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Global Tech 1 Submarine Link Cables Installation and Protection Photo 5

Global Tech 1 – Submarine Link Cables Installation and Protection

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Asso.subsea > Projects > Cable Laying > Global Tech 1 – Submarine Link Cables Installation and Protection

The Global Tech 1 (GT-1) project concerns the realization of a new HVAC grid connection between the offshore substation BorWin Gamma and the grid connection point (OSS) on the OWF Global Tech 1 by jointing the existing cables and new cables.

The system is composed by two power cables with an interstitial optical unit that will be simultaneously laid and buried independently from each other on two parallel routes of approx. 14.5km length each.

Prysmian has awarded ASSO a contract for the execution of work includes 29km (2 cables, 14.5km each) submarine cable installation and protection including the initial pull-ins on platform and joining of the new cables with the existing ones.

ASSO’s scope of work included:

  • Preparation activities // Mobilization activities 
  • Platform pull-in
  • Jointing operations (vessel serves as working platform) 
  • Simultaneous lay & Burial 

PROJECT SPECIFICATIONS

  • Owner
    TenneT TSO GmbH
  • Contractor
    Prysmian PowerLink Sr
  • Year
    2019
  • Location
    North Sea, Germany
  • Cable Type
    hvac
  • Cable Diameter
    221mm
  • Laying Length
    28220m
  • Jetting Length & Burial Depth
    26950m @ 1.5m
  • Max Water Depth
    40m
  • Global Tech 1 Submarine Link Cables Installation and Protection Photo 5
  • Global Tech 1 Submarine Link Cables Installation and Protection Photo 4
  • Global Tech 1 Submarine Link Cables Installation and Protection Photo 3
  • Global Tech 1 Submarine Link Cables Installation and Protection Photo 2
  • Global Tech 1 Submarine Link Cables Installation and Protection Photo 1
  • Global Tech 1 Submarine Link Cables Installation and Protection Photo 6

SERVICES PROVIDED

Some of the services we provided for Global Tech 1 – Submarine Link Cables Installation and Protection 

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VESSELS USED

  • Atalanti

    DP II – Cable Laying Vessel The Atalanti is a DP-2 Cable Laying Vessel that has been specially …

    Atalanti Cable Laying Vessels

  • Artemis

    DP I – Anchor Handling and Supply Vessel The Artemis is a DP-1 Anchor Handling Tug & Supply …

    Artemis General Support Vessels

EQUIPMENT USED

  • HydroPlow

    Asso.subsea Hydroplow is a lightweight jetting sled that is intended for use in tandem with a CLV (Cable …

    HydroPlow Ploughs, Subsea Burial Equipment

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