EN 60793-2-50:2016

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

IEC 60793-2-50:2015 is applicable to optical fibre categories B1.1, B1.2, B1.3, B2, B4, B5 and B6. A map illustrating the connection of IEC designations to ITU-T designations is shown in Annex I. These fibres are used or can be incorporated in information transmission equipment and optical fibre cables. Three types of requirements apply to these fibres: - general requirements, as defined in IEC 60793-2; - specific requirements common to the class B single-mode fibres covered in this standard and which are given in Clause 5; - particular requirements applicable to individual fibre categories or specific applications, which are defined in Annexes A to G. For some fibre categories (shown in the relevant family specifications), there are sub-categories that are distinguished on the basis of difference in transmission attribute specifications. The designations for these sub-categories are documented in the individual family specifications. This fifth edition cancels and replaces the fourth edition, published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - aligns the requirements with the ITU-T Recommendations G.654 (2012-10) and G.657 (2012-10); - adds a new sub-category B1.2_d; - modifies B6 sub-categories in terms of attenuation and chromatic dispersion coefficient. Keywords: information transmission equipment, optical fibre cables

Lichtwellenleiter - Teil 2-50: Produktspezifikationen - Rahmenspezifikation für Einmodenfasern der Kategorie B

Fibres optiques - Partie 2-50: Spécifications de produits - Spécification intermédiaire pour les fibres unimodales de classe B

L'IEC 60793-2-50:2015 est applicable aux fibres optiques des catégories B1.1, B1.2, B1.3, B2, B4, B5 et B6. Un tableau illustrant la correspondance des désignations IEC avec les Recommandations de l'UIT-T figure à l'Annexe I. Ces fibres sont utilisées ou peuvent être intégrées dans des équipements pour la transmission de l'information et dans des câbles à fibres optiques. Trois types d'exigences s'appliquent à ces fibres: - les exigences générales, qui sont définies dans l'IEC 60793-2; - des exigences spécifiques communes aux fibres unimodales de classe B, couvertes par la présente norme, et qui sont données dans l'Article 5; - des exigences particulières applicables à des catégories particulières de fibres ou à des applications données, qui sont définies dans les Annexes A à G. Pour certaines catégories de fibres (indiquées dans les spécifications de famille correspondantes), il existe des sous-catégories qui se distinguent les unes des autres par leurs différences de spécifications d'attributs de transmission. Les désignations pour ces sous-catégories sont documentées dans les spécifications de famille individuelles Cette cinquième édition annule et remplace la quatrième édition parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - alignement des exigences avec les Recommandations G.654 (2012-10) et G.657 (2012-10) de l'UIT-T; - ajout d'une nouvelle sous-catégorie B1.2_d; - modification des sous-catégories B6 en termes d'affaiblissement et de coefficient de dispersion chromatique. Mots clés: équipements pour la transmission de l'information, câbles à fibres optiques

Optična vlakna - 2-50. del: Specifikacije izdelka - Področna specifikacija za enorodna vlakna razreda B (IEC 60793-2-50:2015)

Ta del standarda IEC 60793 se uporablja za kategorije optičnih vlaken B1.1, B1.2, B1.3, B2, B4, B5 in B6. V dodatku I je prikaz povezav oznak IEC z oznakami ITU-T. Ta vlakna se uporabljajo ali se lahko vgradijo v opremo za prenos informacij in kable z optičnimi vlakni.
Za ta vlakna veljajo tri vrste zahtev:
– splošne zahteve, kot so opredeljene v standardu IEC 60793-2;
– posebne zahteve za enorodna vlakna razreda B, ki jih zajema ta standard in so navedene v točki 5;
– posebne zahteve, ki veljajo za posamezne kategorije vlaken ali posebne načine uporabe in so opredeljene v dodatkih A do G.
Pri nekaterih kategorijah vlaken (prikazano v ustreznih skupinskih specifikacijah) obstajajo podkategorije, ki se razlikujejo glede na razliko v specifikacijah atributa prenosa. Oznake za te podkategorije so navedene v posameznih skupinskih specifikacijah.

