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 4: Resistance of earth connection and equipotential bonding (IEC 61557-4:2019)

This part of IEC 61557 specifies the requirements applicable to equipment for measuring the
resistance of earth conductors, protective earth conductors and conductors for equipotential
bonding, including their connections and terminals, with an indication of the measured value
or an indication of the limits.

Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 4: Widerstand von Erdungsleitern, Schutzleitern und Potentialausgleichsleitern (IEC 61557-4:2019)

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 4: Résistance de conducteurs de terre et d'équipotentialité (IEC 61557-4:2019)

IEC 61557-4:2019 est disponible sous forme de IEC 61557-4:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 61557-4:2019 spécifie les exigences applicables aux appareils destinés à mesurer la résistance de conducteurs de terre, de conducteurs de terre de protection et de conducteurs d'équipotentialité, y compris leurs liaisons et bornes, avec une indication de la valeur mesurée ou une indication des limites. L'IEC 61557-4:2019 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) développement des informations concernant la catégorie de mesure à l'Article 4; b) correction de l'équation relative à l'incertitude de fonctionnement; c) développement des exigences de mesure de la tension continue; d) alignement de la structure sur l'ensemble de la série IEC 61557.

Električna varnost v nizkonapetostnih razdelilnih sistemih za izmenične napetosti do 1 kV in enosmerne napetosti do 1,5 kV - Oprema za preskušanje, merjenje ali nadzorovanje zaščitnih ukrepov - 4. del: Upornost ozemljitvenega priključka in povezav za izenačitev potencialov (IEC 61557-4:2019)

Ta del standarda IEC 61557 določa zahteve, ki veljajo za opremo za merjenje upornosti ozemljitvenih vodnikov, zaščitnih ozemljitvenih vodnikov in prevodnikov za izenačitev potencialov, vključno z njihovimi priključki in sponkami, z navedbo izmerjene vrednosti ali navedbo mejnih vrednosti.

General Information

Status
Published
Public Enquiry End Date
29-Apr-2018
Publication Date
01-Feb-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
27-Dec-2021
Due Date
03-Mar-2022
Completion Date
02-Feb-2022

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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN IEC 61557-4:2022
01-marec-2022
Nadomešča:
SIST EN 61557-4:2007

Električna varnost v nizkonapetostnih razdelilnih sistemih za izmenične napetosti

do 1 kV in enosmerne napetosti do 1,5 kV - Oprema za preskušanje, merjenje ali
nadzorovanje zaščitnih ukrepov - 4. del: Upornost ozemljitvenega priključka in
povezav za izenačitev potencialov (IEC 61557-4:2019)

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 4:
Resistance of earth connection and equipotential bonding
(IEC 61557-4:2019)
Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V -
Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 4:

Widerstand von Erdungsleitern, Schutzleitern und Potentialausgleichsleitern (IEC 61557-

4:2019)

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 4: Résistance de conducteurs de terre et d'équipotentialité (IEC 61557

-4:2019)
Ta slovenski standard je istoveten z: EN IEC 61557-4:2021
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
SIST EN IEC 61557-4:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 61557-4:2022
---------------------- Page: 2 ----------------------
SIST EN IEC 61557-4:2022
EUROPEAN STANDARD EN IEC 61557-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2021

ICS 17.220.20; 29.080.01; 29.240.01 Supersedes EN 61557-4:2007 and all of its amendments

and corrigenda (if any)
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 4: Resistance of earth
connection and equipotential bonding
(IEC 61557-4:2019)

Sécurité électrique dans les réseaux de distribution basse Elektrische Sicherheit in Niederspannungsnetzen bis AC 1

tension au plus égale à 1 000 V c.a. et 1 500 V c.c. - 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 4: Widerstand

mesures de protection - Partie 4: Résistance de von Erdungsleitern, Schutzleitern und

conducteurs de terre et d'equipotentialité Potentialausgleichsleitern
(IEC 61557-4:2019) (IEC 61557-4:2019)

This European Standard was approved by CENELEC on 2021-11-10. 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

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 61557-4:2021 E
---------------------- Page: 3 ----------------------
SIST EN IEC 61557-4:2022
EN IEC 61557-4:2021 (E)
European foreword

The text of document 85/686/FDIS, future edition 3 of IEC 61557-4, 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 61557-4:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2022-08-10

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2024-11-10

document have to be withdrawn

This document supersedes EN 61557-4:2007 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 patent rights.

