EN 60794-2-20:2010
(Main)Optical fibre cables - Part 2-20: Indoor cables - Family specification for multi-fibre optical distribution cables
Optical fibre cables - Part 2-20: Indoor cables - Family specification for multi-fibre optical distribution cables
IEC 60794-2-20:2008(E) is part of the IEC 60794 family specification covering multi-fibre optical distribution cables for indoor use. The requirements of the sectional specification IEC 60794-2 are applicable to cables covered by this standard. The main changes from the previous edition include: - cable crushto be measured both during and after load; - cable torsion test length parameter correlated to cable outer diameter; - cable description and construction blank detail specification annexes; - MICE environment blank detail specification is addressed in Annex B.
Lichtwellenleiterkabel - Teil 2-20: LWL-Innenkabel - Familienspezifikation für Mehrfaserverteilerkabel
Câbles à fibres optiques - Partie 2-20: Câbles intérieurs - Spécification de famille pour les câbles optiques multifibres de distribution
Optični kabli - 2-20. del: Optični kabli za notranjo uporabo - Skupinska specifikacija za večvlakenske optične distribucijske kanale (IEC 60794-2-20:2008)
Ta del IEC 60794 je skupinska specifikacija, ki zajema večvlakenske optične distribucijske kanale za notranjo uporabo. Zahteve presečnih specifikacij IEC 60794-2 veljajo za kable, ki jih zajema ta standard. Dodatek B vsebuje zahteve, ki nadomestijo običajne zahteve v primeru, da so kabli namenjeni za uporabo v napravi, ki jo ureja MICE tabela ISO/IEC 24702 (tj. Industrijski objekti).
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.XSLQVNDLichtwellenleiterkabel - Teil 2-20: LWL-Innenkabel - Familienspezifikation für Mehrfaserverteilerkabel (IEC 60794-2-20:2008)Câbles à fibres optiques - Partie 2-20: Câbles intérieurs - Spécification de famille pour les câbles optiques multifibres de distribution (CEI 60794-2-20:2008)Optical fibre cables - Part 2-20: Indoor optical fibre cables - Family specification for multi-fibre optical distribution cables (IEC 60794-2-20:2008)33.180.10Fibres and cablesICS:Ta slovenski standard je istoveten z:EN 60794-2-20:2010SIST EN 60794-2-20:2010en01-marec-2010SIST EN 60794-2-20:2010SLOVENSKI
STANDARDSIST EN 60794-2-20:20041DGRPHãþD
EUROPEAN STANDARD EN 60794-2-20 NORME EUROPÉENNE
EUROPÄISCHE NORM January 2010
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60794-2-20:2010 E
ICS 33.180.01 Supersedes EN 60794-2-20:2003
English version
Optical fibre cables -
Part 2-20: Indoor cables -
Family specification for multi-fibre optical distribution cables (IEC 60794-2-20:2008)
Câbles à fibres optiques -
Partie 2-20: Câbles intérieurs -
Spécification de famille pour les câbles optiques multifibres de distribution (CEI 60794-2-20:2008)
Lichtwellenleiterkabel -
Teil 2-20: LWL-Innenkabel -
Familienspezifikation
für Mehrfaserverteilerkabel (IEC 60794-2-20:2008)
This European Standard was approved by CENELEC on 2009-12-01. 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 Central Secretariat 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 Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
Foreword The text of document 86A/1187/CDV, future edition 2 of IEC 60794-2-20, prepared by SC 86A, Fibres and cables, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60794-2-20 on 2009-12-01 This European Standard supersedes EN 60794-2-20:2003. The main changes are listed below: – cable crush to be measured both during and after load; – cable torsion test length parameter correlated to cable outer diameter; – cable description and construction blank detail specification annexes; – MICE environment blank detail specification is addressed in Annex B. This standard is to be used in conjunction with EN 60794-1-1, EN 60794-1-2 and EN 60794-2. The following dates were fixed: – latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop)
2010-09-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2012-12-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 60794-2-20:2008 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 60654 NOTE
Harmonized in EN 60654 series (not modified). IEC 60721-1 NOTE
Harmonized as EN 60721-1 (not modified). IEC 60721-3-3 + A2 NOTE
Harmonized as EN 60721-3-3 + A2 (not modified). IEC 60794-1-2 NOTE
Harmonized as EN 60794-1-2 (not modified). IEC 61000-6-2 NOTE
Harmonized as EN 61000-6-2 (not modified). IEC 61326 NOTE
Harmonized as EN 61326 (not modified). IEC 61918 NOTE
Harmonized as EN 61918 (modified). __________ SIST EN 60794-2-20:2010
- 3 - EN 60794-2-30:2010 Annex ZA (normative)
Normative references to international publications with their corresponding European publications
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.
