BS EN IEC 60071-2:2018 - Insulation co-ordination. Application guidelines

BS EN IEC 60071-2:2018

Insulation co-ordination. Application guidelines

Status : Current, Under review   Published : May 2018



IEC 60071-2:2018 is now 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.

Standard NumberBS EN IEC 60071-2:2018
TitleInsulation co-ordination. Application guidelines
StatusCurrent, Under review
Publication Date09 May 2018
Normative References(Required to achieve compliance to this standard)EN 60071-1:2006/A1:2010, EN 60071-1:2006, EN 60505:2011, IEC 60060-1:2010, IEC 60071-1:2006/AMD1:2010, EN 60060-1:2010, IEC 60505:2011, IEC 60071-1:2006, IEC/TS 60815-1, ISO 2533:1975
Informative References(Provided for Information)EN 60507, IEC 60507, EN IEC 60099-5, IEC 60099-8, IEC 60099-5, EN IEC 60099-8, IEC 62271-100:2008, EN 60099-4:2014, IEC 60099-4:2014, IEC 62271-1:2017, EN 62271-100:2009, EN 62271-1:2017
ReplacesBS EN 60071-2:1997, IEC 60071-2:1996
International RelationshipsEN IEC 60071-2:2018,IEC 60071-2:2018
Draft Superseded By17/30339060 DC
DescriptorsElectrical insulation, Impulse voltages, Overhead power lines, Surge protection, Overvoltage, Clearance distances, Mathematical calculations, Withstand voltage, Overvoltage protection, Classification systems, Electrical equipment, High-voltage equipment, Protected electrical equipment, Rated voltage, Three-phase current, Factor of safety, Statistical distribution, Electrical installations, Coordination, Dielectric strength, Statistical methods of analysis, Selection, High-voltage installations, Stress
Title in FrenchCoordination de l'isolement Lignes directrices en matière d'application
Title in GermanIsolationskoordination Anwendungsrichtlinie
ISBN978 0 580 93673 9
File Size6.454 MB

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