Special Offshore Cables

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Introduction

Nexans Norway AS designsand manufactures a widerange of special purposecables and umbilicalsthrough its product divi-sions, either as individualproducts or composite struc-tures taking advantage ofall highly specialised tech-nologies available withinthe company in order tooffer the customers optimumsolutions.

The special telecom cablesare directed to serve applica-tion areas in need for highlydedicated cable or umbilicaldesigns, serving multiple functions like:

• communication• signal transmission for

control and data• electrical power transmis

sion to remote equipment• air or fluid power supply

through plastic flow lines

The main products and areasof applications are:

• fibre optic submarine cables

• fibre elements into composite power and fibre optic cables to enable communication of voice, data, video, broadcast overlong distances (>300 km)

• electrical umbilical cables with signal and power elements for connecting oil platforms to subsea templates over long distances (>100 km) and down to water depth > 1.600 m.

• dynamic umbilicals for operation of Remotely Operated Vehicles (ROV) containing signal elements (pairs/quads, RG coax or fibre optic elements) together with electrical

power elements feeding remote equipment with more than 1 Mwatt)

• Air-gun umbilicals and lead-ins for towed systems, and bottom laid cables for 4-D seismic acquisition

• submarine cables for permanent underwater installations for monitoring and control purposes (oceanographic, telemetry of ship activity, defence systems etc.)

• topside cables (fibre optic or coax) for interplatform wiring of communications systems having fire resistant or mud resistant characte-ristics

• Optical Ground Wire (OPGW) cables, providing normal electrical functions and large transmission capacity for data and communication requirements

In order to respond fully tocustomer needs, many of thecable or umbilical productsare supplied with acces-sories, comprising termina-tions, cable joints for repairor maintenance purposes,weak links, hang-off for oilplatform terminations and flex-ible riser systems for use fromsea bed to floating structures.

In addition special purposetelecom elements can beincorporated into largecombination umbilicalstogether with steel tubes orhigh voltage conductors.

We also offer design engi-neering services to fullyundertake turnkey responsi-bility for cable and umbilicalsystems including installation,which can be offered in addi-tion to our contracting activity.

Oil & Gas (O&G) – Special Fibre Optic Telecom Cables

Veslefrikk deep catenary cable

Fibre optic submarine cable

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Some of the specific capabili-ties are represented by theability to manufacture longlengths of unspliced cables or umbilicals. To make up"infinite" cable lengths tech-nology has been developedto join long unsplicedsegments to very long finallengths (100 - 300 km).

Further, with a highly trainedengineering staff, cables orumbilicals can be designedand manufactured to meetcustomer specifications.

This is reflected in a supplyrecord of more than 100different umbilical designs forROVs, many supplied forhighly specific projects, with

its dedicated tools and instru-mentation package requiringa varied combination ofumbilical elements. Further, as operational range of ROVsare extended, new require-ments to armour and outerdiameter call for constantimprovements and newdesigns.

The same applies in almostevery area, because newspecial demands requiresnew special solutions.

Through development of newtechnologies qualified throughextensive test programsNexans Norway AS aims atbeing in the forefront capableof serving the customers with

new solutions to eitherimprove existing applicationsor to enable new areas to beserved reliably by cost efficient designs.

We would like to workclosely with our customers to take full advantage ofcommon skills, as we believespecial demands requiringspecial designs and solutionsare best served with bothsides fully understandingneeds and technical alterna-tives available.

Our capabilities are shapedby your special needs.

Oil & Gas (O&G) – Special Fibre Optic Telecom Cables

Nexans Norway Rognan plant

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phase power supply (100-150 HP), instrumentationconductors and a laserwelded steel tube (FIMT), for monitoring and videotransmission. Typical depthratings are 2000 to 4000 m.

DW Umbilical is an umbilical developed fordeepwater applications ratedto 6000 m. This is a lightweight aramid armouredcable with an outer diameterof 39 mm. The cable includeselements for three-phasepower supply (typical 100HP), two instrumentationconductors and a laserwelded steel tube (FIMT), forsignalling. Results of proto-type testing show that thecable is well suited fordynamic deep-water applica-tions. The mechanical termi-nation strength is higher than350 kN.

