IEC 60794-2-30:2008

Optical fibre cables - Part 2-30: Indoor cables - Family specification for ribbon cables

IEC 60794-2-30:2008 is a family specification which covers optical fibre ribbon cables for indoor use. The requirements of the sectional specification IEC 60794-2 are applicable to cables covered by this standard. This second edition cancels and replaces the first edition published in 2003. It constitutes a technical revision. The main changes are listed below:
- subclause 5.4 has been detailed according to the fibre type;
- Annex A has been added to show an example of cable construction;
- Annex B has been added which is a blank detail specification including Mice classification and requirements;
- a bibliography has been added. Keywords: optical fibre ribbon cables for indoor use
This publication is to be read in conjunction with IEC 60794-1-1:2011, IEC 60794-1-2:2003 and IEC 60794-2:2002.

Câbles à fibres optiques - Partie 2-30: Câbles intérieurs - Spécification de famille pour les câbles à rubans

La CEI 60794-2-30:2008 est une spécification de famille qui couvre les câbles à rubans de fibres optiques pour usage intérieur. Les exigences de la spécification intermédiaire CEI 60794-2 sont applicables aux câbles couverts par la présente norme. Cette deuxième édition annule et remplace la première édition publiée en 2003 dont elle constitue une révision technique. Les principales modifications sont présentées ci-après:
- le paragraphe 5.4 a été détaillé en fonction du type de fibre;
- l'Annexe A a été ajoutée pour montrer un exemple de construction de câble;
- l'Annexe B a été ajoutée. Elle constitue une spécification particulière cadre incluant les exigences et le classement MICE;
- une bibliographie a été ajoutée. Mots clés: câbles à rubans de fibres optiques pour usage intérieur
Cette publication doit être lue conjointement avec la IEC 60794-1-1:2011, la IEC 60794-1-2:2003, la IEC 60794-2:2002.

General Information

• Status: Published
• Publication Date: 07-Oct-2008
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: SC 86A - Fibres and cables
• Current Stage: DELPUB - Deleted Publication
• Start Date: 18-Mar-2019
• Completion Date: 13-Feb-2026

Relations

• Revised: IEC 60794-2-30:2019 - Optical fibre cables - Part 2-30: Indoor cables - Family specification for optical fibre ribbon cables for use in terminated cable assemblies
• Effective Date: 05-Sep-2023
• Revises: IEC 60794-2-30:2003 - Optical fibre cables - Part 2-30: Indoor cables - Family specification for optical fibre ribbon cables
• Effective Date: 05-Sep-2023

Overview

IEC 60794-2-30:2008 is an IEC family specification for optical fibre ribbon cables for indoor use. Intended for manufacturers, installers and specifiers, this second edition (2008) updates the 2003 edition and defines construction, test and performance requirements specific to ribbon-structured indoor cables. It is intended to be read together with IEC 60794-1-1, IEC 60794-1-2 and the sectional specification IEC 60794-2.

Key topics and technical requirements

• Scope and lifetime: Cables are designed for a predicted operating lifetime of at least 15 years; installed attenuation must meet customer-supplier agreement.
• Construction rules: Defines ribbon structure, sheath, strength/anti-buckling members, ripcord and fibre identification requirements. No fibre buffer or ruggedized fibre is assumed for this family specification.
• Fibre types: Supports multimode and single-mode fibres compliant with IEC 60793-2. Transmission requirements are detailed by fibre category (e.g., B1.1, B2, B4, B5 and multimode classes).
• Dimensions and geometry: Ribbon and cable geometric parameters and dimensional checks are specified to ensure compatibility with connectors, splicing and routing hardware.
• Mechanical tests: Prescribes tests and requirements for tensile performance, crush, impact, bending, repeated bending, bending under tension, low-temperature bending, flexing, torsion and kink behaviour.
• Environmental tests: Includes temperature cycling regimes and other environmental performance verifications.
• Fire performance: Requires appropriate fire performance characteristics for indoor use (see standard for applicable test methods and limits).
• Documentation and annexes:
  • Annex A: informative example of cable construction (cross-section).
  • Annex B: blank detail specification template including MICE classification and requirements for industrial premises.
  • Bibliography added to support normative references.

Applications and who uses this standard

IEC 60794-2-30 is directly applicable to:

• Cable manufacturers developing optical fibre ribbon cables for indoor installations (data centres, central offices, risers, campus buildings).
• System integrators and installers specifying indoor ribbon cable performance for high-density backbone and distribution links.
• Specification writers and procurement teams requiring consistent acceptance tests, dimensional compatibility and transmission criteria.
• Certification and test labs performing standardized mechanical, environmental and optical performance testing.

Practical benefits include predictable long-term attenuation, assured mechanical robustness for indoor routing and uniform fibre identification for splicing and connectorization workflows.

Related standards

• IEC 60794-1-1 (Generic specification – General)
• IEC 60794-1-2 (Generic specification – Basic optical cable test procedures)
• IEC 60794-2 (Sectional specification – Indoor cables)
• IEC 60793-2 / IEC 60793-1xx series (Optical fibre product and test specifications)

Keywords: optical fibre ribbon cables for indoor use, IEC 60794-2-30, ribbon cable specification, indoor optical cable standards, ribbon fiber cable testing.

