IEC 60245-1:2003+AMD1:2007 CSV
(Main)Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 1: General requirements
Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 1: General requirements
Applies to rigid and flexible cables with insulation, and sheath if any, based on vulcanized rubber of rated voltages Uo/U up to and including 450/750 V used in power installations of nominal voltage not exceeding 450/750 V a.c. The particular types of cables are specified in IEC 60245-3, IEC 60245-4, etc. The code designations of these types of cables are given in Annex A. The principal change with respect to the previous edition is the replacement of insulation IE 1 with IE 4.
Conducteurs et câbles isolés au caoutchouc - Tension assignée au plus égale à 450/750 V - Partie 1: Exigences générales
S'applique aux conducteurs et câbles souples et rigides ayant une enveloppe isolante, et éventuellement une gaine, à base de caoutchouc vulcanisé, de tension assignée Uo/U au plus égale à 450/750 V, utilisés dans les installations d'énergie d'une tension nominale ne dépassant pas 450/750 V en courant alternatif. Les types particuliers de conducteurs et de câbles sont spécifiés dans la CEI 60245-3, la CEI 60245-4, etc. Le code de désignation de ces types de câbles est donné dans l'Annexe A. Le principal changement par rapport à l'édition précédente est le remplacement de l'isolation IE 1 par IE 4.
General Information
Standards Content (Sample)
IEC 60245-1
Edition 4.1 2008-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 1: General requirements
Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus égale
à 450/750 V –
Partie 1: Exigences générales
IEC 60245-1:2003+A1:2007
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IEC 60245-1
Edition 4.1 2008-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 1: General requirements
Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus égale
à 450/750 V –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CJ
CODE PRIX
ICS 25.160.20; 29.060.20 ISBN 2-8318-9450-6
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CONTENTS
FOREWORD.3
1 General.5
1.1 Scope.5
1.2 Normative references.5
2 Terms and definitions .6
2.1 Definitions relating to insulating and sheathing materials.6
2.2 Definitions relating to the tests .7
3 Marking.7
3.1 Indication of origin and cable identification .7
3.2 Durability.8
3.3 Legibility.8
4 Core identification.8
4.1 Core identification by colours .8
4.2 Core identification by numbers .9
5 General requirements for the construction of cables .10
5.1 Conductors.10
5.2 Insulation.11
5.3 Filler.13
5.4 Textile braid.14
5.5 Sheath.14
5.6 Tests on completed cables .17
6 Guide to use of the cables.20
Annex A (normative) Code designation .21
Annex B (normative) Calculation method for determination of the thickness of sheath
of cable types 60245 IEC 53, 57 and 66 of IEC 60245-4 .23
Bibliography.25
Figure 1 – Arrangement of marking.10
Table 1 – Requirements for non-electrical tests for cross-linked rubber insulation.12
Table 2 – Requirements for non-electrical tests for cross-linked rubber sheath .15
Table 3 – Requirements for electrical tests for cross-linked rubber insulated cables .18
Table 4 – Requirements for the static flexibility test for arc-welding electrode cables .19
Table 5 – Requirements for the static flexibility test for lift cables .19
Table B.1 – Fictitious diameter per nominal cross-sectional area .24
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60245-1 © IEC:2003+A1:2007 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
RUBBER INSULATED CABLES –
RATED VOLTAGES UP TO AND INCLUDING 450/750 V –
Part 1: General requirements
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
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60245-1 has been prepared by IEC technical committee 20:
Electric cables.
The principal change with respect to the previous edition is the replacement of insulation IE 1
with IE 4. This fourth edition does not constitute a full technical revision.
This consolidated version of IEC 60245-1 consists of the fourth edition (2003) [documents
20/659/FDIS and 20/679/RVD] and its amendment 1 (2007) [documents 20/902/FDIS and
20/909/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 4.1.
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A vertical line in the margin shows where the base publication has been modified by
amendment 1.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 60245 consists of the following parts, under the general title Rubber insulated cables –
Rated voltages up to and including 450/750 V:
Part 1: General requirements
Part 2: Test methods
Part 3: Heat resistant silicone insulated cables
Part 4: Cords and flexible cables
Part 5: Lift cables
Part 6: Arc welding electrode cables
Part 7: Heat resistant ethylene-vinyl-acetate rubber insulated cables
Part 8: Cords for applications requiring high flexibility
Parts 3 to 8 are for particular types of cable and should be read in conjunction with Part 1 and
Part 2. Further parts may be added as other types are standardized.
