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  • BSI
    BS EN IEC 60071-2:2018 - TC Tracked Changes. Insulation co-ordination - Application guidelines
    Edition: 2020
    $772.72
    / user per year

Description of BS EN IEC 60071-2:2018 - TC 2020

IEC 60071-2:2018 is now available as /2 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 - TC
TitleTracked Changes. Insulation co-ordination - Application guidelines
StatusWithdrawn
Publication Date2020-02-25
Replaced ByBS EN IEC 60071-2:2023 - TC
DescriptorsStress, High-voltage installations, Selection, Statistical methods of analysis, Dielectric strength, Coordination, Electrical installations, Statistical distribution, Factor of safety, Three-phase current, Rated voltage, Protected electrical equipment, High-voltage equipment, Electrical equipment, Classification systems, Overvoltage protection, Withstand voltage, Mathematical calculations, Clearance distances, Overvoltage, Surge protection, Overhead power lines, Impulse voltages, Electrical insulation
ICS29.080.30 Insulation systems, 29.080.01 Electrical insulation in general
CommitteePEL/99
ISBN978 0 539 09297 4
PublisherBSI
Pages0

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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