This Evia-Andros-Tinos project concerns the islands of Evia, Andros and Tinos are linked together by four outdated single-core oil-filled AC Submarine Power Cables. It has been planned by IPTO the replacement of the existing power transfer system between the aforementioned islands. The Evia-Andros-Tinos Project consists in the supply and installation of a Power and Optical Cable System for the two Crossings.

The submarine cable is a tripolar armoured cable which includes an interstitial fibre optic unit. The land cables system is typified by three (3) single core power cables and a separate fibre optic cable. Submarine and land cables are connected by sea/land joints that are installed at beach landings.

At Evia and Tinos landings, two sea-land joints bay are constructed in order to install joints to connect the submarine cable with the land cables. At these landings, land cables are installed from sea/land joint position to cable terminations inside the electrical stations.

Prysmian has awarded ASSO a contract for the execution of the onshore sites preparation, submarine cables protection and mattresses installation.

ASSO’s scope of work included:

  • Preparation activities // Mobilization activities 
  • Pre-excavation - Onshore
  • Post-lay mattresses (supply &) installation Rock placement 

Vessel/Equipment used:

  • AssoJet I
  • AssoTrencher IV 
  • AssoMat I
  • Triton XLS ROV 

 

Project Specifications

Evia – Andros – Tinos Project

Year:
2019
Contractor:
Prysmian PowerLink Srl
Cable Type:
Power 1x 150kV HVAC XLPE Composite
Cable Diameter:
215mm
Service Provided:
Cable Protection – Landing Assistance
Owner:
ADMIE (IPTO)
Trenching Length & Burial Depth:
1725m @ 0.5m, 1.0m or 2.0m
Location:
Evia – Andros – Tinos (Greece)
Max Water Depth:
30m