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IEC 61557-3-ed.3.0

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

STANDARD published on 26.7.2019

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The information about the standard:

Designation standards: IEC 61557-3-ed.3.0
Publication date standards: 26.7.2019
The number of pages: 21
Approximate weight : 63 g (0.14 lbs)
Country: International technical standard
Category: Technical standards IEC

Annotation of standard text IEC 61557-3-ed.3.0 :

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. LIEC 61557-3:2019 specifie les exigences applicables aux appareils destines a mesurer limpedance de boucle entre un conducteur de ligne et le conducteur de protection, entre un conducteur de ligne et le conducteur neutre, ou entre deux conducteurs de ligne en utilisant la chute de tension lorsque le circuit en essai est charge. LIEC 61557-3:2019 annule et remplace la deuxieme edition parue en 2007. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: a) ajout dune exigence relative a la categorie de mesure; b) ajout de nouvelles exigences relatives aux instructions de fonctionnement; c) alignement de la structure sur lensemble de la serie IEC 61557.