请注意:此版本的所有临时修订版将在您购买时提供。小型风力涡轮机系统SUL 61421范围1。1这些要求包括小型风力涡轮机系统（WT）和电气组件。根据本标准，小型风力发电机被视为风力涡轮机，用户或服务人员不能或无意进入涡轮机进行操作或维护。这些装置用于独立（非并网）或公用设施交互应用。公用设施交互、并网WT与电力系统（EPS）并联运行，为普通负载供电。 1.2 WT功率，控制和保护系统的评估仅限于其在制造商范围内的功能“s规定的限制和响应时间。这些控制和保护功能根据电击和火灾风险进行评估。旨在根据本文件评估的电力传输控制和保护功能的电气组件应与AWEA 9.1《小型风力涡轮机性能》中规定的机械和结构限制相协调nce和安全标准、IEC 61400系列文件或德国劳埃德船级社:风力涡轮机文件认证指南。 1.3这些要求不包括:a）用于海上安装的WT发电系统。b） 用于危险场所的WT发电系统；c） WT系统或子组件的机械或结构完整性；d） 验证制造商定义的控制和保护限制是否将WT系统保持在其安全机械和结构限制范围内；e） 梯子、起重机支架、电梯安装装置、脚手架、人员系带或其他人员承重功能部件的机械荷载。1.4这些要求涵盖的风力涡轮机产品拟按照国家电气规范ANSI/NFPA 70进行安装。 1.5根据本标准对产品进行的评估包括对涡轮机中包含或可用的所有特性和功能的评估，或在涡轮机提供的文件中提及的所有特性和功能的评估，前提是这些特性或功能可能影响产品对本标准的合规性。1.6打算或要求用户或服务人员进入涡轮机以对涡轮机进行操作或维护的涡轮机被视为大型风力涡轮机系统，并包含在风力涡轮机发电系统的调查大纲中，UL 6140.1.7这些要求包括WT额定1500 Vac或以下

Please note: All interim revisions for this edition available at time of your purchase will be included.Small Wind Turbine SystemsUL 61421 Scope1.1 These requirements cover small wind turbine systems (WT) and electrical subassemblies. With respect to this standard, small WT are considered to be wind turbines where a user or service person cannot or is not intended to enter the turbine to operate it or perform maintenance. These units are intended for use in stand-alone (not grid-connected) or utility interactive applications. Utility-interactive, grid-tied WT are operated in parallel with an electric power system (EPS) to supply power to common loads.1.2 The WT power, control and protection systems are evaluated only to the extent that they function within the manufacturer"s specified limits and response times. These control and protection functions are evaluated with respect to risk of electric shock and fire. It is intended that the electrical subassemblies that address power transfer control and protection functions evaluated per this document are to be coordinated with the mechanical and structural limitations specified in AWEA 9.1, Small Wind Turbine Performance and Safety Standard, the IEC 61400 series documents, or Germanischer Lloyd: Guideline for the Certification of Wind Turbines documents.1.3 These requirements do not cover:a) WT generating systems intended for off-shore installation.b) WT generating systems intended for hazardous locations;c) Mechanical or structural integrity of the WT system or subassemblies;d) Verification that the manufacturer-defined controls and protection limits maintain the WT system within its safe mechanical and structural limits;e) Mechanical loading of ladders, hoist supports, elevator mounting means, scaffolding, personnel tie offs, or other personnel load-bearing functional parts.1.4 The wind turbine products covered by these requirements are intended to be installed in accordance with the National Electrical Code, ANSI/NFPA 70.1.5 The evaluation of products to this standard includes evaluation of all features and functions incorporated in or available for the turbine, or referred to in the documentation provided with the turbine, if these features or functions can affect compliance of the product with this standard.1.6 Turbines where a user or service person is intended or required to enter the turbine to operate or perform maintenance on the turbine are considered to be large wind turbine systems and are covered in the Outline of Investigation for Wind Turbine Generating Systems, UL 6140.1.7 These requirements cover WT rated 1500 Vac or less