This document has been prepared under a Standardization Request given to CENELEC by the

European Commission and the European Free Trade Association.

Any feedback and questions on this document should be directed to the users’ national committee. A

complete listing of these bodies can be found on the CENELEC website.
Endorsement notice

The text of the International Standard IEC 61557-4:2019 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following note has to be added for the standard indicated:

IEC 61010-1:2010 NOTE Harmonized as EN 61010-1:2010 (not modified)
---------------------- Page: 4 ----------------------
SIST EN IEC 61557-4:2022
EN IEC 61557-4:2021 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments)

applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod),

the relevant EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available

here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61010-031 - Safety requirements for electrical EN 61010-031 -
equipment for measurement, control and
laboratory use - Part 031: Safety
requirements for hand-held probe
assemblies for electrical measurement
and test
IEC 61010-2-030 2017 Safety requirements for electrical EN IEC 61010-2-030 2021
equipment for measurement, control, and
laboratory use - Part 2-030: Particular
requirements for equipment having testing
or measuring circuits
- - + A11 2021

IEC 61557-1 2019 Electrical safety in low voltage distribution EN IEC 61557-1 2021

systems up to 1 000 V AC and 1 500 V
DC - Equipment for testing, measuring or
monitoring of protective measures - Part
1: General requirements
---------------------- Page: 5 ----------------------
SIST EN IEC 61557-4:2022
---------------------- Page: 6 ----------------------
SIST EN IEC 61557-4:2022
IEC 61557-4
Edition 3.0 2019-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
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 4: Resistance of earth connection and equipotential bonding
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 4: Résistance de conducteurs de terre et d'équipotentialité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 29.080.01; 29.240.01 ISBN 978-2-8322-7158-2

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 61557-4:2022
– 2 – IEC 61557-4:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 Requirements .................................................................................................................. 5

4.1 General ................................................................................................................... 5

4.2 Measuring voltage................................................................................................... 6

4.3 Measuring current ................................................................................................... 6

4.4 Measuring with DC .................................................................................................. 6

4.5 Measuring range ..................................................................................................... 6

4.6 External resistance ................................................................................................. 6

4.7 Indication of limits ................................................................................................... 6

4.8 Overvoltage ............................................................................................................ 7

5 Marking and operating instructions .................................................................................. 7

5.1 Marking ................................................................................................................... 7

5.2 Operating instructions ............................................................................................. 7

6 Tests ............................................................................................................................... 7

6.1 General ................................................................................................................... 7

6.2 Operating uncertainty .............................................................................................. 7

6.3 Open-circuit voltage ................................................................................................ 8

6.4 Measuring current ................................................................................................... 8

6.5 Indication of limits ................................................................................................... 8

6.6 Overvoltage ............................................................................................................ 8

6.7 Battery life in battery operated instruments ............................................................. 9

Bibliography .......................................................................................................................... 10

Table 1 – Calculation of operating uncertainty ........................................................................ 8

---------------------- Page: 8 ----------------------
SIST EN IEC 61557-4:2022
IEC 61557-4:2019 © IEC 2019 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
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 4: Resistance of earth connection
and equipotential bonding
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus
...

SLOVENSKI STANDARD
oSIST prEN 61557-4:2018
01-april-2018

(OHNWULþQDYDUQRVWYQL]NRQDSHWRVWQLKUD]GHOLOQLKVLVWHPLKL]PHQLþQHQDSHWRVWLGR

N9LQHQRVPHUQHQDSHWRVWLGRN92SUHPD]DSUHVNXãDQMHPHUMHQMHDOL
QDG]RURYDQMH]DãþLWQLKXNUHSRYGHO8SRUQRVWR]HPOMLWYHQHJDSULNOMXþNDLQ
L]HQDþLWHYSRWHQFLDORY

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 4:
Resistance of earth connection and equipotential bonding
Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V -
Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 4:
Widerstand von Erdungsleitern, Schutzleitern und Potentialausgleichsleitern

