Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 3: Loop impedance

IEC 61557-3:2019 is available as IEC 61557-3:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-3:2019 specifies the requirements applicable to equipment for measuring the loop impedance between a line conductor and protective conductor; between a line conductor and neutral; or between two line conductors by using the voltage drop when the circuit under test is loaded. IEC 61557-3:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of equirements as regards the measurement category; b) addition of new requirements for operating instructions; c) alignment of the structure with that of the whole IEC 61557 series.

Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 3: Schleifenwiderstand

Sécurité électrique dans les réseaux de distribution basse tension au plus égale à 1 000 V c.a. et 1 500 V c.c. - Dispositifs de contrôle, de mesure ou de surveillance de mesures de protection - Partie 3: Impédance de boucle

IEC 61557-3:2019 est disponible sous forme de IEC 61557-3:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 61557-3:2019 spécifie les exigences applicables aux appareils destinés à mesurer l'impédance de boucle entre un conducteur de ligne et le conducteur de protection, entre un conducteur de ligne et le conducteur neutre, ou entre deux conducteurs de ligne en utilisant la chute de tension lorsque le circuit en essai est chargé. L'IEC 61557-3:2019 annule et remplace la deuxième édition parue en 2007. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) ajout d'une exigence relative à la catégorie de mesure; b) ajout de nouvelles exigences relatives aux instructions de fonctionnement; c) alignement de la structure sur l'ensemble de la série IEC 61557.

Električna varnost v nizkonapetostnih razdelilnih sistemih za izmenične napetosti do 1 000 V in enosmerne napetosti do 1 500 V - Oprema za preskušanje, merjenje ali nadzorovanje zaščitnih ukrepov - 3. del: Impedanca zanke (IEC 61557-3:2019)

Ta del standarda IEC 61557 določa zahteve, ki se uporabljajo za opremo za merjenje impedance zanke med linijskim in zaščitnim vodnikom, med linijskim in nevtralnim vodnikom ali med dvema linijskima vodnikoma z uporabo padca napetosti ob obremenitvi preskušanega tokokroga.

General Information

Status
Published
Publication Date
19-May-2022
Current Stage
6060 - Document made available - Publishing
Start Date
20-May-2022
Completion Date
20-May-2022

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 61557-3:2022
01-oktober-2022
Nadomešča:
SIST EN 61557-3:2007
Električna varnost v nizkonapetostnih razdelilnih sistemih za izmenične napetosti
do 1 000 V in enosmerne napetosti do 1 500 V - Oprema za preskušanje, merjenje
ali nadzorovanje zaščitnih ukrepov - 3. del: Impedanca zanke (IEC 61557-3:2019)
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC -
Equipment for testing, measuring or monitoring of protective measures - Part 3: Loop
impedance (IEC 61557-3:2019)
Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V -
Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 3:
Schleifenwiderstand (IEC 61557-3:2019)
Sécurité électrique dans les réseaux de distribution basse tension de 1 000 V c.a. et 1
500 V c.c. - Dispositifs de contrôle, de mesure ou de surveillance de mesures de
protection - Partie 3: Impédance de boucle (IEC 61557-3:2019)
Ta slovenski standard je istoveten z: EN IEC 61557-3:2022
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
29.080.01 Električna izolacija na Electrical insulation in
splošno general
29.240.01 Omrežja za prenos in Power transmission and
distribucijo električne energije distribution networks in
na splošno general
SIST EN IEC 61557-3:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 61557-3:2022

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SIST EN IEC 61557-3:2022


EUROPEAN STANDARD EN IEC 61557-3

NORME EUROPÉENNE

EUROPÄISCHE NORM May 2022
ICS 17.220.20; 29.080.01; 29.240.01 Supersedes EN 61557-3:2007
English Version
Electrical safety in low voltage distribution systems up to 1 000 V
AC and 1 500 V DC - Equipment for testing, measuring or
monitoring of protective measures - Part 3: Loop impedance
(IEC 61557-3:2019)
Sécurité électrique dans les réseaux de distribution basse Elektrische Sicherheit in Niederspannungsnetzen bis AC
tension au plus égale à 1 000 V c.a. et 1 500 V c.c. - 1 000 V und DC 1 500 V - Geräte zum Prüfen, Messen oder
Dispositifs de contrôle, de mesure ou de surveillance de Überwachen von Schutzmaßnahmen - Teil 3:
mesures de protection - Partie 3: Impédance de boucle Schleifenwiderstand
(IEC 61557-3:2019) (IEC 61557-3:2019)
This European Standard was approved by CENELEC on 2022-04-06. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 61557-3:2022 E

---------------------- Page: 3 ----------------------
SIST EN IEC 61557-3:2022
EN IEC 61557-3:2022 (E)
European foreword
The text of document 85/687/FDIS, future edition 3 of IEC 61557-3, prepared by IEC/TC 85
"Measuring equipment for electrical and electromagnetic quantities" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 61557-3:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-01-06
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-04-06
document have to be withdrawn
This document supersedes EN 61557-3:2007 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such
...

SLOVENSKI STANDARD
oSIST prEN 61557-3:2018
01-april-2018
(OHNWULþQDYDUQRVWYQL]NRQDSHWRVWQLKUD]GHOLOQLKVLVWHPLK]DL]PHQLþQHQDSHWRVWL
GRN9LQHQRVPHUQHQDSHWRVWLGRN92SUHPD]DSUHVNXãDQMHPHUMHQMHDOL
QDG]RURYDQMH]DãþLWQLKXNUHSRYGHO,PSHGDQFD]DQNH
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. -
Equipment for testing, measuring or monitoring of protective measures - Part 3: Loop
impedance
Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V -
Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 3:
Schleifenwiderstand
Sécurité électrique dans les réseaux de distribution basse tension de 1 000 V c.a. et 1
500 V c.c. - Dispositifs de contrôle, de mesure ou de surveillance de mesures de
protection - Partie 3: Impédance de boucle
Ta slovenski standard je istoveten z: prEN 61557-3:2018
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
29.080.01 (OHNWULþQDL]RODFLMDQD Electrical insulation in
VSORãQR general
29.240.01 2PUHåMD]DSUHQRVLQ Power transmission and
GLVWULEXFLMRHOHNWULþQHHQHUJLMH distribution networks in
QDVSORãQR general
oSIST prEN 61557-3:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 61557-3:2018

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oSIST prEN 61557-3:2018
85/631/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61557-3 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2018-02-09 2018-05-04
SUPERSEDES DOCUMENTS:
85/609/CD,85/623/CC

IEC TC 85 : MEASURING EQUIPMENT FOR ELECTRICAL AND ELECTROMAGNETIC QUANTITIES
SECRETARIAT: SECRETARY:
China Mr Bo Chen
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 44,TC 64,TC 66
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:
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for
testing, measuring or monitoring of protective measures - Part 3: Loop impedance

PROPOSED STABILITY DATE: 2025

NOTE FROM TC/SC OFFICERS:


1
Copyright © 2017 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.

---------------------- Page: 3 ----------------------
oSIST prEN 61557-3:2018
- 2 - 85/631/CDV
2 CONTENTS
3
4 FOREWORD . - 3 -
5 1 Scope . - 5 -
6 2 Normative references . - 5 -
7 3 Terms and definitions . - 5 -
8 4 Requirements . - 6 -
9 4.1 General . - 6 -
10 4.2 Measurement of loop impedance . - 6 -
11 4.3 External resistance . - 6 -
12 4.4 Fault voltage exceeding U . - 6 -
L
13 4.5 Overvoltage . - 6 -
14 5 Marking and operating instructions . - 6 -
15 5.1 Marking
...

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