IEC 61439-1:2020與IEC 61439-1:2011主要技術差異解析
邸梅仙1，張廣躍1，高永樂1，韓美麗2
(1 中國質量認證中心，北京 100070；
2 蘇州電器科學研究院股份有限公司，江蘇 蘇州 215104)
摘 要：介紹了低壓成套開關設備和控制設備國際標準 IEC 61439-1:2020 與 IEC 61439-1:2011 的主要技術指標和要求的差異。新標準明確了標準的使用范圍，給出了關于電擊防護的 Ⅰ 類和 Ⅱ 類成套設備的概念，增加了成套設備內電路的組額定電流的介紹，并重新關注這一新特性的溫升驗證，產品性能及部分試驗要求均有所修改。通過對新舊標準差異的介紹，使國內低壓成套設備制造商和用戶對 IEC 61439-1:2020 標準有更全面的認識和理解，為產品的設計、制造、驗證以及出口提供指導幫助。
關鍵詞： 低壓成套開關設備和控制設備；IEC 61439-1:2020 ；IEC 61439-1:2011 ；技術指標
中圖分類號：TM643 文獻標識碼：A 文章編號：1007-3175(2022)12-0069-04
Main Technical Differences Between IEC 61439-1:2020 and IEC 61439-1:2011
DI Mei-xian1, ZHANG Guang-yue1, GAO Yong-le1, HAN Mei-li2
（1 China Quality Certification Center, Beijing 100070, China;
2 Suzhou Electrical Apparatus Science Academy Co., Ltd, Suzhou 215104, China）
Abstract: The paper introduces the differences of main technical indicators and requirements between IEC 61439-1:2020 and IEC 61439-1:2011 which are international standards for low-voltage switchgear and controlgear assemblies. The new standard confirms its range of application, makes concepts of Class I and Class II complete equipment for protection against electrical shock, introduces rating current of the circuit for complete equipment,refocuses on temperature rise verification with new characteristic, and modifies some product performance and test requirements. The introduction of main differences between the new and old version will make domestic manufacturers and users of low-voltage switchgear and controlgear assemblies have more complete understanding of the new standard, and provide guidance of product design, manufacturing, verification and export.
Key words: low-voltage switchgear and controlgear assemblies; IEC 61439-1:2020; IEC 61439-1:2011; technical indicators
參考文獻
[1] International Electrotechnical Commission.Low-voltage switchgear and controlgear assemblies-Part1:General rules：IEC 61439-1:2011[S].Geneva ：Internation Electrotechnical Commission Publication，2011：1-139.
[2] International Electrotechnical Commission.Low-voltage switchgear and controlgear assemblies-Part1:General rules：IEC 61439-1:2020[S].Geneva ：Internation Electrotechnical Commission Publication，2020：1-321.
