標準號：IEC 60050-445 Edition 2.0-2010
中文標準名稱：國際電工詞匯.第445部分:時間繼電器
英文標準名稱：International Electrotechnical Vocabulary. Part 445: Time relays
標準類型：K04
發布日期：2010/10/1 12:00:00
實施日期：2010/10/1 12:00:00
中國標準分類號：K04
國際標準分類號：01.040.29;29.120.70
引用標準：IEC Guide 108
適用范圍：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relays (IEC 60050-447) is also under preparation.When all these three parts are published, IEC 60050-446 shall be withdrawn.This standard is intended to define the most common time relay functions, and not all possiblecombinations.