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Cyclades Project Phase B Photo 7

Cyclades Project - Phase B

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Asso.subsea > Projects > Cable Laying > Cyclades Project - Phase B

The Cyclades Phase B project consists of two interconnections, one between Paros and Naxos and one between Naxos and Mykonos.

The Paros-Naxos interconnection has a maximum sea depth of approximately 60 meters and the length of the indicative route is 7.1 km for the submarine section plus approximately 3,050m for the underground section on Paros shore and 100m for the underground section on Naxos shore. 

The Naxos-Mykonos interconnection has a maximum sea depth of approximately 110 meters and the length of the indicative route is 44.7 km for the submarine section plus 100m for the underground section on Naxos shore and 420m for the underground section on Mykonos shore.

IPTO requested an AC Power and an Optical Cables System consisting of:

  • 1x three‐core AC 150kV XLPE Submarine Cable (3x1x300 mm² cross‐section);
  • 1x Interstitial Optical Submarine Cable (inside the corresponding power cable);
  • 3x single‐core Land cables of corresponding power transmission capability;
  • 1x Optical Land Cable and all other necessary equipment (Sealing ends, transition joints, etc.), for the full completion of the link.

Fulgor S.A. has awarded ASSO a contract for the execution of cable laying, landing and protection of the submarine cable.

ASSO’s scope of work included:

  • Preparation Activities // Mobilization Activities
  • Cable Loading & Transportation 
  • Pre-excavation - Onshore 
  • Pre-excavation - Nearshore/Shallow Waters  
  • Pre-lay (MBES/visual ROV) Survey
  • Pre-lay Mattresses Installation
  • Pre-lay Grapnel Run Operations 
  • Cable Lay Operations 
  • Half Shell Polyurethane Ducts Installation 
  • Cast Iron Shells Installation 
  • Post Lay Burial Operations - Onshore and Nearshore 
  • Post Lay Burial Operations up to 30m w.d.  

PROJECT SPECIFICATIONS

  • Owner
    IPTO S.A.
  • Contractor
    Fulgor S.A. Hellenic Cables Industry
  • Year
    2020
  • Location
    Greece
  • Cable Type
    hvac
  • Cable Diameter
    194mm
  • Cable Weight
    Cable Weight in air: 67.1kg/m, Cable Weight in water: 39.7kg/m
  • Alternative Protection
    Cast Iron Shells: 745m, Mattresses: 25m, Pre-excavation and reinstatement: 445m, Half shell polyurethane ducts installation: 205m
  • Laying Length
    52620m (Paros-Naxos:7055m & Naxos-Mykonos:45565m)
  • Trenching Length & Burial Depth
    3540m @ 0.5m or 1.0m (Paros-Naxos:670m & Naxos-Mykonos:2870m)
  • Jetting Length & Burial Depth
    880m @ 1.0m or 2.0m (Paros-Naxos:660m & Naxos-Mykonos:220m)
  • Max Water Depth
    Paros-Naxos:60m & Naxos-Mykonos:110m

    Cyclades Project - Phase B

    The Cyclades Phase B project consists of two interconnections, one between Paros and Naxos and one between Naxos and Mykonos. The Paros-Naxos interconnection has a maximum sea depth of approximately 60 meters and the length of the indicative route is 7 ...

    Learn More
    Cyclades Project - Phase B
  • Cyclades Project Phase B Photo 10
  • Cyclades Project Phase B Photo 9
  • Cyclades Project Phase B Photo 8
  • Cyclades Project Phase B Photo 7
  • Cyclades Project Phase B Photo 6
  • Cyclades Project Phase B Photo 5
  • Cyclades Project Phase B Photo 4
  • Cyclades Project Phase B Photo 3
  • Cyclades Project Phase B Photo 2
  • Cyclades Project Phase B Photo 1

SERVICES PROVIDED

Some of the services we provided for Cyclades Project - Phase B 

  • Subsea Cable Laying Subsea Cable Laying
  • Subsea Cable Protection Subsea Cable Protection

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

  • Astrea

    DP II - Multipurpose Support Vessel The Astrea is a DP-2 Multipurpose Support Vessel built for worldwide operations ...

    Astrea General Support Vessels

  • Alcyone

    Multipurpose Support Vessel The Alcyone is a Multi-Purpose Support Vessel specially built for shallow water operations, in light ...

    Alcyone General Support Vessels

EQUIPMENT USED

  • AssoTrencher V Mk3

    Assotrencher V Mk3 is the 3rd version of the AssoTrencher V vehicle from the AssoTrencher series, designed for ...

    AssoTrencher V Mk3 Shallow Water Trenchers, Subsea Burial Equipment

  • AssoMat I

    The AssoMat I is a system for fast and accurate installation of mattresses and similar products designed for ...

    AssoMat I Mattresses Installation, Seabed Preparation Equipment

  • Atom

    'Atom' is an ultra-compact work class ROV comparable in size to an electric ROV system. It is designed ...

    Atom Remotely Operated Vehicles

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