IEC 61439-3:2024 低压开关设备和控制设备组件第3部分:普通人操作的配电盘

标准编号：IEC 61439-3:2024

中文名称：低压开关设备和控制设备组件第3部分:普通人操作的配电盘

英文名称：Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO)

发布日期：2024-03-26

标准范围

IEC 61439-3:20 24对拟由普通人操作的配电板（在本文件中缩写为DBO，见3.1.101）的具体要求定义如下:-打算由普通人操作的组件(例如开关操作和更换保险丝)，例如在家庭(家用)应用中；-包含具有旨在由普通人操作的保护装置的输出电路的组件，符合例如IEC 60898-1、IEC 61008系列、IEC 61009系列、IEC 62606、IEC 62423和IEC 60269-3；-用于对地标称电压不超过300 V AC的应用的组件（参见IEC 61439-1:20 20的表G.1）；笔记？正在考虑直流应用的电压限制。-输出电路的额定电流(Inc)不超过125A且额定电流(InA)不超过250A的组件；-用于电能的产生、传输、分配和转换以及用于控制消耗电能的设备和用于相关数据处理的组件；-封闭的固定组件；-室内或室外使用的组件。第二版取消并取代了2012年出版的第一版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更:a)与IEC 61439-1:20 20的结构一致；b)在保护和控制装置类型的更多示例的范围内包括；c)A型和B型DBO的缺失；d)添加与产消者电气装置(PEI)中使用的DBO相关的新附件BB；e)添加与DBO的额定电流相关的新附件CC，该附加电源与连接到DBO的另一电源（例如PV）并联/同时。

IEC 61439-3:2024 defines the specific requirements for distribution boards intended to be operated by ordinary persons (abbreviated DBO throughout this document, see 3.1.101) as follows:
- assemblies intended to be operated by ordinary persons (e.g. switching operations and replacing fuse-links), e.g. in domestic (household) applications;
- assemblies containing outgoing circuits with protective devices intended to be operated by ordinary persons, complying e.g. with IEC 60898-1, the IEC 61008 series, the IEC 61009 series, IEC 62606, IEC 62423 and IEC 60269-3;
- assemblies for applications where the nominal voltage to earth does not exceed 300 V AC (see Table G.1 of IEC 61439-1:2020);
NOTE？The voltage limits for DC applications are under consideration.
- assemblies with a rated current (Inc) of the outgoing circuits not exceeding 125 A and a rated current (InA) not exceeding 250 A;
- assemblies intended for use in connection with the generation, transmission, distribution and conversion of electrical energy, and for the control of equipment consuming electrical energy and for associated data processing;
- enclosed, stationary assemblies;
- assemblies for indoor or outdoor use.
This second edition cancels and replaces the first edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with the structure of IEC 61439-1:2020;
b) inclusion in the scope of more examples of the type of protection and control devices;
c) deletion of type A and Type B DBOs;
d) addition of a new Annex BB related to DBOs used in a prosumer’s electrical installation (PEI);
e) addition of a new Annex CC related to rated current of a DBO with additional source of supply in parallel/simultaneously with another source that is connected to the DBO e.g. PV.

标准预览图