IEC 61400-26-1:20 11(E)定义了风力涡轮机发电系统(WTGS)的一般信息类别，考虑了基于时间分数的内部和外部条件，并指定了以下内容: -考虑可用性和其他性能指标的WTGS的一般信息类别； -信息类别优先级，以便区分并发类别； -每个信息类别的入口和出口点，以便分配指定的时间； -提供各种实例的信息性附件。

IEC 61400-26-1:2011(E) defines generic information categories to which fractions of time can be assigned for a wind turbine generating system (WTGS) considering internal and external conditions based on fraction of time and specifying the following:
- generic information categories of a WTGS considering availability and other performance indicators;
- information category priority in order to discriminate between concurrent categories;
- entry and exit point for each information category in order to allocate designation of time;
- informative annexes providing various examples.