IEC TR 62271-301:2009

IEC/TR 62271-301 ®
Edition 2.0 2009-09
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
High-voltage switchgear and controlgear –
Part 301: Dimensional standardisation of high-voltage terminals

Appareillage à haute tension –
Partie 301: Normalisation dimensionnelle des bornes à haute tension

IEC/TR 62271-301:2009
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IEC/TR 62271-301 ®
Edition 2.0 2009-09
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
High-voltage switchgear and controlgear –
Part 301: Dimensional standardisation of high-voltage terminals

Appareillage à haute tension –
Partie 301: Normalisation dimensionnelle des bornes à haute tension

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
H
CODE PRIX
ICS 29.130.10 ISBN 978-2-88910-658-5
– 2 – TR 62271-301 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 301: Dimensional standardisation of high-voltage terminals

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 62271-301, which is a technical report, has been prepared by subcommittee 17A: High-
voltage switchgear and controlgear, of IEC technical committee 17: Switchgear and
controlgear.
This second edition cancels and replaces the first edition published in 2004 and constitutes a
technical revision.
The main changes with respect to the previous edition are the addition of Clause 2, Terms
and definitions, as well as Figures 2 through 7.

TR 62271-301 © IEC:2009 – 3 –
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
17A/873/DTR 17A/882/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 62271series, published under general title High-voltage switchgear
and controlgear, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
– 4 – TR 62271-301 © IEC:2009
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –

Part 301: Dimensional standardisation of high-voltage terminals

1 Scope
This technical report applies to high-voltage switchgear and controlgear such as circuit-
breakers, disconnectors and switches. However, its application to other equipment is not
excluded. No coordination between dimensions and the rated normal current can be given.
2 Terms and definitions
For the purposes of this document, the following terms and definition apply.
2.1
high-voltage (HV) terminal
conductive part of switchgear and controlgear to which a terminal connector is fastened
2.2
terminal connector
part that joins a conductor to a HV terminal
3 HV terminal
...