EN 60793-2-50:2013

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

IEC 60793-2-50:2012 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. This fourth edition cancels and replaces the third edition, published in 2008, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - aligns the requirements with the relevant ITU-T Recommendations; - adds another option to the list of alternative primary coating diameter constructions in Table 2 and subsequent family specifications; - related modification of coating strip force in Tables 4 and 11; - removes the jumper cut-off wavelength in Table 5; - modifies B6 sub-categories; aligns B6-b MFD on B1.3 MFD. Keywords: information transmission equipment and 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

La CEI 60793-2-50:2012 est applicable aux fibres optiques des catégories B1.1, B1.2, B1.3, B2, B4, B5 et B6. Une table illustrant la correspondance des désignations CEI par rapport aux désignations 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. Cette quatrième édition annule et remplace la troisième édition, parue en 2008, et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - d'en aligner les exigences avec les Recommandations pertinentes de l'UIT-T; - d'ajouter une autre option à la liste des conceptions avec d'autres diamètres possibles concernant le revêtement primaire figurant dans le Tableau 2 et aux spécifications de famille qui en découlent; - ainsi que la modification associée concernant la force de dénudage figurant dans les Tableaux 4 et 11; - de supprimer la longueur d'onde de coupure des jarretières dans le Tableau 5; - de modifier les sous-catégories B6; - d'aligner le diamètre de champ de mode de la fibre B6-b sur celui de la B1.3. Mots clés: transmission de l'information et dans des câbles à fibres optiques

Optična vlakna - 2-50. del: Specifikacije izdelka - Področna specifikacija za enorodna vlakna razreda B

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 se uporabljajo tri vrste zahtev: – splošne zahteve, kot je določeno v IEC 60793-2; – posebne zahteve za enorodna vlakna razreda B, ki jih zajema ta standard in so navedene v točki 3; – posebne zahteve, ki se uporabljajo za posamezne kategorije vlaken ali posebne uporabe, ki so določene 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: 04-Jul-2013
• Withdrawal Date: 16-Jan-2016
• 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: 24-Dec-2018
• Completion Date: 24-Dec-2018
• Ref Project: SIST EN 60793-2-50:2013 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres

Relations

• Replaces: EN 60793-2-50:2008 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres
• Effective Date: 29-Jan-2023
• Replaced By: EN 60793-2-50:2016 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres
• Effective Date: 28-Jan-2023
• Corrected By: EN 60793-2-50:2013/AC:2014 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2013
2SWLþQDYODNQDGHO6SHFLILNDFLMHL]GHOND3RGURþQDVSHFLILNDFLMD]D
HQRURGQDYODNQDUD]UHGD%
Optical fibres - Part 2-50: Product specifications - Sectional specification for class B
single-mode fibres
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
Ta slovenski standard je istoveten z: EN 60793-2-50:2013
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
July 2013
EUROPÄISCHE NORM
ICS 33.180.10 Supersedes EN 60793-2-50:2008

English version
Optical fibres -
Part 2-50: Product specifications -
Sectional specification for class B single-mode fibres
(IEC 60793-2-50:2012)
Fibres optiques -  Lichtwellenleiter -
Partie 2-50: Spécifications de produits - Teil 2-50: Produktspezifikationen -
Spécification intermédiaire pour les fibres Rahmenspezifikation für Einmodenfasern
unimodales de classe B der Kategorie B
(CEI 60793-2-50:2012) (IEC 60793-2-50:2012)

This European Standard was approved by CENELEC on 2013-01-17. 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.

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 60793-2-50:2013 E
Foreword
The text of document 86A/1481/FDIS, future edition 4 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 60793-2-50:2013.

The following dates are fixed:
(dop) 2014-01-05
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2016-01-17
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60793-2-50:2008.