Standards Content (Sample)

IEC 60794-2-30
Edition 2.0 2008-10
INTERNATIONAL
STANDARD
Optical fibre cables –
Part 2-30: Indoor cables – Family specification for ribbon cables

All rights reserved. Unless otherwise specified, 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
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IEC 60794-2-30
Edition 2.0 2008-10
INTERNATIONAL
STANDARD
Optical fibre cables –
Part 2-30: Indoor cables – Family specification for ribbon cables

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
S
ICS 33.180.10 ISBN 978-2-88910-292-1
– 2 – 60794-2-30 © IEC:2008(E)

CONTENTS
FOREWORD.4

1 Scope.6

2 Normative references .6

3 Construction .7

3.1 General .7

3.2 Optical fibres and primary coating .7
3.3 Buffer .7
3.4 Ruggedized fibre .7
3.5 Slotted core.7
3.6 Tube.7
3.7 Stranded loose tube .7
3.8 Ribbon structure.7
3.9 Strength and anti-buckling members .7
3.10 Ripcord .8
3.11 Sheath .8
3.12 Sheath marking .8
3.13 Identification.8
3.14 Example of cable construction.8
4 Dimensions .9
4.1 Optical fibres and primary coating .9
4.2 Ribbon structural geometry.9
4.3 Optical fibre ribbon cable.9
5 Tests .9
5.1 Dimensions .9
5.2 Mechanical requirements.9
5.2.1 Tensile performance.10
5.2.2 Crush .10
5.2.3 Impact .10
5.2.4 Bend.10
5.2.5 Repeated bending .10
5.2.6 Bending under tension.11

5.2.7 Bending at low temperature .11
5.2.8 Flexing .11
5.2.9 Torsion .11
5.2.10 Kink.11
5.3 Environmental requirements .11
5.3.1 Temperature cycling .11
5.4 Transmission requirements .12
5.4.1 Single-mode optical fibres .12
5.4.2 Single-mode dispersion unshifted (B1.1) optical fibre .13
5.4.3 Single mode dispersion unshifted (B1.2) optical fibre.13
5.4.4 Single mode dispersion unshifted (B1.3) optical fibre.13
5.4.5 Single mode dispersion shifted (B2) optical fibre .13
5.4.6 Single mode non-zero dispersion (B4) optical fibre .14
5.4.7 Single mode wide band non-zero dispersion (B5) optical fibre .14

60794-2-30 © IEC:2008(E) – 3 –

5.4.8 Multimode fibres .14

5.5 Fire Performance.14

Annex A (informative) Example of cable construction.16

Annex B (informative) Family Specification Indoor cables – optical fibre ribbon cables.17

Bibliography.22

Figure 1 – Example of identification by means of colour coding and positioning .8

Figure A.1 – Example of cross-section of a four-fibre ribbon cable.16

Table 1 – Dimensions of optical fibre ribbon cables .9
Table 2 – Temperature cycling conditions .12
Table 3 – Common single-mode fibre requirements .12
Table 4 – Cabled attenuation requirements for B1.1 optical fibre .13
Table 5 – Cabled attenuation requirements for B1.2 optical fibre .13
Table 6 – Cabled attenuation requirements for B1.3 optical fibre .13
Table 7 – Cabled attenuation requirements for B2 optical fibre .13
Table 8 – Cabled attenuation requirements for B4 optical fibre .14
Table 9 – Cabled attenuation requirements for B5 optical fibre .14
Table 10 – Requirements for multimode (A1a and A1b) optical fibre .14
Table B.1 – Cable description .17
Table B.2 – Cable element.18
Table B.3 – Cable construction .18
Table B.4 – Installation and operating conditions .19
Table B.5 – Tests applicable.19
Table B.6 – Specifications for Industrial Premises installations as defined in
ISO/IEC 24702.20

– 4 – 60794-2-30 © IEC:2008(E)

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
OPTICAL FIBRE CABLES –
Part 2-30: Indoor cables –
Family specification for ribbon cables

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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 60794-2-30 has been prepared by sub-committee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2003. It constitutes a
technical revision. The main changes are listed below:
a) subclause 5.4 has been detailed according to the fibre type;
b) Annex A has been added to show an example of cable construction;
c) Annex B has been added which is a blank detail specification including Mice classification
and requirements;
d) a bibliography has been added
This standard shall be used in conjunction with IEC 60794-1-1 and IEC 60794-1-2, and
IEC 60794-2.
60794-2-30 © IEC:2008(E) – 5 –

The text of this standard is based on the following documents:

FDIS Report on voting
86A/1233/FDIS 86A/1244/RVD
Full information on the voting for the approval of this standard 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 60794 series, published under the general title Optical fibre cables,
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.
A bilingual version of this publication may be issued at a later date.

– 6 – 60794-2-30 © IEC:2008(E)

OPTICAL FIBRE CABLES –
Part 2-30: Indoor cables –
Family specification for ribbon cables

1 Scope
This part of IEC 60794 is a family specification which covers optical fibre ribbon cables for
indoor use. The requirements of the sectional specification IEC 60794-2 are applicable to
cables covered by this standard.
Clause B.2 contains requirements that supersede the normal requirements in case the cables
are intended to be used in installations governed by the MICE table of ISO/IEC 24702.
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.
These documents complete the normative references already listed in the generic
specification (IEC 60794-1-1, Clause 2, and IEC 60794-1-2, Clause 2) or in the sectional
specification (IEC 60794-2, Clause 2).
IEC 60304:1982, Standard colours for insulation for low-frequency cables and wires.
IEC 60793-1-20, Optical fibres – Part 1-20: Measurement methods and test procedures –
Fibre geometry
IEC 60793-1-40, Optical fibres – Part 1-40: Measurement methods and test procedures –
Attenuation
IEC 60793-1-44, Optical fibres – Part 1-44: Measurement methods and test procedures –
Cutoff wavelength
IEC 60793-2, Optical fibres – Part 2: Product specifications – General

IEC 60793-2-10, Optical fibres – Part 2-10, Product specifications – Sectional specification for
category A1 multimode fibres
IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General 86A/1054/NP
IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test
procedures
IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification
IEC 60794-3, Optical fibre cables – Part 3: Sectional specification – Outdoor cables
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

60794-2-30 © IEC:2008(E) – 7 –

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 temperatures.

