BS EN IEC 60071-1:2019 - Insulation co-ordination. Definitions, principles and rules

BS EN IEC 60071-1:2019

Insulation co-ordination. Definitions, principles and rules

Status : Current   Published : October 2019



IEC 60071-1:2019 is available as

IEC 60071-1:2019 RLV

which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60071-1:2019 applies to three-phase AC systems having a highest voltage for equipment above 1 kV. It specifies the procedure for the selection of the rated withstand voltages for the phase-to-earth, phase-to-phase and longitudinal insulation of the equipment and the installations of these systems. It also gives the lists of the standard withstand voltages from which the rated withstand voltages are selected. This document describes that the selected withstand voltages are associated with the highest voltage for equipment. This association is for insulation co-ordination purposes only. The requirements for human safety are not covered by this document. Although the principles of this document also apply to transmission line insulation, the values of their withstand voltages can be different from the standard rated withstand voltages. The apparatus committees are responsible for specifying the rated withstand voltages and the test procedures suitable for the relevant equipment taking into consideration the recommendations of this document.
NOTE In IEC 60071-2, all rules for insulation co?ordination given in this document are justified in detail, in particular the association of the standard rated withstand voltages with the highest voltage for equipment. When more than one set of standard rated withstand voltages is associated with the same highest voltage for equipment, guidance is provided for the selection of the most suitable set.
The main changes from the previous edition are as follows:
- all references are updated to current IEC standards, and the bibliography is deleted;
- some definitions are clarified in order to avoid overlapping and ensure clear understanding;
- letter symbols are changed and corrected in order to keep the consistency with relevant IEC standards;
- some titles are changed to clarify understanding (see Clauses A.2, A.3 and Annex B).

Standard NumberBS EN IEC 60071-1:2019
TitleInsulation co-ordination. Definitions, principles and rules
Publication Date25 October 2019
Normative References(Required to achieve compliance to this standard)IEC 60071-2, EN IEC 60071-2, EN 60099-4, IEC 60038, IEC 60099-4, IEC 60060-1, EN 60060-1, EN 60038
Informative References(Provided for Information)IEC 60507, IEC TS 60815-1, IEC 60633, EN 60507, IEC Guide 108, EN IEC 60633, IEC 60050-614:2016
ReplacesBS EN 60071-1:2006+A1:2010
International RelationshipsEN IEC 60071-1:2019,IEC 60071-1:2019
Draft Superseded By18/30363040 DC
DescriptorsElectrical protection equipment, High-voltage equipment, Overvoltage, Electrical installations, Withstand voltage, High-voltage installations, Rated voltage, Coordination, Three-phase current, Electrical insulation, Definitions, Impulse voltages, Dielectric strength, Dielectric-strength tests, Electrical testing, Electrical equipment
Title in FrenchCoordination de l'isolement Définitions, principes et règles
Title in GermanIsolationskoordination Begriffe, Grundsätze und Anforderungen
ISBN978 0 580 99117 2
File Size1.481 MB

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