NSW Submarine Power Cables Brochure

NSW?®?SubmariNe?PoWer.?Cables?for?the?future,?delivered?today.After NSW was founded in 1899 by Felten & Guilleaume and the Deutsch-Atlantische Telegraphen-gesellschaft, Siemens became one of its major shareholders in 1931, and acquired the remaining stock in 1995. In 2000, NSW became a subsidiary of Corning Cable Systems. Since 2007, NSW has been a 100-percent member of the General Cable Corporation (NYSE:BGC) and has become the competence center for submarine cables for the General Cable Group.NSW benefits not only from General Cable’s profound exper-tise but also from its global reach in the wire and cable industry. Quality, state-of-the-art technology and customer focus are General Cable’s top priorities. Experience, Innovation and ServiceNorddeutsche Seekabelwerke GmbH (NSW) has been manufac-turing underwater cables since 1899. NSW was already laying its first submarine telecommunica-tion cable in 1904, approximately 7,993 kilometers in length. A century of experience in armored and non-armored submarine cables for carrying power, signals, communications and fiber-optic applications has formed the foundation for a forward-looking organization committed to innovation and unrivalled customer service.NSW’s research-and-development and product-management teams work in close cooperation with General Cable’s experts for power transmission as well as leading engineering companies to create state-of-the-art solutions for many of the world’s leading power utili-ties and the oil and gas industry. Full Service ProviderNSW offers the full range of mechanical, electrical as well as fibre-optic accessories, e. g. hang-off heads, cable protection systems, power connectors, cable joints, topside cables, fibre-optic splice equipments and any other required garnitures and supplies.Taking customer requirements into account, we offer high quality tailor-made solutions or standard products from world-leading manufacturers.The installation, termination and testing of the cables and their related accessories will be per-formed by our own highly qualified team of jointers or by well-known specialised companies under supervision of NSW.NorddeutSChe?SeekabelWerke?Gmbh?(NSW)?the?submarine?competence?center?within?the?General?Cable?GroupPower transmission and distribu-tion are becoming more and more an enabler of a sustainable energy concept; alternatives to fossil fuels are a necessity for avoiding the disadvantages of CO² emis-sions. Windfarms, tidal power plants and wave-energy converter farms (WEC) are possible answers to this question, which we support proactively with innovative cable concepts.Offshore WindfarmsNSW can draw upon extensive experience in delivering and laying cables for the growing offshore wind industry. Together with our customers, we supply individu-ally tailored solutions for power transmission, both for in-field cabling of the wind turbines, and also for connecting windfarms to transformer substations. NSW ® Submarine Power Cables are supplied in all the required lengths. Based on our outstanding history as well as on a wide range of recent projects we are most ex-perienced with all types of turbine and platform connections. Successful and punctual comple-tion of projects in the North and Baltic Seas have made NSW a much-in-demand partner for na-tional and international power utili-ties, and for windfarm developers.Offshore Oil and Gas IndustryFundamental changes in the exploitation infrastructure in the global oil and gas industry do require state-of-the-art transmis-sion and distribution solutions, based on highly reliable cable designs. As a consequence, tailor-made solutions are needed in most cases. As the recognized experts in submarine power cables for the offshore oil and gas industry, NSW can offer these solutions by meet-ing the most stringent of industrial requirements. We offer custom-ised, flexible cable solutions, while at the same time being able to access our far-ranging technical knowledge of cable designs. NSW ® Submarine Power Cables are reliable and cost-effective even under extreme conditions.Island ConnectionsNSW ® Submarine Power Cables connect islands to onshore power grids. Helgoland’s link to the German power grid with a 53 km MV / AC cable is one of our finest reference projects. Since 2009, this North Sea island, well-known both for its tourism and for its large nature reserve, has no longer needed any diesel genera-tors for producing electricity. The team from NSW has proved that cables can be properly laid even in biosphere reservations in full compliance with the needs of both technology and the natural envi-ronment.SubmariNe?PoWer?CableS??for?reNeWable?eNerGieS?deSiGN?of?SubmariNe?PoWer?CableSNSW ® Submarine Power Cables are used for various medium and high voltage appli-cations, e.g. in offshore wind farms, the oil & gas industry, island connections, static tidal and wave power applications as well as lake and river crossings. National and international standards, e. g. IEC, VDE and CIGRE Electra recommenda-tions are respected in NSW’s cable design, manufacturing and testing.NSW offers several cable design options according to individual customer require-ments and environmental conditions, e. g. concentric or segmented conduc-tors, XLPE or EPR insulations, tape or wire screens and radial metallic water barriers. The components can be further adapted to peripheral equipment like DTS systems for real-time temperature monitoring. Tailor-made solutions for specific ap-plications are available. Even complex composite cables with different power and communication elements can be designed and manufactured. HV DC cables as well as inter-array cables operating at increased voltage levels are within the product range of NSW.1011987654321High-Voltage AC Submarine Cable3 x 1200 mm² Cu 87 / 150 kV1 1200 mm² Milliken conductor, water blocked 2 Inner semi-conductive layer3 XLPE insulation4 Outer