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BSI BS EN IEC 60071-2:2018

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

Insulation co-ordination -- Application guidelines

PUBLISH DATE 2018
PAGES 162
BSI BS EN IEC 60071-2:2018
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.

SDO BSI: British Standards Institution
Document Number IEC 60071-2
Publication Date May 9, 2018
Language en - English
Page Count 162
Revision Level
Supercedes
Committee PEL/99
Publish Date Document Id Type View
Sept. 22, 2023 BS EN IEC 60071-2:2023 Revision
May 9, 2018 BS EN IEC 60071-2:2018 Revision