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  • BSI
    BS EN IEC 60071-2:2023 Insulation co-ordination - Application guidelines
    Edition: 2023
    $641.56
    / user per year

Description of BS EN IEC 60071-2:2023 2023

This part of IEC 60071 constitutes application guidelines and deals with the selection of insulation levels of equipment or installations for three-phase a.c. systems. Its aim is to give 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. This association is for insulation co-ordination purposes only. The requirements for human safety are not covered by this document. This document covers three-phase a.c. systems with nominal voltages above 1 kV. The values derived or proposed herein are generally applicable only to such systems. However, the concepts presented are also valid for two-phase or single-phase systems. This document covers phase-to-earth, phase-to-phase and longitudinal insulation. This document is not intended to deal with routine tests. These are to be specified by the relevant product committees. The content of this document strictly follows the flow chart of the insulation co-ordination process presented in Figure 1 of IEC 60071-1:2019. Clauses 5 to 8 correspond to the squares in this flow chart and give detailed information on the concepts governing the insulation coordination process which leads to the establishment of the required withstand levels. This document emphasizes the necessity of considering, at the very beginning, all origins, all classes and all types of voltage stresses in service irrespective of the range of highest voltage for equipment. Only at the end of the process, when the selection of the standard withstand voltages takes place, does the principle of covering a particular service voltage stress by a standard withstand voltage apply. Also, at this final step, this document refers to the correlation made in IEC 60071-1 between the standard insulation levels and the highest voltage for equipment. The annexes contain examples and detailed information which explain or support the concepts described in the main text, and the basic analytical techniques used.

Standard NumberBS EN IEC 60071-2:2023
TitleInsulation co-ordination - Application guidelines
StatusDefinitive
Publication Date2023-09-22
ReplacesBS EN IEC 60071-2:2018
Identical National Standard OfEN 60071-2 Ed.5.0, IEC 60071-2 Ed.5.0
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 03017 4
PublisherBSI
Pages190

The following editions for this book are also available...

Format Year Publisher Type Title Annual Price
2023
BSI
Standards
 $772.72 Buy

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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