NorSea Com 1

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NorSea Com-1, now called Tampnet, is a submarine telecommunications cable system in the North Sea linking the UK and Norway, and connecting five off-shore platforms.

It has landing points in:

  1. Lowestoft, Suffolk, UK
  2. Kårstø, Rogaland, Norway

And connecting the following platforms:

  1. Draupner platform, operated by Gassco
  2. Ula oil field, operated by BP
  3. Ekofisk, operated by ConocoPhillips
  4. Valhall oil field, operated by BP
  5. , operated by ConocoPhillips

The cable system is owned by .

Originally, NorSea Com was owned 50% by Telia and 50% by . After Enitel's bankruptcy in September 2001, Telia acquired the whole cable. In 2011, Tampnet AS acquired 100% of NorSeacom.

Installation started in 1998 and the cable was ready for service in 1999 with an initial capacity of a STM-16 system of 2.5 Gbit/s. Later, Enitel added a 16x10 Gbit/s wavelength-division multiplexing system. The cable contains 24 optical fibers.

NorSea Com-1 has a cable length of about 750 km between Draupner and Lowestoft. Between Draupner and Kårstø (ca 200 km) the system uses fibers in Equinor's submarine cable.

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