BS EN 61558-2-7:1998 Incorporating Amendments Nos. 1 and 2 and Corrigendum No. 1Safety of power transformers, power supply units and similar — Part 2.7: Particular requirements for transformers for toysNational forewordThis British Standard is the English language version of EN 61558-2-7:1997,including amendment A11:2002. It was derived by CENELEC fromIEC 61558-2-7:1997.The BS EN 61558 series of standards will ultimately supersede BS 3535-1,dual numbered as BS EN 60742:1996, and BS 3535-2. Until that time arrives,these latter standards are only to be used for equipment not covered by theBS EN 61558 series.The CENELEC common modifications have been implemented at theappropriate places in the text.The start and finish of each common modificationis indicated in the text by tags . Where a common modification has beenintroduced by amendment, the tags carry the number of the amendment. Forexample, the common modifications introduced by CENELEC amendment A11are indicated by ‚.From 1 January 1997, all IEC publications have the number 60000 added tothe old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1.For a period of time during the change over from one numbering system to theother, publications may contain identifiers from both systems.
猜您喜欢
推荐内容
开源项目推荐 更多
热门活动
热门器件
用户搜过
随便看看
热门下载
热门文章
热门标签
评论