3 Construction
3.1 General
In addition to the constructional requirements in IEC 60794-2, the following considerations

apply to indoor ribbon cables.

The cable shall be designed and manufactured for a predicted operating lifetime of at least 15

years. In this context, the attenuation of the installed cable at the operational wavelength(s)
shall not exceed values agreed between the customer and the supplier. The materials in the
cable shall not present a health hazard within its intended use.
There shall be no fibre splice in a delivery length unless otherwise agreed by the customer
and the supplier.
It shall be possible to identify each individual fibre throughout the length of the cable.
3.2 Optical fibres and primary coating
Multimode or single-mode optical fibres meeting the requirements of IEC 60793-2 shall be
used.
3.3 Buffer
None.
3.4 Ruggedized fibre
None.
3.5 Slotted core
None.
3.6 Tube
None.
3.7 Stranded loose tube
None.
3.8 Ribbon structure
The ribbon structure shall conform to 6.5 and 8.2.3 of IEC 60794-3. Fibres shall be formed
into units of typically two, four, six, eight, or twelve fibres each. The fibres within the units
shall remain parallel and not cross over. An example of a ribbon construction is shown in
Figure A.1
3.9 Strength and anti-buckling members
The optical fibre ribbon cable may incorporate a tensile strength member. The strength
member can be a layer of suitable material, longitudinally or helically applied, and/or may be
embedded in the overall sheath.

– 8 – 60794-2-30 © IEC:2008(E)

3.10 Ripcord
None.
3.11 Sheath
The optical fibre ribbon shall be uniformly covered with a protective sheath generally as
shown in Figure A.1.
3.12 Sheath marking
If required, the cable shall be marked as agreed between the customer and the supplier.

3.13 Identification
The coated fibre shall be distinguishable by means of colour coding and positioning. For
example (see Figure 1):
a) a fibre ribbon has an identification coloured fibre on one side and a sub-identification
coloured one on the other side;
b) the identification and the sub-identification coloured fibres are the first and the last in the
fibre ribbon, respectively;
c) any colour of the identification colours group is different from that of the sub-identification
colours group;
d) the colour types and the order used for identification and sub-identification should be
agreed between the customer and the supplier. The colours of the other fibres shall be
agreed by the customer and/or the supplier;
e) the colour range used is similar to the first 12 colours described in Table 1 of IEC 60794-
2, i.e. blue, yellow, red, white, green, violet, orange, grey, turquoise, black, brown and
pink.
Ribbon coating
Optical fibre
1 2 3 n-1
n
...
Sub-identification colour code
Identification colour code
NOTE 1 The identification colour enables each fibre ribbon to be identified individually within a group of ribbons.
NOTE 2 The sub-identification colour shows the ribbon group.
NOTE 3 The identification and the sub-identification colour in a ribbon enables each fibre to be ident
...

IEC 60794-2-30 ®
Edition 2.0 2008-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 2-30: Indoor cables – Family specification for ribbon cables

Câbles à fibres optiques –
Partie 2-30: Câbles intérieurs – Spécification de famille pour les câbles à rubans

All rights reserved. Unless otherwise specified, 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
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International Standards for all electrical, electronic and related technologies.

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IEC 60794-2-30 ®
Edition 2.0 2008-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 2-30: Indoor cables – Family specification for ribbon cables

Câbles à fibres optiques –
Partie 2-30: Câbles intérieurs – Spécification de famille pour les câbles à rubans

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX S
ICS 33.180.10 ISBN 978-2-83220-606-5

– 2 – 60794-2-30  IEC:2008
CONTENTS
FOREWORD . 4

1 Scope . 6

2 Normative references . 6

3 Construction . 7

3.1 General . 7

3.2 Optical fibres and primary coating . 7
3.3 Buffer . 7
3.4 Ruggedized fibre . 7
3.5 Slotted core . 7
3.6 Tube. 7
3.7 Stranded loose tube . 7
3.8 Ribbon structure . 7
3.9 Strength and anti-buckling members . 7
3.10 Ripcord . 8
3.11 Sheath . 8
3.12 Sheath marking . 8
3.13 Identification. 8
3.14 Example of cable construction . 8
4 Dimensions . 9
4.1 Optical fibres and primary coating . 9
4.2 Ribbon structural geometry. 9
4.3 Optical fibre ribbon cable. 9
5 Tests . 9
5.1 Dimensions . 9
5.2 Mechanical requirements . 9
5.2.1 Tensile performance . 10
5.2.2 Crush . 10
5.2.3 Impact . 10
5.2.4 Bend. 10
5.2.5 Repeated bending . 10

5.2.6 Bending under tension . 11
5.2.7 Bending at low temperature . 11
5.2.8 Flexing . 11
5.2.9 Torsion . 11
5.2.10 Kink . 11
5.3 Environmental requirements . 11
5.3.1 Temperature cycling . 11
5.4 Transmission requirements . 12
5.4.1 Single-mode optical fibres . 12
5.4.2 Single-mode dispersion unshifted (B1.1) optical fibre . 13
5.4.3 Single mode dispersion unshifted (B1.2) optical fibre . 13
5.4.4 Single mode dispersion unshifted (B1.3) optical fibre . 13
5.4.5 Single mode dispersion shifted (B2) optical fibre . 13
5.4.6 Single mode non-zero dispersion (B4) optical fibre . 14

