheaeriallead-incablinginformation,gotosection6(premisesconnectiondevices)onpage35.
5.
1GeneralWhereaeriallead-incablingistobeinstalledforconnectiontotheTelstranetworktosupplyaTelstraservice,thecustomerisrequiredtopaythecostoferection,byTelstra,ofanyTelstrapolesthatarerequiredwithintheconfinesofthecustomer'spremises,includingclearingoflandalongthecablingroute,diggingofthepoleholesandreinstatementofthelandafterthepolesareinstalled(suchpolesarenormallyonlyrequiredwithacreageorruralproperties).
Thesupplyofthepolesandthecable,andtheinstallationofthecableonthepoles,isincludedinthebasictelephonenewserviceconnectioncharge.
Telstrawillnotpermitthecustomerorathirdparty(e.
g.
acontractorofthecustomer'schoosing)toinstalltheTelstrapolesbutthecustomermayreduceTelstra'spoleinstallationchargesbyarrangingclearingoftheland,diggingtheholesandbackfillingthemunderTelstradirectionandsupervision.
5.
2Lead-incablingrouteTherouteofthelead-incablingwillbedeterminedbyTelstrainaccordancewiththeprinciplessetoutin4.
4.
1to4.
4.
4(pages12to16).
ThisinformationmaybeusedtodeterminethelikelyPCDlocation.
5.
3PrivatepolesandtreesForsafetyreasons,Telstrawillnotusetreesorcustomer-ownedpolestosupportnewaerialTelstralead-incabling.
Thisincludesanypolesinstalledbythecustomertosupportthepowermains.
5.
4PowerutilitypolesTelstramayagreetousepolesownedbyapowerutility(subjecttotheagreementofthepowerutility)becausetheyareregularlyinspectedandproperlymaintainedbythepowerutility.
However,theuseofsuchpolesisatTelstra'sdiscretion.
5.
5InspectionandmaintenanceofpolesTelstraregularlyinspectsTelstra-ownedpolesandreplacesanydefectivepolesatTelstra'scost.
5.
6ClearanceofaeriallinesfromthegroundTheminimumgroundclearancesrequiredforaeriallead-incablinginresidentialareasareasfollows(seeFigure26):overanyprivatelandnottraversablebyroadvehicles2.
7moveranyresidentialdriveway3.
5moveranycommercial/industrialdrivewayorprivateroadway4.
9m.
Note:Thisinformationisprovidedforguidanceonlyindeterminingwhetheraraiserpolemayberequiredatthebuilding(seeFigure29andFigure30).
Thelead-incablewillbeinstalledbytherelevantcarrier.
Figure26Minimumgroundclearancesforresidentialaeriallead-incablingNote:Atleast5.
5mclearance(orasspecifiedbytherelevanttransportauthority)isnormallyrequiredaboveanypartofafreeway,primaryarterialorcollectorroadorhighway.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE31/785.
7Clearancefromotherservices5.
7.
1Atpolesandin-spanTheminimumseparationdistancesrequiredfromlowvoltage(230VACsingle-phaseor400VACthree-phase)powermains,associatedfittingsandterminationsonpolesorin-spanaresetoutin5.
8(h).
5.
7.
2AtthebuildingSufficientseparationmustbeprovidedatthebuildingbetweenthelead-incableattachmentpointandanyinsulatedlowvoltagepowerserviceleadsuchthat600mmcanbemaintainedbetweenthepowercablesandfittingsandthebodyofapersonworkingonthelead-incabling.
Thismeansthatifthetelecommunicationsworkercannotsafelyaccessthelead-incableorattachmentonthesideofthecableorattachmentfurthestfromthepowercablesandfittings,aseparationofatleast1200mmwillberequiredbetweenthepowercablesandfittingsandthelead-incablesandfittingsatthebuilding.
5.
8UseofTelstrapolesforpowermainsWhileTelstrawillnotuseanypolesinstalledbythecustomertosupporttheLVpowermains,TelstrawillallowTelstra-ownedlead-inpolestobeusedtosupportthecustomer'slowvoltage(LV)powermains(i.
e.
230VACsingle-phaseor400VACthree-phase)underthefollowingconditions:(a)Onlypoleserectedatthecustomer'scost(asdescribedin5.
1)maybeused,i.
e.
polesinstalledinaccordancewiththestandardtermsandconditionsforthesupplyofaTelstratelephoneserviceassetoutinTelstra's"OurCustomerTerms"availableonlineatwww.
telstra.
com.
au/customer-terms/(thepolesaresuppliedatTelstra'scostbutareerectedatthecustomer'scost).
(b)Telstramustbenotifiedofthisrequirementpriortothecommencementofpoleinstallation.
(c)Thecustomermustpayanyadditionalcostincurredtomeetthisrequirement(e.
g.
anyextrapoleheightrequiredtoaccommodatethepowermains).
(d)ThecustomermustarrangeandpayfortheinstallationandmaintenanceofthepowermainsontheTelstrapoles,includingtransferofthepowermainstoanypolessubsequentlyreplacedbyTelstra.
(e)OnlyTelstrapoleslocatedwithintheboundariesofthecustomer'spremisesmaybeused.
Telstrapoleslocatedoutsidethecustomer'srealpropertyboundarymustnotbeusedtosupportthecustomer'spowermains.
(f)Highvoltagepowerlines(exceeding1000VAC)mustnotbeinstalledontheTelstrapoles.
(g)ThepowermainsmustbeinstalledabovetheaerialTelstracableataheightthat,takingintoaccounttherequiredseparationdistancesdescribedin(h),wouldenablethefollowingminimumgroundclearancestobemaintainedfortheTelstraaerialcabling(see5.
6):(i)Overanyprivatelandnottraversablebyroadvehicles2.
7m(ii)Overanyresidentialdriveway3.
5m(iii)Overanycommercial/industrialdrivewayorprivateroadway4.
9m(h)Thepowermains,associatedfittingsandterminationsmustbeseparatedfromtheaerialTelstracabling,associatedfittingsandterminationsbythefollowingminimumdistances:(i)InsulatedpowermainsAtthepole600mmInspan600mm(ii)UninsulatedpowermainsAtthepole1200mmInspan600mm(iii)Lightfitting,stayfittingorpowerconduitAtthepole50mmCablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
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9UseofTelstrapolesforcustomercablingTelstrawillallowTelstra-ownedlead-inpolestobeusedtosupportcustomercablingunderthefollowingconditions:(a)Onlypoleserectedatthecustomer'scost(asdescribedin5.
1)maybeused,i.
e.
polesinstalledinaccordancewiththestandardtermsandconditionsforthesupplyofaTelstratelephoneserviceassetoutinTelstra's"OurCustomerTerms"availableonlineatwww.
telstra.
com.
au/customer-terms/(thepolesaresuppliedatTelstra'scostbutareerectedatthecustomer'scost).
(b)OnlyTelstrapoleslocatedwithintheboundariesofthecustomer'spremisesmaybeused.
Telstrapoleslocatedoutsidethecustomer'spropertyboundarymustnotbeusedforcustomercabling.
(c)ThepolesmustbeofsufficientheightandtheTelstralead-incablemustbeinstalledonthepolesatsufficientheighttoallowinstallationofthecustomercablinginaccordancewith(d),(e),(f)and(g).
(d)ThecustomercablingmustbeinstalledbelowtheaerialTelstracabling.
(e)ThecustomercableandassociatedpolefittingsmustbeseparatedfromtheTelstracableandassociatedpolefittingsbyatleast300mmatthepole.
(f)Thecustomercablemustbeseparatedin-spanfromtheTelstracablebyatleast300mm.
(g)ThecustomercablingmustbeinstalledinaccordancewiththerelevantrequirementsoftheACMAwiringrulesincludingminimumgroundclearances(currentlythesameasdescribedin5.
6).
(h)ThecustomercablemustnotbeinstalledwithinanyTelstraundergroundconduitorpitorwithinanyTelstraconduitinstalledonthepole.
5.
10AerialcableattachmentatthebuildingThecableattachmentpointshouldbeascloseaspossibletothebuildingelectricityenclosuretofacilitatelocationofthePCDinaccordancewithsection6.
Thelocationandheightofthepointofattachmenttothebuildingorotherstructuremustallowaroutefromthepoletothebuildingthat:doesnotcrossanyadjacentproperty;isunobstructedbyexistingtreesorfoliage;andiscapableofmaintainingthespecifiedgroundclearancesandseparationfrompowercablesdescribedin5.
6and5.
7.
Note:Thelocationofthecableattachmentpointmustalsotakeintoaccountanyplannedstructuraladditionstothepremises,futuretreegrowthorprospectiveplantingofanytreesalongtheproposedcablepath.
Thecableattachmentpointatthebuildingmustbewithinreachofastandardone-personextensionladderthatisabletobesafelyerectedandsecuredatthesite.
Theattachmentmustbemadeattheperimeterofthebuilding(e.
g.
fascia,bargeboardorexternalwall)andnotatanypointontheroof.
Thepreferredmeansofattachmentofaeriallead-incabletothebuildingistoasolidtimberfasciaorbargeboardorametalfascia/bargeboardbackedbystructuraltimber.
Thestructuralmemberintowhichtheattachmentismademustbeofsufficientstrengthtowithstandatensionof2000Newtons(approximately200kgf).
Theproposedpointofcableattachmentwiththerequiredstructuralintegrityshouldbemarkedonthebuildingplanorthebuildingitselfbythebuilder.
Uptothreecablesofthefollowingdescription(inanycombination)maybeattachedtothesameattachmentpoint:2-pairlead-incablewithintegralbearer(ALIC—AerialLead-InCable)RG6orRG11coaxial"messenger"cable(i.
e.
withintegralbearer)single-coreopticalfibrecablewithintegralstrengthener(s).
ThevariousmeansofattachingaerialtelecommunicationscablestobuildingsareillustratedinFigure27toFigure30.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE33/78Figure27AttachmentofaerialcabletothefasciaNotes:1.
Thisisthepreferredmeansofattachmenttothebuildingifthefasciahassufficientstructuralintegrityandtheaerialcablewillhavesufficientgroundclearance.
2.
Ifthebuildinghasbeenpreparedinaccordancewith7.
4.
4(page52)or7.
5.
4(page58),thelead-incablemaybepulledthroughtheconcealedconduittotheCUEorPCD.
3.
Foranestablishedbuilding,thelead-incablewillusuallybeextendedtothePCDviaconduitfixedtotheexternalsurfaceofthebuilding.
Figure28AttachmentofaerialcabletothesoffitbearerNotes:1.
Thismethodofattachmentmaybeusedifthefasciahasinsufficientstrengthtosupporttheaerialcableattachment—aslongasthecablewillnotrubagainstthefasciaorgutterandtherewillbesufficientgroundclearanceifthismethodisused.
2.
Ifthebuildinghasbeenpreparedinaccordancewith7.
4.
4(page52)or7.
5.
4(page58),thelead-incablemaybepulledthroughtheconcealedconduittotheCUEorPCD.
3.
Foranestablishedbuilding,thelead-incablewillusuallybeextendedtothePCDviaconduitfixedtotheexternalsurfaceofthebuilding.
4.
Ifthebuildinghasbeenpreparedinaccordancewith7.
4.
4or7.
5.
4,thetiecable(s)maybepulledthroughtheconcealedconduittotheCCP.
Otherwise,thetiecable(s)mayneedtoberunviasurface-runconduit.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE34/78Figure29AttachmentofaerialcabletoaraiserpoleattachedtothefasciaNotes:1.
Araiserpolemustbeusedwhereinsufficientgroundclearancecanbeobtainedbyattachingtheaerialcabledirectlytothefascia.
Theraiserpolemaybeattachedtothefasciaasshownaboveifithassufficientstructuralintegritytosupportthepole.
Thelengthoftheraiserpolewillnotexceed1200mmandisinstalledbythecarrier.
2.
Ifthebuildinghasbeenpreparedinaccordancewith7.
4.
4(page52)or7.
5.
4(page58),thelead-incablemaybepulledthroughtheconcealedconduittotheCUEorPCD.
