DNV-ST-0262 Lifetime extension of wind turbines

This standard (ST) provides principles, technical requirements and guidance for extending the lifetime of wind turbines onshore and offshore. 

The objectives of this ST are to:

• allow the assessment of wind turbines in order to ascertain whether they are fit for lifetime extension
• provide an acceptable level of safety (in combination with referenced standards, recommended practices, guidelines, etc.)
• serve as a standard for operators, manufacturers and experts for lifetime extension
• specify requirements for lifetime extension of wind turbines subject to DNV certification
• serve as a contractual reference document related to all questions concerning lifetime extension of wind turbines.

This standard is applicable to all types of wind turbines.