60794-2-30  IEC:2008 – 3 –
5.4.7 Single mode wide band non-zero dispersion (B5) optical fibre . 14

5.4.8 Multimode fibres . 14

5.5 Fire Performance. 14

Annex A (informative) Example of cable construction . 16

Annex B (informative) Family Specification Indoor cables – optical fibre ribbon cables . 17

Bibliography . 22

Figure 1 – Example of identification by means of colour coding and positioning . 8

Figure A.1 – Example of cross-section of a four-fibre ribbon cable . 16

Table 1 – Dimensions of optical fibre ribbon cables . 9
Table 2 – Temperature cycling conditions . 12
Table 3 – Common single-mode fibre requirements . 12
Table 4 – Cabled attenuation requirements for B1.1 optical fibre . 13
Table 5 – Cabled attenuation requirements for B1.2 optical fibre . 13
Table 6 – Cabled attenuation requirements for B1.3 optical fibre . 13
Table 7 – Cabled attenuation requirements for B2 optical fibre . 13
Table 8 – Cabled attenuation requirements for B4 optical fibre . 14
Table 9 – Cabled attenuation requirements for B5 optical fibre . 14
Table 10 – Requirements for multimode (A1a and A1b) optical fibre . 14
Table B.1 – Cable description . 17
Table B.2 – Cable element . 18
Table B.3 – Cable construction . 18
Table B.4 – Installation and operating conditions . 19
Table B.5 – Tests applicable . 19
Table B.6 – Specifications for Industrial Premises installations as defined in
ISO/IEC 24702 . 20

– 4 – 60794-2-30  IEC:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
OPTICAL FIBRE CABLES –
Part 2-30: Indoor cables –
Family specification for ribbon cables

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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 60794-2-30 has been prepared by sub-committee 86A: Fibres and
cables, of IEC technical committee 86: Fibre optics.
This second edition cancels and replaces the first edition published in 2003. It constitutes a
technical revision. The main changes are listed below:
a) subclause 5.4 has been detailed according to the fibre type;
b) Annex A has been added to show an example of cable construction;
c) Annex B has been added which is a blank detail specification including Mice classification
and requirements;
d) a bibliography has been added.
This standard shall be used in conjunction with IEC 60794-1-1 and IEC 60794-1-2, and
IEC 60794-2.
60794-2-30  IEC:2008 – 5 –
This bilingual version (2013-01) corresponds to the monolingual English version, published in
2008-10.
The text of this standard is based on the following documents:

FDIS Report on voting
86A/1233/FDIS 86A/1244/RVD
Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of IEC 60794 series, published under the general title Optical fibre cables,
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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
considered to be useful for the correct
that it contains colours which are
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – 60794-2-30  IEC:2008
OPTICAL FIBRE CABLES –
Part 2-30: Indoor cables –
Family specification for ribbon cables

1 Scope
This part of IEC 60794 is a family specification which covers optical fibre ribbon cables for
indoor use. The requirements of the sectional specification IEC 60794-2 are applicable to
cables covered by this standard.
Clause B.2 contains requirements that supersede the normal requirements in case the cables
are intended to be used in installations governed by the MICE table of ISO/IEC 24702.
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.
These documents complete the normative references already listed in the generic
specification (IEC 60794-1-1, Clause 2, and IEC 60794-1-2, Clause 2) or in the sectional
specification (IEC 60794-2, Clause 2).
IEC 60304:1982, Standard colours for insulation for low-frequency cables and wires.
IEC 60793-1-20, Optical fibres – Part 1-20: Measurement methods and test procedures –
Fibre geometry
IEC 60793-1-40, Optical fibres – Part 1-40: Measurement methods and test procedures –
Attenuation
IEC 60793-1-44, Optical fibres – Part 1-44: Measurement methods and test procedures –
Cutoff wavelength
IEC 60793-2, Optical fibres – Part 2: Product specifications – General

IEC 60793-2-10, Optical fibres – Part 2-10: Product specifications – Sectional specification for
category A1 multimode fibres
IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General 86A/1054/NP
IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test
procedures
IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification
IEC 60794-3, Optical fibre cables – Part 3: Sectional specification – Outdoor cables
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

60794-2-30  IEC:2008 – 7 –
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 temperatures.

3 Construction
3.1 General
In addition to the constructional requirements in IEC 60794-2, the following considerations

apply to indoor ribbon cables.

The cable shall be designed and manufactured for a predicted operating lifetime of at least 15

years. In this context, the attenuation of the installed cable at the operational wavelength(s)
shall not exceed values agreed between the customer and the supplier. The materials in the
cable shall not present a health hazard within its intended use.
There shall be no fibre splice in a delivery length unless otherwise agreed by the customer
and the supplier.
It shall be possible to identify each individual fibre throughout the length of the cable.
3.2 Optical fibres and primary coating
Multimode or single-mode optical fibres meeting the requirements of IEC 60793-2 shall be
used.
3.3 Buffer
None.
3.4 Ruggedized fibre
None.
3.5 Slotted core
None.
3.6 Tube
None.
3.7 Stranded loose tube
None.
3.8 Ribbon structure
The ribbon structure shall conform to 6.5 and 8.2.3 of IEC 60794-3. Fibres shall be formed
into units of typically two, four, six, eight, or twelve fibres each. The fibres within the units
shall remain parallel and not cross over. An example of a ribbon construction is shown in
Figure A.1
3.9 Strength and anti-buckling members
The optical fibre ribbon cable may incorporate a tensile strength member. The strength
member can be a layer of suitable material, longitudinally or helically applied, and/or may be
embedded in the overall sheath.

