标准摘要
[中文适用范围]： 在低压开关设备和控制设备总成的IEC 61439系列标准中，系统和应用细节由指定方进行指定，以便制造商能够生产出满足指定方需求和期望的总成。本部分（技术报告）从指定方的角度，识别了在指定总成时定义的功能和特征。它提供了：解释IEC 61439系列内的总成特征和选项；指导如何选择适当的选项并定义特征以满足特定的应用需求；以及协助指定总成的过程。本文件中对总成接口特征及其符合要求的提及，均假设该总成是根据IEC 61439系列的相关部分设计、制造和验证的。 [外文原描述]： IEC TR 61439-0:2022 standards for low-voltage switchgear and controlgear assemblies, there are system and application details that are specified by the specifier to enable the manufacturer to produce an assembly that meets the needs and expectations of the specifier. IEC/TR 61439-0:2022, identifies from the specifier’s perspective those functions and characteristics that are defined when specifying assemblies. It provides: an explanation of the assembly characteristics and options within the IEC 61439 series; a guidance on how to select the appropriate options and define characteristics so as to meet specific application needs; and an assistance in the specification of assemblies. References within this document to the interface characteristics of an assembly and the requirements with which they will comply assume that the assembly is designed, manufactured, and verified in accordance with the relevant part of the IEC 61439 series. This third edition cancels and replaces the second edition published in 2013. It constitutes a technical revision. This third edition includes the following significant technical changes with respect to the previous edition: alignment with IEC 61439-1:2020; addition of new content in Clause 13 regarding current ratings; addition of a new subclause 12.8.1 detailing the fundamentals of the forms of internal separation; alignment of Annex B with Annex AA of 61439-2:2020; removal of the annexes detailing items subject to agreement between specifier and manufacturer for all product parts as not all of them can always be up to date
英文名称Low-voltage switchgear and controlgear assemblies- Part 0: Guidance to specifying assemblies