General Information

• Status: Withdrawn
• Publication Date: 18-Feb-2016
• Withdrawal Date: 23-Dec-2018
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: CLC/TC 86A - Optical fibres and optical fibre cables
• Drafting Committee: IEC/SC 86A - IEC_SC_86A
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 18-Jan-2022
• Completion Date: 18-Jan-2022
• Ref Project: SIST EN 60793-2-50:2016 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres (IEC 60793-2-50:2015)

Relations

• Replaces: EN 60793-2-50:2013 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres
• Effective Date: 28-Jan-2023
• Replaces: EN 60793-2-50:2013/AC:2014 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres
• Effective Date: 23-Jan-2023
• Replaced By: EN IEC 60793-2-50:2019 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres
• Effective Date: 05-Mar-2019

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2016
1DGRPHãþD
SIST EN 60793-2-50:2013
SIST EN 60793-2-50:2013/AC:2015
2SWLþQDYODNQDGHO6SHFLILNDFLMHL]GHOND3RGURþQDVSHFLILNDFLMD]D
HQRURGQDYODNQDUD]UHGD%,(&
Optical fibres - Part 2-50: Product specifications - Sectional specification for class B
single-mode fibres (IEC 60793-2-50:2015)
Ta slovenski standard je istoveten z: EN 60793-2-50:2016
ICS:
33.180.10 2SWLþQDYODNQDLQNDEOL Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60793-2-50

NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2016
ICS 33.180.10 Supersedes EN 60793-2-50:2013
English Version
Optical fibres - Part 2-50: Product specifications - Sectional
specification for class B single-mode fibres
(IEC 60793-2-50:2015)
Fibres optiques - Partie 2-50: Spécifications de produits - Lichtwellenleiter - Teil 2-50: Produktspezifikationen -
Spécification intermédiaire pour les fibres unimodales de Rahmenspezifikation für Einmodenfasern der Kategorie B
classe B (IEC 60793-2-50:2015)
(IEC 60793-2-50:2015)
This European Standard was approved by CENELEC on 2015-12-24. 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.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60793-2-50:2016 E
European foreword
The text of document 86A/1571/CDV, future edition 5 of IEC 60793-2-50, 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 60793-2-50:2016.
The following dates are fixed:
(dop) 2016-09-24
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2018-12-24
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 60793-2-50:2013.
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 60793-2-50:2015 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :
IEC 60794-2 NOTE Harmonized as EN 60794-2.
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 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60793-1 series Optical fibres - EN 60793-1 series
Part 1: Measurement methods and test
procedures
IEC 60793-1-1 -  Optical fibres - EN 60793-1-1 -
Part 1-1: Measurement methods and
test procedures - General and guidance
IEC 60793-1-20 -  Optical fibres - EN 60793-1-20 -
Part 1-20: Measurement methods and
test procedures - Fibre geometry
IEC 60793-1-21 -  Optical fibres - EN 60793-1-21 -
Part 1-21: Measurement methods and
test procedures - Coating geometry
IEC 60793-1-22 -  Optical fibres - EN 60793-1-22 -
Part 1-22: Measurement methods and
test procedures - Length measurement
IEC 60793-1-30 -  Optical fibres - EN 60793-1-30 -
Part 1-30: Measurement methods and
test procedures - Fibre proof test
IEC 60793-1-31 -  Optical fibres - EN 60793-1-31 -
Part 1-31: Measurement methods and
test procedures - Tensile strength
IEC 60793-1-32 -  Optical fibres - EN 60793-1-32 -
Part 1-32: Measurement methods and
test procedures - Coating strippability
IEC 60793-1-33 -  Optical fibres - EN 60793-1-33 -
Part 1-33: Measurement methods and
test procedures - Stress corrosion
susceptibility
IEC 60793-1-34 -  Optical fibres - EN 60793-1-34 -
Part 1-34: Measurement methods and
test procedures - Fibre curl
Publication Year Title EN/HD Year
IEC 60793-1-40 (mod) 2001 Optical fibres - EN 60793-1-40 2003
Part 1-40: Measurement methods and
test procedures - Attenuation
IEC 60793-1-42 -  Optical fibres - EN 60793-1-42 -
Part 1-42: Measurement methods and
test procedures - Chromatic dispersion
IEC 60793-1-44 -  Optical fibres - EN 60793-1-44 -
Part 1-44: Measurement methods and
test procedures - Cut-off wavelength
IEC 60793-1-45 -  Optical fibres - EN 60793-1-45 -
Part 1-45: Measurement methods and
test procedures - Mode field diameter
IEC 60793-1-46 -  Optical fibres - EN 60793-1-46 -
Part 1-46: Measurement methods and
test procedures - Monitoring of changes
in optical transmittance
IEC 60793-1-47 -  Optical fibres - EN 60793-1-47 -
Part 1-47: Measurement methods and
test procedures - Macrobending loss
IEC 60793-1-48 -  Optical fibres - EN 60793-1-48 -
Part 1-48: Measurement methods and
test procedures - Polarization mode
dispersion
IEC 60793-1-50 -  Optical fibres - EN 60793-1-50 -
Part 1-50: Measurement methods and
test procedures - Damp heat (steady
state) tests
IEC 60793-1-51 -  Optical fibres - EN 60793-1-51 -
Part 1-51: Measurement methods and
test procedures - Dry heat (steady state)
tests
IEC 60793-1-52 -  Optical fibres - EN 60793-1-52 -
Part 1-52: Measurement methods and
test procedures - Change of
temperature tests
IEC 60793-1-53 -  Optical fibres - EN 60793-1-53 -
Part 1-53: Measurement methods and
test procedures - Water immersion tests
IEC 60793-2 -  Optical fibres - EN 60793-2 -
Part 2: Product specifications - General
IEC 60794-3 -  Optical fibre cables - EN 60794-3 -
Part 3: Outdoor cables - Sectional
specification
IEC/TR 62316 -  Guidance for the interpretation of OTDR - -
backscattering traces
IEC 60793-2-50 ®
Edition 5.0 2015-11
INTERNATIONAL
STANDARD
colour
inside
Optical fibres –
Part 2-50: Product specifications – Sectional specification for class B