– 8 – 60794-2-30  IEC:2008
3.10 Ripcord
None.
3.11 Sheath
The optical fibre ribbon shall be uniformly covered with a protective sheath generally as
shown in Figure A.1.
3.12 Sheath marking
If required, the cable shall be marked as agreed between the customer and the supplier.

3.13 Identification
The coated fibre shall be distinguishable by means of colour coding and positioning. For
example (see Figure 1):
a) a fibre ribbon has an identification coloured fibre on one side and a sub-identification
coloured one on the other side;
b) the identification and the sub-identification coloured fibres are the first and the last in the
fibre ribbon, respectively;
c) any colour of the identification colours group is different from that of the sub-identification
colours group;
d) the colour types and the order used for identification and sub-identification should be
agreed between the customer and the supplier. The colours of the other fibres shall be
agreed by the customer and/or the supplier;
e) the colour range used is similar to the first 12 colours described in Table 1 of IEC 60794-
2, i.e. blue, yellow, red, white, green, violet, orange, grey, turquoise, black, brown and
pink.
Ribbon coating
Optical fibre
1 2 3 n-1
n
...
Sub-identification colour code
Identification colour code
NOTE 1 The identification colour enables each fibre ribbon to be identified individually within a group of ribbons.
NOTE 2 The sub-identification colour shows the ribbon group.
NOTE 3 The identification and the sub-identification colour in a ribbon enables each fibre to be identified
individually within the ribbon.
Figure 1 – Example of identification by means of colour coding and positioning
Other methods of identification are under consideration.
3.14 Example of cable construction
An example of a ribbon cable construction is shown in Figure A.1. Other configurations are
not precluded if they meet the mechanical, environmental and transmission requirements
given in this specification.
60794-2-30  IEC:2008 – 9 –
4 Dimensions
4.1 Optical fibres and primary coating

The dimensions of the individual primary coated fibres in the finished product shall be in

accordance with IEC 60793-2.
4.2 Ribbon structural geometry

The ribbon geometry shall conform to 8.2.3 of IEC 60794-3.

4.3 Optical fibre ribbon cable
Unless otherwise specified, the dimensions and the structural geometry of optical fibre ribbon
cables shall be as shown in Table 1.
Table 1 – Dimensions of optical fibre ribbon cables
Number of fibres Optical fibre ribbon cables
Width Height
mm mm
Nominal Maximum Nominal Maximum
tolerance tolerance
2 3,0 - 3,5 2,3 - 2,7
± 0,4 ± 0,3
4 3,0 - 3,5 2,3 - 2,7
± 0,4 ± 0,3
6 3,5 - 4,0 ± 0,4 2,3 - 2,7 ± 0,3
8 2,5 - 4,5 ± 0,4 0,9 - 3,0 ± 0,3
12 3,5 - 5,5 0,9 - 3,0
± 0,4 ± 0,3
NOTE These dimensions apply to the ribbon cable including the sheath and any
strength members.
5 Tests
Compliance with the relevant detail specification requirements shall be verified by carrying out
tests selected from the following subclauses. It is not intended that all the tests shall be
carried out; the tests which are to be performed and the frequency of testing shall be agreed
between the customer and the supplier.

5.1 Dimensions
The dimensions and structural geometry of optical fibre ribbon can be verified with a type test
described in 8.2.3 of IEC 60794-3 to establish and assure proper control of the ribbon
manufacturing process. Once the process is established, and in order to ensure functional
performance, the dimensions of ribbons may be controlled and verified, for final inspection
purpose, with a dial gauge as described in Method G4 of IEC 60794-1-2. The size of optical
fibre ribbon cable, width and height, shall be measured in accordance with the methods of
IEC 60811-1-1.
5.2 Mechanical requirements
Some of the following tests can be performed on a short sample length of optical fibre ribbon
cable which is still an integral part of a longer length. For testing, the force shall be applied on
the flat sides of the cable. Thus it becomes possible to detect permanent changes in
attenuation. The wavelength and maximum increase in attenuation change can be agreed
between the customer and the supplier.

– 10 – 60794-2-30  IEC:2008
5.2.1 Tensile performance
Method: IEC 60794-1-2-E1A
Diameter of chuck drums not lower

than the minimum dynamic bending

and transfer devices: diameter specified for the cable.

Velocity of transfer device: either 100 mm/min or 100N/min

Load: 200 N applied for 5 min

Length of sample: sufficient to achieve the desired accuracy of

measurement of attenuation and shall be agreed

between the customer and the supplier

Requirement: no change in attenuation after the test, and there
shall be no damage to the cable elements
5.2.2 Crush
Method: IEC 60794-1-2-E3
Force: 500 N
Duration: 1 min
Length between test locations: 500 mm
Requirement: no change in attenuation after the test, and there
shall be no damage to the cable elements
NOTE The force is applied on the flat sides of the cable.
5.2.3 Impact
Method: IEC 60794-1-2-E4
Radius of striking surface: 12,5 mm
Impact energy: 1,0 J
Number of impacts: at least 3, each separated at least 500 mm
Requirement: no fibre breakage
NOTE The force is applied on the flat sides of the cable.
5.2.4 Bend
Method: IEC 60794-1-2-E11A
Mandrel diameter: 50 mm
Number of turns per helix: 6
Number of cycles: 10
Requirements: no fibre breakage
NOTE The bending is applied in the vertical direction to the flat sides of the cable.
5.2.5 Repeated bending
Method: IEC 60794-1-2-E6
Bending radius: 100 mm
Number of cycles: 300
Mass of weights: 2 kg
Requirement: no fibre breakage
NOTE The bending is applied in the vertical direction to the flat sides of the cable.

