Offshore Cable Installation - Lillgrund - Vattenfall
Offshore Cable Installation - Lillgrund - Vattenfall
Offshore Cable Installation - Lillgrund - Vattenfall
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wind turbines and electrical system. Phil/Hochtief was the main supplier of the gravity base<br />
structure platforms, which will not be addressed in this report.<br />
2.2 <strong>Cable</strong> installation organisation<br />
The wind turbines were purchased from Siemens Wind Power, and the contract included<br />
high voltage cables in the form of internal grid cables and export cable. The high-voltage<br />
cables were supplied by ABB High Voltage <strong>Cable</strong>s. ABB also used subcontractors for the<br />
installation work, see figure 2.<br />
Constructor:<br />
Main contractors:<br />
Subcontractors:<br />
Seløy<br />
Undervannsservice A/S<br />
Export cable<br />
installation work<br />
Figure 2. Schedule over the contractors<br />
Due to the importance of the submarine cables and the complexity of the installation<br />
<strong>Vattenfall</strong> AB had on-site supervision.<br />
2.3 <strong>Lillgrund</strong> cable system<br />
Siemens Windpower<br />
ABB High Voltage <strong>Cable</strong>s<br />
Svensk<br />
Sjöentreprenad AB<br />
(SSE)<br />
Diving and<br />
transports etc.<br />
The offshore wind farm electrical network includes a series of inter-array cables and an<br />
export cable, see figure 3.<br />
6 (30)<br />
<strong>Vattenfall</strong> AB<br />
Peter Madsen<br />
Rederi A/S<br />
Phil/Hochtief<br />
Baltic <strong>Offshore</strong> AB<br />
Transports etc. Inter array cable<br />
installation work
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