EN IEC 61557-3:2022

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 3: Loop impedance EN IEC 61557-3:2022

Publication date:   Aug 17, 2022

General information

60.60   Standard published   May 20, 2022

CENELEC

CLC/TC 85X Measuring equipment for electrical and electromagnetic quantities

European Norm

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

<!-- NEW! -->IEC 61557-3:2019 is available as <a href="https://webstore.iec.ch/publication/65552">IEC 61557-3:2019 RLV</a> which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.</br></br>IEC 61557-3:2019 specifies the requirements applicable to equipment for measuring the loop impedance between a line conductor and protective conductor; between a line conductor and neutral; or between two line conductors by using the voltage drop when the circuit under test is loaded. IEC 61557-3:2019 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 equirements as regards the measurement category;

b) addition of new requirements for operating instructions;

c) alignment of the structure with that of the whole IEC 61557 series.

Life cycle

PREVIOUSLY

WITHDRAWN
EN 61557-3:2007

NOW

PUBLISHED
EN IEC 61557-3:2022
60.60 Standard published
May 20, 2022




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