The committee has decided that the contents of the base publication and its amendments 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.
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60245-1 © IEC:2003+A1:2007 – 5 –
RUBBER INSULATED CABLES –
RATED VOLTAGES UP TO AND INCLUDING 450/750 V –
Part 1: General requirements
1 General
1.1 Scope
This part of IEC 60245 applies to rigid and flexible cables with insulation, and sheath if any,
based on vulcanized rubber of rated voltages U /U up to and including 450/750 V used in
o
power installations of nominal voltage not exceeding 450/750 V a.c.
NOTE For some types of flexible cables the term ‘cord’ is used.
The particular types of cables are specified in IEC 60245-3, IEC 60245-4, etc. The code
designations of these types of cables are given in Annex A.
The test methods specified in Parts 1 to 8 are given in IEC 60245-2, IEC 60332-1 and in the
relevant parts of IEC 60811.
1.2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 60173:1964, Colours of the cores of flexible cables and cords
IEC 60228:1978, Conductors of insulated cables
IEC 60245-2:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 2: Test methods
IEC 60245-3:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 3: Heat resistant silicone insulated cables
IEC 60245-4:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 4: Cords and flexible cables
IEC 60245-7:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 7: Heat resistant ethylene-vinyl-acetate rubber insulated cables
IEC 60332-1:1993, Tests on electric cables under fire conditions – Part 1: Test on a single
vertical insulated wire or cable
IEC 60811-1-1:1993, Common test methods for insulating and sheathing materials of electric
cables – Part 1: Methods for general application – Section 1: Measurement of thickness and
overall dimensions – Tests for determining the mechanical properties
IEC 60811-1-2:1985, Common test methods for insulating and sheathing materials of electric
cables – Part 1: Methods for general application – Section Two: Thermal ageing methods
IEC 60811-1-4:1985, Common test methods for insulating and sheathing materials of electric
cables – Part 1: Methods for general application – Section Four: Tests at low temperature
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IEC 60811-2-1:1998, Insulating and sheathing materials of electric and optical cables –
Common test methods – Part 2-1: Methods specific to elastomeric compounds – Ozone
resistance, hot set andmineral oil immersion tests
IEC 60811-3-1:1985, Common test methods for insulating and sheathing materials of electric
cables – Part 3: Methods specific to PVC compounds – Section One: Pressure test at high
temperature – Tests for resistance to cracking
IEC 62440, Electric cables – Guide to use for cables with a rated voltage not exceeding
1
450/750V
2 Terms and definitions
For the purposes of this document, the following terms and definitions apply:
2.1 Definitions relating to insulating and sheathing materials
2.1.1
type of compound
category in which a compound is placed according to its properties, as determined by specific
tests
NOTE The type designation is not directly related to the composition of the compound.
2.1.2
rubber compound
combination of materials suitably selected, proportioned, treated and vulcanized, of which the
characteristic constituent is a rubber and/or synthetic elastomer
NOTE Vulcanization is defined as a post-application treatment taking place after the insulation and/or sheath has
been applied in order to induce permanent cross-linking of the elastomer.
2.1.3
polychloroprene compound (PCP) or other equivalent synthetic elastomer
vulcanized compound in which the elastomer is polychloroprene or other equivalent synthetic
elastomer providing a compound with properties similar to PCP
2.1.4
ethylene-vinyl acetate rubber compound (EVA) or other equivalent synthetic elastomer
cross-linked compound in which the elastomer is ethylene-vinyl acetate or other equivalent
synthetic elastomer providing a compound with properties similar to EVA
2.1.5
ethylene-propylene rubber compound (EPR) or equivalent synthetic elastomer
cross-linked compound in which the elastomer is ethylene-propylene or equivalent synthetic
elastomer providing a compound with properties similar to EPR
2.1.6
cross-linked polyvinyl chloride (XLPVC)
combinations of materials of which polyvinyl chloride is the characteristic constituent,
including adequate cross-linking agents, suitably selected, proportioned and treated which,
when cross-linked, meet the requirements given in the particular specification
________
1
In preparation.
