IEC 61400的本部分规定了评估陆上风力涡轮机支撑结构（包括基础）的结构完整性时使用的要求和一般原则。范围包括用于一般或现场特定目的的土壤岩土工程评估。根据本文件或IEC 61400-1设计并记录连接至转子机舱组件（包括连接至偏航轴承）的任何法兰和连接系统的强度。范围包括所有可能影响 结构完整性，如组装和维护。 评估假设负荷数据是按照IEC 61400-1或IEC 61400-2的定义，并使用负荷的隐含可靠性水平和部分安全系数得出的。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This part of IEC 61400 specifies requirements and general principles to be used in assessing the structural integrity of onshore wind turbine support structures (including foundations). The scope includes the geotechnical assessment of the soil for generic or site specific purposes. The strength of any flange and connection system connected to the rotor nacelle assembly (including connection to the yaw bearing) are designed and documented according to this document or according to IEC 61400-1. The scope includes all life cycle issues that may affect the structural integrity such as assembly and maintenance. The assessment assumes that load data has been derived as defined in IEC 61400-1 or IEC 61400-2 and using the implicit reliability level and partial safety factors for loads.All current amendments available at time of purchase are included with the purchase of this document.