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 60189-1 - Low-frequency cables and wires with PVC insulation and PVC sheath -
Part 1: General test and measuring methods - -
IEC 60304 - Standard colours for insulation for low-frequency cables and wires HD 402 S2 -
IEC 60793-2-10 - Optical fibres -
Part 2-10: Product specifications - Sectional specification for category A1 multimode fibresEN 60793-2-10 -
IEC 60793-2-50 - Optical fibres -
Part 2-50: Product specifications - Sectional specification for class B single-mode fibres EN 60793-2-50 -
IEC 60794-2 - Optical fibre cables -
Part 2: Indoor cables - Sectional specification EN 60794-2 -
IEC 60811-1-4 - Insulating and sheathing materials of electric and optical cables - Common test methods - Part 1-4: General application - Tests at low temperature EN 60811-1-4
-
IEC/TR 62222 - Fire performance of communication cables installed in buildings - -
IEC 60794-2-20Edition 2.0 2008-11INTERNATIONAL STANDARD
Optical fibre cables –
Part 2-20: Indoor cables – Family specification for multi-fibre optical distribution cables
INTERNATIONAL ELECTROTECHNICAL COMMISSION TICS 33.180.01 PRICE CODEISBN 2-8318-1015-7
– 2 – 60794-2-20 © IEC:2008(E) CONTENTS FOREWORD.4 1 Scope.6 2 Normative references.6 3 Construction.6 3.1 General.6 3.2 Optical fibres and primary coating.7 3.3 Buffer.7 3.4 Ruggedised fibre.7 3.5 Slotted core.7 3.6 Tube.7 3.7 Stranded tube.7 3.8 Ribbon structure.8 3.9 Strength and anti-buckling members.8 3.10 Ripcord.8 3.11 Sheath.8 3.12 Sheath marking.8 3.13 Identification.8 3.14 Examples of cable constructions.8 4 Tests.8 4.1 Dimensions.8 4.2 Mechanical requirements.9 4.2.1 Cable tensile performance.9 4.2.2 Cable crush.9 4.2.3 Cable impact.9 4.2.4 Cable bending.10 4.2.5 Cable repeated bending.10 4.2.6 Cable bending under tension.10 4.2.7 Cable bending at low temperature.10 4.2.8 Cable flexing.10 4.2.9 Cable torsion.10 4.2.10 Cable kink.11 4.3 Environmental requirements – Temperature cycling.11 4.4 Transmission requirements.11 4.5 Fire performance.11 Annex A (informative)
Examples of cable constructions.13 Annex B (informative)
Family specification for multi-fibre optical distribution cables – Blank detail specification and minimum requirements.18 Bibliography.24
Figure A.1 – Example of cross-section of a 12 fibre distribution cable.13 Figure A.2 – Example of cross-section of a 36 fibre distribution cable.13 Figure A.3 – Example of cross-section of a 6 fibre break-out cable.14 Figure A.4 – Example of cross-section of a 24 fibre break-out cable.14 Figure A.5 – Example of cross-section of a slotted core type indoor cable
with 4 fibre ribbons.15 SIST EN 60794-2-20:2010
60794-2-20 © IEC:2008(E) – 3 – Figure A.6 – Example of cross-section of an SZ (reverse oscillating lay) slotted core type indoor cable with 2 fibre ribbons.15 Figure A.7 – Example of cross-section of an SZ (reverse oscillating lay) slotted core type indoor cable with 4 fibre bundles.16 Figure A.8 – Example of multi-fibre unitube cable.16 Figure A.9 – Example of multi-fibre cable.17
Table 1 – Dimensions of buffered fibres.7 Table 2 – Sample temperature cycling values.11 Table B.1 – Cable description.18 Table B.2 – Cable element.19 Table B.3 – Cable construction.20 Table B.4 – Installation and operating conditions.20 Table B.5 – Tests applicable.21 Table B.6 – Specifications for industrial premises installations as defined in
ISO/IEC 24702.22
– 4 – 60794-2-20 © IEC:2008(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION ___________
OPTICAL FIBRE CABLES –
Part 2-20: Indoor cables –
Family specification for multi-fibre optical distribution 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) I
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