Improved technologyNexans Norway’s continuousefforts in product develop-ment and improvements with

respect to materials andprocessing, have resulted inextended operational condi-tions and increased lifetime of ROV cables. Loose opticalfibres in a laser welded metaltube (FIMT) have proven bothin laboratory testing and fielduse to provide reliable com-munication with the vehicle.The metal tube ensures arobust protection of theoptical fibres, and thestranded configuration intro-duces sufficient strain relief forthe optical fibres so as toavoid fatigue failures.The umbilical cable designsof Nexans Norway featurecable core compactness, efficient element lay-up andemphasises overall dimen-sion. Steel wire armouredumbilical cables are avail-able for water depths downto 5000 m. For deeperwaters aramid yarn armouredsolutions are applicable.

ROV Cables

Nexans Norway AS suppliesumbilicals to the majority ofthe standard ROVs such asSolo, Scorpio, Scorpion, Sprint,Voyager, Seaowl, Seahawk,Seatwin, Trojan, Examiner,Triton, Triton Xl, Demon, MRV,Recon, Boxer, Hercules, SCV,Innovator, Magnum,Millennium and others.

We also supply umbilicals forspecial underwater vehicleslike the Capjet, Flexjet,Gater, Marlin, Mako, PL2,ST200 and other trenchingmachines and plows.

Tethersare neutral buoyant cablesconnecting the ROV to theTMS. These cables typicallyinclude a three-phase powersupply (100 – 150 HP),instrumentation conductors,and a laser welded steel tubecontaining optical fiberswhich are encased in a jellygiving internal protection and

support, also referred to asFIMT (Fibre In Metal Tube),for monitoring and videotransmission. The tether isarmoured with aramid yarnsand has a TPR (ThermoplasticRubber) outer sheath. Typicalouter diameter is 30-45 mm.

Steel Armoured Umbilicalsare umbilicals designed forvehicles applied for taskssuch as trenching, mainte-nance, drill support etc. Typically the cable has a twoor three layer torque balancedsteel wire armouring, andincludes elements for three-

Oil & Gas (O&G)

Steel armoured ROV cable

Tether cable Deep water umbilical cable

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Platform/Umbilical Cables

Electric and electro-hydrauliccontrol umbilicalFor cost efficiency andoptimum utilisation of hydro-carbon reservoirs, presenttechniques for oil and gasproduction require under-water installations, producingto existing platforms. Subseaumbilicals provide the electricand/or hydraulic power andcontrols necessary to operatesubsea installations remotelyfrom offshore platforms oronshore facilities.

The umbilicals are used tomonitor position and functionsof such equipment as well-head valves to signal theoperations for opening orclosing, and to providepower for operation.

The applicable subsea controland operational systemsdetermine the characteristicsof the umbilical, such as size,number of elements and therequired standards.

Power cores, signal and fibreoptic elements, steel tubesand/or thermoplastichoses/composite materials,are elements which may beused in various combinationsdetermined by the servicerequirements. The umbilicalsmay be delivered with orwithout armouring accordingto the customer's needs.

The following umbilicalscomprise electrical and/oroptical elements:

• Conoco - Heidrun• Statoil - Norne • Shell - Mars

MensaNexans Norway supplied theelectrical umbilical to Shell’sMensa project in the Gulf ofMexico. At a depth of 1647m and a distance of 102 kmbetween the platform and thethree gas wells, this umbilicalrepresented a milestone wheninstalled in 1997. The umbil-ical contains one signal quadand two power triads.

Statfjord SatelliteSeparate electrical umbilicalshave been installed in theStatfjord Satellite field. Theumbilical is made up of 7unshielded quads with a poly-ethylene inner sheath togetherwith cross-armoured steelwires for mechanical protec-tion and torque balance.

