EN 60719:1993

SLOVENSKI STANDARD
01-februar-1998
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Calculation of the lower and upper limits for the average outer dimensions of cables with
circular copper conductors and of rated voltages up to and including 450/750 V (IEC
60719:1992)
Berechnung der unteren und oberen Grenzen der mittleren Außenmaße von Leitungen
mit runden Kupferleitern und Nennspannungen bis 450/750 V (IEC 60719:1992)
Calcul des valeurs minimales et maximales des dimensions extérieures moyennes des
conducteurs et câbles à âmes circulaires en cuivre et de tension nominale au plus égale
à 450/750 V (CEI 60719:1992)
Ta slovenski standard je istoveten z: EN 60719:1993
ICS:
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEI
NORME
IEC
INTERNATIONALE
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
1992-03
Calcul des valeurs minimales et maximales
des dimensions extérieures moyennes
des conducteurs et câbles à âmes circulaires
en cuivre et de tension nominale
au plus égale à 450/750 V
Calculation of the lower and upper limits
for the average outer dimensions of cables
with circular copper conductors and
of rated voltages up to and including 450/750 V
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719©IEC - 3 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
CALCULATION OF THE LOWER AND UPPER LIMITS
FOR THE AVERAGE OUTER DIMENSIONS
OF CABLES WITH CIRCULAR COPPER CONDUCTORS
AND OF RATED VOLTAGES UP TO
AND INCLUDING 450/750 V
FOREWORD
1) The formal decisions or agreements of the IEC on technical matters, prepared by Technical Committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
They have the form of recommendations for international use and they are accepted by the National
2)
Committees in that sense.
3) In order to promote international unification, the IEC expresses the wish that all National Committees
should adopt the text of the IEC recommendation for their national rules in so far as national conditions will
permit. Any divergence between the IEC recommendation and the corresponding national rules should, as
far as possible, be clearly indicated in the latter.
This International Standard has been prepared by Sub-Committee 20B: Low-voltage
cables, of IEC Technical Committee No. 20: Electric cables.
This second edition of IEC 719 replaces the first edition issued in 1981.
The text of this standard is based on the following documents:
DIS Report on Voting
20B(CO)113 20B(CO)123
Full information on the voting for the approval of this standard can be found in the Voting
Report indicated in the above table.

719©IEC -5-
CALCULATION OF THE LOWER AND UPPER LIMITS
FOR THE AVERAGE OUTER DIMENSIONS
OF CABLES WITH CIRCULAR COPPER CONDUCTORS
AND OF RATED VOLTAGES UP TO
AND INCLUDING 450/750 V
1 General
1.1 Scope
This International Standard specifies a method for calculation of the lower and upper limits
for the average outer diameter of cables and the outer dimensions of flat cords with
circular copper conductors and of rated voltages up to and including 450/750 V.
This standard is not applicable to mineral insulated cables. The method shall not be used
to calculate the diameter over the core assembly for determining the sheath thickness; the
method given in Appendix A of IEC 502 shall be used for this purpose.
NOTES
1 It is stressed that the conductor diameters given in the tables are intended only for use in this standard
as a basis for calculation and are not intended for verification by measurement.
2 The factors given in 2.5 and 3.1 of this standard may be varied in preparing standards for cables in
which the number of cores, the hardness of the insulation, precise positioning of the conductors or other
factors may affect the dimensional tolerances permissible.
1.2 Normative references
The following normative document contains provisions which, through reference in
...