3.
Foranestablishedbuilding,thelead-incablewillusuallybeextendedtothePCDviaconduitfixedtotheexternalsurfaceofthebuilding.
4.
Ifthebuildinghasbeenpreparedinaccordancewith7.
4.
4or7.
5.
4,thetiecable(s)maybepulledthroughtheconcealedconduittotheCCP.
Otherwise,thetiecable(s)mayneedtoberunviasurface-runconduit.
Figure30Attachmentofaerialcabletoaraiserpoleattachedtotherafter/trussNotes:1.
Araiserpolemustbeusedwhereinsufficientgroundclearancecanbeobtainedbyattachingtheaerialcabledirectlytothefascia.
Wherethefasciadoesnothavesufficientstructuralintegritytosupportthepole,thepolemustbeattachedtotheroofrafterortrussasshownabove.
Thelengthoftheraiserpolewillnotexceed1200mmandisinstalledbythecarrier.
2.
Ifthebuildinghasbeenpreparedinaccordancewith7.
4.
4(page52)or7.
5.
4(page58),thelead-incablemaybepulledthroughtheconcealedconduittotheCUEorPCD.
3.
Foranestablishedbuilding,thelead-incablewillusuallybeextendedtothePCDviaconduitfixedtotheexternalsurfaceofthebuilding.
4.
Ifthebuildinghasbeenpreparedinaccordancewith7.
4.
4or7.
5.
4,thetiecable(s)maybepulledthroughtheconcealedconduittotheCCP.
Otherwise,thetiecable(s)mayneedtoberunviasurface-runconduit.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE35/786PREMISESCONNECTIONDEVICE(PCD)6.
1DescriptionThepremisesconnectiondevice(PCD)facilitatesthetransitionfromoutdoor(undergroundoraerial)cablingtoindoorcabling.
Nomatterwhatwirelinetelecommunicationsnetworktechnologyisusedtosupplythetelecommunicationsservices,thelead-incablingwillbeconnectedtoaPCDattheexternalwallofthebuildingandwillbeinterconnectedtotheindoorterminationequipmentviaoneormoreindoor"tie"cable(s).
ThePCDmayormaynotbethenetworkboundaryandmayvaryinformandfunctiondependingonthetelecommunicationsnetworktechnologyused.
TypicalPCDsareshowninFigure31andFigure32.
Figure31TypicalPCDsthatarenotthenetworkboundaryTelstraFTTP(opticalfibre)spliceboxNBNCoFTTP(opticalfibre)spliceboxThisboxis260Hx250Wx72DThisboxis210Hx175Wx75DStandardTelstraHFC(coaxial)isolationboxLargerTelstraHFC(coaxial)isolationboxThisboxis215Hx136Wx63DThisboxis250Hx270Wx85DNotes:1.
Theabovedevicesareshowninrelativesize.
ThesedevicesarenotNTDsanddonotrequireanearth.
Theyareinstalledbythecarrier.
2.
ThelargerTelstraisolationboxmaybeusedforhousinganRFamplifier(e.
g.
formorethan3coaxialoutlets).
3.
Atleast150mmofclearspaceisgenerallyrequiredonallsidesofallPCDsforcablingandaccesspurposes.
ThisclearancedistancemaybereducedforaPCDhousedinacombinedutilitiesenclosure(see6.
2)orbetweentwoPCDslocatedonthesamewall(referto7.
5.
6.
3onpage64foranexample).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE36/78Figure32TypicalnetworkboundaryPCDs(NTDs)TelstraADSLNTDfortwistedpairlead-incableTelstraFTTPNTDforopticalfibrelead-incableThisNTDis260Hx250Wx72DThisNTDis345Hx305Wx110DNotes:1.
TheaboveNTDsareshowninrelativesize.
Theyrequireahard-wiredcommunicationsearth(seesection9).
2.
TheNTDontheleftmaybeinstalledbythebuilder'sorcustomer'sregisteredcabler.
RefertoTelstraDocumentNo.
012688,TelstraNetworkTerminationDevice—InformationforCablingProviders.
3.
TheNTDontherightisinstalledbyTelstra.
TelstrawillceaseusingtheseNTDsfornewinstallationsinlate2013andwilluseindoorNTDsinstead.
RefertoDocumentNo.
017153a00formoreinformation.
4.
Atleast150mmofclearspaceisgenerallyrequiredonallsidesoftheNTDforcablingandaccesspurposes.
ThisclearancedistancemaybereducedforanNTDhousedinacombinedutilitiesenclosure(see6.
2)orbetweentheNTDandanotherPCDlocatedonthesamewall(referto7.
5.
6.
3onpage64foranexample).
6.
2Externalcombinedutilitiesenclosure(CUE)6.
2.
1DescriptionWithnewhomes,itispreferableforthebuilderorelectriciantoprovideaCombinedUtilitiesEnclosure(CUE)forterminationofthebuildingentryconduitandhousingofthePCD.
RefertoFigure33.
TheCUEallowsthecablingandequipmentforvariousutilitiessuchaselectricity,telecommunicationsand,optionally,gasorwater,tobehousedinasingle,compartmentalisedenclosure.
ACUE:improvestheoverallappearanceofthebuilding;simplifiestheconduitandcablingarrangements,especiallywherethetelecommunicationsnetworktechnologyisunknownorislikelytochange;providesconvenientstoragespaceforslacktelecommunicationscables(i.
e.
withintheCUE);avoidsproblemswithmountingPCDsonlow-densitycladdingmaterialssuchaspolystyrene;providesadditionalprotectionforthePCDandassociatedcablesfromtheweather,hosingorimpactfromgardentools,balls,toys,etc.
;facilitateseffectiveearthingofthePCD,whererequired;improvesaccessibilitybyservicepersonnel;andassistsinimplementingstandardisedinstallationpractices.
TheCUEmustbeinstalledbytheelectricianaspartoftheelectricalinstallation.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE37/78Figure33Combinedelectricityandtelecommunicationsenclosure(installedbytheelectrician)Note:TheequipotentialbondingconductorfortheCET(CommunicationsEarthTerminal)mustbeinstalledbytheelectrician.
TheCETmaybeinstalledbyeithertheelectricianorthetelecommunicationsinstaller.
Seesection9fordetails.
6.
2.
2CUErequirementsTelstra'srequirementsforCUEsaresetoutinTelstraSpecification010062,CombinedUtilitiesEnclosures(Issue4).
TheessentialTelstrarequirementsforCUEsareasfollows:(a)TheminimuminternaldimensionsofthespaceinwhichthePCDistobehousedmustbe480Wx415Hx140D(inmm).
Thedepth("D")ismeasuredbetweenthefaceofthebackboarddescribedin(c)andtheinsidesurfaceofthedoor.
(b)Thetelecommunicationscompartmentdooraperturemustbeatleast375Wx375H(inmm).
(c)Abackboardofinsulatingmaterial(e.
g.
timber)thatisatleast400mmwideand18mmthickmustbeprovidedformountingofthePCDandmustextendatleast350mmbelowthehorizontalplaneofthetopedgeofthedooraperture.
(d)Asturdymetalplatemustbeprovidedoveranyelectricalconduitsorcablesthatrunbehindthetelecommunicationsbackboarddescribedin(c).
Aminimumclearanceof20mmmustbeprovidedbetweenthemetalplateandtherearofthebackboardforthepassageofcables.
(e)Suitablecableentryfacilitiesorknock-outsmustbeprovidedandmustbeaccessiblewithinthetelecommunicationscompartment.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE38/78B&REnclosures(http://www.
brenclosures.
com.
au/nbn-enclosure.
htm)manufacturesarangeofCUEscomplyingwithTelstraSpecification010062,andtheseareavailablethroughelectricalsuppliers.
Suitableenclosuresareasfollows:StateModelNo.
DescriptionHeight(mm)Width(mm)Depth(mm)NSWCSN0401Houseselectricalmeters&comms934482255CSN042201Houseselectricalmeters,switchboard&comms1105482255NTCSQ0401Houseselectricalmeters&comms934482255CSQ042201Houseselectricalmeters,switchboard&comms1106482255QLDCSQ0401Houseselectricalmeters&comms934482255CSQ042201Houseselectricalmeters,switchboard&comms1106482255TASCST022102Houseselectricalmeters,switchboard&comms1105482255VICCSV022102Houseselectricalmeters,switchboard&comms1105482255WhereaCUEhasbeenprovidedandmeetsthecarrier'srequirements,thePCDwillbemountedinsidetheCUEasillustratedinFigure33.
6.
3Whereanexternalcombinedutilitiesenclosure(CUE)isnotprovided6.
3.
1GeneralWhereaCUEhasnotbeenprovided,thePCDmustbeinstalledindependentlyontheexternalwall.
ThePCDmustbeinstalled:ataminimumheightof500mmandamaximumheightof1300mmfromfinishedgroundlevel,measuredtothebottomofthelowestpartofthePCD;ataminimumdistanceof150mmfromtheelectricityenclosureoranyotherbuildingfixture,measuredtoanypartofthePCDwiththecoverclosed;andoutsideanygasexclusionzonedescribedin6.
3.
3.
1(page40).
TheserequirementsaresummarisedinFigure34.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE39/78Figure34PCDinstallationfornewbuildingswhereaCUEisnotprovidedNotes:1.
Allmeasurementsareinmm.
2.
Inareasthatdonothaveareticulatedgasservice(includinghomeswherecylindergaswillbeused),thepreferredlocationforthePCDfornewbuildingsunderconstructionisbelowtheelectricityenclosureataheightof500mmto600mmabovefinishedgroundlevel.
LocatingthePCDbelowtheelectricityenclosureminimisestheriskofobstructionbysuchthingsasdownpipes,windows,doors,adjoiningfences/gatesandgascylinders.
3.
Inareasthathaveareticulatedgasservice,thegasmeterisusuallyinstalledinthespacebelowtheelectricityenclosure,inwhichcasethepreferredlocationforthePCDisatleast150mmtotheleftorrightoftheelectricityenclosureandatthesameheightastheelectricityenclosure(usuallyabout1200mmfromfinishedgroundlevel).
Inpre-wiringsituations,ifthePCDistobelocatedbesidetheelectricityenclosureitwillbenecessarytoascertainthelocationofdownpipes,doors,windows,adjoiningfences,etc.
fromthebuildingplantodeterminewhichsideoftheelectricityenclosuretoinstallthePCDandthebuildingentryconduits.
4.
IfthePCDrequiresanearthconnection(refertoFigure32),thisshouldbemadedirectlytotheelectricalearthelectrodeifitisaccessible;otherwise,asuitablebondingconductormustbeprovidedbytheelectricianfromthemainearthingbaroftheelectricalswitchboardinaccordancewithsection9.
5.
WheremorethanonePCDisinstalled(e.
g.
onefortwistedpairlead-incableandoneforcoaxiallead-incable),theyshouldbepositionedatleast50mmapart(measuredbetweenthenearestpartofeachPCDwiththecoverclosed)evenifthesamelead-inconduitwillbeusedtopullintheseparatelead-incables(seeFigure53onpage65foranexample).
6.
3.
2Low-densitywallcladding(e.
g.
polystyrene)Iflow-densitycladdingsuchaspolystyreneistobeused,suitablebackingboardmustbeprovidedbythebuilderbehindthecladdingatthePCDlocationtosupportthePCD.
Insuchcases,theintendedpositionforthePCDshouldbemarkedonthebuildingplanortheactualbuildingbythebuilder.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE40/786.
3.
3PCDpositioning6.
3.
3.
1SeparationfromgasfacilitiesThePCDmustbepositioned:atleast500mmaboveor1000mmtothesideofanygasmeterorassociatedfittinginaccordancewithFigure35outsidetheconicalexclusionzonearoundanygascylinderasshowninFigure36.
Lead-inconduit/cablingandtieconduit/cablingrunningto/fromthePCDmustbeseparatedfromanygaspipe,meter,cylinderorassociatedfittingbyaminimumdistanceof150mm(see8.
2.
