kSISTF prEN 61557-6:2019

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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems

IEC 61557-6:2019 is available as IEC 61557-6:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61557-6:2019 specifies the requirements applicable to measuring equipment for testing the effectiveness of protective measures of residual current devices (RCD) installed in TT, TN and IT systems. It is not the purpose of this document to verify the RCD according to their product standards. IEC 61557-6:2019 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 requirements for testing a new type of RCD; b) addition of requirements for type B RCDs (former Annex B); c) addition of new Annex B on recommended tripping times; d) 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 6: Wirksamkeit von Fehlerstrom-Schutzeinrichtungen (RCD) in TT-, TN- und IT-Systemen

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 6: Efficacité des dispositifs à courant résiduel (DCR) dans les réseaux TT, TN et IT

IEC 61557-6:2019 est disponible sous forme de IEC 61557-6:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 61557-6:2019 spécifie les exigences applicables aux appareils de mesure destinés à soumettre à essai l'efficacité des mesures de protection des dispositifs à courant différentiel résiduel (DDR) installés dans les réseaux TT, TN et IT. La présente norme n'a pas pour objet de vérifier la conformité des DDR aux normes de produits associées. L'IEC 61557-6:2019 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'exigences pour les essais d'un nouveau type de DDR; b) ajout des exigences pour les DDR de type B (ancienne Annexe B); c) ajout de l'Annexe B relative aux temps de déclenchement recommandés; 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 - 6. del: Učinkovitost naprav na preostali (residualni) tok (RCD) v sistemih TT, NT in IT

General Information

• Status: Not Published
• Public Enquiry End Date: 29-Apr-2018
• ICS: 17.200.20 - Temperature-measuring instruments
• ICS: 29.080.01 - Electrical insulation in general
• ICS: 29.240.01 - Power transmission and distribution networks in general
• Technical Committee: MOV - Measuring equipment for electromagnetic quantities
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 17-May-2019
• Due Date: 05-Jul-2019
• Completion Date: 10-Jun-2019
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Ref Project: FprEN IEC 61557-6:2019 - 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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems

RELATIONS

• Revised: SIST EN 61557-6:2008 - 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 6: Effectiveness of residual current devices (RCD) in TT, TN and IT systems
• Effective Date: 25-Jul-2017

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 61557-6:2018
01-april-2018

(OHNWULþQDYDUQRVWYQL]NRQDSHWRVWQLKUD]GHOLOQLKVLVWHPLK]DL]PHQLþQHQDSHWRVWL

GRN9LQHQRVPHUQHQDSHWRVWLGRN92SUHPD]DSUHVNXãDQMHPHUMHQMHDOL
QDG]RURYDQMH]DãþLWQLKXNUHSRYGHO8þLQNRYLWRVWQDSUDYQDSUHRVWDOL
UHVLGXDOQLWRNYVLVWHPLK7717LQ,7

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 6:
Effectiveness of residual current devices (RCD) in TT, TN and IT systems
Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V -
Geräte zum Prüfen, Messen oder Überwachen von Schutzmaßnahmen - Teil 6:

Wirksamkeit von Fehlerstrom-Schutzeinrichtungen (RCD) in TT-, TN- und IT-Systemen

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 6: Efficacité des dispositifs à courant résiduel (DCR) dans les réseaux

TT, TN et IT
Ta slovenski standard je istoveten z: prEN 61557-6:2018
ICS:
17.200.20 Instrumenti za merjenje Temperature-measuring
temperature instruments
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 61557-6:2018 en,fr,de

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

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oSIST prEN 61557-6:2018
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oSIST prEN 61557-6:2018
85/634/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61557-6 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2018-02-09 2018-05-04
SUPERSEDES DOCUMENTS:
85/612A/CD,85/626/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 23,TC 44,TC 64
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 6: Effectiveness of residual current

devices (RCD) in TT, TN and IT systems
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.
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oSIST prEN 61557-6:2018
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1 CONTENTS

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

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

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

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

7 4 Requirements ............................................................................................................. - 6 -

8 4.1 General .............................................................................................................. - 6 -

9 4.2 Functions ........................................................................................................... - 6 -

10 4.2.1 Measurement of trip current ........................................................................ - 6 -

11 4.2.2 Non-tripping functions ................................................................................. - 7 -

12 4.2.3 Fault voltage indication ............................................................................... - 7 -

13 4.2.4 Measurement of trip time ............................................................................ - 8 -

14 4.3 Measurement with indicators .............................................................................. - 8 -

15 4.4 Test with rated residual operating current ........................................................... - 8 -

16 4.5 Fault voltages exceeding U .............................................................................. - 8 -

17 4.6 Overvoltage ........................................................................................................ - 8 -

18 5 Marking and operating instructions .............................................................................. - 9 -

19 5.1 Marking .............................................................................................................. - 9 -

20 5.2 Explicit indication of the waveform of the testing current .................................... - 9 -

21 5.3 Operating instructions ........................................................................................ - 9 -

22 6 Tests .......................................................................................................................... - 9 -

23 6.1 General .............................................................................................................. - 9 -

