IEC 60245-8:1998+AMD1:2003+AMD2:2011 CSV

Rubber insulated cables - Rated voltages up to and including 450/750 V - Part 8: Cords for applications requiring high flexibility

IEC 60245-8:1998+A1:2003+A2:2011 details the particular specifications for rubber insulated and textile braid covered cords of rated voltage 300/300 V, for use in applications where high flexibility is required, for example iron cords. This consolidated version consists of the first edition (1998) its amendment 1 (2003) and its amendment 2 (2011). Therefore, no need to order amendments in addition to this publication.

Conducteurs et câbles isolés au caoutchouc - Tension assignée au plus égale à 450/750 V - Partie 8: Câbles pour applications nécessitant une flexibilité élevée

La CEI 60245-8:1998+A1:2003+A2:2011 précise les spécifications particulières applicables aux câbles à enveloppe isolante de caoutchouc recouverts d'une tresse textile, de tension assignée égale à 300/300 V, pour une utilisation dans les applications nécessitant une flexibilité élevée, par exemple les cordons de fer à repasser.  Cette version consolidée comprend la première édition (1998), son amendement 1 (2003) et son amendement 2 (2011). Il n'est donc pas nécessaire de commander les amendements avec cette publication.

General Information

• Status: Published
• Publication Date: 17-Jan-2012
• ICS: 29.060.20 - Cables
• Technical Committee: TC 20 - Electric cables
• Current Stage: PPUB - Publication issued
• Start Date: 18-Jan-2012
• Completion Date: 18-Jan-2012

Overview

IEC 60245-8:1998+AMD1:2003+AMD2:2011 CSV specifies requirements for rubber insulated, textile braid covered cords with a rated voltage of 300/300 V, designed for applications where superior flexibility is essential. Published and maintained by the International Electrotechnical Commission (IEC), this standard ensures that cords used in demanding environments, such as for iron cords and similar appliances, maintain performance, safety, and reliability. The consolidated edition incorporates the original 1998 publication and its subsequent amendments, offering a comprehensive and up-to-date reference for manufacturers and testing bodies.

Key Topics

• Scope and Purpose
  IEC 60245-8 focuses on cords that require enhanced flexibility while maintaining electrical safety and durability. The standard applies to cords with rubber insulation and a textile braided outer layer.

• Construction Requirements

  • Cords must consist of 2 or 3 Class 6 conductors (plain or tinned copper), complying with relevant resistance limits.
  • A separator of suitable material may be included between the conductor and insulation.
  • Insulation must be extruded ethylene propylene rubber (EPR) compound.
  • Fillers made of textile material are used to maintain the cord’s shape and flexibility.
  • Textile braid covering requires a minimum number of threads and crossings, with specific requirements for coverage and carrier count to assure mechanical protection and flexibility.

• Testing and Compliance

  • A comprehensive set of electrical and mechanical tests to verify resistance, insulation thickness, flexibility, kink resistance, and durability.
  • Flexing and kink tests simulate typical usage scenarios, while coverage measurements of the textile braid ensure long-term performance.
  • Maximum working temperature for conductors in use is specified, contributing to the cord’s safety profile.

Applications

• Household and Portable Appliances
  The standard’s flexibility and durability requirements make it ideal for cords used in irons, portable tools, and small domestic appliances subject to frequent movement.

• Industrial Use
  Suitable for light industrial equipment where cables are subject to continuous flexing, bending, and abrasion.

• Replacement and Maintenance
  Ensures that replacement cords for legacy equipment continue to meet established international safety and performance benchmarks.

Related Standards

• IEC 60245-1: Rubber insulated cables - General requirements for all cable types in this series.
• IEC 60245-2: Rubber insulated cables - Test methods for verifying construction and electrical/mechanical properties.
• IEC 60245-4: Cords and flexible cables for general flexible applications.
• IEC 60811 Series: Test methods for insulating and sheathing materials, supporting material compliance and reliability.
• IEC 60228: Conductors of insulated cables, specifying conductor constructions and resistance.

Practical Value

• Assurance of Quality and Safety
  Consistent adherence to IEC 60245-8 ensures cords are safe for high-flexibility use, reducing risks of failure or fire in demanding scenarios.

• Support for International Trade
  Harmonizing product design and testing with the requirements of IEC 60245-8 supports worldwide trade in flexible cords by minimizing compliance discrepancies.

• Manufacturing Guidance
  The standard guides manufacturers in selecting construction materials, braid coverage, and test procedures, helping reduce recalls and liability.

• Facilitation of Certification
  Provides a standardized reference for certifying bodies, simplifying conformity assessment and market access for new or replacement flexible cords.

By adhering to IEC 60245-8, manufacturers, suppliers, and users ensure flexible cords meet recognized global standards for safety, durability, and performance in high-flexibility applications.

