IEC 60050-445 Edition 2.0-2010 国际电工词汇.第445部分:时间继电器

标准号：IEC 60050-445 Edition 2.0-2010
中文标准名称：国际电工词汇.第445部分:时间继电器
英文标准名称：International Electrotechnical Vocabulary. Part 445: Time relays
标准类型：K04
发布日期：2010/10/1 12:00:00
实施日期：2010/10/1 12:00:00
中国标准分类号：K04
国际标准分类号：01.040.29;29.120.70
引用标准：IEC Guide 108
适用范围：This part of IEC 60050 defines terms related to specified-time relays.In the past, IEC 60050-446 (Part 446 of the IEV) listed the terminology for all types of electricalrelays. In order to improve the precision of terms and definitions as well as the general visibilityof relay terminology, it had been decided to split that part of the IEV into three separate partsoptimised for the specific relay types covered.Therefore, this part of IEC 60050 gives terms and definitions for (specified) time relayssuperseding the terminology of IEC 60050-446 for such relays.The terminology for elementary relays (non-specified time all-or-nothing relays) is contained inIEC 60050-444. A new part for measuring relays (IEC 60050-447) is also under preparation.When all these three parts are published, IEC 60050-446 shall be withdrawn.This standard is intended to define the most common time relay functions, and not all possiblecombinations.