Optical fibre cables - Part 6-30: Indoor-outdoor cables - Family specification for weatherised indoor cables

IEC 60794-6-30:2020 is a family specification covering optical fibre indoor cables that are deployed in short length (≤ 10 m) outdoor environments. These cables generally possess the characteristics associated with indoor cable designs having the appropriate fire performance and flexibility that makes them suitable for use in premises. Because of its predicted use outdoors, stability against environmental attack, for example UV radiation and humidity (see IEC 60794-6:2020, Table 1), is important. Typical application spaces include the extension of a short length of indoor cable outside the building such as to a NAP mounted outside the building at the house wall.

Câbles à fibres optiques - Partie 6-30: Câbles intérieurs/extérieurs - Spécification de famille pour les câbles intérieurs résistants aux intempéries

IEC 60794-6-30:2020 est une spécification de famille qui couvre les câbles intérieurs à fibres optiques déployés dans des environnements extérieurs sur de courtes longueurs (≤ 10 m). Ces câbles possèdent généralement les caractéristiques associées à des conceptions de câbles intérieurs présentant la souplesse et le comportement au feu appropriés pour permettre leur utilisation dans des locaux. En raison de leur utilisation attendue en extérieur, une stabilité contre les agressions environnementales, par exemple le rayonnement ultraviolet (UV) et l'humidité (voir Tableau 1 de l'IEC 60794-6:2020), est importante. Les applications types comprennent la prolongation à l'extérieur d'un bâtiment d'une courte longueur de câble intérieur, par exemple pour rallier un NAP monté sur un mur à l'extérieur du bâtiment.

General Information

Status
Published
Publication Date
24-Sep-2020
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
25-Sep-2020
Ref Project

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IEC 60794-6-30
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 6-30: Indoor-outdoor cables – Family specification for weatherised indoor
cables
Câbles à fibres optiques –
Partie 6-30: Câbles intérieurs/extérieurs – Spécification de famille pour
les câbles intérieurs résistants aux intempéries
IEC 60794-6-30:2020-09(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60794-6-30
Edition 1.0 2020-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibre cables –
Part 6-30: Indoor-outdoor cables – Family specification for weatherised indoor
cables
Câbles à fibres optiques –
Partie 6-30: Câbles intérieurs/extérieurs – Spécification de famille pour
les câbles intérieurs résistants aux intempéries
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-8909-9

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60794-6-30:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms, definitions and abbreviated terms ........................................................................ 7

3.1 Terms and definitions .............................................................................................. 7

3.2 Abbreviated terms ................................................................................................... 7

4 General specifications ..................................................................................................... 7

4.1 Optical fibres .......................................................................................................... 7

4.2 Cable elements ....................................................................................................... 7

5 Specifications for weatherised indoor cables – Construction ............................................ 8

6 Details of family specifications and test conditions for weatherised indoor cables ............ 8

6.1 General ................................................................................................................... 8

6.1.1 Referenced cable specifications ...................................................................... 8

6.1.2 Test criteria ..................................................................................................... 8

6.1.3 Applicable tests ............................................................................................... 8

6.2 Mechanical tests ................................................................................................... 10

6.2.1 Tensile performance ...................................................................................... 10

6.2.2 Abrasion ........................................................................................................ 11

6.2.3 Crush ............................................................................................................ 12

6.2.4 Impact ........................................................................................................... 12

6.2.5 Repeated bending ......................................................................................... 13

6.2.6 Torsion .......................................................................................................... 13

6.2.7 Bend .............................................................................................................. 13

6.2.8 Bending under tension ................................................................................... 14

6.2.9 Bending at low temperature ........................................................................... 14

6.2.10 Flexing .......................................................................................................... 14

6.2.11 Kink ............................................................................................................... 15

6.2.12 Rip cord functional test .................................................................................. 15

6.3 Environmental ....................................................................................................... 15

6.3.1 Temperature cycling ...................................................................................... 15

6.3.2 Water penetration .......................................................................................... 16

6.3.3 UV resistance ................................................................................................ 16

6.3.4 Environmental stress cracking ....................................................................... 17

6.3.5 Compound flow .............................................................................................. 17

6.3.6 Bleeding and evaporation .............................................................................. 17

6.3.7 Material compatibility ..................................................................................... 17

6.3.8 Ageing ........................................................................................................... 17

6.4 Cable element tests .............................................................................................. 18