semi-conductive layer5 Swelling tape6 Lead sheath7 Outer sheath semi-conductive PE8 Filler9 Fibre-optic element10 Bedding layer11 Galvanized steel wires filled with bitumen compound12 PP yarn cladding12Medium-Voltage AC Submarine Cable3 × 120 mm² Cu 18 / 30 kV1 120 mm² round conductor, water blocked2 Inner semi-conductive layer3 XLPE insulation4 Outer semi-conductive layer 5 Swelling tape6 Copper counter helix7 Copper wire screen8 Swelling tape9 Aluminium tape 10 Outer sheath 11 Filler12 Fibre-optic element13 Bedding layer 14 Galvanized steel wires filled with bitumen compound15 PP yarn claddingHigh-Voltage DC Submarine Cable1 × 630 mm² Cu ± 250 kV1 630 mm² round conductor, water blocked2 Inner semi-conductive layer3 XLPE insulation4 Outer semi-conductive layer 5 Swelling tape6 Lead sheath7 Outer sheath PE8 Bedding layer 9 Galvanized steel wires filled with bitumen compound10 PP yarn cladding101112131415987654321All illustrations are examples for NSW ® Submarine Power Cable designs. Please contact NSW for further information. Illustrations are on a scale of 1 : 2.2610987654321For over one century, NSW has been acquiring unsurpassed experience and a proven track record in submarine cable instal-lation. Since 2009, NSW has been using this experience also for the installation of submarine power cables, as turn-key solutions with own installation spreads, or with chartered Installation & Trenching Support Vessels.Project Management and EngineeringNSW’s experienced marine engi-neering team, in close cooperation with our project implementation department, offers full-coverage complete cable design, engineering and installation capabilities, to meet even the most challenging requirements of interconnection, export and infield sea cable proj-ects. Customers benefit from our long-term project management ex-perience in submarine cable instal-lation for the telecommunication market as well as from a proven track record in turnkey solutions for the offshore wind industry.Cable Loading at NSW Facilities NSW’s Nordenham facility incor-porates its own deep water pier, which is located near the mouth of iNStallatioN?of?SubmariNe??PoWer?CableSQuality Management at NSWOut of conviction, NSW has implemented quality standards in its company process-es and expanded them to an integrated management system according to ISO 9001 and ISO 14001. As work safety is an essential part of NSW’s philosophy, we are also certified according to OHSAS 18001. Consequently, the synergies created by a holistic system can be employed in the interests of our customers. Independent companies use regularly oc-curring inspections to monitor compliance with the requirements of the standards. The certification documents from Lloyd’s Register Quality Assurance GmbH at-test that NSW uses an active and well-functioning quality and environmental management system.Measuring and Testing at NSWA wide range of measuring and test equip-ment and trained staff experienced in all the relevant measuring methods and test standards is available. NSW works to national and international test standards. In addition, NSW makes use of indepen-dent test bodies such as BAM, PTB, VDE, EPM, FHG / ILV as well as other certified laboratories.In order to assure the quality of NSW products, intensive, long-term investiga-tions are carried out on the product and materials, going far beyond the specified test requirements.The continuous checking, monitoring and evaluation of the tests is just as much as a part of the investigations as the subse-quent documentation of the results.the River Weser. Minimum water depth is maintained at 11 m, thus providing access to all sizes of cable vessels. The cable load-out system reaching from the factory to the pier is designed to enable continuous lengths of submarine cables to be transferred from the storage areas to the vessel in a two-line parallel loading activity.NOSTAG 10NOSTAG 10, the German-flagged, GL approved installation barge, is owned by a consortium of NSW, Hans Schramm & Sohn GmbH & Co. KG and Tiefbau-GmbH „Unterweser“ (TAGU). NOSTAG 10 is equipped with five towing winches, anchors, generators, azimuth thrusters, water pumps, linear cable engines, cranes and sophisticated submarine sensors associated with cable installation. The barge’s flexible cable system has a capacity of up to 3,500 tons of cable. For cable lay and burial a vertical injector is utilized, en-abling burial depths up to 7.5 m in one simultaneous operation up to water depths of 40 m. The NOSTAG 10 is beachable, and therefore ideally suited for shore tie-ins, island connections and other shallow-water applications such as windfarms.Cable InstallationNSW provides specific solutions for a wide variety of cable installa-tion applications as defined by wa-ter depth, seabed conditions and deployed offshore structures. Key personnel to supervise loading, laying and installation procedures are readily available within our regular staff.As an alternative to the NOSTAG 10, the cable could be free-laid by an Installation & Trenching Support Vessel, and buried by means of an ROV trencher in a simultaneous operation or by a jetting ROV in a post-lay burial operation. NSW is an EC member of the In-ternational Cable Protection Committee (ICPC) and all opera-tions, whether cable installation, survey, pre-lay grapnel run / route clearance or post-lay burial are performed in accordance with the applicable ICPC recommendations and local legislative requirements.NorwayGeneral Cable Nordic ASRandemveien 17PO Box 113, 1541 VestbyPhone: + 47 64 95 59 00Fax: + 47 64 95 59 10firmapost@generalcable.noGreat?britainNSW Technology LimitedUnit G8, The Enterprise CentreExploration Drive, Bridge of DonAberdeen AB23 8GX Phone: + 44 1224 339880Fax: + 44 1224 339889sales@nswcable.co.ukGermanyNorddeutsche Seekabelwerke GmbHKabelstr. 9–1126954 NordenhamPhone: + 49 4731 82 0Fax: + 49 4731 82 13 01power@nsw.comwww.nsw.com110 Broschüre Power 2011-02