Standards Content (Sample)

IEC 60245-8 ®
Edition 1.2 2012-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 8: Cords for applications requiring high flexibility

Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus égale à
450/750 V –
Partie 8: Câbles pour applications nécessitant une flexibilité élevée

IEC 60245-8:1998+A1:2003+A2:2011

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IEC 60245-8 ®
Edition 1.2 2012-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rubber insulated cables – Rated voltages up to and including 450/750 V –

Part 8: Cords for applications requiring high flexibility

Conducteurs et câbles isolés au caoutchouc – Tension assignée au plus égale à

450/750 V –
Partie 8: Câbles pour applications nécessitant une flexibilité élevée

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX CH
ICS 29.060.20 ISBN 978-2-88912-872-3

– 2 – 60245-8 © IEC:1998+A1:2003+A2:2011
CONTENTS
FOREWORD . 3

1 General . 5
1.1 Scope . 5
1.2 Normative references . 5
2 Spare . 6
3 Spare . 6
4 Spare . 6
5 EPR insulated and braided cord for applications requiring high flexibility . 6
5.1 Code designation . 6
5.2 Rated voltage . 6
5.3 Construction . 6
5.4 Tests . 7
5.5 Guide to use (informative) . 8

Annex A Spare . 10
Annex B (normative) Measurement of coverage by textile braid . 11

Figure B.1 – Textile braid . 12

Table 7 – Test current and tensile force exerted by weight . 8
Table 8 – Dimensions for type 60245 IEC 89 . 8
Table 9 – Tests for type 60245 IEC 89 . 9

60245-8 © IEC:1998+A1:2003+A2:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
–––––––––––
RUBBER INSULATED CABLES –
RATED VOLTAGES UP TO AND INCLUDING 450/750 V –

Part 8: Cords for applications requiring high flexibility

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
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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 60245-8 has been prepared by subcommittee 20B: Low-voltage
cables, of IEC technical committee 20: Electric cables.
This consolidated version of IEC 60245-8 consists of the first edition (1998) [documents
20B/259/FDIS and 20B/269/RVD], its amendment 1 (2003) [documents 20/580/CDV and
20/662/RVC] and its amendment 2 (2011) [documents 20/1261/FDIS and 20/1271/RVD].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 1.2.
A vertical line in the margin shows where the base publication has been modified by
amendments 1 an 2.
– 4 – 60245-8 © IEC:1998+A1:2003+A2:2011
IEC 60245 consists of the following parts, under the general title: Rubber insulated cables –
Rated voltages up to and including 450/750 V:
– Part 1:1994, General requirements
– Part 2:1994, Test methods
– Part 3:1994, Heat resistant silicone insulated cables
– Part 4:1994, Cords and flexible cables
– Part 5:1994, Lift cables
– Part 6:1994, Arc welding electrode cables
– Part 7:1994, Heat resistant ethylene-vinyl-acetate rubber insulated cables
– Part 8:1997, Cords for applications requiring high flexibility
Parts 3 to 8 are for particular types of cables and should be read in conjunction with part 1 and
part 2. Further parts may be added as other types are standardised.
Annexes A and B form an integral part of this standard.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability 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.
60245-8 © IEC:1998+A1:2003+A2:2011 – 5 –
RUBBER INSULATED CABLES –
RATED VOLTAGES UP TO AND INCLUDING 450/750 V –

Part 8: Cords for applications requiring high flexibility

1 General
1.1 Scope
This part of IEC 60245 details the particular specifications for rubber insulated and textile braid
covered cords of rated voltage 300/300 V, for use in applications where high flexibility is
required, for example iron cords.
All cables should comply with the appropriate requirements given in IEC 60245-1 and the
individual types of cables should each comply with the particular requirements of this part.
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.
NOTE The IEC 60811 series is currently undergoing a revision, which will lead to a restructuring of its parts. A
description of this, as well as a cross-reference table between the current and planned parts is given in IEC 60811-100.
IEC 60228, Conductors of insulated cables
IEC 60245-1:2003, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 1: General requirements
Amendment 1: 2007
IEC 60245-2:1994, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 2: Test methods
Amendment 1:1997
Amendment 2:1997
IEC 60719, 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 60811-1-1:1993, Common test methods for insulating and sheathing materials of electric
cables and optical cables – Part 1-1: Methods for general application – Measurement of
thickness and overall dimensions – Tests for determining the mechanical properties
Amendment 1:2001
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
Amendment 1:1989
Amendment 2:2000
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 and mineral oil immersion tests
Amendment 1:2001
– 6 – 60245-8 © IEC:1998+A1:2003+A2:2011
2 Spare
3 Spare
4 Spare
5 EPR insulated and braided cord for applications requiring high flexibility
5.1 Code designation
60245 IEC 89
5.2 Rated voltage
300/300 V
5.3 Construction
5.3.1 Conductor
Number of conductors: 2 or 3.
The conductors shall comply with the requirements given in Table IV, IEC 60228 for Class 6
conductors, except that the maximum resistance of conductors at 20 °C shall be increased by
3 %. The wires may be plain or tinned.
5.3.2 Separator
A separator of suitable material may be applied around each conductor.
5.3.3 Insulation
The insulation shall be an EPR compound of type IE 4 applied around each conductor.
The insulation shall be applied by extrusion.
The insulation thickness shall comply with the specified value given in Table 8, Column 2.
5.3.4 Fillers
The fillers shall be of textile material.
5.3.5 Assembly of cores and fillers
The cores and textile fillers shall be twisted together.
The maximum length of lay shall not exceed 7,5 times the diameter of the assembly of cores.
The direction of lay shall be the same for the conductors and for the cores.
A centre filler may be used.
5.3.6 Overall textile braid
The assembly of cores and fillers shall be covered by a textile braid:
− minimum number of threads: 60;