The outer corrosion protectionconsists of PP yarn filled withbitumen compound. Theumbilical core is filled withpetroleum jelly to preventlongitudinal water migration.

Interplatform - compositecablesFixed production platformshave usually been self-contained with respect topower generating facilities.Cables can be installedbetween old and new instal-lations in an offshore fieldthus eliminating the need to

Oil & Gas (O&G)

Statfjord Satellite electrical umbilical

Mensa electrical umbilical

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install power-generating facilities on all installations.

Some factors making interplat-form, or shore to platform,power and signal cable solutions increasingly moreattractive are:

• Installation weight/size.• Power generating

equipment weight/size.• Manning levels.• CO2 emission levels.• Remote control of the

installation.

The high priority given tocontinuous operation favoursa power cable networkbetween installations. Such a network ensures reliabilityof power from other sourcesin case of shutdown or break-down at one platform.

The remote control ofunmanned installations isanother application forsubmarine composite cables.Most subsea power cablesinstalled offshore have a fibreoptic element containing 8 – 48 optical fibres forsignal transmission. The advantages of combiningsignal and power capabilitiesin one cable are:

• communication will not be influenced by weather or surface traffic as in radio

• greater bandwidth compared to radio and satellite

• stable and improved signalquality

Interplatform cables havebeen supplied by NexansNorway to:

• Phillips Ekofisk 2/4 A• Saudi Aramco - Saudi

Arabia• Elf Aquitaine -

North East Frigg• Elf Aquitaine - Frigg-Frøy• Statoil - Gullfaks A-B• Statoil - Veslefrikk A-B• Statoil - Sleipner West• BP - Atlantis• BP - Thunder Horse• Scarab - Saffron• Saga petroleum - Benin• Shell Sarawak - Malaysia• Shell - Troll Phase 1• Shell - Nakika

Shore to platform cablesSupplying power to offshoreinstallations from energysources onshore makes forsmaller and lighter installa-tions. Lower manning require-ments, and lower CO2 emis-sion levels. With this solutionany number of installationscan be linked and providedwith power from an onshorepower grid. The powersupply cable system can beexpanded to form a networkbetween offshore fields,providing flexible and safe

power utilisation for the oilindustry.

The first offshore developmentwhere this concept is takeninto use is the Troll field offBergen. The 18 MW plat-form power requirements wassupplied by Nexans Norwaythrough a 67 km long, 52 kVXLPE-insulated combinedpower and signal cable.

The fibre optic element wasmanufactured at our factoryplant in Rognan in the northof Norway. The compositecable including the powercores was manufactured atour Halden factory in thesouth of Norway. C/S Skagerrak laid the cableand Capjet 500 performedthe protection.

Fire and mud resistant fibreoptic topside cables Nexans Norway has deliveredfibre optic topside cable toseveral offshore installations inthe North Sea region. Thetopside cable is halogen freeand flame retardant in accor-dance with IEC 331/ IEC332-III which includes testingat 1000° C. The cable has arugged design with a servingof steel armour for mechan-ical protection. Both singlemode and multimode fibrescan be supplied in numbersup to 48 per cable. For mudresistance a thin nylon outer

sheath and armour formechanical protection can beprovided on special request.Both single mode and multi-mode fibres can be suppliedin numbers up to 48 percable..

Oil & Gas (O&G)

Fire and mud resistant cable

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Nexans Norway supplies thefollowing products for seismicacquisition:

• Lead-in cables• Gun cables• Bottom laid cables for 4-D

seismic acquisition

Lead-in cablesare towing the steamerarrays. Lead-ins are exposedto abrasion, crush andimpact. Thus mechanicalstrength and protection isimportant. Our lead-ins areheavily armoured, with eithersteel wires or aramid yarns.The lead-in cores comprisecombinations of powerconductors, signal pairs andfibre optic elements. Onrequest, fairing for drag andstrumming reduction can alsobe provided. Typical cableouter diameter is 27-40 mm.

