< span style=" background-color:#ffffff color:#333333 font-family:sans-serif,Arial,Verdana,& quot Trebuchet MS& quot font-size:13px" > IEC 61400-5:2020 specifies requirements to ensure the engineering integrity of wind turbine blades as well as an appropriate level of operational safety throughout the design lifetime. It includes requirements for:< / span>

• aerodynamic and structural design,


• material selection, evaluation and testing,


• manufacture (including associated quality management),


• transportation, installation, operation and maintenance of the blades.

< span style=" background-color:#ffffff color:#333333 font-family:sans-serif,Arial,Verdana,& quot Trebuchet MS& quot font-size:13px" > The purpose of this document is to provide a technical reference for designers, manufacturers, purchasers, operators, third party organizations and material suppliers, as well as to define requirements for certification.< / span>