Table of Contents

FOREWORD
1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and symbols
4 Representative voltage stresses in service
5 Co-ordination withstand voltage
6 Required withstand voltage
7 Standard withstand voltage and testing procedures
8 Special considerations for overhead lines
9 Special considerations for substations
Annex A (informative) - Determination of temporary
        overvoltages due to earth faults
Annex B (informative) - Weibull probability distributions
Annex C (informative) - Determination of the representative
        slow-front overvoltage due to line energization and
        re-energization
Annex D (informative) - Transferred overvoltages in
        transformers
Annex E (informative) - Lightning overvoltages
Annex F (informative) - Calculation of air gap breakdown
        strength from experimental data
Annex G (informative) - Examples of insulation co-ordination
        procedure
Annex H (informative) - Atmospheric correction - Altitude
        correction
Annex I (informative) - Evaluation method of non-standard
        lightning overvoltage shape for representative
        voltages and overvoltages
Annex J (informative) - Insulation co-ordination for
        very-fast-front overvoltages in UHV substations
Bibliography

Abstract

Provides application guidelines and deals with the selection of insulation levels of equipment or installations for three-phase electrical systems.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Electrotechnical Committee
Pages
ISBN
Committee	TC 28