24 6.2 Operating uncertainty ....................................................................................... - 10 -

25 6.3 Fault voltage .................................................................................................... - 11 -

26 6.4 Testing the connection to voltages higher than nominal voltage ....................... - 11 -

27 6.5 Overvoltage ...................................................................................................... - 11 -

28 Annex A (informative) Applicable tripping tests (time and current) for different types of RCDs -

29 12 -

30 Bibliography ..................................................................................................................... - 13 -

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33 INTERNATIONAL ELECTROTECHNICAL COMMISSION
34 ____________
36 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO
37 1 000 V AC AND 1 500 V DC – EQUIPMENT FOR TESTING, MEASURING, OR
38 MONITORING OF PROTECTIVE MEASURES –

40 Part 6: Effectiveness of residual current operated protective devices (RCD) in TT,

41 TN and IT systems
43 FOREWORD

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

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

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

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

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

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

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

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

52 determined by agreement between the two organizations.

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

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

55 National Committees.

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

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

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

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

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

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

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

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

64 independent certification bodies.

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

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

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

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

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

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

71 indispensable for the correct application of this publication.

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

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

74 International Standard IEC 61557-6 has been prepared by IEC technical committee TC85: Measuring

75 equipment for electrical and electromagnetic quantities.

76 This third edition cancels and replaces the second edition published in 2007. This edition constitutes a

77 technical revision.

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

79 a) Requirements for testing new type of RCDs
80 b) Requirements for RCD type B (former Annex A)
81 c) New Annex B on recommended tripping times
82 d) Alignment of the structure to the whole series IEC61557
83 :
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84 The text of this standard is based on the following documents:
FDIS Report on voting
XX/XX/FDIS XX/XX/RVD

86 Full information on the voting for the approval of this standard can be found in the report on voting

87 indicated in the above table.

88 This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

89 This part of IEC 61557 shall be used in conjunction with Part 1.

90 A list of all parts in the IEC 61557 series, published under the general title Electrical safety in low

91 voltage distribution systems up to 1 000 V AC and 1 500 V DC – Equipment for testing, measuring or

92 monitoring of protective measure,’ can be found on the IEC website.

93 The committee has decided that the contents of this publication will remain unchanged until the

94 stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the

95 specific publication. At this date, the publication will be
96 • reconfirmed,
97 • withdrawn,
98 • replaced by a revised edition, or
99 • amended.
100

101 The National Committees are requested to note that for this publication the stability date is 2025.

102 THIS TEXT IS INCLUDED FOR THE INFORMATION OF THE NATIONAL COMMITTEES AND WILL BE DELETED AT THE

103 PUBLICATION STAGE.
104
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105 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION
106 SYSTEMS UP TO 1000 V AC AND 1500 V DC –
107 EQUIPMENT FOR TESTING, MEASURING OR MONITORING
108 OF PROTECTIVE MEASURES –
109
110 Part 6: Effectiveness of residual current operated protective devices
111 (RCD) in TT, TN and IT systems
112
113 1 Scope

114 This part of IEC 61557 specifies the requirements for measuring equipment applied to the testing of

115 the effectiveness of protective measures of residual current operated protective devices (RCD)

116 installed in TT, TN and IT systems.

117 It is not the purpose of this standard to verify the RCDs according to their product standards.

118 2 Normative references

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

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

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

122 IEC 61010-1:2010, AMD1:2016, Safety requirements for electrical equipment for measurement,

123 control, and laboratory use – Part 1: General requirements

124 IEC 61010-2-030:2017, Safety requirements for electrical equipment for measurement, control, and

125 laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits

126 3 Terms and definitions

127 For the purposes of this document, the terms and definitions given in IEC 61557-1 and the following

128 terms and definitions apply.

129 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

130 – IEC Electropedia: available at http://www.electropedia.org/
131 – ISO Online browsing platform: available at http://www.iso.org/obp
132 3.1
133 earth fault current
134 current flowing to earth due to an insulation fault
135 [SOURCE: IEV 442-01-23]
136 3.2
137 residual current
138 I

139 r.m.s. value of the vector sum of the currents flowing through the main circuit of the residual current

140 device
141 [SOURCE: IEV 442-05-19]
142 3.3
143 rated residual operating current
144 I
145 fault current for which the residual current protective device is designed
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146 3.4
147 residual operating current
148 I

149 value of residual current which causes the residual current device to operate under specified

150 conditions
151 [SOURCE: IEV 442-05-20]
152 3.5
153 leakage current

154 electric current in an unwanted conductive path to earth under normal operating conditions

155 [SOURCE: IEV 195-05-15, modified: ‘to earth’ is added]
156 3.6
157 test resistance
158 R
159 resistance by means of which a fault current for test purposes is produced
160 3.7
161 resistance to earth
162 resistance to ground (US)
163 real part of the impedance to earth
164 [SOURCE: IEV 195-01-18]
165
166 4 Requirements
167 4.1 General

168 In addition to the requirements of Clause 4 of IEC 61557-1, the requirements of Clause 4 shall apply.

169 Test leads and test prob
...