6.4.1 Ribbon strippability ........................................................................................ 18

6.4.2 Ribbon tear (separability) .............................................................................. 18

6.4.3 Ribbon dimensions and geometry .................................................................. 18

6.4.4 Ribbon torsion ............................................................................................... 18

6.4.5 Ribbon residual twist ..................................................................................... 18

6.4.6 Tube kinking .................................................................................................. 19

6.4.7 Bend test for optical cable elements .............................................................. 19

6.4.8 Stripping force stability of cabled fibres ......................................................... 19

---------------------- Page: 4 ----------------------
IEC 60794-6-30:2020 © IEC 2020 – 3 –

6.5 Other tests ............................................................................................................ 19

6.5.1 Fire performance ........................................................................................... 19

6.5.2 Electrical continuity........................................................................................ 19

6.5.3 Thickness of non-metallic sheath ................................................................... 19

6.5.4 Overall dimensions ........................................................................................ 20

Annex A (informative) Examples of weatherised indoor cables ............................................. 21

Annex B (informative) Blank detail specification and minimum requirements ........................ 22

Bibliography .......................................................................................................................... 23

Figure A.1 – Weatherised, reinforced simplex indoor cable ................................................... 21

Figure A.2 – Weatherised mini-breakout indoor cable ........................................................... 21

Figure A.3 – Weatherised jelly free central loose tube indoor cable....................................... 21

Table 1 – Tests applicable for mechanical and environmental performance of

weatherised indoor cables ...................................................................................................... 9

Table 2 – Low and high temperatures ................................................................................... 16

---------------------- Page: 5 ----------------------
– 4 – IEC 60794-6-30:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 6-30: Indoor-outdoor cables –
Family specification for weatherised indoor 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

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6) All users should ensure that they have the latest edition of this publication.

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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 60794-6-30 has been prepared by subcommittee SC86A: Fibres and

cables, of IEC technical committee 86: Fibre optics.
The text of this International Standard is based on the following documents:
FDIS Report on voting
86A/2038/FDIS 86A/2049/RVD

Full information on the voting for the approval of this International Standard can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 60794 series, published under the general title Optical fibre cables,

can be found on the IEC website.
---------------------- Page: 6 ----------------------
IEC 60794-6-30:2020 © IEC 2020 – 5 –

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 7 ----------------------
– 6 – IEC 60794-6-30:2020 © IEC 2020
OPTICAL FIBRE CABLES –
Part 6-30: Indoor-outdoor cables –
Family specification for weatherised indoor cables
1 Scope

This part of IEC 60794 is a family specification covering optical fibre indoor cables that are

deployed in short length (≤ 10 m) outdoor environments. These cables generally possess the

characteristics associated with indoor cable designs having the appropriate fire performance

and flexibility that makes them suitable for use in premises. Because of its predicted use

outdoors, stability against environmental attack, for example UV radiation and humidity (see

IEC 60794-6:2020, Table 1), is important. Typical application spaces include the extension of

a short length of indoor cable outside the building such as to a NAP mounted outside the

building at the house wall.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 60332-1 (all parts), Tests on electric and optical fibre cables under fire conditions – Part 1:

Test for vertical flame propagation for a single insulated wire or cable

IEC 60332-3 (all parts), Tests on electric and optical fibre cables under fire conditions – Part 3:

Test for vertical flame spread of vertically-mounted bunched wires or cables

IEC 60793-2-10:2019, Optical fibres – Part 2-10: Product specifications – Sectional

specification for category A1 multimode fibres

IEC 60793-2-50:2018, Optical fibres – Part 2-50: Product specifications – Sectional

specification for class B single-mode fibres
IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General

IEC 60794-1-21, Optical fibre cables – Part 1-21: Generic specification – Basic optical cable

test procedures – Mechanical test methods

IEC 60794-1-22:2017, Optical fibre cables – Part 1-22: Generic specification – Basic optical

cable test procedures – Environmental test methods

IEC 60794-1-23, Optical fibre cables – Part 1-23: Generic specification – Basic optical cable

test procedures – Cable element test methods

IEC 60794-1-24, Optical fibre cables – Part 1-24: Generic specification – Basic optical cable

test procedures – Electrical test methods

IEC 60794-1-31:2018, Optical fibre cables – Part 1-31: Sectional specification for cable element

