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IEC 61557-4-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 4: Resistance of earth connection and equipotential bonding
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STANDARD published on 26.7.2019
The information about the standard:
Designation standards: IEC 61557-4-ed.3.0
Publication date standards: 26.7.2019
SKU: NS-955670
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Measurement of electrical and magnetic quantitiesElectrical insulation in generalPower transmission and distribution networks in general
Annotation of standard text IEC 61557-4-ed.3.0 :
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. LIEC 61557-4:2019 specifie les exigences applicables aux appareils destines a mesurer la resistance de conducteurs de terre, de conducteurs de terre de protection et de conducteurs dequipotentialite, y compris leurs liaisons et bornes, avec une indication de la valeur mesuree ou une indication des limites. LIEC 61557-4:2019 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) developpement des informations concernant la categorie de mesure a lArticle 4; b) correction de lequation relative a lincertitude de fonctionnement; c) developpement des exigences de mesure de la tension continue; d) alignement de la structure sur lensemble de la serie IEC 61557.
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