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Windtech International March April 2024 issue

 

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Van Oord buries cables to 55 metres depth for offshore grid connectionThe Van Oord-Hellenic Cables consortium will be installing 4 subsea 220 kV AC cables that will connect 2 offshore platforms to the onshore electricity grid. The first 2 cables to the Alpha platform will be installed this year. The other 2 cables, meant for the Beta platform, will follow in 2021.
 
TenneT is building the Hollandse Kust (zuid) offshore grid to connect new offshore wind farms. 4 cables will have to be buried into the North Sea seabed for this purpose. For the first 10 kilometres of the cable route, these cables will have to be buried more than 5 metres into the seabed in order to cross the busy shipping route Rotterdam Maasmond. The preparatory work has now been completed. The cable was pulled ashore via a direct drill to the new transformer substation that is being built on the Maasvlakte, the Netherlands. From this point, the cable with a total length of 42 kilometres to the wind zone Hollandse Kust (zuid) will be laid by the Deep Dig-It, a remote-controlled trencher.
 
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