Bsi bs en 60794 3 12 2013

BSI Standards PublicationOptical fibre cables Part 3-12: Outdoor cables — Detailed specification for duct and directly buried optical telecommunication cables for use in premises cablin

BSI Standards Publication

Optical fibre cables

Part 3-12: Outdoor cables — Detailed specification for duct and directly buried optical telecommunication cables for use

in premises cabling

National foreword

This British Standard is the UK implementation of EN 60794-3-12:2013 It is identical to IEC 60794-3-12:2012 It supersedes BS EN 60794-3-12:2006 which is withdrawn

The UK participation in its preparation was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/1, Optical fibres and cables

A list of organizations represented on this committee can be obtained on request to its secretary

This publication does not purport to include all the necessary provisions of

a contract Users are responsible for its correct application

© The British Standards Institution 2013 Published by BSI Standards Limited 2013 ISBN 978 0 580 60668 7

ICS 33.180.10

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2013

Amendments issued since publication

Amd No Date Text affected

BRITISH STANDARD

BS EN 60794-3-12:2013

NORME EUROPÉENNE

CENELEC

European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members

Ref No EN 60794-3-12:2013 E

English version

Optical fibre cables - Part 3-12: Outdoor cables - Detailed specification for duct and directly buried optical

telecommunication cables for use in premises cabling

(IEC 60794-3-12:2012)

Câbles à fibres optiques -

Partie 3-12: Câbles extérieurs -

Spécification particulière pour les câbles

optiques de télécommunication destinés à

être installés dans des conduites ou à être

directement enterrés et utilisés dans le

câblage de locaux

(CEI 60794-3-12:2012)

Lichtwellenleiterkabel - Teil 3-12: LWL-Außenkabel - Produktspezifikation für LWL-Fernmelde-Erd- und Röhrenkabel für

anwendungsneutrale Standortverkabelung (IEC 60794-3-12:2012)

This European Standard was approved by CENELEC on 2013-01-16 CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member

This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified

to the CEN-CENELEC Management Centre has the same status as the official versions

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom

EN 60794-3-12:2013 - 2 -

Foreword

The text of document 86A/1471/FDIS, future edition 2 of IEC 60794-3-12, prepared by SC 86A, "Fibres and cables", of IEC TC 86, "Fibre optics" was submitted to the IEC-CENELEC parallel vote and approved

by CENELEC as EN 60794-3-12:2013

The following dates are fixed:

• latest date by which the document has

to be implemented at national level by

publication of an identical national

standard or by endorsement

(dop) 2013-12-28

• latest date by which the national

standards conflicting with the

document have to be withdrawn

(dow) 2016-01-16

This document supersedes EN 60794-3-12:2006

EN 12:2013 includes the following significant technical changes with respect to EN 60794-3-12:2006:

– reference to ISO/IEC 24702;

– reference to Fibre B6 (EN 60793-2-50);

– reference to Fibre A1a.3 (EN 60793-2-10);

– reference to the OS2 Fibre as defined by ISO/IEC 11801

– reference to the OM4 Fibre as defined by ISO/IEC 11801

This International Standard is to be used in conjunction with EN 1-1, EN 1-2 and EN 60794-3-10

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights

Endorsement notice

The text of the International Standard IEC 60794-3-12:2012 was approved by CENELEC as a European Standard without any modification

BS EN 60794-3-12:2013

- 3 - EN 60794-3-12:2013

Annex ZA

(normative)

Normative references to international publications with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies

NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies

IEC 60793-2-10 2011 Optical fibres -

Part 2-10: Product specifications - Sectional specification for category A1 multimode fibres

EN 60793-2-10 2011

IEC 60793-2-50 2012 Optical fibres -

Part 2-50: Product specifications - Sectional specification for class B single-mode fibres