60245-8 © IEC:1998+A1:2003+A2:2011 – 7 –
− minimum crossings per metre: 700;
− minimum number of carriers: 24.
5.3.7 Overall diameter
The mean overall diameter shall be within the limits given in Table 8, Columns 3 and 4.
5.4 Tests
Compliance with the requirements of 5.3 shall be checked by inspection and by the tests given
in Table 9.
5.4.1 Checking of compliance with constructional provisions
For 5.3.5, the length of lay shall be determined by measuring the length of 10 pitches of a
sample and dividing this length by 10. The result is the length of lay of the laid-up cores.
5.4.2 Three pulley flexing test
This test shall be carried out in accordance with 3.5 of IEC 60245-2.
The number of cycles required shall be 2 000, i.e. 4 000 single movements and the test voltage
shall be as specified in Table 2.
5.4.3 Kink test
This test shall be carried out in accordance with 3.6 of IEC 60245-2.
5.4.3.1 Sample
In order to prevent the tensioning weight reaching the top of its guide and either hitting an end-
stop or rising clear of the guide, the following sample preparation shall be carried out:
a) The three twists shall be set in the sample and temporarily secured with adhesive tape
before presenting the sample to the equipment.
b) The ends of the sample shall be located in the fixing clamps and the adhesive tape shall
then be removed.
c) The fixing clamps shall be slowly moved apart to ensure that the sample achieves a
straight orientation when the clamps are fully extended, with the tensioning weight still in
the guide and satisfying the 50 mm lift specified in 3.6.4 of IEC 60245-2. When the fully
extended position is reached, the tensioning weight shall not make contact with any end-
stop in the guide.
d) If this straight orientation is not achieved, up to 30 slow test cycles shall be performed
during which the sample shall be manipulated so that the twists are distributed more evenly
over the sample length and so that a knot does not occur during the initial phase of the test
procedure.
5.4.3.2 Requirements
A total of 1 500 cycles.
– 8 – 60245-8 © IEC:1998+A1:2003+A2:2011
Table 7 – Test current and tensile force exerted by weight
Tension force exerted
Nominal cross-sectional by weight for cords:
Test current
area of conductor
A
2 2-core 3-core
mm
N N
0,75 6 15 20
1,0 10 20 25
1,5 16 25 30
5.5 Guide to use (informative)
Maximum conductor temperature in normal use: 60 °C.
NOTE Other guidelines are under consideration.
Table 8 – Dimensions for type 60245 IEC 89
1 2 3 4
Number and nominal Mean overall diameter
Thickness of insulation,
cross-sectional area
specified value
of conductors Lower limit Upper limit
mm
mm
mm mm
2 × 0,75 0,8 5,5 7,2
2 × 1 0,8 5,7 7,6
2 × 1,5 0,8 6,2 8,2
0,8 5,9 7,7
3 × 0,75
0,8 6,2 8,1
3 × 1
0,8 6,7 8,8
3 × 1,5
60245-8 © IEC:1998+A1:2003+A2:2011 – 9 –
Table 9 – Tests for type 60245 IEC 89
1 2 3 4 5
Test method described in
Ref
Tests Category of test
Clause/
No.
IEC
subclause
1 Electrical tests
1.1 Resistance of conductors T,S 60245-2 2.1
1.2 Voltage test on completed cable at 2 000 V T,S 60245-2 2.2
1.3 Voltage test on cores at 2 000 V R 60245-2 2.3

2 Provisions covering constructional and
dimensional characteristics
2.1 Checking of compliance with constructional T,S 60245-1 Inspection and
provisions manual test
2.2 Measurement of insulation thickness T,S 60245-2 1.9
2.3 Coverage by textile braid T,S 60245-8 Annex B
2.4 Measurement of overall dimensions:
2.4.1 - Mean value T,S 60245-2 1.11
2.4.2 - Ovality T,S 60245-2 1.11
2.5 Solderability test (plain conductors) T 60245-2 1.12

3 Mechanical properties of insulation
3.1 Tensile test before ageing T 60811-1-1 9.1
3.2 Tensile test after ageing in an air oven
...