IEC 61400-2:20 13涉及安全理念、质量保证和工程完整性，并规定了小型风力涡轮机(SWT)的安全要求，包括在指定外部条件下的设计、安装、维护和运行。它提供了适当级别的保护，防止这些系统在其计划寿命期间受到危害的损害。本标准涉及SWT的所有子系统，如保护机构、内部电气系统、机械系统、支撑结构、基础以及与负载的电气互连。虽然该标准类似于IEC 61400-1，但它确实简化并做出了重大改变，以便适用于小型风力涡轮机。与上一版相比，主要变化如下:-标题已作修改，以更好地反映范围； -重组为零件设计评估和零件类型测试，以与IEC 61400-22符合性测试和认证的使用相协调； -提供关于使用简化方程式的注意事项； -增加了各种附件（风力条件、热带风暴、极端环境条件、EMC测试、动态行为等）。

IEC 61400-2:2013 deals with safety philosophy, quality assurance, and engineering integrity and specifies requirements for the safety of small wind turbines (SWTs) including design, installation, maintenance and operation under specified external conditions. It provides the appropriate level of protection against damage from hazards from these systems during their planned lifetime. This standard is concerned with all subsystems of SWTs such as protection mechanisms, internal electrical systems, mechanical systems, support structures, foundations and the electrical interconnection with the load. While this standard is similar to IEC 61400-1, it does simplify and make significant changes in order to be applicable to small wind turbines. The main changes with respect to the previous edition are as follows:
- the title has been modified to better reflect the scope;
- restructured into a part Design evaluation and a part Type testing to harmonise use with IEC 61400-22 conformity testing and certification;
- caution provided regarding the use of simplified equations;
- added various annexes (wind conditions, tropical storms, extreme environmental conditions, EMC testing, dynamic behavior, etc.).