single-mode fibres
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.10 ISBN 978-2-8322-3023-7

– 2 – IEC 60793-2-50:2015 © IEC 2015
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Abbreviations and symbols . 9
5 Specifications . 9
5.1 General . 9
5.2 Dimensional requirements . 9
5.3 Mechanical requirements . 10
5.4 Transmission requirements . 11
5.5 Environmental requirements . 12
5.5.1 General . 12
5.5.2 Optical environmental requirements – Attenuation . 13
5.5.3 Mechanical environmental requirements . 13
Annex A (normative) Family specification for category B1.1 single-mode fibres . 15
A.1 General . 15
A.2 Dimensional requirements . 15
A.3 Mechanical requirements . 15
A.4 Transmission requirements . 16
A.5 Environmental requirements . 16
Annex B (normative) Family specification for category B1.2 single-mode fibres . 17
B.1 General . 17
B.2 Dimensional requirements . 17
B.3 Mechanical requirements . 17
B.4 Transmission requirements . 18
B.5 Environmental requirements . 18
Annex C (normative) Family specification for category B1.3 single-mode fibres . 19
C.1 General . 19
C.2 Dimensional requirements . 19
C.3 Mechanical requirements . 19
C.4 Transmission requirements . 20
C.5 Hydrogen ageing for category B1.3 . 20
C.6 Environmental requirements . 21
Annex D (normative) Family specification for category B2 single-mode fibres . 22
D.1 General . 22
D.2 Dimensional requirements . 22
D.3 Mechanical requirements . 22
D.4 Transmission requirements . 23
D.4.1 General . 23
D.4.2 Chromatic dispersion coefficient requirement for sub-category B2_a
fibres . 23
D.4.3 Chromatic dispersion coefficient requirement for sub-category B2_b
fibres . 24
D.5 Environmental requirements . 24
Annex E (normative) Family specification for category B4 single-mode fibres . 25
E.1 General . 25

IEC 60793-2-50:2015 © IEC 2015 – 3 –
E.2 Dimensional requirements . 25
E.3 Mechanical requirements . 25
E.4 Transmission requirements . 26
E.4.1 General .
...