Air-gun umbilicalsare used for both towed andbottom laid systems. Typicallyan air-gun cable is composedof a central pneumatic hosewith stranded power andsignal elements. Steelstrengthened copper conduc-tors can be supplied, andfibre optic elements can beintegrated as well. A torquebalanced armouring,consisting of two layers ofsheathed high strength steelwires, provides the specifiedstrength. Typical cable outerdiameter is 67-81 mm.

Ocean Bottom Cablesare available for both perma-nent and retrievable systems.Permanent systems are, unlikeconventional retrievablesystems, installed and buriedunder the seabed. Sensorhouses with hydrophones andgeophones are integratedinto the system. The sensorarray is connected to the

Ocean Bottom Cablesare available for both perma-nent and retrievable systems.Permanent systems are, unlikeconventional retrievablesystems, installed and buriedunder the seabed. Sensorhouses with hydrophones andgeophones are integratedinto the system. The sensorarray is connected to thesurface through a riser cable.

Cables for seismic applications

Oil & Gas (O&G)

Towed seismic Bottom seismic

Air-gun umbilical

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Oil & Gas (O&G)

Cables for oceanographyNexans Norway hasspecialised in supplyingcable infrastructure for chal-lenging monitoring systems.The cables are deployedpermanently and areconnected to various types of underwater sensors suchas oceanographic (salinity,temperature, pollution,current), geophysical(hydrophones andgeophones) and specificsensors monitoring radiationfrom space or from nuclearbomb trials subsea.

Nexans is in the forefront inthe development and execu-tion of cable based systemsfor deep waters.

Nexans Norway has recentlydesigned and supplied acable for defence monitoringpurposes. In addition, a chal-lenging reference project formonitoring of neutrino parti-cles from space down to2000 m depth, was imple-mented in 2001, off thecoast of Sicily.

Composite defence monitoring cable

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CableSense – a versatilecable monitoring system

CableSense

Nexans Norway AS isproud to offer CableSenseCableSense is a new featureenabling our customers toperform continuous monitoringof for instance internal temper-ature of a cable. This is ofvital importance in caseswhere ROV operations aretaking place with many layersof umbilical on the winch.

Technical Description of theCableSense SystemThe CableSense system isbased on the Fibre BraggGrating technology. A FibreBragg grating (FBG) is a peri-odic variation of the index ofrefraction along the core ofan optical fibre. When lightwith a large spectral width iscoupled into the fibre, theFBG will reflect one spectralcomponent. The remainingcomponents will be trans-mitted. This principle is shownin Figure 1.

The central wavelength of thereflected component satisfiesthe Bragg relation: �refl = 2 n �, with n the indexof refraction and � the periodof the index of refraction vari-ation of the FBG. Due to thetemperature dependence ofthe parameters n and �, thewavelength of the reflectedcomponent will also change as function of temperature. This dependency is well knownwhat allows determining thetemperature from the reflectedFBG wavelength

The CableSense systemallows monitoring up to 10discrete sensing points usingonly one optical fibre. This isachieved by putting differentFBGs with different wave-lengths in a series configura-tion, see Figure 2.

The wavelength responses of the different FBGs arerecorded using a specialdesigned fibre optic measure-ment system, operating in theC-band (1530 nm – 1570nm). The working principle isshown in Figure 3. Thesystem consists of a broad-band light source thatcouples the light through a 2 by 2 coupler into theCableSense fibre. This samecoupler guides the reflectedlight, coming from thedifferent FBGs, into anOptical Spectrum Analyser(OSA) module where thedifferent peak wavelengthsare calculated. If more thanone CableSense fibre isused, an additional opticalswitch is needed to make theinterrogation of the differentfibres possible. The control ofthe measurement system aswell as the wavelength totemperature conversion isestablished using a graphicaluser interface that can be runfrom a laptop or desktop PC.

