Calculation of d.c. resistance of plain and coated copper conductors of low-frequency cables and wires - Application guide

applies to low-frequency cables and wires for telecommunication and gives a general method for calculating the resistance of copper conductors. includes the following significant technical change with respect to the previous edition: improvement of the calculation method of the resistance of copper conductors. The contents of the corrigendum of February 2012 have been included in this copy.

General Information

Status
Published
Publication Date
15-Feb-2007
Current Stage
PPUB - Publication issued
Start Date
28-Feb-2007
Completion Date
16-Feb-2007
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IEC TR 60344:2007 - Calculation of d.c. resistance of plain and coated copper conductors of low-frequency cables and wires - Application guide
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TECHNICAL IEC
REPORT TR 60344
Third edition
2007-02
Calculation of d.c. resistance of plain
and coated copper conductors
of low-frequency cables and wires –
Application guide
Reference number
IEC/TR 60344:2007(E)
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
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edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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TECHNICAL IEC
REPORT TR 60344
Third edition
2007-02
Calculation of d.c. resistance of plain
and coated copper conductors
of low-frequency cables and wires –
Application guide
© IEC 2007 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale G

International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – TR 60344 © IEC:2007(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CALCULATION OF DC RESISTANCE OF PLAIN
AND COATED COPPER CONDUCTORS OF LOW-FREQUENCY
CABLES AND WIRES – APPLICATION GUIDE

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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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
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consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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IEC 60344, which is a Technical Report, has been prepared by subcommittee 46C: Wires and
symmetric cables, of IEC technical committee 46: Cables, wires, waveguides, r.f. connectors,
r.f. and microwave passive components and accessories.
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”.
This third edition cancels and replaces the second edition published in 1980 and amendment 1
(1985). This edition constitutes a technical revision.

TR 60344  IEC:2007(E) – 3 –
This edition includes the following significant technical change with respect to the previous
edition:
– improvement of the calculation method of the resistance of copper conductors.
– the content was considered more appropriate for the publication of a Technical Report
rather than a International Standard.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
46C/761/DTR 46C/795A/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 IS
...

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