2.
2onpage70).
Figure35ExclusionzoneforgasmetersFigure36ExclusionzoneforgascylindersExchangecylinderIn-situfillcylinderA500mm1500mmB1500mm3500mmC500mm500mm6.
3.
3.
2SeparationfromwaterservicesThePCDmustbepositionedatleast300mminanydirectionfromawatermeterorwatertap.
Lead-inconduit/cablingandtieconduit/cablingrunningto/fromthePCDshouldbeseparatedfromanywaterpipe,watermeterorassociatedfittingbyaminimumdistanceof50mm(see8.
2.
2.
2onpage70).
6.
3.
3.
3Newbuildings6.
3.
3.
3.
1AreaswithreticulatedgasInareasthathaveareticulatedgasservice,thegasmeterisusuallyinstalledinthespacebelowtheelectricityenclosure(meterpanelorswitchboard).
Insuchareas,thepreferredlocationforthePCDisatleast150mmtotheleftorrightoftheelectricityenclosureandatthesameheightastheelectricityenclosure(usuallyabout1200mmfromfinishedgroundlevel).
Inpre-wiringsituations,ifthePCDistobelocatedbesidetheelectricityenclosureitwillbenecessarytoascertainthelocationofdownpipes,doors,windows,adjoiningfences,etc.
fromthebuildingplantodeterminewhichsideoftheelectricityenclosuretoinstallthePCDandthebuildingentryconduits.
6.
3.
3.
3.
2AreaswithoutreticulatedgasInareasthatdonothaveareticulatedgasservice(includingahomewherecylindergaswillbeused),thepreferredPCDlocationfornewbuildingsunderconstructionisbelowtheelectricityenclosureataheightof500mmto600mmabovefinishedgroundlevel.
LocatingthePCDbelowtheelectricityenclosurereducestheriskofobstructionbydownpipes,windows,doors,adjoiningfences/gates,gascylinders,etc.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE41/786.
3.
3.
3.
3PCDlocationawayfromtheelectricityenclosureWheretheelectricityenclosureisontheoppositesideofthebuildingtothesidewherethepropertyentrypointislocatedandtheundergroundoraeriallead-incablecannotberunacrosstothissideofthebuilding(e.
g.
duetodifficultterrain,extensivelandscaping,retainingwall,paveddriveway,swimmingpool,trees,etc.
),thePCDmaybelocatedatthesideofthebuildingnearesttothepropertyentrypointaslongasthebuilder,electricianorcustomerprovidesasuitableearthingconductoratthePCDlocationifanearthisrequired(seeFigure32andsection9).
Insuchcases,caremustbetakentoavoidgascylinders(see6.
3.
3.
1)whicharenormallylocatedawayfromtheelectricityenclosure.
Also,ifthepremisesisinadefinedlightningrisksituationandwillbeconnectedtoacoppernetwork,theremaybeaneedtoinstallaPCDoneachsideofthebuildingjoinedby"lead-inextension"cabling(seeFigure10).
Foroptical(FTTP)networks,thePCDmaybelocatedontheoppositesideofthebuildingtotheelectricityenclosureifthisisexpedient—aslongasthebuilder,electricianorcustomerprovidesasuitableearthingconductoratthePCDlocationifanearthisrequiredandcareistakentoavoidgascylinders.
RefertoFigure32andsection9fordetails.
Note:Eventhoughopticalfibreisnotelectricallyconductive,opticalPCDsmustbeseparatedfromgasfacilitiesinaccordancewith6.
3.
3.
1incasefusionsplicingoffibresneedstobecarriedoutatthePCD.
6.
3.
3.
4EstablishedbuildingsForestablishedbuildings(e.
g.
buildingreconstructionorrenovation),itwillnormallybenecessaryforthePCDtobelocatedbeside(notbelow)theelectricityenclosureor,insomecases,neartheexistingbuildingentrypointwhichmaynotbeneartheelectricityenclosure.
Inallcases,thePCDmustbeinstalledwithintheheightlimitationsshowninFigure34andmustbeseparatedfromgasandwaterservicesinaccordancewith6.
3.
3.
1and6.
3.
3.
2.
Asuitableearthing/bondingconductormustbeprovidedforconnectiontothePCD,ifrequired(refertoFigure32andsection9).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE42/787BUILDINGENTRYCONDUITS7.
1DescriptionBuildingentryconduitsaretheconduitsthatprovideforthepenetrationofthetelecommunicationscablesintothebuilding.
Theconduitsmustallowcablestobepulledthroughthemwhilepreventingtheentryofwaterorvapourintothebuildingorthecovertentryoftermites.
Forsometypesofbuildingconstruction(e.
g.
brickveneer),conduitsmaybepartiallyconcealedinsidethewallcavity;otherwisetheymaybefastenedtothesurfaceoftheexternalwall.
Eachmethodhasitsadvantagesanddisadvantages.
Concealedconduitsproduceaneaterresult—aslongastheconduitsarepositionedcorrectly.
Theintegrityofthebuildingentryconduitsisveryimportanttoensurethatcablescanbepulledthroughthemwithoutstressordamage.
Inparticular,theconduitsandbendsmustbecapableofallowinganopticalfibrecablewithafactory-fittedconnectorwithinaprotectivebootorhaulingsocktopassthroughthem(see4.
2.
6onpage7).
Pre-formedbendsmustbeused—conduitmustnotbebentonsitewhetherornotthisisdonebytheapplicationofheatorusingabendingtool.
TheuseofsomeformofPremisesConnectionDevice(PCD)ontheexternalwallofthehomeisanessentialpartofthebuildingentryfacilities.
ThePCD:providesatransitionfromoutdoortypecabletoindoortypecable;supportsmitigationagainsttheentryofwaterandtermitestothebuildingviathelead-inconduit;facilitatesfuturerepairorreplacementofthetelecommunicationslead-incablingortiecabling;andprovidesanexternalaccesspointfortestingofcablesorservicesatthebuilding.
IfitisnotpossibletouseanexternalPCDforsomereason,therelevantcarriermustbeconsulted.
Undernocircumstancesshouldundergroundlead-inconduitterminateinsidethebuildingunlessa"drainagepit"isusedattheexternalwallofthebuildingtoreducetheriskofentryofwaterandtermitestothebuildingviatheconduit.
Referto7.
6(page68).
7.
2Lead-inentryconduit7.
2.
1ConduittypeForhomes,white,rigid(UPVC)plasticconduitandfittingswithaninsidediameter(ID)of23mmthatcomplieswith4.
2.
1and4.
2.
2isusedforinstallationofthelead-incable(s)betweenthepropertyentrypointandthePCD.
Nomorethantheequivalentoftwo90°bendsispermissibleatthebuilding,comprising:one300mmradiusbend(orequivalentwherecompositebendsareusedoverthefootings)intheundergroundportion;andone100mmradiusbendintheabovegroundportion(e.
g.
withinthewallcavity).
RefertoFigure37.
Note:Another300mmradiusbendmaybeusedatthestreetpit,makingatotalofthreebends(themaximumpermissible)betweencableaccesspoints(seeFigure4).
Flexibleconduitwithaminimumoutsidediameter(OD)of25mmmaybeusedontheexternalwalltoprotectthecablebetweenthepointwheretherigidconduitterminatesontheexternalwallandthePCD,aslongastheflexibleconduitcanbeseparatedfromtherigidconduitforfutureaccess.
Thisisforinformationonly—thecarrierwillinstallanyflexiblelead-inconduitthatisrequiredontheexternalwall.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE43/78Figure37Lead-inconduitandbendsatthebuilding(a)ConduitinstalledinthebuildingfootingsConcealedconduitSurfaceconduitor(b)ConduitinstalledoverthebuildingfootingsorNotes:1.
Nomorethantheequivalentoftwo90°bends,comprisingone300mmradiusbendundergroundandone100mmradiusbendaboveground,arepermissibleatthebuilding.
Another300mmradiusbendmaybeusedatthestreetpit,makingatotalofthreebends(themaximumpermissible)betweencableaccesspoints(seeFigure4).
2.
Onlypre-formedbendsmaybeused.
Conduitmustnotbebentonsite(e.
g.
byapplicationofheatorusingabendingtool).
Flexible/corrugatedconduitmustnotbeusedforthispurpose.
7.
2.
2Lead-inconduitpositioninginthebuildingfoundationsConduitforundergroundlead-incablingshouldbeinstalledinthebuildingfootingsbeforetheconcreteispoured.
Aconduit/bendassemblyshouldbelocatedinthebuildingfootingsinaccordancewithFigure38.
Otherwise,theconduitwillneedtobeinstalledoverthefootingslater,butitmayprotrudefromthewallasshowninFigure37(b).
Anyconduitinstalledinthebuildingfootingsmustcomplywith7.
2.
1.
Suitablelengthsofconduitmustbegluedtothebendusingsolventconduitcement.
Conduitofanyothersize(whetherithasalargerorsmallerdiameter)willnotbeuseablebythecarrier.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE44/78Figure38Lead-inbuildingentryconduitinstallation(a)Conduitandbendassembly(Note1)(b)Positioningofthelead-inconduit/bendassemblyinthebuildingfootingsNotes:1.
Theconduit/bendassemblymustbemadefromsuitablelengthsofwhite,23mmID,UPVCconduitcomplyingwith7.
2.
1gluedtoa300mmradiusbendusingsolventconduitcement.
ForTelstralead-incabling,theconduitsandbendsmaybemarked"Telstra"or"NBN".
Conduitsorbendsofthesameinsidediameterbutmarked"Communications"mayalsobeused—however,anyconduitorbendmarkedas"20mm"or"25mm"andincluding"2053"inthemarkings(i.
e.
manufacturedtoAustralianStandardAS/NZS2053)isphysicallyincompatiblewithTelstraandNBNConetworksandisnotsuitableforlead-inbuildingentryconduit.
2.
Theendoftheconduit/bendassemblyshouldbecappedto:preventtheentryofdebrisorsiltintotheconduitduringbuildingconstruction;andasasafeguardincaseitisneverusedtoensurethatitdoesnotprovideacorridorfortheentryofwaterortermitesintothewallcavity(thecapshouldbegluedtoanyconduitlaidinatrenchorpositionedinthewallcavity—tobecutawaylaterwhenjointingthelead-inconduitorthebendinthewallcavity).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE45/78Figure39BuildingentryconduitpositioningrelativetotheelectricityenclosureNotes:1.
Theconduitmayenterthebuildingfootingsfromanydirectionaslongasitispointedinthegeneraldirectionofthecarrier'spropertyentrypoint(ifitisnotalreadyjoinedtothelead-inconduitfromthepropertyentrypoint).
2.
WhereaCUEisnot,orwillnotbe,provided,theverticalsectionofthelead-inconduitmustbecorrectlypositionedinrelationtotheintendedPCDlocation,astheuseofflexibleconduitormorethanonebendwithinthewallcavityisnotpermittedforthelead-incabling.
7.
2.
3TermitebarriersVirtuallyallbuildingsinmainlandAustraliarequireatermitebarriertobeinstalledaroundtheperimeterofthebuildingoronisolatedpiers,postsorstumpsusedtosupportthebuildingorsuchthingsasverandasandstaircases.
Thepurposeofthebarrieristoimpedetermiteentrytothebuildingandtoensurethatanysheltertubesconstructedbytermitesoverthebarrierarevisible.
Commontermitebarriersconsistofexposedslabedge,stainlesssteelmesh,metalcapping,gradedstoneorchemicallytreatedsoil.
Whatevermethodisused,thelead-inconduitwillbridgeorbreachthetermitebarrierwheretheconduitentersthebuilding.
Termitescanbuildasheltertubearoundsomebarriersbuttheyarethenintheopenwheretheycanbedetectedmorereadilyduringregularinspectionsbyacompetentperson.
Bridgingorbreachingofthesetermitebarriersbysuchthingsasconduitsandcablesmaydefeattheprotectionmeasurestaken.