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CableSense

OutputFibre Bragg Grating

Wavelength

Inte

nsity

Output

Wavelength

Inte

nsity

Input

Wavelength

Inte

nsity

Bragg gratingn°2

Bragg gratingn°3

λg=2n.

dλ/dT ~ 12 pm/K

dλ/(dL/L) ~ 1,2 pm/µs

dλ/dP ~ -6 pm/MPa

intensity

transmitted spectrumλ

intensity

incident spectrumλ

Bragg gratingn°1

intensity

reflected spectrumλ

Multiplexing of several fibre Bragg grating sensors

1

1

1 2 11 12

2 12

2 12

R

ILight source

Opticalswitch

Spectrometer

Figure 1:Principle Fibre BraggGrating response.

Figure 2:Series configuration principle of CableSensecable.

Figure 3:Working principle of thefibre optic measurementsystem.

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Fibre optic submarine cablesare attractive due to the largecommunication capacity ofoptical fibres over extremelylong distances without needfor intermediate repeaters (i.e. underwater regeneratorsor amplifiers).

Nexans Norway AS starteddevelopment of fibre opticsubmarine cables already in1983, with first regular instal-lations in 1985.

Today, fibre optic repeaterlesssystems have almost unlimitedcapacity, and new cabledesign systems can be imple-mented quickly offering high-ways for services liketelephony, data, video orbroadcasting. With modern

synchronous digital hierarchy(SDH) equipment highly flex-ible network structures can beestablished linking e.g. oilplatforms to mainland offeringredundancy through self-healing network structures incase of cable break or equip-ment failure. By use of intelli-gent add-drop multiplexersring and branching, networkscan be achieved substitutingtraditional point-to-point solu-tions offering no redundancyexcept when duplicatingterminal equipment.

The URC-1 cable family hasbeen designed specifically forunrepeatered systems and ischaracterised by optimalmechanical properties, dimen-sions and weights, simplifying

installation and hencecontributing to cost effectivesystem solutions. The cabledesign is based on a laserwelded steel tube containingthe optical fibres which areembedded in jelly such thatall fibres are stress free,ensuring a long life time. For mechanical protection thecables can have a largevariety of outer steel armoourprotections, with heaviestarmour type with breakingstrength of more than 60tonnes.

The galvanised steel armouringwires have additional corro-sion protection through embed-ding the wires in bitumen witheither polypropylene yarnserving or polyethylene sheath.

The cable can have anynumber of fibres from 2 up to384, and various fibre typescan be used according tointernational standards ITUG652, G654 and G655.

The steel tube offers mechan-ical and hydrostatic protectionas well as a hermetic barrierfrom hydrogen for the opticalfibres. Furthermore, the tubetechnology makes it easier tokeep the hermeticity for jointsand terminations.

We have over 70 referenceswith over 11000 km of cableinstalled worldwide.

Underwater Optical Cables (UOFC)

Fibre Optic Submarine Cables (OUFC)

Unrepeatered Cable Family (URC-1)

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In the last few years riversand lakes (R&L) have increas-ingly been used as rights ofway (RoW). The main featureof R&L as a RoW is that itprovides a quick and inex-pensive means of cabledeployment for new opera-tors. R&L thus provide anopportunity to reduce signifi-cantly the time to market forhigh capacity fibre opticcables. To meet the demandfor RoW, Nexans has intro-duced a complete conceptfor installing cable in R&L.

For such R&L projects Nexanscan supply

• Cable-only• Cable system (with installa-

tion and accessories)

Nexans regards R&L as asymbiosis of submarine andterrestrial technology, and thetotal solution takes parts fromeach area. Each project isdifferent from the previous,and thus each one must beengineered individually.

Nexans previous experiencewith R&L and related tech-nology is extensive in twocountries:

Norway• 1500 km in rivers and

lakes• Submarine type cable• Cable laid on river and

lakebed

Switzerland• 250 km in lakes• Marinised terrestrial cable• Cable laid on lakebed

Nexans has available solu-tions for any R&L application,and is prepared to carry outsuch projects anywhere in theworld.