EN 60793-2-50:2008:
- aligns the requirements with the relevant ITU-T Recommendations;
- adds another option to the list of alternative primary coating diameter constructions in Table 2 and
subsequent family specifications; related modification of coating strip force in Tables 4 and 11;
- removes the jumper cut-off wavelength in Table 5;
- modifies B6 sub-categories;
- aligns B6-b MFD on B1.3 MFD.

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 60793-2-50:2012 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60794-2 NOTE Harmonised as EN 60794-2.
IEC 60794-3 NOTE Harmonised as EN 60794-3.

- 3 - EN 60793-2-50:2013
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.
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
IEC 60793-1-40 - Optical fibres - EN 60793-1-40 -
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

Publication Year Title EN/HD Year
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)

IEC 60793-1-51 - Optical fibres - EN 60793-1-51 -
Part 1-51: Measurement methods and test
procedures - Dry heat
IEC 60793-1-52 - Optical fibres - EN 60793-1-52 -
Part 1-52: Measurement methods and test
procedures - Change of temperature

IEC 60793-1-53 - Optical fibres - EN 60793-1-53 -
Part 1-53: Measurement methods and test
procedures - Water immersion
IEC 60793-2 - Optical fibres - EN 60793-2 -
Part 2: Product specifications - General

IEC 60793-2-50 ®
Edition 4.0 2012-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Optical fibres –
Part 2-50: Product specifications – Sectional specification for class B single-

mode fibres
Fibres optiques –
Partie 2-50: Spécifications de produits – Spécification intermédiaire pour les

fibres unimodales de classe B
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 33.180.10 ISBN 978-2-83220-545-7

– 2 – 60793-2-50  IEC:2012
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Abbreviations and symbols . 7
5 Specifications . 8
5.1 General . 8
5.2 Dimensional requirements . 8
5.3 Mechanical requirements . 9
5.4 Transmission requirements. 10
5.5 Environmental requirements . 11
5.5.1 General . 11
5.5.2 Optical environmental requirements – Attenuation . 12
5.5.3 Mechanical environmental requirements . 12
Annex A (normative) Family specification for category B1.1 single-mode fibres . 14
Annex B (normative) Family specification for category B1.2 single-mode fibres . 16
Annex C (normative) Family specification for category B1.3 single-mode fibres . 18
Annex D (normative) Family specification for category B2 single-mode fibres . 21
Annex E (normative) Family specification for category B4 single-mode fibres . 24
Annex F (normative) Family specification for category B5 single-mode fibres . 27
Annex G (normative) Family specification for category B6 single-mode fibres . 30
Annex H (informative) System design information for category B4 single-mode fibres . 33
Annex I (informative) Map from IEC nomenclature to ITU-T recommendations . 36
Bibliography . 37

Figure H.1 – Sub-category B4_d chromatic dispersion coefficient limits . 34
Figure H.2 – Sub-category B4_e chromatic dispersion coefficient limits . 35

Table 1 – Dimensional attributes and measurement methods . 8
Table 2 – Requirements common to all category B fibres . 9
Table 3 – Mechanical attributes and test methods . 9
Table 4 – Requirements common to all category B fibres . 10
Table 5 – Transmission attributes and measurement methods . 10
Table 6 – Requirements common to all category B fibres . 11
Table 7 – Additional attributes required in the family specifications . 11
Table 8 – Environmental exposure tests . 11
Table 9 – Attributes measured . 11
Table 10 – Change in attenuation for environmental tests . 12
Table 11 – Coating strip force for environmental tests . 12
Table 12 – Tensile strength for environmental tests . 13
Table 13 – Stress corrosion susceptibility for environmental tests . 13
Table A.1 – Dimensional requirements specific to category B1.1 fibres . 14

60793-2-50  IEC:2012 – 3 –
Table A.2 – Mechanical requirements specific to category B1.1 fibres . 14
Table A.3 – Transmission requirements specific to category B1.1 fibres . 15
Table B.1 – Dimensional requirements specific to category B1.2 fibres . 16
Table B.2 – Mechanical requirements specific to category B1.2 fibres . 16
Table B.3 – Transmission requirements specific to
...