Fornewbuildingconstruction,itisimportantthatanyundergroundlead-inconduitbeinstalledatthebuildingfootingsbeforethetermitebarrierisinstalledsothattheconduitistreatedappropriatelybythetermitebarrierinstaller.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE46/78Forestablishedbuildings,anynewundergroundlead-inconduitinstalledwilleitherbridgeorbreachtheexistingtermitebarrier.
Wheretheconduitpenetratesthetermitebarrier(e.
g.
gradedstone,chemicallytreatedsoil),thebarriermustbereinstatedatthepenetrationpointbyaqualifiedtermitebarrierinstaller.
Wheretheconduitbridgesthetermitebarrier(e.
g.
exposedslabedge,stainlesssteelmeshormetalcapping),theconduitmustbeinstalledinawaythatdoesnotimpedeclearvisualinspectionofthetermitebarrierwhereitisbridged(e.
g.
itmustnotbefixedintoacorneragainsttwoadjoiningwallsoragainstanotherconduitorpipe).
Additionally,theconduitmustnotcoveranyweepholes.
7.
3Conduitfortiecabling7.
3.
1DescriptionTiecablingisthecablingbetweenthePCDandtheCCP.
Itmayconsistofcustomercabling,multi-coreDCpowercabling,extensionofthecarrier'slead-incabling,oracombinationofthese.
Fordetails,refertoDocumentNo.
017153a01,Cablingofpremisesfortelecommunications—Essentialinformationforhomecabling.
Atleastonewhite,rigid(UPVC)plasticconduitwithaminimuminsidediameter(ID)of23mmshouldbeprovidedbetweenthePCDandtheCCPor,ifthisisnotpossible,betweenthePCDandasuitableaccesspointforpullinginthetiecable(s),asshowninFigure40andFigure41.
Therequirementsforthetiecablingconduitsaresetoutin7.
3.
2.
Note:WherethePCDislikelytobeanoutdoorFTTPNTDoriftwoPCDswillbeinstalled,theprovisionofasecondconduitmayberequiredforcoaxialcabling(seeFigure1).
Theconduitforthetiecablingwill:provideapathwaybetweenthePCDandtheCCPfortheinstallationofthetiecablingeitherbeforeorafterbuildingcompletionandforreplacementofthecablingatsomefuturetimetoaccommodateanychangeintelecommunicationsnetworktechnology;protectthecablingfromdamageduringconstructionactivities;helptoensurethatthecablingisnotdislocatedorentombedinthewallcavityduringconstruction;ensurethatanyrequiredcableseparationrequirementsofthetelecommunicationsandelectricalwiringrulesaremet;whereaCUEisnotused,correctlypositionthecablingatthePCDlocation;andprotectthecablingfrompossiblerodentdamageafterconstruction(opticalfibrecablesinparticularmaybesusceptibletodamagebyrodentsduetotheabsenceofanelectricfieldaroundthecable).
7.
3.
2ConduitrequirementsTheconduitforthetiecablingistocomplywiththefollowing:White,rigid(UPVC)plasticconduitwithaminimuminsidediameter(ID)of23mmmustbeused(e.
g.
TelstraorNBN"20mm"conduitor32mmUPVC"Communications"conduittoAS/NZS2053).
Note:32mm(outsidediameter)conduitwon'tfitinsomeexternalwallcavities(e.
g.
withindouble-brickwallsorbetweenbracingplyandbrickveneer).
Checkwiththebuilderorbricklayerbeforeusing32mmconduit.
Theremustbenomorethan3x90°bendsbetweencablepullingpoints.
Eachbendmusthaveaninnerbendradiusof100mmorgreater.
A3mmpolypropylene,braidedcord(orequivalent)mustbethreadedthroughtheconduitandbendstobeusedasapull-cordforthetiecable(s).
Allconduitandfittingsmustbegluedtopreventthemcomingapart.
Theconduitmustberestrainedalongitslengthtopreventmovementwhilepullingcablein.
Orangeconduit,flexibleconduitoranyconduitmarked"ELECTRICAL"mustnotbeused.
7.
3.
3ConduitinstallationTheconduitshouldbeinstalledthroughtheroofspace(orthroughthefloorspaceoftheupperfloorofatwo-storeyhome).
Arrangetheconduitmarkingstobevisibletoanypersonworkingintheroofspaceafterbuildingcompletion.
Theconduitmaybeinstalledintheconcreteslabbutthiscarriesahighriskoferrorinpositioningtheconduitattheinternalwall(i.
e.
attheCCP)andtheconduitbeingwaterloggedduetorainduringconstructionwhichmayleadtoprematurefailureoftheinternaltiecable(s).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE47/78Figure40TypicalconduitinstallationfortiecablingincavitywallsNotes:1.
Foratwo-storeyhome,theconduitmaypassbetweenorthroughthebearersoftheupperfloor(subjecttocompliancewithbuildingcodes)orthroughtheroofspaceoftheupperstoreyaslongasthetotallengthofcablingbetweenthePCDandtheCCPwillnotexceed25munlessitiscertainthatanindoorFTTPNTDwillbeinstalled,inwhichcasethelengthshouldnotexceed40m.
TheCCPmaybelocatedinthelowerorupperfloor,whicheverisconvenient.
Wheresolidmasonryordouble-brickbuildingconstructionisused,itmaybenecessarytochasetheconduitintothewallsunlesssurface-mountedconduitortrunkingisacceptabletothecustomer(seeFigure41).
2.
Userigidconduitwithaminimuminsidediameter(ID)of23mm(e.
g.
TelstraorNBN"20mm"UPVCconduit).
Donotuseorangeconduit,flexibleconduitoranyconduitmarked"ELECTRICAL".
Extraconduit(s)mayberequiredforanycoaxialcables(seeFigure1).
3.
Usenomorethan3x90°bendsbetweencablepullingpoints.
Theinnerbendradiusofeachbendmustbe100mmorgreater.
Theconduitmustberestrainedalongitslengthtopreventmovementwhilepullingcablein.
4.
NormallytheCCPenclosurewouldbeinstalledbetweenwallstudsabovethenogging(about1200mmabovethefloor).
IftheCCPenclosurewillbelowerorhigher,thebottomoftheenclosureshouldbenolessthan350mmfromthefloorandthetopoftheenclosureshouldbenomorethan1800mmabovethefloor.
Whetherthepoweredelectronicdevicesaretobelocatedinsideoroutsidetheenclosure,theyshouldbeinstalledwithintherangeof350mmto1800mmfromthefloor(i.
e.
nopartofanydeviceshouldbeoutsidethatrange).
5.
WhereaCCPenclosureisnotinstalledbetweenthewallstuds,installamountingbracket100mmbelowtheendoftheconduitasaplacemarkerforthetiecable.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE48/78Figure41Typicalconduit/trunkinginstallationfortiecablingonsolidmasonryordouble-brickwallsNotes:1.
Foratwo-storeyhome,theconduitmaypassbetweenorthroughthebearersoftheupperfloor(subjecttocompliancewithbuildingcodes)orthroughtheroofspaceoftheupperstoreyaslongasthetotallengthofcablingbetweenthePCDandtheCCPwillnotexceed25munlessitiscertainthatanindoorFTTPNTDwillbeinstalled,inwhichcasethelengthshouldnotexceed40m.
TheCCPmaybelocatedinthelowerorupperfloor,whicheverisconvenient.
2.
Userigidconduitwithaminimuminsidediameter(ID)of23mm(e.
g.
TelstraorNBN"20mm"UPVCconduit).
Donotuseorangeconduit,flexibleconduitoranyconduitmarked"ELECTRICAL".
Extraconduit(s)mayberequiredforanycoaxialcables(seeFigure1).
3.
Usenomorethan3x90°bendsbetweencablepullingpoints.
Theinnerbendradiusofeachbendmustbe100mmorgreater.
Theconduitmustberestrainedalongitslengthtopreventmovementwhilepullingcablein.
4.
Thetrunkingmustbeaccessibleforremovalofthecoverandinsertionofthecable(s).
Theconduitandpull-cordmustextendintoanaccessiblepartofthetrunking.
Conduitmaybechasedintothewallorrunonthesurfaceofthewallinpreferencetousingsurface-mountedtrunking,aslongastheconduitcomplieswith7.
3.
2.
5.
ThebottomoftheCCPenclosureshouldbenolessthan350mmfromthefloorandthetopoftheCCPenclosureshouldbenomorethan1800mmabovethefloor.
Whetherthepoweredelectronicdevicesaretobelocatedinsideoroutsidetheenclosure,theyshouldbeinstalledwithintherangeof350mmto1800mmfromthefloor(i.
e.
nopartofanydeviceshouldbeoutsidethatrange).
6.
AholemustbedrilledthroughtheexternalwallfromthebottomofthePCDintothetrunkingataslightupwardangle.
Theholemustbeatleast20mmdiametertopassanopticalfibrecablefittedwithaconnector.
Extrahole(s)mayberequiredforanycoaxialcable(s)(seeFigure1).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE49/787.
4BuildingentryconduitarrangementswhereaCUEisusedIfacombinedutilitiesenclosure(CUE)isnotbeingused,skipto7.
5onpage55.
7.
4.
1GeneralUndergroundlead-incablingisusedinvirtuallyallnewdevelopments.
Aeriallead-incablingmaybeusedinestablishedareasorinnewdevelopmentswherethegroundconditionsprecludeundergroundcablingconstruction.
RigidconduitmustbeusedallthewaytothetelecommunicationscompartmentoftheCUE.
Allconduitjointsandfittingsmustbeglued.
Flexibleconduitshouldnotbeusedwithinbuildingcavitiesduetothedifficultyofpullingcablesthroughflexibleconduit.
7.
4.
2TiecablingConduit(s)forthetiecablingwillterminateintheCUEasshowninFigure42toFigure45.
Referto7.
3formoreinformationaboutconduitsfortiecabling.
7.
4.
3Undergroundlead-incablingUndergroundlead-inconduitwillterminatewithintheCUE,whichshouldbedesignedtoallowanywateremittingfromtheendoftheconduittodraintothebottom,frontedgeofthedooropening.
Toensurethatsuchwaterdoesnotdrainbackintothewallcavity,theoutersurfaceoftheconduitshouldbesealedwhereitpenetratestheCUE(e.
g.
usinganant-resistant,flexiblesealant).
Theendoftheconduitshouldterminatenomorethan20mmabovethepenetrationtotheCUEtoensurethatitisvisibleforinspectionunderthebackboardfortermiteactivity.
Figure42andFigure43showtypicalconduitarrangementsforcavitywall(e.
g.
brickveneerandtimberormetalframed)buildings.
Forbuildingsofsolidmasonryordouble-brickconstruction,refertoFigure41fortypicaltiecablingconduitarrangements.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE50/78Figure42ConduitarrangementsforaCUEinstallationonacavitywall—sideviewNotes:1.
Runtheconduitforthetiecablingtoeitherthesideortherearofthetelecommunicationscompartment,asappropriate.
Wheretheconduitrunsbehindtheenclosure,runitbetweenthestuds,notonthefrontofthestuds.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
2.
Securetheconduittothewallstudsand/ornoggingswithconduitsaddlesorhalf-saddles.
Glueallconduitandbendjointssothatthefittingswillnotcomeapartwhencablesarebeingpulledthroughthem.
3.
Thelead-inconduitmustnotbedrilledunderanycircumstances,asthismayallowthecovertentryofwaterortermitestothewallcavityviatheundergroundlead-inconduit.
4.
Thelead-inconduitshouldbesealedwhereitenterstheCUEtopreventanywateremittingfromtheconduitfromdrainingintothewallcavity.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE51/78Figure43ConduitarrangementsforaCUEinstallationonacavitywall—frontviewNotes:1.
Ifpossible,runtheconduittotheroofspaceatananglesothat:theconduitbendatthetopwillfitcomfortablybetweenthetopplateandtheroofbattens;andthecablingwillbeclearofthepowercablesrunningfromtheelectricitycompartmentintheroofspace.
Alternatively,theconduitmayrundirectlytotheCCPifitistobelocatedontheinternalsideofthesamewallonwhichtheCUEislocated.