60794-2-30  IEC:2008 – 11 –
5.2.6 Bending under tension
None.
5.2.7 Bending at low temperature

Method: IEC 60794-1-2-E11A (see also IEC 60811-1-4,

Clause 8)
Bending radius: 10 times cable diameter (for flat cables, the diameter

is the minor dimension)
Number of cycles: 2
Test temperature: 0 °C, –10 °C or –15 °C depending on application and
customer requirements
Number of turns per helix: according to Clause 8 of IEC 60811-1-4
Requirements: in addition to the requirement of Clause 8 of
IEC 60811-1-4, no fibre shall break during the test
5.2.8 Flexing
Method: IEC 60794-1-2-E8
Number of cycles: 300
Pulley diameter: 100 mm
Mass of weight: 2 kg
Requirement: no fibre breakage
NOTE The bending is applied in the vertical direction to the flat sides of the cable.
5.2.9 Torsion
Method: IEC 60794-1-2-E7
Number of cycles: 20
Distance between fixed and rotation clamp: 250 mm
Tension load: 20 N
Requirement: no fibre breakage
5.2.10 Kink
None.
5.3 Environmental requirements
5.3.1 Temperature cycling
Method: IEC 60794-1-2-F1
– 12 – 60794-2-30  IEC:2008
Table 2 – Temperature cycling conditions

Temperature T Temperature T
A B
a) 0 °C 50 °C
b) –5 °C 50 °C
c)
–20 °C 60 °C
d)
–40 °C 60 °C
NOTE Condition a), b), c) or d) should be selected depending
on application and customer requirements, for example,
condition c) is appropriate for applications to ISO/IEC 11801.

Period t : sufficient so that the cable has reached, and
stabilised to, the specified temperature
Number of cycles: 2
Length of sample: sufficient to achieve the desired accuracy of
measurement of attenuation
Requirement: the wavelength and maximum increase in
attenuation shall be agreed between the customer
and the supplier
5.4 Transmission requirements
The transmission requirements shall be verified in accordance with IEC 60793-2 and shall be
agreed between the customer and the supplier. Maximum cable attenuation shall comply with
5.1 of IEC 60794-1-1.
NOTE 1 625 nm performance is optional depending upon agreement between the customer and the supplier.
5.4.1 Single-mode optical fibres
Table 3 – Common single-mode fibre requirements
Characteristics IEC 60794-2 Family Test methods Remarks
Clause/subclause requirements
Uncabled optical fibre 4.1 IEC 60793-2
Cabled fibre cut-off 4.4 λ < λ IEC 60793-1-44
cc
Wavelength operational
Fibre colouring 4.1 IEC 60304 Visual inspection
Outer diameter including 4.1 As IEC 60793-2 IEC 60793-1-20
colouring
Attenuation discontinuities 4.4 ≤ 0,10 dB IEC 60793-1-40
at 1 550 nm
60794-2-30  IEC:2008 – 13 –
5.4.2 Single-mode dispersion unshifted (B1.1) optical fibre

Table 4 – Cabled attenuation requirements for B1.1 optical fibre

Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)

Clause/subclause requirements (12)
(10)
Attenuation coefficient 4.4 According to DS IEC 60793-1-40
(cabled fibres)
at 1 310nm
≤ 0,40 dB/km
at 1 550 nm
≤ 0,30 dB/km
≤ 0,30 dB/km
at 1 625 nm
5.4.3 Single-mode dispersion unshifted (B1.2) optical fibre
Table 5 – Cabled attenuation requirements for B1.2 optical fibre
Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)
Clause/subclause requirements (12)
(10)
Attenuation coefficient 4.4 Acc. DS IEC 60793-1-40
(cabled fibres)
at 1 550 nm
≤ 0,25 dB/km
at 1 625 nm
≤ 0,40 dB/km
5.4.4 Single-mode dispersion unshifted (B1.3) optical fibre
Table 6 – Cabled attenuation requirements for B1.3 optical fibre
Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)
Clause/subclause requirements (12)
(10)
Attenuation coefficient 4.4 According to DS IEC 60793-1-40
(cabled fibres)
at 1 310 to 1 625 nm  ≤ 0,40 dB/km

at 1 383 nm
≤ 0,40 dB/km
at 1 550 nm
≤ 0,30 dB/km
5.4.5 Single-mode dispersion shifted (B2) optical fibre

Table 7 – Cabled attenuation requirements for B2 optical fibre
Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)
Clause/subclause requirements (12)
(10)
Attenuation coefficient 4.4 According to DS IEC 60793-1-40
(cabled fibres)
at 1 310 nm ≤ 0,50 dB/km
at 1 550 nm
≤ 0,30 dB/km
at 1 625 nm
≤ 0,40 dB/km
– 14 – 60794-2-30  IEC:2008
5.4.6 Single-mode non-zero dispersion (B4) optical fibre

Table 8 – Cabled attenuation requirements for B4 optical fibre

Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)

