prEN IEC 61439-3:2022

SLOVENSKI STANDARD
oSIST prEN IEC 61439-3:2022
01-oktober-2022
Sestavi nizkonapetostnih stikalnih in krmilnih naprav - 3. del: Električni
razdelilniki, s katerimi lahko ravnajo nestrokovnjaki (DBO)
Low-voltage switchgear and controlgear assemblies - Part 3: Distribution boards
intended to be operated by ordinary persons (DBO)
Niederspannungs-Schaltgerätekombinationen - Teil 3: Installationsverteiler für die
Bedienung durch Laien (DBO)
Ensembles d'appareillage à basse tension - Partie 3: Tableaux de répartition destinés à
être utilisés par des personnes ordinaires (DBO)
Ta slovenski standard je istoveten z: prEN IEC 61439-3:2022
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
oSIST prEN IEC 61439-3:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 61439-3:2022

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oSIST prEN IEC 61439-3:2022

121B/159/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61439-3 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-07-15 2022-10-07
SUPERSEDES DOCUMENTS:
121B/139/CD, 121B/158/CC

IEC SC 121B : LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES
SECRETARIAT: SECRETARY:
Germany Mr Jörg Hußmann
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 18,TC 44,TC 64,SC 121A
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

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

PROPOSED STABILITY DATE: 2026

NOTE FROM TC/SC OFFICERS:


Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to
download this electronic file, to make a copy and to print out the content for the sole purpose of preparing National
Committee positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for
any other purpose without permission in writing from IEC.

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oSIST prEN IEC 61439-3:2022
IEC CDV 61439-3 © IEC 2022 2 121B/159/CDV

1 CONTENTS
2 FOREWORD . 4
3 1 Scope . 6
4 2 Normative references . 6
5 3 Terms and definitions . 7
6 3.1 General terms . 7
7 4 Symbols and abbreviations . 8
8 5 Interface characteristics . 8
9 5.1 General . 8
10 5.2.4 Rated impulse withstand voltage (U ) (of the assembly ). 8
imp
11 5.4 Rated diversity factor (RDF) . 8
12 6 Information . 8
13 6.1 Assembly designation marking . 8
14 6.2.2 Instructions for handling, installation, operation and maintenance . 9
15 6.3 Device and/or component identification . 9
16 7 Service conditions . 9
17 7.1.2 Pollution degree .
...