IEC 61557-14:2023

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 14: Equipment for testing the safety of electrical equipment of machinery

IEC 61557-14:2023 defines special requirements for test and measurement equipment used to determine the electrical safety of electrical equipment of machinery in accordance with IEC 60204-1.
This International Standard is to be used in conjunction with IEC 61557-1:2019.
IEC 61557-14:2023 cancels and replaces the first edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) clarifying the introduction;
b) replaced "dielectric strength" by "voltage test";
c) requirement for maximum output current has been added in 4.2.6.1;
d) tripping time at electrical switching activated by two-hand operation has been added in 4.2.6.1;
e) additional time limiting capability for the protection against electric shock for test persons and bystanders in 4.2.6.2;
f) updated references for safety testing;
g) alignment of the structure with that of the whole IEC 61557 series.

Sécurité électrique dans les réseaux de distribution basse tension jusqu’à 1 000 V en courant alternatif et 1 500 V en courant continu – Dispositifs de contrôle, de mesure ou de surveillance de mesures de protection – Partie 14: Dispositifs de contrôle de la sécurité des appareils électriques sur machines

L'IEC 61557-14:2023 définit les exigences particulières applicables aux dispositifs de contrôle et de mesure destinés à déterminer la sécurité électrique des appareils électriques sur machines conformément à l’IEC 60204-1.
L'IEC 61557-14:2023 annule et remplace la première édition parue en 2013. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) clarification de l’introduction;
b) remplacement de "rigidité diélectrique" par "essai de tension";
c) ajout de l’exigence de courant de sortie maximal en 4.2.6.1;
d) ajout du temps de déclenchement lors de la commutation électrique activée par une opération à deux mains en 4.2.6.1;
e) ajout d’une capacité de limitation de temps supplémentaire pour la protection contre les chocs électriques pour les personnes soumises à essai et les personnes présentes en 4.2.6.2;
f) mise à jour des références pour les essais de sécurité;
g) alignement de la structure sur celle de l’ensemble de la série IEC 61557.

General Information

• Status: Published
• Publication Date: 24-Aug-2023
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 29.080.01 - Electrical insulation in general
• ICS: 29.240.01 - Power transmission and distribution networks in general
• Technical Committee: TC 85 - Measuring equipment for electrical and electromagnetic quantities
• Drafting Committee: WG 8 - TC 85/WG 8
• Current Stage: PPUB - Publication issued
• Start Date: 18-Aug-2023
• Completion Date: 25-Aug-2023

Relations

• Revises: IEC 61557-14:2013 - 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 14: Equipment for testing the safety of electrical equipment for machinery
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61557-14 ®
Edition 2.0 2023-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
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 14: Equipment for testing the safety of electrical equipment of machinery

Sécurité électrique dans les réseaux de distribution basse tension au plus égale
à 1 000 V en courant alternatif et 1 500 V en courant continu – Dispositifs de
contrôle, de mesure ou de surveillance de mesures de protection –
Partie 14: Dispositifs de contrôle de la sécurité des appareils électriques sur
machines
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IEC 61557-14 ®
Edition 2.0 2023-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
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 14: Equipment for testing the safety of electrical equipment of machinery

Sécurité électrique dans les réseaux de distribution basse tension au plus égale

à 1 000 V en courant alternatif et 1 500 V en courant continu – Dispositifs de

contrôle, de mesure ou de surveillance de mesures de protection –

Partie 14: Dispositifs de contrôle de la sécurité des appareils électriques sur

machines
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20, 29.080.01, 29.240.01 ISBN 978-2-8322-7250-3

– 2 – IEC 61557-14:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Requirements . 7
4.1 General requirements . 7
4.2 Measuring functions . 7
4.2.1 Required measuring functions . 7
4.2.2 Measurement of resistance of protective bonding . 8
4.2.3 Measurement of fault loop impedance. 8
4.2.4 Measurement of insulation resistance . 8
4.2.5 Testing of the effectiveness of protective measures with RCD . 8
4.2.6 Voltage tests . 8
4.2.7 Measurement of residual voltage . 9
4.2.8 Measurement of leakage current . 9
4.3 Construction requirements for testing equipment . 9
4.3.1 Overload capability . 9
4.3.2 Sockets for service purposes . 10
4.3.3 Degree of protection . 10
4.3.4 Overvoltage and measurement categories . 10
4.4 Accessories . 10
5 Markings and operating instructions . 10
5.1 Markings . 10
5.2 Operating instructions . 11
6 Tests . 11
6.1 General . 11
6.2 Operating uncertainty . 11
6.3 Tests of measuring equipment according to measuring functions . 12
6.4 Test of construction requirements of test equipment . 12
Bibliography . 16

Table 1 – Test voltages . 8
Table 2 – Calculation of operating uncertainty . 13
Table 3 – Compliance tests of measuring equipment according to measuring function . 14
Table 4 – Test of construction requirements of test equipment . 15

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 14: Equipment for testing the safety of electrical
equipment of machinery
FOREWORD
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IEC 61557-14 has been prepared by IEC technical committee 85: Measuring equipment for
electrical and electromagnetic quantities. It is an International Standard.
This second edition cancels and replaces the first edition published in 2013. This edition
constitutes a technical revision.
This edition includes the following significant tech
...