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 4: Résistance de conducteurs de terre et d'équipotentialité
Ta slovenski standard je istoveten z: prEN 61557-4:2018
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 61557-4:2018 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 61557-4:2018
---------------------- Page: 2 ----------------------
oSIST prEN 61557-4:2018
85/632/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61557-4 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2018-02-09 2018-05-04
SUPERSEDES DOCUMENTS:
85/610/CD,85/624/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 26,TC 44,TC 62,TC 64,TC 66,TC 108
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 4: Resistance of earth connection and

equipotential bonding
PROPOSED STABILITY DATE: 2025
NOTE FROM TC/SC OFFICERS:

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 61557-4:2018
- 2 - 85/632/CDV
1 CONTENTS

3 FOREWORD ...................................................................................................................... - 3 -

4 1 Scope ......................................................................................................................... - 5 -

5 2 Normative references .................................................................................................. - 5 -

6 3 Terms and definitions .................................................................................................. - 5 -

7 4 Requirements ............................................................................................................. - 5 -

8 4.1 General .............................................................................................................. - 5 -

9 4.2 Measuring voltage .............................................................................................. - 6 -

10 4.3 Measuring current .............................................................................................. - 6 -

11 4.4 Measuring with DC ............................................................................................. - 6 -

12 4.5 Measuring range ................................................................................................ - 6 -

13 4.6 External resistance ............................................................................................. - 6 -

14 4.7 Indication of limits .............................................................................................. - 6 -

15 4.8 Overvoltage ........................................................................................................ - 6 -

16 5 Marking and operating instructions .............................................................................. - 6 -

17 5.1 Marking .............................................................................................................. - 6 -

18 5.2 Operating instructions ........................................................................................ - 7 -

19 6 Tests .......................................................................................................................... - 7 -

20 6.1 General .............................................................................................................. - 7 -

21 6.2 Operating uncertainty ......................................................................................... - 7 -

22 6.3 Open-circuit voltage ........................................................................................... - 8 -

23 6.4 Measuring current .............................................................................................. - 8 -

24 6.5 Indication of limits .............................................................................................. - 8 -

25 6.6 Overvoltage ........................................................................................................ - 8 -

26 6.7 Battery life in battery operated instruments ........................................................ - 8 -

---------------------- Page: 4 ----------------------
oSIST prEN 61557-4:2018
- 3 - 85/632/CDV
29 INTERNATIONAL ELECTROTECHNICAL COMMISSION
30 ____________
32 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS
33 UP TO 1 000 V AC AND 1 500 V DC –
34 EQUIPMENT FOR TESTING, MEASURING OR MONITORING
35 OF PROTECTIVE MEASURES –
37 Part 4: Resistance of earth connection
38 and equipotential bonding
40 FOREWORD

41 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all

42 national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-

43 operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to

44 other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available

45 Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical

46 committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work.

47 International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation.

48 IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions

49 determined by agreement between the two organizations.

50 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

51 consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC

52 National Committees.

53 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees

54 in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate,

55 IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user.

56 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently

57 to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication

58 and the corresponding national or regional publication shall be clearly indicated in the latter.

59 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment

60 services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by

61 independent certification bodies.

62 6) All users should ensure that they have the latest edition of this publication.

63 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of

64 its technical committees and IEC National Committees for any personal injury, property damage or other damage of any

65 nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the

66 publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.

67 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

68 indispensable for the correct application of this publication.

69 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights.

70 IEC shall not be held responsible for identifying any or all such patent rights.

71 International Standard IEC 61557-4 has been prepared by IEC technical committee 85: Measuring

72 equipment for electrical and electromagnetic quantities.

73 This edition includes the following significant technical changes with respect to the previous edition:

74 a) The measurement category is complemented in Clause 4
75 b) The equation for the operating uncertainty is corrected
76 c) The requirements for measuring with DC are complemented
77 d) Alignment of the structure to the whole series IEC61557
---------------------- Page: 5 ----------------------
oSIST prEN 61557-4:2018
- 4 - 85/632/CDV
...

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