EN 60793-2-50 2013

IEC 60794-1-1 - Optical fibre cables -

Part 1-1: Generic specification - General EN 60794-1-1 -

IEC 60794-1-2 - Optical fibre cables -

Part 1-2: Generic specification - Basic optical cable test procedures

EN 60794-1-2 -

IEC 60794-3 - Optical fibre cables -

Part 3: Sectional specification - Outdoor cables

EN 60794-3 -

IEC 60794-3-10 - Optical fibre cables -

Part 3-10: Outdoor cables - Family specification for duct, directly buried and lashed aerial optical telecommunication cables

EN 60794-3-10 -

ISO/IEC 11801 - Information technology -

Generic cabling for customer premises - -

ISO/IEC 24702 - Information technology -

Generic cabling - Industrial premises - -

– 2 – 60794-3-12 © IEC:2012

CONTENTS

1 Scope 5

2 Normative references 5

3 General requirements 6

4 Particular requirements 6

General 6

4.1 MICE (mechanical, ingress, climatic and chemical and electromagnetic) 4.2 characteristics 6

Transmission requirements 7

4.3 Attenuation of cabled fibre 7

4.3.1 Fibre bandwidth requirements 7

4.3.2 Polarization mode dispersion (PMD) requirements 8

4.3.3 Bibliography 9

Table 1 – Multimode maximum cable attenuation coefficient (dB/km) 7

Table 2 – Single-mode maximum cable attenuation coefficient (dB/km) 7

Table 3 – Minimum multimode fibre bandwidth (MHz × km) 8

BS EN 60794-3-12:2013

60794-3-12 © IEC:2012 – 5 –

OPTICAL FIBRE CABLES – Part 3-12: Outdoor cables – Detailed specification for duct and directly buried optical

telecommunication cables for use in premises cabling

1 Scope

This part of IEC 60794 is a detailed specification for duct and directly buried optical telecommunication cables for use in premises cabling to ensure compatibility with ISO/IEC 11801 and ISO/IEC 24702 Those standards have requirements to ensure that models work for generic cabling and system performances Values in this standard support these models

The requirements of the family specification IEC 60794-3-10 are applicable to cables covered

by this standard Particular requirements detailed in Clause 4 of this standard either define a specific option relative to the requirements of IEC 60794-3-10 or define additional requirements

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies

NOTE These references complete the normative references already listed in the generic specifications IEC 60794-1-1 and IEC 60794-1-2, in the sectional specification IEC 60794-3 and in the family specification IEC 60794-3-10

IEC 60793-2-10:2011, Optical fibres − Part 2-10: Product specifications − Sectional specification for category A1 multimode fibres

IEC 60793-2-50:2012, 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 – Cross reference table for optical cable test procedures

IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Cross reference table for optical cable test procedures 1

IEC 60794-3, Optical fibre cables − Part 3: Sectional specification – Outdoor cables

IEC 60794-3-10, Optical fibre cables − Part 3-10: Outdoor cables − Family specification for duct, directly buried and lashed aerial optical telecommunication cables

ISO/IEC 11801, Information technology − Generic cabling for customer premises

_

1 IEC 60794-1-2:2003, Second edition has been withdrawn A third edition, with the revised title Optical fibre

cables - Part 1-2: Generic specification - Cross reference table for optical cable test procedures, is currently in

preparation

– 6 – 60794-3-12 © IEC:2012 ISO/IEC 24702, Information technology − Generic cabling – Industrial premises

3 General requirements

The cable shall comply with the family specification, IEC 60794-3-10, and meet the requirements which are defined in it, including requirements in the sectional specification, 60794-3 Particular requirements detailed in Clause 4 are optional, relative to the requirements of IEC 60794-3-10, or define additional requirements

The optical fibre contained in cables covered by this standard shall comply with one of the following standards, and meet the normative requirements defined within them as applicable: – IEC 60793-2-50:2008, Annex A (Single-mode fibre category B1.1);

– IEC 60793-2-50:2008, Annex C (Single-mode fibre category B1.3) ;

