IEC 61557-14:2013
(Main)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
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
IEC 61557-14:2013 defines special requirements for test and measurement equipment used to determine the electrical safety of electrical equipment of machinery according to IEC 60204-1. IEC 61010 and the existing parts of series IEC 61557 do not cover all safety aspects of testing electrical equipment of machinery. IEC 61557-14 provides additional protection against electric shock for the testing person and bystanders during high-voltage-tests and in case of unintended use of the test equipment. It defines performance requirements for each measuring and testing function to ensure comparable results.
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 14: Dispositifs de contrôle de la sécurité des appareils électriques sur machines
La CEI 61557-14:2013 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 la CEI 60204-1. La CEI 61010 et les parties existantes de la série CEI 61557 ne couvrent pas tous les aspects de sécurité liés aux essais des appareils électriques sur machines. La CEI 61557-14 fournit des informations supplémentaires de protection contre les chocs électriques destinées à la personne effectuant les essais ou à toute personne présente, au cours d'essais à haute tension et dans le cas d'une mauvaise utilisation du dispositif d'essai. Elle définit les exigences de performances pour chaque fonction de mesure et d'essai afin de garantir l'obtention de résultats comparables.
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IEC 61557-14 ®
Edition 1.0 2013-04
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 14: Equipment for testing the safety of electrical equipment of machinery
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 14: Dispositifs de contrôle de la sécurité des appareils électriques sur
machines
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IEC 61557-14 ®
Edition 1.0 2013-04
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 14: Equipment for testing the safety of electrical equipment of machinery
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 14: Dispositifs de contrôle de la sécurité des appareils électriques sur
machines
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
Q
CODE PRIX
ICS 17.220.20; 29.080.01; 29.240.01 ISBN 978-2-83220-694-2
– 2 – 61557-14 © IEC:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Requirements . 8
4.1 General requirements . 8
4.2 Measuring quantities . 8
4.2.1 General . 8
4.2.2 Measurement of resistance of protective bonding . 9
4.2.3 Measurement of loop resistance . 9
4.2.4 Measurement of insulation resistance . 9
4.2.5 Testing of the effectiveness of protective measures with RCD . 9
4.2.6 Testing of dielectric strength . 9
4.2.7 Measurement of residual voltage . 10
4.2.8 Measurement of leakage current . 10
4.3 Construction requirements for testing equipment . 10
4.3.1 Overload capability . 10
4.3.2 Terminals . 10
4.3.3 Sockets for service purposes . 10
4.3.4 Degree of protection . 10
4.3.5 Class of protection . 11
4.3.6 Resistance of protective bonding . 11
4.3.7 Battery control . 11
4.3.8 Mechanical requirements . 11
4.3.9 Pollution degree . 11
4.3.10 Overvoltage and measurement categories . 11
4.3.11 Electromagnetic compatibility (EMC) . 11
4.3.12 Accessories . 11
5 Markings and operating instructions . 11
5.1 Markings . 11
5.2 Operating instructions . 12
6 Tests . 12
6.1 General . 12
6.2 Operating uncertainty . 12
6.3 Variations . 14
6.3.1 Variation due to position . 14
6.3.2 Variation due to supply voltage . 14
6.3.3 Variation due to temperature . 14
6.3.4 Variation due to phase angle of loop impedance . 14
6.3.5 Variation due to system frequency . 14
6.3.6 Variation due to system voltage . 14
6.3.7 Variation due to harmonics . 14
6.3.8 Variation due to d.c. quantities . 15
6.3.9 Variations due to external low frequency magnetic field (if applicable) . 15
6.3.10 Variations due to load current (if applicable) . 15
61557-14 © IEC:2013 – 3 –
6.3.11 Variations due to touch current caused by common mode voltage (if
applicable) . 15
6.3.12 Variations due to frequency of measured current (if applicable) . 15
6.3.13 Variations due to repeated clamping (if applicable) . 15
6.4 Tests of measuring equipment according to measuring functions. 15
6.5 Test of construction requirements of test equipment . 16
Bibliography . 17
Table 1 – Test voltages . 9
Table 2 – Determination of operating uncertainty . 13
Table 3 – Compliance tests of measuring equipment according to measuring function . 16
Table 4 – Test of construction requirements of test equipment . 16
– 4 – 61557-14 © IEC:2013
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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