SEAR attracts another million orders to land

After SEAR furnishing or equipping the wind farms Dudgeon and Galloper off the coast of Great Britain, Rentel off the coast of Belgium ,as well as Hohe See and Borkum Riffgrund II in the German North Sea with special electrical engineering, the company could now order the further expansion of the first securing of the municipal offshore wind farm Trianel Borkum II. in partnership with the Smulders Projects Belgium, based in Antwerp, SEAR is installing seaworthy, highly complex technical equipment in the 32 so-called Transition Pieces (TP = approx. 30 m high and 7 m in diameter connecting pipes between the offshore foundation and the windmill tower) components. After prefabrication in the company's own workshops in Rostock and the final assembly in Antwerp, these components are then installed in the Trianel Borkum II offshore wind farm. The magnitude of this order amounts to over 10 million euro. This project is planned to be completed by mid-2018. The Transition Pieces (TP) on the offshore wind turbines are the link between the monopile foundation, ie the part that lies on the seafloor and the actual tower of the windmill. A transition piece is about 20-30m high and about 7m in diameter and has a weight of about 300t. A transition piece is not the only mechanical interface between the wind turbine and the foundation on the seafloor, additionally the interface between the medium voltage sea cable and the windmill generator, as well as an access point for service technicians to the windmill. From the above stated requirements, a variety of electrical equipment is installed in each Transition Piece. These include facilities to connect the 33kV medium voltage submarine cable to the 33kV grid connection of the windmill. Likewise, facilities must be built into the TPs to later connect communication lines located in the 33kV medium voltage cable to the windmill communications interface. To ensure safe operation of the wind turbines at sea, more electrical components are required, for example navigation lights and sonar transponders to avoid ship and submarine collisions. Added to this are electrical identification systems and flight lighting to assist approaching helicopters bringing service technicians to the windmills. Power supply and lighting systems with emergency light functions inside the TPs and also outside for the work platform and the boat landing are also required. All of these electrical equipment are mounted and connected by SEAR in the TPs. For this purpose, a large part of the equipment is prefabricated in the SEAR construction plant in Rostock, equipped with cables and pre-tested, so that an efficient installation by the employees in Antwerp is possible. The big challenge is the fact that all components have to work immediately and troublefree after installation at sea.

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