BAS EN IEC 61557-3:2023
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 3: Loop impedance
General Information
Status: Published
No. of pages: 17
Language: English
Edition: 2.
Adoption method: Endorsment
Publication date: 13.07.2023
Technical committee:
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Abstract
<!-- 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.
Lifecycle
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Original document and degree of correspondence
- EN IEC 61557-3:2022, identical
- IEC 61557-3:2019, identical