Clause/subclause requirements (12)
(10)
Attenuation coefficient 4.4 According to DS IEC 60793-1-40
(cabled fibres)
at 1 550 nm
≤ 0,30 dB/km
at 1 625 nm
≤ 0,40 dB/km
5.4.7 Single-mode wide band non-zero dispersion (B5) optical fibre
Table 9 – Cabled attenuation requirements for B5 optical fibre
Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)
Clause/subclause requirements (12)
(10)
Attenuation coefficient 4.4 According to DS IEC 60793-1-40
(cabled fibres)
at 1 460 nm
≤ 0,40 dB/km
at 1 550 nm
≤ 0,30 dB/km
at 1 625 nm
≤ 0,40 dB/km
5.4.8 Multimode fibres
Table 10 – Requirements for multimode (A1a and A1b) optical fibre
Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)
Clause/subclause requirements (12)
(10)
Uncabled optical fibre 4.1 IEC 60793-2-10
Attenuation coefficient 4.4 According to DS IEC 60793-1-40
(cabled fibres)
at 850 nm 3,5 dB/km
at 1 300 nm 1,5 dB/km
Attenuation discontinuities 4.4 IEC 60793-1-40
≤ 0,20 dB
at 850 and 1 300 nm
Fibre colouring 4.1 IEC 60304 Visual inspection

Outer diameter including 4.1 As IEC 60793-2 IEC 60793-1-20
colouring
5.5 Fire Performance
IEC/TR 62222 provides guidance and recommendations for the requirements and test
methods for the fire performance of communication cables when installed in buildings. The
recommendations relate to typical applications and installation practices, and an assessment
of the fire hazards presented. Applicable legislation and regulation are also taken into
account.
IEC/TR 62222 references several IEC fire performance test methods and also other test
methods that may be required by local or national legislation and regulation. The tests to be
applied, and the requirements, shall be agreed between the customer and supplier taking into

60794-2-30  IEC:2008 – 15 –
account the fire hazard presented by the end use application of the patchcord assembly in

which the cable is intended to be used.

– 16 – 60794-2-30  IEC:2008
Annex A
(informative)
Example of cable construction
Optical fibre ribbon
Tensile strength member
Sheath
Width
Figure A.1 – Example of cross-section of a four-fibre ribbon cable

Height
60794-2-30  IEC:2008 – 17 –
Annex B
(informative)
Family specification indoor cables –

Optical fibre ribbon cables
B.1 Blank detail specification

B.1.1 Cable description
Table B.1 – Cable description
(1) Prepared by (2) Document No :
Issue :
Date :
(3) Available from : (4) Generic Specification : IEC 60794-1-1
Sectional Specification : IEC 60794-2
(5) Additional references : ISO/IEC 24702 if required
(6) Cable description :
(7) Cable construction :
Optical fibres
Range of fibre count
Modularity
Construction Additional remarks
- optical fibres and primary coating
- ribbon
- strength and anti-buckling members
Outer sheath
- material
- minimum wall thickness
Marking identification
- customer requirement
- identification of manufacturer

(8) Application information :
Application (indoor)
Maximum outer diameter (d) or width and height mm
Rated maximum tensile load N
Minimum bending radius for operation mm or nxd
Temperature range :
- transport and storage
°C
- installation °C
- operation °C
Manufacturing cable length
- typical m
- nominal/tolerances : –0 +1 %

– 18 – 60794-2-30  IEC:2008
B.1.2 Cable element
Table B.2 – Cable element
Characteristics (9) IEC 60794-2 Family (11) Test methods Remarks (13)

Clause/subclause requirements (12)

(10)
Optical fibres and primary 3.2 According to DS

coating
Buffer 3.3 According to DS Visual

inspection
Ribbon 3.8 According to DS IEC 60794-1-2

G2, G3 or G4
Strength and anti-buckling 3.9 According to DS Visual

members inspection
B.1.3 Cable construction
Table B.3 – Cable construction
Characteristics (9) IEC 60794-2 Family (11) Test methods (12) Remarks (13)
Clause/subclause requirements
(10)
Cable core According to DS Visual inspection
Strength member 3.9 According to DS Visual inspection
- longitudinal
- helical
- embedded in the
sheath
Sheath 3.11
- material According to DS
- minimum sheath According to DS IEC 60811-1-1
thickness
- width and height According to DS IEC 60811-1-1
- optional protection According to DS
- abrasion resistance According to DS IEC 60794-1-2,
Method E2A
Sheath marking 3.12
- configuration, According to DS Visual inspection
dimensions
- abrasion resistance According to DS IEC 60794-1-2, Steel needle diameter d
Method E2B = 1,0 mm
Load : 4 N
Cable length
60794-2-30  IEC:2008 – 19 –
B.1.4 Installation and operating conditions

Table B.4 – Installation and operating conditions

Characteristics (9) IEC 60794-2 Family (11) Test methods (12) Remarks (13)

Clause/subclause requirements
(10)
General requirements
Bend of cable element According to DS IEC 60794-1-2,

