2024-03-28
http://w3.windfair.net/wind-energy/pr/34744-nkt-power-cable-sweden-germany-baltic-cable-interconnector-repair-damage-fast

News Release from NKT GmbH

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NKT completes repair of the HVDC interconnector Baltic Cable in only 29 days

NKT has finalized a turnkey offshore repair of the Baltic Cable connecting the power grids in Sweden and Germany after it was damaged due to external impact. The power cable system was restored within 29 days from the initial fault notification and is now back in full operation.

Image: NKTImage: NKT

Speed was essential when an anchor damaged the Baltic Cable power link interconnecting the national power grids of Sweden and Germany during the last days of April. NKT was awarded the contract to bring the 250 km 450 kV HVDC power cable back in operation as fast as possible.

After the initial notification NKT quickly mobilized staff and equipment for localization of the fault, de-burial and cut and seal operation onboard a subcontracted vessel provided by JD Contractor. The initial operation was swiftly conducted and within five days the exact fault position was located, the cable de-buried and cable ends sealed and prepared for repair. Within 29 days the Baltic Cable was repaired after efficient preparations and the final execution completed by the cable laying vessel NKT Victoria.

"I am very pleased with our short mobilization time enabling us to bring the Baltic Cable back into operation in less than a month. Time and accuracy are crucial for the success of power cable service operations and here we clearly demonstrated that we are quick and efficient when mobilizing our equipment and skilled repair team even under the current circumstances with Covid-19," says Axel Barnekow Widmark, Executive Vice President and Head of Service in NKT, and continues: "The operational success was ensured by efficient execution of all parties involved, minimizing the outage time and bringing the important interconnector back into operation. The operations also showed the importance of having a pre-negotiated repair contract and a sufficient and updated stock of spare cable parts in place to ensure quick mobilization and execution."

The damaged cable section was located roughly 20 kilometers outside the Swedish coast at a water depth of 30 meters and NKT completed the repair operation by 28 May even though NKT Victoria had to complete the offshore repair under harsh weather conditions. For the owner of the power cable link, Baltic Cable AB, the swift operation was a success.

"We are very happy for the fast response and support NKT provided to us throughout this project and we are very satisfied with the professional execution of the repair operation from start to finish," says Nils Nordtorp, Technical Manager at Baltic Cable AB. 

NKT is one of the leading companies in the market providing both stand-alone repair operations and customized service packages with the possibility to include the unique 10 days vessel guarantee to ensure the shortest mobilization time in the market and remove uncertainty from the repair operation time.

Source:
NKT
Author:
Press Office
Link:
www.nkt.com/...
Keywords:
NKT, power, cable, Sweden, Germany, Baltic Cable, interconnector, repair, damage, fast



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