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60245-1 © IEC:2003+A1:2007 – 7 –
2.2 Definitions relating to the tests
2.2.1
type tests
T
tests required to be made before supplying a type of cable covered by this standard on a
general commercial basis, in order to demonstrate satisfactory performance characteristics to
meet the intended application
NOTE These tests are of such a nature that, after they have been made, they need not be repeated, unless
changes have been made in the cable materials or design which might change the performance characteristics.
2.2.2
sample tests
S
tests made on samples of completed cable, or components taken from a completed cable,
adequate to verify that the finished product meets the design specifications
2.3
rated voltage
reference voltage for which the cable is designed, and which serves to define the electrical
tests
NOTE 1 The rated voltage is expressed by the combination of two values: U /U expressed in volts (V):
o
U being the r.m.s. value between any insulated conductor and "earth" (metal covering of the cable or the
o
surrounding medium);
U being the r.m.s. value between any two phase conductors of a multicore cable or of a system of single-core
cables.
In an alternating-current system, the rated voltage of a cable is at least equal to the nominal voltage of the system
for which it is intended.
This condition applies both to the value U and to the value U.
o
In a direct current system, the nominal voltage of the system is not higher than 1,5 times the rated voltage of the
cable.
NOTE 2 The operating voltage of a system may permanently exceed the nominal voltage of such a system by
10 %. A cable can be used at a 10 % higher operating voltage than its rated voltage if the latter is at least equal to
the nominal voltage of the system.
3 Marking
3.1 Indication of origin and cable identification
Cables shall be provided with an indication of the manufacturer, which shall be either an
identification thread or a repetitive marking of the manufacturer's name or trademark.
Marking may be by printing or by reproduction in relief on, or in, the insulation or sheath, or by
printing on a proofed tape or a separate marker tape.
3.1.1 Continuity of marks
Each specified mark shall be regarded as continuous if the distance between the end of the
mark and the beginning of the next identical mark does not exceed
550 mm if the marking is on the outer sheath of the cable,
275 mm if the marking is
– on the insulation of an unsheathed cable, or
– on the insulation of a sheathed cable, or
– on a tape within a sheathed cable.
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– 8 – 60245-1 © IEC:2003+A1:2007
3.2 Durability
Printed markings shall be durable. Compliance with this requirement shall be checked by the
test given in 1.8 of IEC 60245-2.
3.3 Legibility
All markings shall be legible.
The colours of the identification threads shall be easy to recognize or easily made
recognizable, if necessary, by cleaning with petrol or other suitable solvent.
4 Core identification
Each core shall be identified as follows:
– in cables having up to and including five cores, by colour; see 4.1;
– in cables having more than five cores by colour or by number; see 4.1 and 4.2.
NOTE The colour scheme is under consideration.
4.1 Core identification by colours
4.1.1 General requirements
Identification of the cores of a cable shall be achieved by the use of coloured insulation or
other suitable method.
Each core of a cable shall have only one colour, except the core identified by a combination
of the colours green and yellow.
The colours green and yellow, when not in combination, shall not be used for any multicore
cable.
NOTE The colours red and white should preferably be avoided.
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60245-1 © IEC:2003+A1:2007 – 9 –
4.1.2 Colour scheme
The preferred colour scheme is as follows:
single-core cable: no preferred colour scheme;
two-core cable: no preferred colour scheme;
three-core cable: either green-and-yellow, blue, brown,
or brown, black, grey
four-core cable: either green-and-yellow, brown, black, grey,
or blue, brown, black, grey
five-core cable: either green-and-yellow, blue, brown, black, grey,
or blue, brown, black, grey, black.
cables having more either in the outer layer one core green-and-yellow, one core blue,
than five cores: and the other cores of one and the same colour, however not green,
yellow, blue or brown; in the other layers one core brown and the
other cores of one and the same colour, however not green, yellow,
blue or brown;
or in the outer layer one core blue, one core brown and the other
cores of one and the same colour, however not green, yellow, blue
or brown; in the other layers one core brown and the other cores of
one and the same colour, however not green, yellow, blue or brown.
The colours shall be clearly identifiable and durable. Durability shall be checked by the test
given in 1.8 of IEC 60245-2.