Method G1
Ribbons : 3.8
- dimensions According to DS IEC 60794-3,
8.2.3.1
- separability of According to DS IEC 60794-1-2,
individual fibres Method G5
from ribbon or according to DS
- ribbon stripping According to DS
- torsion According to DS IEC 60794-1-2,
Method G6
B.1.5 Mechanical, environmental and fire performance tests
Table B.5 – Tests applicable
Characteristics (9) IEC 60794-2 Family (11) Test methods (12) Remarks (13)
Clause/subclause requirements
(10)
Tensile performance 4.2.1 See 5.2.1 IEC 60794-1-2,
Method E1A
Crush 4.2.2 See 5.2.2 IEC 60794-1-2,
Method E3
Impact 4.2.3 See 5.2.3 IEC 60794-1-2
Method E4
Bending 4.2.4 See 5.2.4 IEC 60794-1-2,
Method E11A
Repeated bending 4.2.5 See 5.2.5 IEC 60794-1-2,
Method E6
Bending at low 4.2.7 See 5.2.7 IEC 60794-1-2
temperature Method E11A
Flexing 4.2.8 See 5.2.8 IEC 60794-1-2,
Method E8
Torsion 4.2.9 See 5.2.9 IEC 60794-1-2,
Method E7
Temperature cycling 4.3.1 See 5.3.1 IEC 60794-1-2,
Method F1
Fire performance 4.5 See 5.5 IEC/TR 62222

– 20 – 60794-2-30  IEC:2008
B.2 Additional requirements for cables subject to the MICE environmental

classification (ISO/IEC 24702 and related standards)

B.2.1 General
Cables intended for installation in ISO/IEC 24702 and related standards may require the

specification of additional tests to ensure their suitability in the applicable environments

defined by the Mechanical, Ingress, Climatic and Chemical, and Electromagnetic (MICE)
classification. For supplemental guidance see IEC/TR 62362. Required tests may be selected
from Table B.6 below.
B.2.2 Applicable additional specifications for industrial premises installations as
defined in ISO/IEC 24702
Table B.6 – Specifications for industrial premises installations
as defined in ISO/IEC 24702
Characteristics Test method
MICE classification of ISO/IEC 24702
and related standards
a, b c
(see and below for further information)
MECHANICAL M M M
1 2 3
a
Shock/bump
–2 –2 –2
Peak acceleration 40 ms 100 ms 250 ms IEC 60721-3-3
a
Vibration
1,5 mm 7,0 mm 15,0 mm IEC 60721
Displacement amplitude (2 Hz to
9 Hz)
–2 –2 –2
Acceleration amplitude (9 Hz to 5 ms 20 ms 50 ms IEC 60721
500 Hz)
Tensile force (see NOTE 1) As required As required As required IEC 60794-1-2,
Method E1
C
Crush 45 N/25 mm 1 100 N/150 mm 2 200 N/150 mm IEC 60794-1-2
Method E3
Impact 1 J 10 J 30 J IEC 60794-1-2,
Method E4
Bending (see NOTE 1) As required As required As required IEC 60794-1-2,
Method E6
Flexing (see NOTE 1) As required As required As required IEC 60794-1-2,
Method E.8
Torsion (see NOTE 1) As required As required As required IEC 60794-1-2,
Method E7
INGRESS I I I
1 2 3
b
Immersion N/A Intermittent liquid jet Intermittent liquid jet IEC 60794-1-2,
≤12,5 l/min ≤12,5 l/min Method F3
≥ 6,3 mm/jet ≥ 6,3 mm/jet
> 2,5 m distance > 2,5 m distance
and immersion
≤ 1m for ≤ 30 min
CLIMATIC and CHEMICAL C C C
1 2 3
Temperature cycling –10 °C to +60 °C –25 °C to +70 °C –40 °C to +70 °C IEC 60794-1-2,
(ambient and rate of change) Method F1
b –2 –2 –2
Solar radiation 700 Wm 1 120 Wm 1 120 Wm IEC 60721-1
b
Humidity 5 % to 85 % (non- 5 % to 95 % 5 % to 95 % IEC 60721-3-3
condensing) (condensing) (condensing)
b
–6 –6 –6
Liquid pollution contaminants
Concentration × 10 Concentration × 10 Concentration × 10

b
Sodium chloride (salt/sea water) 0 IEC 60721-1
< 0,3 < 0,3
60794-2-30  IEC:2008 – 21 –
Characteristics MICE classification of ISO/IEC 24702 Test method

and related standards
a, b c
(see and below for further information)

b
Oil (dry-air concentration) 0
< 0,005 < 0,5
(for oil types see NOTE 1)
a
4 4
Sodium stearate (soap) None IEC 24702
> 5 × 10 aqueous > 5 × 10 aqueous

non-gelling gelling
b
Gaseous pollution contaminants Mean/peak Mean/peak Mean/peak

–6 –6 –6
concentration × 10 concentration × 10 concentration × 10

a
Hydrogen sulphide IEC 60654-4
<0,003/<0,01 <0,05/<0,5 <10/<50

a
Sulphur dioxide <0,01/<0,03 <0, 1/<0,3 <5/<15 IEC 60654

a
Sulphur trioxide (ffs) IEC 60654
<0,01/<0,03 <0, 1/<0,3 <5/<15
b
IEC 60654
Chlorine wet (>50 % humidity) <0,0005 <0,005/<0,03 <0,05/<0,3

/<0,001
b
IEC 60654
Chlorine dry (<50 % humidity) <0,002/<0,01 <0,02/<0,1 <0,2/<1,0
b
Hydrogen chloride IEC 60654
0/<0,06 <0,06/<0,3 <0,6/<3,0
b
Hydrogen fluoride IEC 60654
<0,001/<0,005 <0,01/<0,05 <0,1/<1,0
b
Ammonia IEC 60654
<1,0/<5,0 <10,0/<50,0 <50/<250
b
Oxides of nitrogen IEC 60654
<0,05/<0,1 <0,5/<1,0 <5/<10
b
Ozone <0,002/<0,005 <0,025/<0,05 <0,1/<1 IEC 60654
ELECTROMAGNETIC E E E
1 2 3
(for cables containing
electrically conductive
elements)
Electrostatic disch
...