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A worldwide presence

A worldwide presence. Serving customers on all continents Industrial presence in 40 countries and commercial activities worldwide 26,000 local experts. Serving essential needs. ENERGY RESOURCES. TRANSPORT. BUILDING. ENERGY AND DATA INFRASTRUCTURE.

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A worldwide presence

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  1. Footer can be personalized as follow: Insert / Header and footer I Date

  2. A worldwide presence Serving customerson all continents Industrial presencein 40 countries and commercial activities worldwide 26,000 local experts

  3. Servingessential needs ENERGY RESOURCES TRANSPORT BUILDING ENERGY AND DATA INFRASTRUCTURE Increasing demand for energy and data cables in the four main markets we serve.

  4. Nexans Norway

  5. Nexans Norway, more than 100 years of experience 1915 2000 Skandinaviske Kabel og Gummifabrikker AS Established as an industrial activity with headquarter in Oslo under the name Skandinaviske Kabel og Gummifabrikker AS Skandinaviske Kabel og Gummifabrikker AS Alcatel divests its cable activity in a separate company, Nexans. 2008 1972-1978 First Repeater Cable Project Suriname – Guyenne Submarine Cable System. Approximately 1,000 km connecting three countries in South America. New Production Units Communication Cables in Rognan (1972), High Voltage Cables in Halden (1975). 1987-1991 2016 Alcatel STK AS Alcatel takes over ITT’s ownership (1987) and the sompany is renamed to Alcatel STK AS 4.th ROC-2 Project: South Atlantic Inter Link Nexans' first intercontinental project will add second-generation fiber-optic submarine cable across the South Atlantic, from Brazil to Cameroon.

  6. Locations Rognan Products Halden Products HV XLPE submarine cables Umbilicals HV MI submarine cables Fiber optical submarine cables LV/MV cables ROV cables Small umbilicals Seismic cables/surveillance cables FO and Power elements Oslo Headquarter

  7. Rognan Plant – Products Riser Lightweight Well Intervention ROV MV Submarine Hybrids Ocean Monitoring Fiber, seaROC2 / URC1 PRM Installation

  8. Rognan Plant – cable track / quay facility

  9. Power transmission or combination power/optical transmission • The unique features of optical fibres almost exclusively call for the combination of power transmission and optical data transmission • Composite AC/FO cables represents the easy solution as FO elements can be integrated to the cable structure at the interstices between the power phases, however, mostly for short-haul applications • FO cable or FO elements into DC systems more challenging: • FO cable ”piggy backed” onto the DC cable, savings mainly on simultaneous installation • FO cable part of the DC cable, same technology as for repeater cables, but expanding on voltage rating, copper cross section and including return conductor

  10. Tailor made designs Not to scale ! Limited DC designs, mostly AC designs

  11. DCFO – not a new concept • What is meant by DCFO ? • DCFO is a name for cable with both power feed and aptical transmission capability • Partly developed for offshore oil and gas applications for control and operation of sub-sea valves several hundred km from the oil platform or floating production unit • Power transmission capacity limited, less than 100 kW at output • Cable structure consists of two electrical elements (one for power transmission and one for return current) and one optical element

  12. What drives the DCFO cable design ? • Transmission distance and power rating at cable output (MW) • Operating voltage (i.e. requirements to insulation system), conductor cross section, depth rating, mechanical strength (tensile/crush/impact), protection • Life time expectancy: 25 to 40 years, i.e. selection of key materials against ageing • Combination with optical fibres, number of fibres, types of fibres • Handling/installations characteristics (e.g. weight air/submerged, coilability) including the land portion of the system • Ease of repair/termination

  13. Optical repeater cables are examples of DCFO Features: up to 16 optical fibres, 15 kV power feeding, 220 KW at output 150 km

  14. How to reach 2 MW over 300 km ? Way forward. • Need to define all requirements carefully • Increase power rating (36 to 76 kV ??), definitely add more insulation • Increase copper content to lower ohmic resistance, i.e. lower power loss over the cable • Complete design study and propose cable design and development/qualification program • Develop and qualify cable and cable joint

  15. Footer can be personalized as follow: Insert / Header and footer I Date Nexans knows Power Transmission Valhall Electrification HVDC with integrated return + Fibre Optic Hywind Floating Wind Export OD 130 mm NorNed: DC, route length 580 km • DC and AC submarine interconnectors for energy exchange between countries, platform electrification or AC offshore WindFarm export cables • Paper insulated • XLPE insulated Installation of power cables with own cable ship c/s Skagerrak is equipped for the most advancedoperationswith DP3 and a 7000 ton turntable

  16. Floating cable at shore 19

  17. Land Operations • Landfall Preparations • Trenches on land • Cable transport and laying • Jointing • Assembly of Sealing Ends • Termination of Fibre Optic Cable • Site testing 20

  18. Jointing on Land 24

  19. Work in accordance with

  20. Footer can be personalized as follow: Insert / Header and footer I Date Thank you for your attention!Could General Decilio please join me for a moment Follow us: www.nexans.no

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