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 VoiceoftheEuropeanwire&cableindustryatEULevel   Provideclear,consistent,technicalinforma4on   Engagewithallinterestedpar4es

 Foundedin1991:   SME’s & mul>na>onals represen4ng approx. 85% of

Europe’swireandcableindustry   €20billionwire& cable consump4on2009 (Interna4onal

CableFedera4on,January2011)   2,2 million tonnes insulated metallic cable produc4on at

conductor2009;equallingsome   38millionkmofcablesproducedinEurope

 RegisteredwithEUIns4tu4ons:453103789‐92  MemberofeHighway2050Consor4um

IntroducingEuropacable

AssociatedMember:

HV&EHVMembers:

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EuropacableConceptofPar>alUndergrounding

Essen>als   MostofEurope‘snewgridswillbeoverheadlines   Insensitveareas,par>alundergroundingmaycomplementoverheadlines

tofacilitategridextensions   Sec4onsupto20KMpossiblewithoutcompensa4on   Allowsforalterna4ve,possiblyshorterrou4ng   Limited,manageableenvironmentalandvisualimpact

  Core technology: EHV XLPE Underground Cables 

EHVXLPECables–Keyfacts

ExtraHighVoltagecrosslinkedpolyethylene(XLPE)Cables   Copperconductor(alterna4vealuminium)   Semiconductor   XLPEinsula4on   Semiconductor   Waterblocking   Metallicscreenandwaterbarrier(aluminiumlaminatedfoil)   Polyethyleneoutersheath

  Notably at Extra High Voltage level, 100% precision is criCcal to ensure full reliability of technology 

Itworks!

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JointPaperEuropacable&ENTSO‐E,2011

JointefforttoconfirmcurrentstatusofEHVXLPEcabletechnology   Transmission System Operators (TSOs) & Leading European Manufacturers    Co‐ordinated by European Commission DG Energy 

ApprovingEHVXLPEcabletechnology   “Extra high voltage cross linked polyethylene cable XLPE are mature & 

reliable technology”   “ParGal undergrounding is a means to upgrade & expand Europe’s EHV 

electricity grid”   “SoluGons are to be considered on a case‐by‐case basis”

  Basis for facts presented here – available at www.europacable.com 

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EHVXLPECables–Keyfacts

LayingofEHVXLPECables   Usuallydirectlyburiedintotheground,surroundedbysandblending   Canalsobeinstalledintunnels,ductsorpipes(beaerprotec4on

againstexternaldamageathighercosts)   Max30%ofexcavatedsoilhastobetransportedaway–restisrefilled

  Considerable work required during installaCon 

Itworks!

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PicturecourtesyofTenneT

EHVXLPECables–KeyfactsLayingofEHVXLPECables

EHVXLPECables–Keyfacts

Cablelength   Forlandapplica4on,EHVXLPEcablesaredeliveredinlengthof

700–1000meters   Logis4calconstraints:Weight&sizeofcabledrumhavetobe

consideredfortransport

JointBays   Cablesarelinkedevery700‐1000mbysocalledjointbays

  Directlyburiedintheground,surroundedonlybysandblending;or   Placedinundergroundstructure,typically10mby2.5mby2.1m

depth

  JoiningEHVcablesisdelicatetaskwhichneedstobeexecutedbytrainedexpertswithutmostcare

  No or only liLle visibility of these installaCons above ground 

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PicturecourtesyofTenneT

EHVXLPECables–Keyfacts

Reliability   Cablesystemsundergothoroughtestproceduresaccordingto

IECStandardswiththermalandelectricalstresslevelsexceedingopera4onallevelsbeforebeingplacedinopera4on

  Onceinground,cablesarewellprotectedagainstexternalimpacts

Repairs   Singlefaultsoncablemaytakelongertorepairthanon

overheadline‐repair4mesonlargersystemsarecomparable   CIGREBrochure379:

  Over1/3ofcablefaultswererepairedandsystemre‐energisedwithinlessthan1week

  Morethan75%ofcablefaultswithin1months

  Keepingsparepartsiscri4cal

  XLPE underground cables are reliable technology   N‐1 Criterion ensures security of supply 

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EHVXLPECables–Keyfacts

Environmentalimpact   Installa4onworksrepresentconsiderableimpactontheenvironment   Vegeta4onwillbere‐installedaoer1–2seasons   Limitedimpactduringopera4on

  Nodryingofsoil   Nolimita4ontocul4va4onapartfromdeeplyrootedtrees   Nolimita4ononagriculture–needtointroducecompensa4onschemes

  Norisktohumanhealth:ExposuretoEMFstayswellwithinlimitofEURecommenda4on199/519/EC

  Cable secCon will be visible if cuNng through forest – but will blend into open landscape 

EHVXLPECables–Keyfacts

Costsofpar>alundergrounding   Investmentcostfactorfor400kVXLPEcablesis5–10dependenton

projectdetailsandsoilcondi4ons   Costfactorappliesonlytoundergroundedsec4on   Costfactorforen4relineprojectwillbe1.2–2

  Life cycle costs of Project are to be considered 

EHVXLPECables–StateoftheArt

ACCablesinuse   Morethan25yearscommercialexperienceatHVlevels(110‐150kV)   Morethan20yearscommercialexperienceatEHVlevel(220–275kV)   Morethan15yearsexperienceatEHVlevel(380–400kV)

ACCablesinstalla>ongloballysince2000   HighVoltage:>200.000km   ExtraHighVoltage:>10,000km

EHVXLPEAvailability   40%capacityincreasefrom2008to2011   AnnualcapacityforEuropealoneisabout3.500KM

  Global technology leadership of European manufacturers Itworks!

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EHVXLPECables–StateoftheArtConclusions   EHVXLPEcabletechnologyisfullyavailable   At380.000Volt,eachprojectneedstobecarefullyevaluatedonacase

bycasebasis   Par4alundergroundingcomplemen4ngoverheadlinesinsensi4ve

areasisanewconceptwhichrequiresnewthinking&createsnewpossibili4esforareliable,acceptable&affordablegridextensionsinEurope

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