Underwater Optical Cables (UOFC)

Fibre Optic River and Lake Cables

Typical river and lake cable

Cable installation

Boat transport

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Pull-in/hang-off headTo fix or hang off a dynamicor static cable on the deck ofa platform, mechanical termi-nation units are developed.The pull-in/hang-off head isfastened to the armour layersby use of cones, pressedtogether in the armour block.The armour termination ismounted in a fixture to fit thehang-off arrangement at thetop of the tubes leading ontothe platform deck.

Subsea umbilical terminationand bend stiffenersThe cable is secured byfastening the armour wiresinto an armour block. In theback of the armour block, thehousing is bolted up togetherwith the bend stiffener.

The bend stiffener and housingcan be slid backwards ontothe umbilical to ease theassembly of the electricalchamber and penetrator. The electrical chamber will be pressure compensated and filled with petroleum jelly.

Weak linkTo protect the platformagainst severe damage if the cable is grabbed by e.g.a trawler, a special unit hasbeen developed, which ismechanically much weakerthan the cable itself. This isinstalled close to the platform,and the purpose is to ensure

that the weak link will breakbefore the cable it isconnected to, and thus notpull the platform itself..

Repair jointingFor electrical cables/cableelements a joint type is devel-oped both for splicing in the

factory (if necessary) and forfield repairs. This joint hasbeen used for umbilical appli-cations in the North Sea (EastFrigg, TOGI).

The joint consists of a rigidouter tube with an armourtermination in each end.Inside the tube the conductorsare spliced individually, andthe insulation is reinstated.The volume inside the splice

is filled with a materialcompatible with the fillingmaterial of the cable.

The cable armour is termi-nated between especiallyhardened threaded cones,which are secured with aportable hydraulic tool. The

armour termination is capableof sustaining more than 90%of the cable armour straighttensile strength.

A dedicated joint box forfibre optic cables is alsodeveloped. This joint box canhold up to 384 fibre splicesand has a tensile strengthadapted to a 400 kN cable.The joint is small compared toother joint boxes. A joint can

be performed with very littleequipment, the only specialtool being a hand held press.The Nexans fibre optic cableis also qualified for use withthe Universal Quick Joint. A bend restrictor can beapplied to ease the passingof the joint through the cable

machinery on the ship.Training for doing the jointstakes only a few days.

Buoyancy elementsTo absorb movements in a dynamic cable between afloating platform and theseabed, excess length is intro-duced by clamping buoyancyelements to generate e.g. a“lazy S” or a “Steep Wave”configuration. Tools both to

Accessories

Accessories

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design this configuration andthe buoyancy elements areavailable.

Beach JointAll cable types can be termi-nated by means of standardland splice closures likeRaychem and Tychoflex.Beach joints are also avail-able with up to 48 tapcouplers, enabling feedbackof a fraction of the opticalsignal. Such feedback isnormally required for safetyreasons in high optical powertransmission links.

Branching unitFibre optic cables can beprovided with branching unitsto allow one cable to splitinto two.

Remote Optical PumpAmplifierRAH (Remote AmplifierHousing), qualified up to 24fibres. The URC-1-Q1 cablejoints may be incorporatedinto the WDM R3 conceptand thereby named RemoteAmplifier Housing (RAH). The RAH consist of a repeaterhouse with armoured bendparts (armadillos) coupled tothe URC-1 cable on eitherside by the use of URC-1-Q1JB embedded into anchorpart for protection. Bend reliefis incorporated to adjustcable bending during installa-tion and laying. The internalunit containing the passiveoptical components and theexternal pressure resistanthousing comprising the pres-sure resistant sea case andbulkheads that are designed

to withstand sea depths of8000 m. The URC-1-Q1 jointboxes within the RAH willwithstand 3000 m. All systemRAHs are terminated in thefactory and are usuallyloaded in line with the cable.Spare RAHs are delivered tothe ship either in protectivepacking cases or fitted withline with the cable. SpareRAHs are delivered to theship either in protectivepacking cases or fitted witharmadillos, terminations andcable tails. In both cases theywill be fitted with impactrecorders. The length of thecomplete RAH is 4168 mmand diameter is approxi-mately 266 mm.