2.
Whereitisnotpossibletoruntheconduitatanangle,runitverticallybesidetheenclosureorbetweenthewallstudsbehindit.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE52/787.
4.
4Aeriallead-incablingAeriallead-incablingisnormallyonlyusedinestablishedsuburbsorinruralareaswherethenatureoftheterrainprecludesundergroundcabling.
Aeriallead-inconduitwillterminatewithintheCUE,whichshouldbedesignedtoallowanyrainwaterthatgetsintotheconduitatthefasciatodraintothebottom,frontedgeoftheCUEdooropening.
Withaeriallead-incabling,thereisnoneedtoworryaboutinspectionoftheendoftheconduitfortermiteactivity.
Figure44andFigure45illustratetypicalconduitarrangementsforcavitywall(e.
g.
brickveneerandtimber/metalframed)buildings.
Forbuildingsofsolidmasonryordouble-brickconstruction,refertoFigure41fortypicaltiecablingconduitarrangements.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE53/78Figure44ConduitarrangementsforaCUEinstallationonacavitywall—buildingwith450mmto600mmeavesNotes:1.
Runtheconduitsforthelead-incablingandtiecablingtoeitherthesideortherearofthetelecommunicationscompartment,asappropriate.
Wheretheconduitsrunbehindtheenclosure,runthembetweenthestuds,notonthefrontofthestuds.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
2.
Fixthebendsfirmlytotheeavestrussasshownsuchthattheconduitishardupagainsttheinsideofthefascia.
100mmradiusbendsmaybeusedwhere300mmradiusbendswon'tfit.
Cuttheconduitflushwiththebottomofthefascia.
Allbendsmustbegluedtotheconduit.
3.
Securetheconduitstothewallstudsand/ornoggingswithconduitsaddlesorhalf-saddles.
Glueallconduitandbendjointssothatthefittingswillnotcomeapartwhencablesarebeingpulledthroughthem.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE54/78Figure45ConduitarrangementsforaCUEinstallationonacavitywall—buildingwithnarrowornoeavesNotes:1.
Runtheconduitsforthelead-incablingandtiecablingtoeitherthesideortherearofthetelecommunicationscompartment,asappropriate.
Wheretheconduitsrunbehindtheenclosure,runthembetweenthestuds,notonthefrontofthestuds.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
2.
Fixthetopbendasshownsuchthatthetopoftheconduitislevelwiththebottomofthefascia.
Cuttheconduitflushwiththeinsidefaceofthefascia.
Allbendsmustbegluedtotheconduit.
3.
Securetheconduitstothewallstudsand/ornoggingswithconduitsaddlesorhalf-saddles.
Glueallconduitandbendjointssothatthefittingswillnotcomeapartwhencablesarebeingpulledthroughthem.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE55/787.
5BuildingentryconduitarrangementswhereaCUEisnotusedIfacombinedutilitiesenclosure(CUE)isbeingused,gobackto7.
4onpage49.
7.
5.
1GeneralUndergroundlead-incablingisusedinvirtuallyallnewdevelopments.
Aeriallead-incablingmaybeusedinestablishedareasorinnewdevelopmentswherethegroundconditionsprecludeundergroundcablingconstruction.
Rigidconduitmustbeusedallthewaytotheexternalwallofthebuilding.
Allrigidconduitjointsandfittingsmustbeglued.
Flexibleconduitshouldnotbeusedwithinbuildingcavitiesduetothedifficultyofpullingcablesthroughflexibleconduit.
However,ifnecessaryflexibleconduitwithaminimumoutsidediameter(OD)of25mmmaybeusedontheexternalsurfaceofthebuildingaslongasitcanbeseparatedfromtherigidconduitforfutureaccessforpullingincables(thisisforinformationonly—thecarrierwillinstallanyflexiblelead-inconduitthatisrequiredontheexternalwall).
7.
5.
2TiecablingConduit(s)forthetiecablingwillterminatebelowthePCDasshowninFigure46toFigure49.
See7.
5.
5fordetailsaboutpositioningoftheconduitsatthePCDlocation.
Referto7.
3formoreinformationaboutconduitsfortiecabling.
7.
5.
3Undergroundlead-incablingUndergroundlead-inconduitmustterminateattheexternalwallofthebuildingtoallowanywaterorvapouremittingfromtheendoftheconduittodrainharmlesslyoutsidethebuildingandtoensurethattheconduitopeningisvisibletoenableinspectionfortermiteactivity.
Fornewbuildingsunderconstruction,thePCDshouldbelocatedeitherunderorbesidetheelectricityenclosureinaccordancewith6.
3.
1(page38).
WhereitisnotpossibletolocatethePCDneartheelectricityenclosure,referto6.
3.
3.
3.
3(page41).
Figure46andFigure47illustratetypicalconduitarrangementsforcavitywall(e.
g.
brickveneerandtimber/metal-framed)buildings.
Forbuildingsofsolidmasonryordouble-brickconstruction,refertoFigure41(page48)fortypicaltiecablingconduitarrangements.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE56/78Figure46Conduitarrangementsforanon-CUEinstallationonacavitywallundergroundlead-incabling—sideviewNotes:1.
Fornewbuildingsunderconstructioninanareathatdoesnothaveareticulatedgasservice(includinghomeswherecylindergaswillbeused),thePCDshouldbelocatedbelowtheelectricityenclosure,asindicatedabove,toavoidobstructionbysuchthingsasdownpipes,windows,doors,adjoiningfences/gatesandgascylinders.
Otherwise,thePCDshouldbelocatedbesidetheelectricityenclosure.
2.
Fixthehorizontalsectionofeachbendamultipleofthebrickspacingabovethebrickbase.
Forstandard230x110x76claybricks,thiswillbeamultipleof86mm,e.
g.
7bricksx86mm=602mm.
Inareasthathaveareticulatedgasservice,locatetheconduitstoeithersideof,andlevelwiththebottomof,theelectricityenclosure(seeFigure34onpage39and6.
3.
3.
3.
1onpage40).
3.
Wheretheconduitrunsbehindtheelectricityenclosure,runitbetweenthestuds,notonthefrontofthestuds.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
Securetheconduittothewallstudsand/ornoggingswithconduitsaddlesorhalf-saddles.
Glueallconduitandbendjointssothatthefittingswillnotcomeapartwhencablesarebeingpulledthroughthem.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE57/78Figure47Conduitarrangementsforanon-CUEinstallationonacavitywallundergroundlead-incabling—frontviewNotes:1.
Ifpossible,runtheconduittotheroofspaceatananglesothat:theconduitbendatthetopwillfitcomfortablybetweenthetopplateandtheroofbattens;andthecablingwillbeclearofthepowercablesrunningfromtheelectricityenclosureintheroofspace.
Alternatively,theconduitmayrundirectlytotheCCPifitistobelocatedontheinternalsideofthesamewallonwhichthePCDislocated.
2.
Whereitisnotpossibletoruntheconduitatanangle,runitverticallybesideorbehindtheelectricityenclosure.
Wheretheconduitrunsbehindtheenclosure,runitbetweenthestuds,notonthefrontofthestuds.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
3.
Fixthehorizontalsectionofeachbendamultipleofthebrickspacingabovethebrickbase.
Forstandard230x110x76claybricks,thiswillbeamultipleof86mm,e.
g.
7bricksx86mm=602mm.
Inareasthathaveareticulatedgasservice,locatetheconduitstoeithersideof,andlevelwiththebottomof,theelectricityenclosure(seeFigure34onpage39and6.
3.
3.
3.
1onpage40).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE58/787.
5.
4Aeriallead-incablingAeriallead-incablingisnormallyonlyusedinestablishedsuburbsorinruralareaswherethenatureoftheterrainprecludesundergroundcabling.
Fornewbuildingsunderconstructioninanareawhereaeriallead-incablingisused,thePCDmustbelocatedeitherunderoradjacenttotheelectricityenclosuresoastoprovideaccesstothePCDwithouttheuseofaladderandtosupportthepossibleconnectionofundergroundlead-incablingatsomefuturetime.
WhereitisnotpossibletolocatethePCDneartheelectricityenclosure,itmaybelocatedbelowthepointwheretheaerialcableattachestothebuildingaslongasitisinstalledwithintheheightlimitsdescribedinFigure34.
Referto6.
3.
3.
3.
3onpage41forotherrequirementsandprecautions.
Figure48andFigure49illustratetypicalconduitarrangementsforcavitywall(e.
g.
brickveneerandtimber/metal-framed)buildings.
Forbuildingsofsolidmasonryordouble-brickconstruction,refertoFigure41(page48)fortypicaltiecablingconduitarrangements.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE59/78Figure48Conduitarrangementsforanon-CUEinstallationonacavitywallaeriallead-incabling—buildingwith450mmto600mmeavesNotes:1.
Fornewbuildingsunderconstructioninanareathatdoesnothaveareticulatedgasservice(includinghomeswherecylindergaswillbeused),thePCDshouldbelocatedbelowtheelectricityenclosure,asindicatedabove,forsafeandeasyaccess,toavoidobstructionbysuchthingsasdownpipes,windows,doors,adjoiningfencesandgascylinders,andtofacilitatefutureundergroundlead-incabling.
Otherwise,thePCDshouldbelocatedbesidetheelectricityenclosure.
2.
Fixthebendsfirmlytotheeavestrussasshownsuchthattheconduitishardupagainsttheinsideofthefascia.
100mmradiusbendsmaybeusedwhere300mmradiusbendswon'tfit.
Cuttheconduitflushwiththebottomofthefascia.
Allbendsmustbegluedtotheconduit.
3.
Fixthehorizontalsectionofeachbendamultipleofthebrickspacingabovethebrickbase.
Forstandard230x110x76claybricks,thiswillbeamultipleof86mm,e.
g.
7bricksx86mm=602mm.
Inareasthathaveareticulatedgasservice,locatetheconduitstoeithersideof,andlevelwiththebottomof,theelectricityenclosure(seeFigure34onpage39and6.
3.
3.
3.
1onpage40).
4.
Wheretheconduitsrunbehindtheelectricityenclosure,runthembetweenthestuds,notonthefrontofthestuds.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
Securetheconduitstothewallstudsand/ornoggingswithconduitsaddlesorhalf-saddles.
Glueallconduitandbendjointssothatthefittingswillnotcomeapartwhencablesarebeingpulledthroughthem.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE60/78Figure49Conduitarrangementsforanon-CUEinstallationonacavitywallaeriallead-incabling—buildingwithnarrowornoeavesNotes:1.
Fornewbuildingsunderconstructioninanareathatdoesnothaveareticulatedgasservice(includinghomeswherecylindergaswillbeused),thePCDshouldbelocatedbelowtheelectricityenclosure,asindicatedabove,forsafeandeasyaccess,toavoidobstructionbysuchthingsasdownpipes,windows,doors,adjoiningfencesandgascylinders,andtofacilitatefutureundergroundlead-incabling.
Otherwise,thePCDshouldbelocatedbesidetheelectricityenclosure.
2.
Fixthetopbendasshownsuchthatthetopoftheconduitislevelwiththebottomofthefascia.
Cuttheconduitflushwiththeinsidefaceofthefascia.
Allbendsmustbegluedtotheconduit.
3.
Fixthehorizontalsectionofeachbendamultipleofthebrickspacingabovethebrickbase.
Forstandard230x110x76claybricks,thiswillbeamultipleof86mm,e.
g.
7bricksx86mm=602mm.
Inareasthathaveareticulatedgasservice,locatetheconduitstoeithersideof,andlevelwiththebottomof,theelectricityenclosure(seeFigure34onpage39and6.
3.
3.
3.
1onpage40).
4.
Wheretheconduitsrunbehindtheelectricityenclosure,runthembetweenthestuds,notonthefrontofthestuds.
Ensurethatthetelecommunicationscablesareseparatedfromthepowercablesinaccordancewith8.
2.
2.
1.
Securetheconduitstothewallstudsand/ornoggingswithconduitsaddlesorhalf-saddles.