– IEC 60793-2-50:2008, Annex G (Single-mode fibre sub-categories B6 a1 and B6 a2)

– IEC 60793-2-10:2011, Annex A (Multimode fibre sub-category A1a, 50 µm core diameter);

– IEC 60793-2-10:2011, Annex B (Multimode fibre sub-category A1b, 62,5 µm core diameter)

To ensure compatibility with ISO/IEC 11801 and ISO/IEC 24702, optical performance level requirements are presented in terms of the performance classification codes as follows:

– OS1 Single-mode fibre categories B1.1, B1.3 or sub-categories B6 a1, B6 a2;

– OS2 Single-mode fibre category B1.3 or sub-categories B6 a1, B6 a2;

– OM1 Multimode fibre sub-categories A1a, A1b;

– OM2 Multimode fibre sub-categories A1a, A1b;

– OM3 Multimode fibre model A1a.2;

– OM4 Multimode fibre model A1a.3

NOTE These codes are informative from the perspective of the requirements defined in this detailed specification

4 Particular requirements

General

4.1

These requirements either define a specific option relative to the requirements of IEC 60794-3-10 or define additional requirements

MICE (mechanical, ingress, climatic and chemical and electromagnetic)

4.2

characteristics

Cables intended for installation in conformity with 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 Such tests are outside the scope of IEC 60794 cable specifications, and MICE criteria are not part of the requirements for IEC 60794 specifications The MICE tests may be the same as, similar to, or substantially different from, the tests required by IEC 60794 specifications Cables manufactured per IEC 60794 specifications may or may not meet the MICE criteria For supplemental discussion see IEC/TR 62362 [1]2

_

2 Numbers in square brackets refer to the Bibliography

BS EN 60794-3-12:2013

60794-3-12 © IEC:2012 – 7 –

Transmission requirements

4.3

Attenuation of cabled fibre

4.3.1

Depending on the fibre type, the attenuation coefficient of the cabled fibre shall be less than the maximum values in Table 1 for multimode fibres, and less than the maximum values in Table 2 for single-mode fibres, for the wavelengths as stated in Tables 1 and 2

The fibre category, sub-category or model as applicable shall be agreed between customer and supplier

Table 1 – Multimode maximum cable attenuation coefficient (dB/km)

Fibre Attenuation

coefficient at

850 nm

Attenuation coefficient at

1 300 nm

Performance code

Table 2 – Single-mode maximum cable attenuation coefficient (dB/km)

Fibre Wavelengths

nm Maximum

attenuation coefficient

Performance code

1 550 0,4 OS2

NOTE Optical fibre B6 a is recommended when it is expected that the optical fibre or the cable will have to support smaller bend radii than 25 mm

Fibre bandwidth requirements

4.3.2

There are no bandwidth requirements on single-mode fibre

For cables containing multimode fibres, the uncabled fibre shall be specified at one of performance levels defined in Table 3 in terms of minimum bandwidth (MHz × km), wavelength, and type of measurement

The fibre category, sub-category or model as applicable and performance level shall be agreed between customer and supplier

– 8 – 60794-3-12 © IEC:2012

Table 3 – Minimum multimode fibre bandwidth (MHz × km)

Fibre Nominal

core diameter

µm

Overfilled bandwidth

at 850 nm

Overfilled bandwidth

at 1 300 nm

Effective modal bandwidth

at 850 nm

Performance code

N/A Not applicable

Polarization mode dispersion (PMD) requirements

4.3.3

Cables containing single-mode fibres shall meet the PMD requirement of IEC 60794-3 This is given as a link design value, PMDQ, with a maximum of 0,5 ps/km1/2 allowed

BS EN 60794-3-12:2013

60794-3-12 © IEC:2012 – 9 –

Bibliography

[1] IEC/TR 62362, Selection of optical fibre cable specifications relative to mechanical, ingress, climatic or electromagnetic characteristics – Guidance

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