RAB (Remote Amplifier Box),qualified up to 48 fibres.The Remote Amplifier Box

(RAB) serves to amplify theoptical signal in submarinefibre cables. The technologyrelies on passive opticalcomponents, which are opti-cally pumped from a landstation. The amplification typi-cally corresponds to 75 kmadditional transmission systemlength, and is available withup to 96 transmission chan-nels.RAB is designed andtested to 3000 m sea depth,also implying long termprotection from hydrogen andmoisture ingress. Likewise, the optical cable overall axialstrength and electrical proper-ties are maintained. RABpermits easy adaptation to all Nexans’ fibre optic seacables and is deployed withstandard installation proce-dures and techniques.

Accessories

Typical elements subsea supplied by Nexans Norway

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Over the years expertise andexperience in testing thevariety of special cables hasbeen developed. The testmethods and equipment areselected to meet bothcustomer and internaldemands. The tests areperformed as standard (e.g.IEC, ETSI, Electra) tests or onspecial request according tocustomer specifications, andcan be defined in five maincategories:

Optical testsFibre Attenuation

- OTDR Measurements- Cut – Back- Spectral attenuation

Cut – Off WavelengthChromatic DispersionPMDTHERMAL TESTSTemperature StabilityAgeingCorrosion StudiesCompatibility StudiesHydrogen studies

Mechanical testsTensile PerformanceFatigueTorsional StabilityImpact CrushHydrostatic PressureRepeated Bending

Fire characteristicsFlame RetardanceFire Resistance

Electrical testsResistanceInsulation ResistanceHigh VoltageImpedance/AC measure-ments

- Capacitance- Inductance- Attenuation- Conductance

Cross TalkTime Domain ReflectometryEnvironmental ManagementSystem

Testing

Testing

Flexrig

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Certificates for Telecom, Nexans Norway AS, Telecom and Building Cables Division, previous "Communications Cable Division", held a Quality System Certificate according to NS-EN ISO 9001,since 11th of November 1991, latest issue 17th of December 2002.

The Division also held an Environmental System Certificateaccording to NS-ISO 14001, since 25th of October 2000,latest issue 17th of December 2002

Management�System�Certificates

Certificates

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Your contacts for Special Offshore Cables are:

Marketing Director

Ragnar Vogt +47 22 88 62 2�/ ragnar.vogt@nexans.com +47 90 92 01 88

Oil & Gas

Jon Seip +47 22 88 62 22/ jon.seip@nexans.com +47 90 1� 1� 9�

Karin Vaslestad +47 22 88 62 24/ karin.vaslestad@nexans.com +47 90 07 2� 24

Venke Sørlie +47 22 88 62 00/ venke.sorlie@nexans.com +47 90 97 7� �0

Solveig C.A. Sekne +47 22 88 62 20/ solveig.sekne@nexans.com +47 9� 08 0� 82

Telecom

Vegard Briggar Larsen +47 22 88 62 21/ vegard-briggar.larsen@nexans.com +47 97 07 04 64

Gunnar Berthelsen +47 22 88 62 07/ gunnar.berthelsen@nexans.com +47 90 92 02 �1

Rolf Bøe +47 22 88 62 2� rolf.boe@nexans.com

Domestic Market

Jon Martin Krogstad +47 22 88 62 14/ jon-martin.krogstad@nexans.com +47 90827077

Morten Johansen +47 22 88 62 �2/ morten.johansen@nexans.com +47 91 �� �8 ��

Postal address: Nexans Norway AS P.O. Box 64�0 Etterstad N-060� Oslo, Norway Telefax: +47 22 88 62 60

Nexans Norway AS

Nexans Norway ASP.O. Box 6450 Etterstad, N-0605 Oslo, Norway

Tel. + 47 22 88 61 00 • Fax + 47 22 88 62 60 • www.nexans.no

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