IS/IEC 60071 : Part 11 : 2022 Insulation Co-ordination - Part 11 Definitions, Principles and Rules for HVDC System

ICS 29.080.30

ETD 40

NATIONAL FOREWORD

This Indian Standard (Part 11) which is identical to IEC 60071-11 : 2022 'Insulation co-ordination - Part 11: Definitions, principles and rules for HVDC system' Issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the HVDC Power Systems Sectional Committee and approval of the Electrotechnical Division Council. This standard supersedes IS/IEC 60071-5 : 2014 Insulation co-ordination: Part 5 Procedures for high-voltage direct current ( HVDC ) converter stations.

This standard is published in various parts. Other parts in this series are:

Part 1 Definition principles and rules

Part 2 Application guide

Part 4 Computational guide to insulation co-ordination and modeling of electrical networks

The text of the IEC standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appears referring to this standard, they should be read as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker, while in Indian Standards the current practice is to use a point (.) as the decimal marker.