4.1.3 Colour combination green/yellow
The distribution of the colours for the core coloured green/yellow shall comply with the
following condition (which is in accordance with IEC 60173): for every 15 mm length of core,
one of these colours shall cover at least 30 % and not more than 70 % of the surface of the
core, the other colour covering the remainder.
NOTE Information on the use of the colours green-and-yellow and blue.
It is understood that the colours green and yellow, when they are combined as specified above, are recognized
exclusively as a means of identification of the core intended for use as earth connection or similar protection, and
that the colour blue is intended for the identification of the core intended to be connected to neutral. If, however,
there is no neutral, blue can be used to identify any core except the earthing or protective conductor.
4.2 Core identification by numbers
4.2.1 General requirements
The insulation of the cores shall be of the same colour and numbered sequentially, except for
the core coloured green/yellow, if one is included.
The green/yellow core, if any, shall comply with the requirement of 4.1.3 and shall be in the
outer layer.
The numbering shall start with the number “1” in the inner layer.
The numbers shall be printed in arabic numerals on the outer surfaces of the cores. All the
numbers shall be of the same colour, which shall contrast with the colour of the insulation.
The numerals shall be legible.
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1
2
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4.2.2 Preferred arrangement of marking
The numbers shall be repeated at regular intervals along the core, consecutive numbers
being inverted in relation to each other.
When the number is a single numeral, a dash shall be placed underneath it. If the number
consists of two numerals, these shall be positioned one below the other, and a dash
placed below the lower numeral. The spacing d between consecutive numbers shall not
exceed 50 mm.
The arrangement of the marks is shown in Figure 1 below.
d d
IEC 2924/03
Figure 1 – Arrangement of marking by numbers
4.2.3 Durability
Printed numerals shall be durable. Compliance with this requirement shall be checked by the
test given in 1.8 of IEC 60245-2.
5 General requirements for the construction of cables
5.1 Conductors
5.1.1 Material
The conductors shall consist of annealed copper. Unless otherwise specified in the particular
specifications (IEC 60245-3, IEC 60245-4, etc.), the wires of conductors may be plain or
tinned. Tinned wires shall be covered with an effective layer of tin.
5.1.2 Construction
The maximum diameters of the wires of the conductors shall be in accordance with
IEC 60228, unless otherwise specified in the particular cable specifications.
The classes of conductors relevant to the various types of cables are given in the particular
specifications (IEC 60245-3, IEC 60245-4, etc.).
5.1.3 Separator between conductor and insulation
An optional separating tape made of suitable material may be placed between the plain or
tinned conductor and the insulation.
5.1.4 Construction verification
Compliance with the requirements of 5.1.1 and 5.1.2, including the requirements of IEC
60228, shall be checked by inspection and by measurement.
1
2
1
2
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60245-1 © IEC:2003+A1:2007 – 11 –
5.1.5 Electrical resistance
Unless otherwise specified in the particular specifications (IEC 60245-3, IEC 60245-4, etc.),
the resistance of each conductor at 20 °C shall be in accordance with the requirements of
IEC 60228 for the given class of conductor.
Compliance shall be checked by the test given in 2.1 of IEC 60245-2.
5.2 Insulation
5.2.1 Material
The insulation shall be a cross-linked material of the type specified for each type of cable in
the particular specification (IEC 60245-3, IEC 60245-4, etc.).
Type IE 2 in the case of cables insulated with silicone rubber compound.
Type IE 3 in the case of cables insulated with rubber compound based on ethylene vinyl-
acetate or equivalent materials.
Type IE 4 in the case of cables insulated with ordinary ethylene-propylene rubber compound
or equivalent materials.
The test requirements for these compounds are specified in Table 1.
NOTE For some cables belonging to IEC 60245-8, insulation type XP1 is given in that particular specification.
The maximum operating temperatures for cables insulated with any of the above types of
compound and covered by the particular specifications (IEC 60245-3, IEC 60245-4, etc.) are
given in those publications.
5.2.2 Application to the conductor
The insulation shall be closely applied to the conductor or separator. In the particular
specifications (IEC 60245-3, IEC 60245-4, etc.) it is stated, for each type of cable, whether
the insulation shall be applied in a single layer or in a number of layers, and whether it shall
or shall not be covered with a proofed tape. It shall be possible to remove the insulation,
without damage to the insulation itself, to the conductor, or to the tin or metal coating
...
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