Glueallconduitandbendjointssothatthefittingswillnotcomeapartwhencablesarebeingpulledthroughthem.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE61/787.
5.
5ConduitpositioningatthePCDlocationCablesshouldenterthebottomofthePCDtoensurethatwaterorvapourwillnotenterthedeviceviathecableentryhole.
Therefore,theconduitendsmustbepositionedatthebottomofthePCD.
AllTelstraPCDsaredesignedtoallowcablestopassbehindthem.
AnycablescomingdownthesurfaceofthewallfromabovethePCDmaypassbehindaTelstraPCDandthenloopupintothecableentryporttoformadrippoint.
TheNBNCoPCDpicturedinFigure31isnotdesignedtoallowcablestopassbehinditbutithasacableentryportatthetopofthePCD,whichmaybeusedbyNBNCoinstallersforcableentry.
However,cablesmustnotenterthetop,sideorrearofaTelstraPCDunderanycircumstances.
RefertoFigure50forcorrectconduitpositioningonacavitywallforallPCDtypes.
Moredetailedinformationisprovidedin7.
5.
6forvarioustypesofTelstraPCDs.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE62/78Figure50ConduitpositionforallPCDsoncavitywallswhereaCUEisnotused(a)Conduitspacing(b)FrontviewofaninstalledTelstraPCD(c)SideviewofthecompletedPCDinstallationNotes:1.
OptimalconduitpositioningvariesaccordingtothetypeofPCDtobeinstalled.
Spacingtheconduitsbetween0mmand80mmwillensurecompatibilitywithallPCDs.
2.
Theprovisionofasecondconduitforthetiecablingisrequiredwhere:thePCDislikelytobeanoutdoorFTTPNTDasshowninFigure32onpage36(inwhichcasebothconduitsshouldbesidebysideasdepictedin(a)above);orasecondPCDistobeinstalled,e.
g.
HFCisolationboxforCableinternetorpayTVasshowninFigure31onpage35(inwhichcasetheconduitsshouldbespacedatleast180mmapart—see7.
5.
6.
3andFigure53).
3.
TelstraPCDshaveaskirtonthecoverto:protectthecablesfromdirectexposuretosunlight;hidetheendsoftheconduitsfromgeneralviewwhileallowingwaterandvapourtoescapefromthelead-inconduitoutsidethePCD;andenablethelead-inconduitopeningtobereadilyinspectedfortermiteactivitybyapestinspector.
4.
Forpre-wiringinareasthatdonothavereticulatedgas(includinghomeswherecylindergaswillbeused),locatingthePCDbelowtheelectricityenclosurewillminimisetheriskofobstructionbysuchthingsasdownpipes,fences,gascylinders,etc.
Insuchcases,positioningtheconduitsbetween500mmand600mmabovefinishedgroundlevel(FGL)willensurethereissufficientclearancefromtheelectricityenclosurewhileprovidingreasonablePCDheightforaccess(seeFigure34onpage39and6.
3.
3onpage40).
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE63/787.
5.
6PCDpositioningovertheconduits7.
5.
6.
1GeneralSeparatePCDsmustbeprovidedfortwistedpair,coaxialandopticalfibrelead-incables.
WheremorethanonePCDisrequired(e.
g.
oneforatwistedpairlead-incableandoneforacoaxiallead-incable),thePCDsshouldbeseparatedbyaminimumdistanceof50mmmeasuredbetweentheclosestpartsofeachPCDwiththecoverclosed.
Thesamelead-inconduitmaybeusedtopullintheseparatelead-incables,soatleastoneofthelead-incableswillbeexposedbeforeitentersthePCD(referto7.
5.
6.
3foranexample).
Aminimumclearanceof10mm(20mmpreferred)mustbemaintainedbetweentheendofanyundergroundconduitandthePCDcableentrytoensurethatanywaterorvapourcomingoutoftheconduitcanescapeexternallyandtoenableanytermiteactivitytobevisibletoapestinspector.
Nominimumclearanceisrequiredfortheendofanyconduitprovidedforaerialcablingorindoorcabling.
7.
5.
6.
2ADSLNTDTheTelstraNTDusedforconnectionoftwistedpairlead-incablesiscolouredbeige(lightbrown)andhasa"Telco"(Telstra)sideanda"customer"(cabler)side.
Thecableentryportsarespacedat140mmcentres.
Lead-incableandtheearthingconductormustentertheleft-handcableentryportandcustomercablesmustentertheright-handcableentryport.
Thesecableentryarrangementscannotbereversed.
However,flexibilityisprovidedbytheabilitytopasscablesbehindandunderneaththeNTDwithoutbeingexposed(seeFigure52).
OptimalpositioningoftheNTDoverconduitsspacedat80mmisshowninFigure51.
TypicalpositioningoftheNTDoverconduitslocatedside-by-sideisshowninFigure52.
TheNTDisnormallysuppliedandinstalledbyTelstraatnochargefortheconnectionofagenericcablingsystemiftheNTDisrequestedbeforethetimeofinstallation.
Alternatively,aregisteredcablermaysupplyandinstallone,ifexpedient,inaccordancewithTelstraSpecification012688,TelstraNetworkTerminationDevice—InformationforCablingProviders.
Figure51OptimalTelstraADSLNTDpositioningoverconduitsspacedat80mm(a)Concealedlead-inconduit(Note1)(b)Surfacelead-inconduit(Note2)Notes:1.
Theendofanyconcealedlead-inconduitmustnotbecoveredbythebaseoftheNTDtoensurethatanywaterorvapourcomingoutoftheconduitcanescapeexternallyandtoenableanytermiteactivitytobevisibletoapestinspector.
2.
Surfacelead-inconduitmustterminate10mmto20mmshortofthecableentryhole.
InthecaseoftheADSLNTD,thiswillbeachievedifthelead-inconduitbuttsuptotheexternalcabletiefacility.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE64/78Figure52RunningcablebehindorbelowtheTelstraNTDtothecableentryport(conduitsspacedlessthan80mmapart)CablesrunningbehindtheNTDCablesrunningbelowtheNTDCableshiddenbythecoverNote:Ifthelead-inandcustomerconduitsareadjacenttoeachother,eitherthelead-incableorthetiecablesmayberunbehindorbelowtheNTDtotheappropriatecableentryport,asintheexamplesshownabove.
Eitherway,theskirtontheNTDcoverwillhidethecablesfromgeneralviewandprotectthemfromexposuretosunlight.
CablesrunningdownthewalltothetopoftheNTDmayrunbehindtheNTDtothebottomoftheNTDandthenloopupintothecableentrytoformadrippoint.
7.
5.
6.
3HFCisolationboxWhereHFCisavailableandistobeinstalledatthepremises,aseparateHFCisolationboxisrequiredforconnectionofthecoaxialcabling.
ThestandardTelstraisolationboxiscolouredgreyandhasthreecloselyspacedcableentryports,eachofwhichmaybeusedforeithertheoutdoororindoorcoaxialcableentry.
Anearthingconductorisnotrequiredforthisbox.
Alargerisolationboxmaybeusedinsomecircumstances(e.
g.
tohouseanRFamplifier),inwhichcasetheundergroundoraerialcoaxiallead-incablenormallyenterstheleft-handcableentryportandeachindoorcoaxialcableusuallyentersoneoftheright-handcableentryports.
TheisolationboxwillusuallybeprovidedinadditiontoanotherPCD,sotypicalpositioninginrelationtoaseparatePCDandtheconduitsisshowninFigure53.
TheisolationboxissuppliedandinstalledbyTelstra(forcableinternet)orFOXTEL(forpayTV),asapplicable,aspartoftheHFCservice.
Aregisteredcablerisnotauthorisedtoinstalltheisolationboxbutmayinstalltheindoorcoaxialcable(tiecable)toTelstraorFOXTELspecifications.
SeparateconduitsarerequiredforthecoaxialcablesrunningbetweentheisolationboxandtheCCP(forcableinternet)andbetweentheisolationboxandthewallplateattheentertainmentpoint(forFOXTEL).
Notes:1.
TelstracoaxialcablingspecificationsareprovidedinDocumentNo.
017153a00,Cablingofpremisesfortelecommunications—Acompleteguidetohomecabling.
2.
ItisnotnecessarytoextendtheconduitbeyondaccessibleroofspacefortheFOXTELcable(s)goingtotheentertainmentpoint(s)becausethiswouldprecludebranchingofmultiplecablestomultiplepointsand,inanycase,thiscablingshouldneverneedupgrading.
However,ifacableisdamagedduringorafterbuildingconstruction,theFOXTELrepairerisnotobligedtoconcealthereplacementcable.
Theboxshouldbespacedatleast50mmawayfromanyotherPCDandtheconduitsspaced180mmto250mmapartinaccordancewithFigure53.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE65/78Figure53OptimalTelstraHFCisolationboxspacingfromthebuildingentryconduits(a)Concealedlead-inconduit(b)Surfacelead-inconduitNotes:1.
TheHFCisolationboxshouldbespacedabout50mmtotheleftorrightoftheotherPCD,whichmeanstheconduitsforthetwistedpairandcoaxialtiecablesshouldbespacedbetween180mmand250mmapart,asshownabove.
2.
SeparatetiecablingconduitswillberequiredforthebroadbandinternetcableandanypayTV(FOXTEL)cablebecausetheywillhavedifferentdestinations(i.
e.
theinternetcablegoestotheCCPandthepayTVcablegoesdirectlytotheentertainmentpoint).
3.
Theendofanyconcealedlead-inconduitmustnotbecoveredbythebaseofthePCDtoensurethatanywaterorvapourcomingoutoftheconduitcanescapeexternallyandtoenableanytermiteactivitytobevisibletoapestinspector.
4.
Surfacelead-inconduitmustterminate10mmto20mmshortofthecableentryhole.
5.
AllTelstraPCDshavemountingfeetthatallowcablestopassbehindthePCD.
7.
5.
6.
4OutdoorFTTPNTDTheoutdoorTelstraFTTPNTDiscolouredgreyandhasa"Telco"(Telstra)sideanda"customer"(cabler)side.
Thecableentryportsarespacedat180mmcentres.
Thelead-incablemustentertheleft-handcableentryportandcustomercablesmustentertheright-handcableentryport.
Thesecableentryarrangementscannotbereversed.
Theearthingconductorshouldentertheleft-handcableentryportbutmayentertheright-handcableentryportifnecessary.
ThereisaseparatecableentryportforthePSUcable.
IfRFTV(free-to-airTVorpayTV)istobesuppliedfromtheNTD,two23mmIDconduitstoTelstraorNBNCo.
specificationwillberequiredbetweentheNTDandtheCCP.
TheNTDmustbepositioned50mmto100mmabovetheconduitstoaccommodatetheminimumbendradiusfortheopticalfibrelead-incable,inwhichcaseflexibleconduitmustbeused(bytheNTDinstaller)betweentherigidconduitsandthecableentryports.
TheNTDpositioningwithintheheightlimitsdescribedin6.
3.
1(page38)isshowninFigure54.
OptimalpositioningoftheNTDoverconduitsspacedat80mmisshowninFigure55.
TheNTDissuppliedandinstalledbyTelstraaspartoftheFTTPserviceandisnormallyinstalledatthetimeofserviceactivation.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE66/78Figure54OutdoorTelstraFTTPNTDinstallationwhereaCUEisnotusedFrontview(concealedlead-inconduit)Sideview(concealedconduit)Frontview(surfacelead-inconduit)Sideview(surfaceconduit)Notes:1.
Allmeasurementsareinmm.
2.
ForgeneralPCD(NTD)locationrequirements,referto6.
3.
1onpage38.
3.
Forconduitpositioninginthebuildingfootings,referto7.
2.
2onpage43.
4.
ForNTDearthingrequirements,refertosection9(page72).
5.
Spacingof50mmto100mmisrequiredbetweentheendofthelead-inconduitandtheNTDtomeetopticalfibrelead-incablebendrequirements.
