Find the most up-to-date version of DNV-OS-J at Engineering The standard, Design of Offshore Wind Turbine Structures (DNV-OS-J), provides principles, technical requirements and guidance for design, construction . Classification society DNV GL was expected to issue revised given in DNV GL Offshore Wind Guideline , DNV-OS-J and.
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Pushing the Design Envelope: About Events Media partners Sponsors Contact. In order to ensure stakeholders a transparent, cost efficient and unified approach of building wind energy technology, DNV has since taken on the role of developing standards, specifications and guidelines.
The standard, Design of Offshore Wind Turbine Structures DNV-OS-Jprovides principles, technical requirements and guidance for design, construction and in-service inspection of offshore wind turbine structures.
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The updated standard which aims to reduce cost and increase dng is now available. These documents integrate decades of experience from the offshore industry with in-depth wind turbine knowledge gained from the type certification of large megawatt turbines. Section 9 for grouted connections is rewritten. Section 12 for transport and installation is rewritten.
DNV releases updated standard for offshore wind turbine structures – PES – Power & Energy Solutions
Section 13 for inspection is rewritten. Further information and copies of these documents can be obtained here. It is providing a more j1011 introduction and bringing the standard in alignment with DNV Rules for Marine Operations. These have been based on recent research including lab-tests and replace previous requirements which have proven inadequate. The updates are focused on reducing costs and increasing safety.
After its launch in it has been widely used in the offshore wind industry. Section 11 for corrosion protection is restructured and expanded.
It is first stating requirements for which types of corrosion protection shall be applied in the different corrosion zones, and subsequently stating requirements for corrosion allowance, cathodic protection and coating.
It is clarifying that the scope is limited to tubular and conical grouted connections in monopile structures and referring to other standards for grouted connections n101 other types of structures.
DNV along with leading industry participants are currently completing laboratory testing on scale effects of grouted connections with shear keys to provide the industry with improved data and guidance on the use of shear keys in monopile solutions. Further, it introduces new design j1001 for grouted connections without shear keys. It is bringing the ddnv in alignment with current practice for the necessary level of inspection in large wind farms and giving the owner a choice between periodic inspections and inspections according to a risk-based inspection plan.