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IEC 60947-2-ed.5.1
Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
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STANDARD published on 8.7.2019
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The information about the standard:
Designation standards: IEC 60947-2-ed.5.1
Publication date standards: 8.7.2019
SKU: NS-953651
The number of pages: 1293
Approximate weight : 3910 g (8.62 lbs)
Country: International technical standard
The category - similar standards:
Annotation of standard text IEC 60947-2-ed.5.1 :
IEC 60947-2:2016+A1:2019 applies to circuit-breakers, the main contacts of which are intended to be connected to circuits, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.; it also contains additional requirements for integrally fused circuit-breakers. This fifth edition cancels and replaces the fourth edition published in 2006, Amendment 1:2009 and Amendment 2:2013. This edition constitutes a technical revision. This edition includes the following significant additions with respect to the previous edition:- tests for verification of selectivity in Annex A (see A.5.3);- critical load current tests for d.c. circuit-breakers (see 8.3.9);- new Annex P for circuit-breakers for use in photovoltaic applications;- new Annex R for residual-current circuit-breakers with automatic reclosing functions. The contents of the corrigendum of November 2016 have been included in this copy. This consolidated version consists of the fifth edition (2016) and its amendment 1 (2019). Therefore, no need to order amendment in addition to this publication.The contents of the corrigendum of October 2019 have been included in this copy. LIEC 60947-2:2016+A1:2019 est applicable aux disjoncteurs dont les contacts principaux sont destines a etre relies a des circuits dont la tension assignee ne depasse pas 1 000 V en courant alternatif ou 1 500 V en courant continu; elle contient aussi des exigences supplementaires pour les disjoncteurs a fusibles incorpores. Cette cinquieme edition annule et remplace la quatrieme edition parue en 2006, lAmendement 1:2009 et lAmendement 2:2013. Cette edition constitue une revision technique. Cette edition inclut les additions techniques majeures suivantes par rapport a ledition precedente:- essais pour la verification de la selectivite dans lAnnexe A (voir A.5.3),- essais de courants de charge critiques pour disjoncteurs a courant continu (voir 8.3.9),- nouvelle Annexe P relative aux disjoncteurs pour utilisation dans des applications photovoltaiques,- nouvelle Annexe R relative aux disjoncteurs de courant differentiel residuel avec fonctions de refermeture automatique. Le contenu du corrigendum de novembre 2016 a ete pris en consideration dans cet exemplaire. Cette version consolidee comprend la cinquieme edition (2016) et son amendement 1 (2019). Il nest donc pas necessaire de commander lamendement avec cette publication.Le contenu du corrigendum doctobre 2019 a ete pris en consideration dans cet exemplaire.
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