TelstrawilluseflexibleconduittomakethefinalconduitconnectiontotheNTD.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE67/78Figure55OptimaloutdoorTelstraFTTPNTDpositioningoverconduitsspacedat80mm(a)Concealedlead-inconduit(b)Surfacelead-inconduitNotes:1.
FlexibleconduitsareusedbytheNTDinstallertojointherigidconduitstotheNTDtoprotectthecables.
Theflexibleconduitfortheundergroundlead-incablemustterminateatleast10mmshortofthecableentrygrommettoensurethatanywaterorvapourcomingoutoftheconduitcanescapeexternallyandtoenableanytermiteactivitytobevisibletoapestinspector.
2.
Theflexibleconduitforthetiecablesmaybuttuptothecableentrygrommet.
3.
Iftheconduitsarespacedlessthan80mmapart,theNTDwillbepositionedovertheconduits,bytheTelstrainstaller,soastoensurethattheminimumopticalfibrecablebendradiusismaintained.
7.
5.
6.
5FTTPPCD7.
5.
6.
5.
1GeneralWhereanindoorFTTPNTDistobeprovided,anoutdoorPCD(opticalfibresplicebox)willbeinstalledontheexternalwalltoconnecttheundergroundoraerialopticalfibrelead-incabletotheindooropticalfibrelead-incable.
7.
5.
6.
5.
2TelstraPCDTheTelstraFTTPPCD(foranindoorNTD)iscolouredgreyandusessimilarcasingtotheADSLNTDdescribedin7.
5.
6.
2onpage63butitonlyhasasingleaccesscover.
TherequirementsforpositioningthePCDabovetheconduitsareessentiallythesameasdescribedin7.
5.
6.
2.
However:ThePCDmayneedtobepositioned50mmto100mmabovetheconduitstoaccommodatetheminimumbendradiusfortheopticalfibrecables,inwhichcaseflexibleconduitmustbeused(bythePCDinstaller)betweentherigidconduitsandthecableentryports.
Eithercableentryportmaybeusedforeithertheunderground/aerialopticalfibrelead-incableortheindooropticalfibrelead-incable—orbothcablesmayenterthesame(either)cableentryport.
AnearthingconductorisnotrequiredforthisPCD.
ThePCDissuppliedandinstalledbyTelstraaspartoftheFTTPserviceandisnormallyinstalledatthetimeofserviceactivation.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE68/787.
5.
6.
5.
3NBNCoPCDTheNBNCoPCDpicturedinFigure31onpage35(foranindoorNTD)iscolouredlightgreyandhasasinglecover.
ItdoesnothaveacoverskirttohidethecablesenteringthebottomofthePCD,soitisassumedthatundergroundlead-incableenteringthePCDwillbeunprotectedtoensurecompliancewith7.
5.
6.
1(page63).
ItisalsoassumedthatthetiecableenteringthePCDwillbeunprotectedbecausethePCDhasnofacilityforsecuringflexibleconduittothePCD(unlessitenterstheleft-handcableentryport,inwhichcasetheunderground/aeriallead-incablemustenteroneoftheothercableentryports).
CablescannotpassbehindtheNBNCoPCD,socablesrunningdownthesurfaceofthewallfromabovethePCDwilleitherenterthecableentryportatthetopofthePCDorrunbesidethePCDandloopupintoabottomcableentryport.
Atthetimeofwriting,NBNCo'spracticesforinstallationandconnectionofthePCDwereunclear.
TheinstallationofaCUEasdescribedin6.
2onpage36wouldresolvetheuncertaintyandisrecommendedfornewhomes.
7.
5.
7PCDfasteningsImpactfastenersshouldnotbeusedtoaffixthePCDtothewallbecausethesemaybetoodifficulttoremovelater.
ThePCDneedstobeeasilyremovabletoallowfutureremovalandreplacementofthePCDforrepairorupgrade.
Note:Thisisforgeneralinformationonly—theTelstraADSLNTDistheonlyPCDthatmaybeinstalledbyanyoneotherthanthecarrier.
7.
6Drainagepit7.
6.
1DescriptionAdrainagepitisusuallyonlyinstalledincommercialpremisesormulti-storeyapartmentbuildingswhereexternalPCDsarenotused.
Itismainlyusedwhenthelandsfallstothebuildingfromthepropertyentrypointbutcanalsobeusedtoprovideacable/conduitaccesspointimmediatelybeforetheconduitentersthebuilding.
Forsingledwellings,adrainagepitmayberequiredifthePCDcannotbeinstalledontheexternalwallandthelead-inconduitcannotterminateattheexternalwall(e.
g.
duetoextensiveglazing).
Insuchcases,themainpurposeofthepitistoprovideanexternalaccesspointforsealingtheconduitagainsttheentryofwaterortermitesimmediatelybeforetheconduitentersthebuilding.
Note:Whileitispossibletosealtheconduitatthepitinthestreet,ifthelead-inconduitisdamagedinthegroundbetweenthepitandthebuilding,therewillbeariskofwaterandtermiteentryatthepointofdamage.
Theriskisminimisedifthepitislocatedadjacenttothebuilding.
7.
6.
2Plugging/SealingofconduitsFor23mmIDconduitthatrunstoabuildingorthatrunsdownhillintoacustomer'sproperty,arubberplug(seeFigure56)isnormallyusedbythecarriertoplugtheconduitinthepittominimisewaterandinsectentrytothepremisesviatheconduit.
Figure56Typicalrubberplugfor23mmIDconduitCablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE69/78Whenthelead-incableisinstalledintheconduit,theplugmustbemodified(bythecarrier)asshowninFigure57.
IftheundergroundconduitterminatesinsideabuildingasshowninFigure58,thecavityoftheplugmustbefilledwithbutylrubberputtyorgreysealanttapesoastomakethesealwatertightandtopreventtheentryofinsects(especiallytermites)tothebuildingviatheconduit.
Figure57ModificationoftherubberpluginthepitforinstalledcableNotes:1.
Whencableisinstalledintheconduit,therubberplugismodifiedandwrappedaroundthecableasshownaboveleftandpushedintotheendoftheconduitasshownaboveright.
IftheundergroundconduitterminatesinsideabuildingasshowninFigure58,thecavityoftheplugmustbefilledwithbutylrubberputtyorgreysealanttapesoastomakethesealwatertightandtopreventtheentryofinsects(especiallytermites)tothebuildingviatheconduit.
2.
Thisisprovidedforinformationonly.
Anyplugsinthepitsmustbefittedbytherelevantcarrier.
Figure58UseofadrainagepitNotes:1.
Conduitsmustentertheendofthepit(seeFigure5onpage9).
2.
The"network"endofthelead-inandbuildingentryconduitsmustbepluggedorsealedineachpitusingarubberplug(seeFigure56)whichmustbemodified(bythecarrier)inaccordancewithFigure57whenthelead-incableisinstalled.
3.
Thedrainagepitmustbedrained(orventedusingaventpipeasshown),andwouldnormallysitbelowthelevelofthefloorofthebuilding.
Anydrainageorventpipemustbeatleastthesamesizeasthelead-inconduit.
4.
Adrainagepitisnotnormallyrequiredwherethelead-inconduitterminatesattheexternalwallofthebuilding(e.
g.
toconnectaPCD).
Insuchcases,anywaterthattricklesdownthelead-inconduitshouldescapeharmlesslyoutsidethebuildingandtheendoftheconduitisalsovisibleforinspectionfortermiteactivity.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE70/788SEPARATIONFROMOTHERSERVICES8.
1GeneralAllcablesshouldbeinstalledthoughtfullyandwithcaretoavoiddamageduringconstructionofthebuildingandtoensuremaximumperformanceofthecompletedinstallation.
CompliancewithAustralianStandardAS/CAS009,Installationrequirementsforcustomercabling(Wiringrules),istheminimumrequirementforcustomercabling.
8.
2Electricityandgas8.
2.
1Undergroundconduits/pipesThetelecommunicationslead-incablingmustbeseparatedfromotherundergroundservicesinaccordancewith4.
5.
8to4.
5.
10(pages23to29).
8.
2.
2Conduits/Pipes/Cablesin/onbuildings8.
2.
2.
1SeparationfromLowVoltage(LV)powercablesLVpowercablesarethosecablesusedtosupply230VACsingle-phasepoweror400VACthree-phasepowertoappliancesandpoweroutletswithinabuilding.
SeparationfromLVpowercablesisnecessaryforsafetypurposes.
Themainconcernissimultaneousdamagetothecableinsulationofbothwiringsystemsdueto,forexample:penetrationbyforeignobjectssuchasnailsandscrews;orcrushingorabrasion(e.
g.
buildingmovement,trampling,impact,pullingonecableoveranother).
TelecommunicationscablesonorinthebuildingmustbepermanentlyseparatedfromLVpowercablesforsafetypurposesby:aminimumdistanceof50mm;orabarrierofdurableinsulatingmaterialormetal(e.
g.
enclosureofthecableinconduit);oratimberormetalstud,nogging,joist,beam,rafterorrooftrussofanythickness.
Nospatialseparationisrequiredbetweenelectricalandtelecommunicationsconduits(forsafetypurposes)onorwithinabuilding.
AtelecommunicationscableandanLVpowercablemustnotpassthroughthesameboreholewithin50mmofanysecuringfaceofbuildingframeworkwhetherornotthereisabarrierbetweenthecables.
Inothercases,telecommunicationscablemaypassthroughthesamehole(e.
g.
throughwall/ceilingliningsorfloorboards)asLVpowercableifeitherthetelecommunicationscableortheLVcableisinstalledininsulatingormetalconduitorsuitablydesignedtrunkingorductingthatprovidesadurablebarrierbetweenthetelecommunicationscableandthepowercable.
Note:Drills,nailsorscrewsdrivenintothebuildingframeworkcouldpenetratecablespassingthroughboreholesevenifthecablesareinstalledinconduit.
However,suchdamageisunlikelyforcablespassingthroughwall/ceilinglinings(e.
g.
plasterboard)orfloorboards.
Aminimumaccessclearanceof150mmisrequiredbetweenanytelecommunicationsenclosure(suchasaPCD)andanyelectricityenclosuresuchasanelectricitymeterpanelorswitchboard.
Note:Thisisanaccessclearance,notasafetyclearance.
8.
2.
2.
2SeparationfromservicesotherthanpowerTelecommunicationscablesonorinthebuildingmustbeseparatedfromothernon-telecommunicationsservices(suchasplumbing)soasnottoimpedeaccessto,orrepairof,theotherservice.
Telecommunicationscablesmustnotbefastenedtoplumbingpipesortheconduitsofotherservices.
Note:Aminimumclearanceof50mmisrecommendedbyAustralianStandardAS/CAS009,Installationrequirementsforcustomercabling(Wiringrules),wherethetelecommunicationscablingrunsalongsidetheotherservicecables,conduitsorpipes.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE71/78Wheretheotherserviceisdeemedtobehazardous(e.
g.
agaspipeorheatingoilpipe),thetelecommunicationscablemustbeseparatedfromtheotherservicebyaminimumdistanceof150mmwhetherornotthecableisinstalledinconduit.
Notes:1.
Thisseparationrequirementreducestheriskofdamagetothetelecommunicationscablingortheotherserviceduringinstallationorrepairactivities,whichmaycausepersonalinjuryordamagetoproperty.
2.
Seealso6.
3.
3.
1(page40)fortherequirementsforseparationofPCDsfromgasmetersandgascylinders.
Noseparationisrequiredbetweencablesofdifferentcommunicationscablingsystems,e.
g.
telephone,data,TV(coaxial),audio(A/V,HDMIorspeakerwires).
Noseparationisrequiredbetweentelecommunicationscablesandearthingconductors(whethertheseareassociatedwithtelecommunicationsorelectricity)exceptforlightningdown-conductors(see8.
3.
2).
Figure59SummaryofsafetyseparationrequirementsfromLVpowercablesandnon-electricalhazardousservicesforconcealedcablingandoutdoorsurfacecabling8.
3Otherbuildingfixtures8.
3.
1GeneralTelecommunicationsconduitsemergingfromundergroundshouldnotbeinstalledinawaythatmayconcealtermiteactivity,e.
g.
inthecornersofexternalwallsoragainstotherconduitsorpipes.