– optical fibre ribbon
---------------------- Page: 8 ----------------------
IEC 60794-6-30:2020 © IEC 2020 – 7 –

IEC 60794-1-215, Optical fibre cables – Part 1-215: Generic specification – Basic optical cable

test procedures – Environmental test methods – Cable external freezing test, Method F15

IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification

IEC 60794-2-20:2013, Optical fibre cables – Part 2-20: Indoor cables – Family specification for

multi-fibre optical cables

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

IEC 60811-202, Electric and optical fibre cables – Test methods for non-metallic materials –

Part 202: General tests – Measurement of thickness of non-metallic sheath

IEC 60811-203, Electric and optical fibre cables – Test methods for non-metallic materials –

Part 203: General tests – Measurement of overall dimensions

IEC 60811-406, Electric and optical fibre cables – Test methods for non-metallic materials –

Part 406: Miscellaneous tests – Resistance to stress cracking of polyethylene and

polypropylene compounds

ISO 4892-2:2013, Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-

arc lamps
3 Terms, definitions and abbreviated terms

For the purposes of this document, the terms, definitions and abbreviated terms given in

IEC 60794-1-1 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 Terms and definitions
No terms and definitions are listed in this document.
3.2 Abbreviated terms
NAP network access point
HFFR halogen free flame retardant
4 General specifications
4.1 Optical fibres

The optical fibre shall conform to the requirements of IEC 60793-2-10 or IEC 60793-2-50. The

fibre type shall be agreed between the customer and supplier. The cabled fibre shall conform

to IEC 60794-2.
4.2 Cable elements
The cable elements shall conform to IEC 60794-2.
---------------------- Page: 9 ----------------------
– 8 – IEC 60794-6-30:2020 © IEC 2020
5 Specifications for weatherised indoor cables – Construction

The cable design can be derived from a typical indoor cable design according to the product

specifications described in IEC 60794-2. The specific demand related to UV resistance and

resistance against humidity will require the appropriate selection of the jacket material in

combination with other material and/or design considerations. See Annex A for examples of

weatherised indoor cables.
6 Details of family specifications and test conditions for weatherised indoor
cables
6.1 General
6.1.1 Referenced cable specifications

The specific specifications will depend on the specific design of the indoor cable which was

selected as basis for the design of the weatherised indoor cable. The appropriate family

specifications from IEC 60794-2 (all parts) should be referenced for mechanical

(IEC 60794-2-10:2011, 5.3, IEC 60794-2-20:2013, 4.3, and IEC 60794-2-30:2019, 5.3) and

environmental specifications (IEC 60794-2-10:2011, 5.4, IEC 60794-2-20:2013, 4.4, and

IEC 60794-2-30:2019, 5.4). Additional design characteristics for outdoor exposure to UV

radiation should reference IEC 60794-1-22, method F14. Test methods are defined in the

generic specifications IEC 60794-1-21, IEC 60794-1-22, IEC 60794-1-23 and IEC 60794-1-24.

6.1.2 Test criteria
6.1.3 Applicable tests

The cable types defined in these referenced IEC 60794-2 family specifications are simplex and

duplex cables, multi-fibre cables, and ribbon cables. Family requirements and test conditions

in 6.2 through 6.5 apply to these types, as noted. If no differentiation is stated in the subclause,

they apply to all cable types.

Compliance with the specification shall be verified by carrying out tests selected from Table 1.

It is not intended that all tests in Table 1 be carried out in all cases. The tests to be applied and

