IEC 61439-1与GB 7251.1/IEC 60439-1主要技术差异

Main Technical Differences Between Standard IEC 61439-1 and GB 7251.1/IEC 60439-1

介绍了IEC 61439-1:2009与IEC 60439-1:1999/GB 7251.1-2005低压成套开关设备和控制设备标准的主要技术指标和要求的差异,供广大已熟悉国家标准GB 7251.1-2005的人员尽快了解IEC 61439-1:2009标准的结构及变化。

Introduction was made to the differences of main technical index and requirements between the standard IEC 61439-1：2009 and IEC 60439-1：1999/GB 7251.1-2005,low-voltage switchgear and controlgear assemblies to make the persons who were familiar with the standard,GB 7251.1-2005 understand the structure and changes of the standard,IEC 61439-1：2009 as soon as posible.