大家一起学标准之IEC61400-1(1)
对于上班族，上下班的路上都会耗费大量的时间，很多人为了高效的利用时间，都会抓紧利用通勤时间进行学习。
上下班的路上不管是坐公交地铁还是自己开车或骑自行车，都很难利用纸质的书籍或电子书进行学习，一般都是听音频的学习资料。
标准对于风电行业是十分重要的，一些重要的标准我一般都会放到手边随时翻阅。
而音频的规范资料是很少的，一般都是纸质或者电子版的，就算上下班的路上坐公交地铁，一只手扶着栏杆，另一只手拿着纸质规范或电子书也是非常困难的。
我也尝试过把电子版的规范转成音频，但效果都不太好，免费软件朗读的声音非常生硬。
直到我发现用公众 号的听全文朗读效果是最好的，利用这个功能上下班的路上就可以听规范了。
从今天开始，每个工作日的早上，我都会截取一段英文规范并翻译成中文，用十分钟的时间大家一起学标准。
今天就从EIC61400-1开始。
INTERNATIONAL ELECTROTECHNICAL COMMISSION
WIND ENERGY GENERATION SYSTEMS -
Part 1: Design requirements
FOREWORD
The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as ‘IEC Publication(s)’). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from interested IEC National Committees IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user In order to promote international uniformity. IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. All users should ensure that they have the latest edition of this publication No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or tor costs (including legal tees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61400-1 has been prepared by IEC technical committee 88: Wind energy generation systems.
This fourth edition cancels and replaces the third edition published in 2005 and Amendment 1:2010. This edition constitutes a technical revision
This edition includes the following significant technical changes with respect to the previous edition:
a) general update and clarification of references and requirements;
b) extension of wind turbine classes to allow for tropical cyclones and high turbulence;
c)Weibull distribution of turbulence standard deviation for normal turbulence model (NTM);
d)updated design load cases (DLCs), in particular DLC 2.1 and 2.2;
e) revision of partial safety factor specifications;
f) major revision of Clauses 8, 10 and 11;
g) introduction of cold climate requirements, Clause 14;
h)new Annex B on design load cases for site-specific or special class S wind turbine design or site suitability assessment;
i)new Annex J on prediction of the extreme wind speed of tropical cyclones by using Monte Carlo simulation method;
j)new Annex K on calibration of structural material safety factors and structural design assisted by testing;
k)new Annex L on assessment and effects of icing climate;
l)new Annex M on medium wind turbines.
The text of this International Standard is based on the following documents:
Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 61400 series, published under the general title Wind energy generation systems, can be found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the specific document. At this date, the document will be
reconfirmed,
withdrawn,
replaced by a revised edition, or
amended.
A bilingual version of this publication may be issued at a later date.
IMPORTANT - The 'colour inside' logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer.
国际电工委员会
风能发电系统
第 1 部分：设计要求
前言
国际电工委员会（IEC）是由各国家电工委员会（IEC 国家委员会）组成的全球性标准化组织。IEC 的宗旨是就电气与电子领域标准化相关各项事务开展国际合作。为此，IEC 除编制其他文件外，还发布国际标准、技术规范、技术报告、可公开提供规范（PAS）以及指南（下文统称 “IEC 出版物”）。IEC 出版物的编制工作委托各技术委员会负责；任何对该技术委员会所辖主题感兴趣的 IEC 国家委员会均可参与此项编制工作。与 IEC 建立联络关系的国际组织、政府及非政府机构也会参与编制。IEC 与国际标准化组织（ISO）依据双方商定的条件开展紧密合作。 IEC 就技术事项做出的正式决议或协议，尽可能代表所有相关主题的国际共识；各技术委员会均有全部感兴趣的 IEC 国家委员会派代表参与。 IEC 出版物作为国际推荐文件，由各 IEC 国家委员会采纳执行。尽管 IEC 已尽合理努力确保出版物技术内容准确无误，但 IEC 不对出版物的使用方式或任何使用者的误读承担任何责任。 为推动国际层面规范统一，各 IEC 国家委员会承诺在本国及地区性出版物中最大限度透明采用 IEC 出版物。若本国 / 地区出版物与对应 IEC 出版物存在差异，必须在后者中清晰标注。 IEC 本身不提供符合性认证；独立认证机构开展符合性评定业务，部分场景下可使用 IEC 符合性标识。IEC 不对独立认证机构开展的相关服务承担责任。 本出版物所有使用者应确保自身持有最新版本。 IEC 及其董事、雇员、工作人员、代理人（包括特邀专家、技术委员会成员与 IEC 国家委员会成员），不对因本出版物、其他 IEC 出版物的编制、使用或引用而产生的任何人身伤害、财产损毁，或是各类直接、间接损失、费用（含诉讼费与各项开支）承担任何法律责任。 请注意本文件中引用的规范性参考文献，引用文件是本标准正确应用不可或缺的依据。 提请注意：本 IEC 出版物部分条款可能涉及专利权，IEC 不承担识别任一或全部此类专利权的义务。
本国际标准 IEC 61400-1 由 IEC 第 88 技术委员会（风能发电系统）编制。本第四版替代 2005 年发布的第三版及其 1 号修改单（2010 版），属于技术性修订版本。相较于上一版，本版主要技术修订内容如下：
a）全面更新并厘清参考文献与各项要求；
b）拓展风电机组等级划分，新增适用于台风、高湍流环境的机组类别；
c）正常湍流模型（NTM）采用威布尔分布定义湍流标准差；
d）更新设计载荷工况（DLC），重点修订 DLC 2.1、DLC 2.2；
e）修订分项安全系数相关规定；
f）对第 8、10、11 章进行大幅改版；
g）新增第 14 章，补充寒冷气候环境设计要求；
h）新增附录 B，针对定制化机型、S 类特殊机组设计或场址适配性评估给出设计载荷工况；
i）新增附录 J，采用蒙特卡洛模拟法预测台风极端风速；
j）新增附录 K，明确结构材料安全系数校准方法与试验辅助结构设计规则；
k）新增附录 L，给出寒冷气候环境影响评估方法；
l）新增附录 M，针对中型风电机组提出设计规范。
本国际标准文本编制依托下列文件：
本标准审批投票完整信息可查阅上表所列投票报告。本文件按照 ISO/IEC 导则第 2 部分起草编制。IEC 官网可查阅以《风能发电系统》作为总标题发布的全部 IEC 61400 系列标准清单。该系列后续新标准将统一使用上述总标题；本系列现有标准将在下次改版时同步更新标题。
IEC 技术委员会规定：在 IEC 官网网页商店（http://webstore.iec.ch）对应本条文档的稳定性标注日期前，本文件内容保持不变；到期后本文件将执行以下任一处置：
·复审确认继续有效
·撤销废止
·发布修订版替代
·发布修改单修订
本出版物后续可能发布双语版本。
⚠️ 重要提示：本出版物封面的 “彩印标识” 说明文件内含彩色图示，对准确理解条文内容具备关键作用，建议使用者采用彩色打印机打印本文件。