the frequency of testing shall be agreed between the customer and supplier.
---------------------- Page: 10 ----------------------
IEC 60794-6-30:2020 © IEC 2020 – 9 –
Table 1 – Tests applicable for mechanical and environmental
performance of weatherised indoor cables
Characteristics Detail Test methods Remarks
requirements
Mechanical tests Typically required of most cable
designs
Tensile See 6.2.1 IEC 60794-1-21,
performance
method E1
Abrasion See 6.2.2 IEC 60794-1-21, Resistance of sheath markings
method E2B
Crush See 6.2.3 IEC 60794-1-21, Plate/plate crush test
method E3A
Impact See 6.2.4 IEC 60794-1-21,
method E4
Repeated bending See 6.2.5 IEC 60794-1-21,
method E6
Torsion See 6.2.6 IEC 60794-1-21,
method E7
Bend See 6.2.7 IEC 60794-1-21, Default method E11A
method E11
Bending under See 6.2.8 IEC 60794-1-21,
tension
method E18A, procedure 1
Bending at low
See 6.2.9 IEC 60794-1-21, method E11A
temperature
Flexing See 6.2.10 IEC 60794-1-21, method E8
Kink See 6.2.11 IEC 60794-1-21, method E10 Cable kink
Rip cord functional See 6.2.12 IEC 60794-1-21, method E25
Environmental
tests
Temperature See 6.3.1 IEC 60794-1-22,
cycling
method F1
Water penetration See 6.3.2 IEC 60794-1-22, If specified
method F5
UV resistance See 6.3.3 IEC 60794-1-22,
method F14 (method ISO 4892-
Environmental See 6.3.4 IEC 60811-406 Highly filled thermoplastics
stress cracking (e.g. FRNC materials) are
sensitive to stress cracking.
The test was developed for PE
and PP and thus shall be
adapted.
Compound flow See 6.3.5 IEC 60794-1-22, method F16 If filled tubes are used
(drip)
Bleeding and See 6.3.6 IEC 60794-1-23, method G9
evaporation
Material See 6.3.7 IEC 60794-1-219, method F19,
compatibility should be applied
Ageing See 6.3.8 IEC 60794-1-22 method F9
---------------------- Page: 11 ----------------------
– 10 – IEC 60794-6-30:2020 © IEC 2020
Characteristics Detail Test methods Remarks
requirements
Cable freezing - IEC 60794-1-215, method F15A Not included
or F15B Not generally an issue for
indoor cables. If required, see
IEC 60794-6-10:2020, 6.3.6 for
guidance.
Cable element
tests
Ribbon strippability See 6.4.1 IEC 60794-1-23, If ribbons are used
method G10B
Ribbon tear See 6.4.2 IEC 60794-1-23, If ribbons are used
(separability)
method G5
Ribbon dimensions See 6.4.3 IEC 60794-1-23, If ribbons are used
and geometry
method G2
Ribbon torsion See 6.4.4 IEC 60794-1-23, If ribbons are used
method G6
Ribbon residual See 6.4.5 IEC 60794-1-23, If ribbons are used
twist
method G8
Tube kinking See 6.4.6 IEC 60794-1-23, If tubes are used.
method G7
Bend for optical See 6.4.7 IEC 60794-1-23, method G1
cable elements
Stripping force See 6.4.8 IEC 60794-1-23, method G10A
stability of cabled
optical fibres
Other tests
Fire performance See 6.5.1 IEC 60332-1 Regional legal requirements
(all parts) shall be fulfilled. For more
details, see IEC TR 62222.
IEC 60332-3
(all parts)
IEC 61034
IEC 60754-2

Electrical continuity See 6.5.2 IEC 60794-1-24, method H3 For cables with metallic

elements
Thickness of non- See 6.5.3 IEC 60811-202
metallic sheath
Overall dimensions See 6.5.4 IEC 60811-203
6.2 Mechanical tests
6.2.1 Tensile performance
a) Family specifications
While the cable is under short-term tensile load (T , rated tensile load),
• the axial fibre strain shall be < 60 % of the fibre proof strain, and
• the attenuation shall be measured and recorded. Any required max. change of
attenuation shall be agreed between customer and supplier.
, residual load),
While the cable is under the long-term tensile load (T
• the axial fibre strain shall be:

– < 20 % of fibre proof test, for fibre proof tested to ≤ 1 % strain (e.g., 0,69 GPa, 0,2 %

absolute strain), and
---------------------- Page: 12 ----------------------
IEC 60794-6-30:2020 © IEC 2020 – 11 –

– < 17 % of fibre proof test, for fibre proof tested to greater than 1 % to 2 % strain (e.g.,

0,69 GPa to 1,38 GPa, 0,34 % absolute strain for 2 % proof tested fibre);

NOTE For fibres proof tested at levels above 1 % strain, the safe long-term load will not scale linearly

with proof strain, so a lower percentage of the proof stain is applicable. There is no agreement for strain

limits for proof tests above 2 % strain.
• the change in attenuation shall be:
– single-mode fibre: no change;
– multimode fibre: ≤ 0,2 dB.

Under visual examination without magnification, there shall be no damage to the sheath or

to the cable elements after the test.
b) Test conditions (simplex and duplex cables)
Method: IEC 60794-1-21, method E1
Load: 75 N applied for 10 min fo
...

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