ABNT Catálogo
ABNT Catálogo
Norma Técnica
Código
IEC 60071-2:2018  
Código Secundário : N
Data de Publicação : 16/03/2018
Título : Insulation co-ordination - Part 2: Application guidelines
Título Idioma Sec. : Coordination de l'isolement - Partie 2: Lignes directrices en matière d'application
Comitê : TC 28 TC 28
Páginas : 316
Status : Em Vigor  
Idioma : Inglês
Organismo : IEC - International Electrotechnical Commission
Preço (R$) : 3060,00
Objetivo : NEW!IEC 60071-2:2018 is available as IEC 60071-2:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60071-2:2018 constitutes application guidelines and deals with the selection of insulation levels of equipment or installations for three-phase electrical systems. It gives guidance for the determination of the rated withstand voltages for ranges I and II of IEC 60071-1 and to justify the association of these rated values with the standardized highest voltages for equipment. It covers three-phase systems with nominal voltages above 1 kV. It has the status of a horizontal standard in accordance with IEC Guide 108. This edition includes the following significant technical changes with respect to the previous edition:
a) the annex on clearance in air to assure a specified impulse withstand voltage installation is deleted because the annex in IEC 60071-1 is overlapped;
b) 4.2 and 4.3 on surge arresters are updated;
c) 4.3.5 on very-fast-front overvoltages is revised. Annex J on insulation co-ordination for very-fast-front overvoltages in UHV substations is added;
d) Annex H on atmospheric correction – altitude correction is added.
e) Annex I on evaluation method of non-standard lightning overvoltage shape is added.

Normas Necessárias para a aplicação da IEC 60071-2:2018
ICS/CIN
29.080.30 - Sistemas de isolação
Palavras-Chave
 
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