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IEC 61439-3 Ed. 2.0 CMV:2024 (en)
低電圧開閉装置及び制御装置アセンブリ-第3部:一般人が使用する用に意図された分電盤
Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards intended to be operated by ordinary persons (DBO)

発行年月日: 2024-03-26
状態: 有効
邦訳版: 無

規格概要
IEC 61439-3:2024 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 61439-3:2024 edition 2.0 and the previous IEC 61439-3:2012 edition 1.0. Furthermore, comments from IEC TC SC 121 experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content.

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 examp
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TC TC 121/SC 121B
ICS 29.130.20
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Commented version(CMV版)の説明。邦訳版はCMV版の原文及び正式規格(最新版)の英和対訳版を収録しています。CMV版の対訳は含みません。ご注意下さい。
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