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IEC 61557-4:2019 ED3

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

Publication date:   Jul 26, 2019

General information

60.60 Standard published   Jul 26, 2019

IEC

TC 85

International Standard

17.220.20   Measurement of electrical and magnetic quantities | 29.080.01   Electrical insulation in general | 29.240.01   Power transmission and distribution networks in general

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Scope

IEC 61557-4:2019 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. IEC 61557-4:2019 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) complement to the measurement category in Clause 4;
b) correction of the equation for operating uncertainty;
c) complement to the requirements for measuring with DC;
d) alignment of the structure with that of the whole IEC 61557 series.

Life cycle

PREVIOUSLY

WITHDRAWN
IEC 61557-4:2007 ED2

NOW

PUBLISHED
IEC 61557-4:2019 ED3
60.60 Standard published
Jul 26, 2019