IEC TS 63471:2023

IEC TS 63471 ®
Edition 1.0 2023-12
TECHNICAL
SPECIFICATION
DC voltages for HVDC grids
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IEC TS 63471 ®
Edition 1.0 2023-12
TECHNICAL
SPECIFICATION
DC voltages for HVDC grids
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.200; 29.240.01 ISBN 978-2-8322-7998-4

– 2 – IEC TS 63471:2023  IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Recommended DC voltages for HVDC grids . 7
Bibliography . 8

Table 1 – Recommended nominal DC voltages for HVDC grids with a DC voltage
above 1,5 kV . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DC VOLTAGES FOR HVDC GRIDS
FOREWORD
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IEC TS 64571 has been prepared by IEC technical committee 115: High Voltage Direct Current
(HVDC) transmission for DC voltages above 100 kV. It is a Technical Specification.
The text of this Technical Specification is based on the following documents:
Draft Report on voting
115/343/DTS 115/358/RVDTS
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Specification is English.

– 4 – IEC TS 63471:2023  IEC 2023
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
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The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
INTRODUCTION
While high voltage direct current (HVDC) solutions for bulk power transmission have been
developed and implemented commercially since 1954, recent years have seen a strong
increase in the number
...