Referto7.
2.
3(page45).
8.
3.
2Lightningdown-conductorsLightningdown-conductorsareearthingconductorsinstalledbetweenalightningrodorstriplocatedontheroofofthebuildingandanearthingelectrodeorearthingmatatthebaseofthebuilding.
Thesearerarelyinstalledonsingledwellingsbutmaybeinstalledonmulti-storeyapartmentbuildings.
Lightningdown-conductorsaredesignedtocarrythousandsofvoltsandamperesoflightningvoltageandcurrentintheeventofalightningstrike.
Itisimportanttokeepmetalliccableswellawayfromsuchconductorstoavoid"side-flashing"whichmaycausefireorinjury.
Telecommunicationsconduits,cablesandconnectiondevicesmustbeseparatedfromlightningdown-conductorsbyaminimumdistanceof9munlessthisisimpractical,inwhichcasethecablingmustbeseparatedfromanylightningdown-conductorinaccordancewiththerequirementsofAustralianStandardAS/NZS1768,Lightningprotection.
Notes:1.
Aseparationdistancelessthan9mwillusuallyrequireassessmentbyasuitablyqualifiedelectricalengineer.
2.
AnearthingconductorforadomesticTVantennaorsatellitedishisnotalightningdown-conductor.
CablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE72/789EARTHING9.
1WhenisearthingrequiredWheretheoutdoorPCDisanFTTPNTDoranADSLNTD,anearthingconductorwillberequiredatthePCDlocation.
InthecaseofanFTTPNTD,theearthisrequiredforelectricalsafetypurposeswhereas,fortheADSLNTD,theearthisforlightningsurgesuppressionpurposes.
9.
2EquipotentialbondingWhereearthingisrequired,theearthshouldbederivedfromtheelectricalearthingsystem.
Thisisanimportantsafetyrequirementtoensurethatthereisnoearthdifferentialatorinthebuilding.
Earthingshouldnotbeachievedbydrivingaseparateearthelectrodeunlessthatelectrodeisalsobonded(connected)totheelectricalearthelectrode.
Telecommunicationsearthingisobtainedfromtheelectricalearthingsystembymeansof"equipotentialbonding",i.
e.
by"bonding"(connecting)thetwoearthingsystemstogethertoensurethattheyareat"equalpotential".
Theequipotentialbondingmustbedoneattheelectricalswitchboard—eitherinsidetheswitchboarditselfbyconnectiontothemainearthingbarormainearthingconductor,oroutsidetheswitchboardbyconnectiontothemainearthingconductorortotheelectricalearthelectrode.
RefertoFigure4ofAustralianStandardAS/CAS009:2013,Installationrequirementsforcustomercabling(Wiringrules).
ThethreeallowablemethodsofequipotentialbondingareillustratedinFigure60.
Itisimportantthatthereisademarcationpointbetweentheelectricalearthingsystemandthetelecommunicationsearthingsystemsothat:thetelecommunicationsearthcanbeisolatedfromtheelectricalearthatasingle,readilyaccessiblepointbyeitheratelecommunicationsworkeroranelectricalworker;andearthingoftelecommunicationsequipmentcanbelegallyperformedbyatelecommunicationsworkerwhoisnotalsoalicensedelectricalworker.
ThisdemarcationpointwillbeeitheraCommunicationsEarthTerminal(CET)locatedoutsidetheelectricalswitchboardoradistinct,removableconnectiondeviceontheelectricalearthelectrode.
Anearthingconductorfortelecommunicationsequipmentshouldnotbeconnected(hardwired)directlytotheelectricalearthingsystemevenifthisisnotprecludedbytheelectricalwiringrules(AS/NZS3000).
Furthermore,whiletelecommunicationsequipmentmayusetheearthfromapoweroutletviathepowerplugandpowercordaspartoftheequipmentdesign,atelecommunicationsearthshouldneverbehardwiredfromtheearthingconductorattherearofapoweroutlet.
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017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE73/78Figure60Equipotentialbondingmethods(a)Equipotentialbondingtotheearthingbarorterminaloftheelectricalswitchboard(Method1)(b)Equipotentialbondingtothemainearthingconductoroutsidetheelectricalswitchboard(Method2)(c)Equipotentialbondingtotheelectricalearthelectrode(Method3)Notes:1.
Onlyalicensedelectricalworkermayaccesstheinternalsofanelectricalswitchboard.
2.
Theequipotentialbondingconductormustbelabelled"TelecommunicationsBondingConductor"or"CommunicationsBondingConductor"attheswitchboardendandalsoattheotherendiftheotherendisnotwithinsightoftheswitchboard.
3.
Whilea2.
5mmearthingconductorisacceptablebetweentheCETandanoutdoorFTTPNTD,a6mmconductorisrecommendedbetweentheCETandthePCDinallcasestoensurecompatibilitywithallPCDs.
4.
TheCETshouldbelocatedinthetelecommunicationscompartmentoftheCUEinaccordancewithFigure33(page37)or,ifaCUEisnotprovided,theCETmaybelocatedinanyreadilyaccessiblelocationexternaltotheelectricalswitchboard—preferablyimmediatelybelowtheswitchboardperFigureF3ofAS/NZS3000:2007.
5.
Thetotallengthofbonding/earthingconductorbetweentheearthingbar/terminalintheelectricalswitchboardandthePCDshouldpreferablybelessthan1.
5mbut,inanycase,shouldnotexceedalengthof10m.
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017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE74/789.
3Installationofearthingconductors9.
3.
1GeneralACommunicationsEarthSystem(CES)conductormaybeprovidedattheCCPforpossibleearthingofcablescreens/shields.
ACETisrequiredifequipotentialbondingmethods1or2areused(seeFigure60).
TheCETshouldbelocatedwithinthetelecommunicationscompartmentoftheCUE(whereused)orundertheelectricalswitchboard(seeNote4toFigure60).
Wherebondingmethod3isused,theequipotentialbondingconductormaybeconnectedtoanearthingterminallocatedattheCCP.
Thereisnoreasonwhytwoequipotentialbondingconductorscannotbeinstalledforseparatepurposes,e.
g.
bondingmethod3forearthingoftheoutdoorPCDandbondingmethod1or2forearthing,viaaCETlocatedbelowtheelectricalswitchboard,toaseparateearthingterminallocatedattheCCP—aslongastheindoorearthingterminalandthePCDeartharenotinterconnectedtocreatean"earthloop"(seethenextparagraph).
However,itisrecommendedthatasingleequipotentialbondingconnectionbemadetotheelectricalearthingsystemtoavoidconfusion.
Allearthingconductorsshouldbecabledina"tree"or"star"wiringconfigurationfromtheCETorothercommonearthingpoint.
Careshouldbetakentoavoidintentionallyoraccidentallyearthingthesamemetalliccomponentattwoseparatepoints(suchasbothendsofascreenedcable),whichmaycreate"earthloop"currentsthatcouldgeneratenoiseinthecablingsystem.
9.
3.
2EarthingconductorsizeandcolourTheequipotentialbondingconductormustbeatleast6mmincross-sectionalarea(7/1.
04mm)withgreen/yellowinsulation.
Anyearthingconductorrequiredforend-userlightningsurgesuppressionpurposes(suchastoanADSLNTD)mustalsobe6mmwithgreen/yellowinsulation.
Inallothercases,aminimum2.
5mm(7/0.
67mm)green/yellowearthingconductorisrequired,whichmustbecabledfromtheCETorotherearthingterminal.
Earthingandbondingconductorsdonotneedtobeinstalledinconduitwithinbuildingcavities.
TherecommendedearthingconductorarrangementforagenericcablingsystemisshowninFigure61.
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017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE75/78Figure61RecommendearthingconductorcablingforgenerichomecablingNotes:1.
Onlyalicensedelectricalworkermayaccesstheinternalsofanelectricalswitchboard.
2.
TheequipotentialbondingconductorbetweentheearthingbarorterminaloftheelectricalswitchboardandtheCETmustbeatleast6mm(7/1.
04mm)copperconductorwithgreen/yellowinsulationandlabelled"TelecommunicationsBondingConductor"or"CommunicationsBondingConductor"inaccordancewiththerequirementsofClause20.
11ofAS/CAS009:2013andClause5.
6.
2.
7ofAS/NZS3000:2007.
3.
TheCETshouldbelocatedinthetelecommunicationscompartmentoftheCUEinaccordancewithFigure33(page37)or,ifaCUEisnotprovided,theCETshouldbelocatedimmediatelybelowtheelectricalswitchboardinaccordancewithFigureF3ofAS/NZS3000:2007.
4.
TheearthingconductorbetweentheCETandthePCDshouldbeatleast6mm(7/1.
04mm)copperconductorwithgreen/yellowinsulation.
Thereisnoneedtolabelthisconductor.
Thetotallengthofbonding/earthingconductorbetweentheearthingbar/terminalintheelectricalswitchboardandthePCDshouldpreferablybelessthan1.
5mbut,inanycase,shouldnotexceedalengthof10m(seeFigure60).
5.
TheearthingconductorbetweentheCETandtheearthingterminalattheCCPmustbeatleast2.
5mm(7/0.
67mm)copperconductorwithgreen/yellowinsulation.
Thereisnoneedtolabelthisconductor.
Thelengthofthisconductormustnotexceed135mtoensurethatitdoesnotexceedthemaximumspecifiedCESresistanceof1ohm.
6.
AnearthingterminalmaybeprovidedattheCCPforpossibleearthingofcablescreens/shields(referto9.
3.
1).
Ifend-userscanaccesstheearthingterminal,itisarequirementofAS/CAS009fortheterminaltohaveaninsulatedcovertopreventend-useraccesstotheterminations.
Alltelecommunicationsearthingconnections(e.
g.
tocablescreens/shields)shouldbemadeattheCCP.
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017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE76/7810ABBREVIATIONSForafulllistofabbreviationsanddefinitions,refertoDocumentNo.
017153a00.
AcronymFullexpressionACAlternatingCurrentACIFAustralianCommunicationsIndustryForum(nowCA)ACMAAustralianCommunicationsandMediaAuthority(formerlyAUSTELandACA)ADSLAsymmetricDigitalSubscriberLineAS/CAAustralianStandard/CommunicationsAllianceAS/NZSAustralianStandard/NewZealandStandardA/VAudio-VisualCCPCentralConnectionPoint(orCross-ConnectionPoint)CESCommunicationsEarthSystemCETCommunicationsEarthTerminalCUECombinedUtilitiesEnclosureDDeepDCDirectCurrentFGLFinishedGroundLevelFTTPFibreToThePremisesHDMIHigh-DefinitionMultimediaInterfaceHFCHybridFibre-Coax("Cable")HVHighVoltageIDInsideDiameterkgfkilogram-forceLLongLVLowVoltagemmetre(s)NBNNationalBroadbandNetworkCablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE77/78AcronymFullexpressionNTDNetworkTerminationDeviceODOutsideDiameterPCDPremisesConnectionDevicePPPowerPointPSUPowerSupplyUnitRFRadioFrequencySWERSingleWireEarthReturnTOTelecommunicationsOutletTVTelevisionUPVCUnplasticisedPolyvinylChlorideVVolt(s)WWide11ASSOCIATEDDOCUMENTSDocumentnumberTitle017153a00Cablingofpremisesfortelecommunications—Acompleteguidetohomecabling017153a01Cablingofpremisesfortelecommunications—EssentialinformationforhomecablingCablingofhomesfortelecommunicationsLead-incablingandbuildingentryfacilitiesforhomesTELSTRACORPORATIONLIMITED(ABN33051775556)|ISSUED26/08/2013ISSUE1–FINAL|TELSTRAUNRESTRICTED|DOCUMENTNO.
017153A02|LEAD-INCABLINGANDBUILDINGENTRYFACILITIESFORHOMESPAGE78/7812DOCUMENTCONTROLSHEETIssuenumberIssuedateDetailsonthechange126/08/2013Approvedversionforpublication