Optical fibre cables -- Part 1-21: Generic specification - Basic optical cable test procedures - Mechanical tests methods (IEC 60794-1-21:2015)

This part of IEC 60794 applies to optical fibre cables for use with telecommunication
equipment and devices employing similar techniques, and to cables having a combination of
both optical fibres and electrical conductors.
The object of this standard is to define test procedures to be used in establishing uniform
requirements for mechanical requirement performance.
Throughout this standard the wording “optical cable” may also include optical fibre units,
microduct fibre units, etc.
General requirements and definitions are given in IEC 60794-1-20 and a complete reference
guide to test method of all types in the IEC 60794-1-2.

Lichtwellenleiter - Teil 1-21: Fachgrundspezifikation - Grundlegende - Prüfverfahren für Lichtwellenleiterkabel - Mechanische Prüfverfahren (IEC 60794-1-21:2015)

Câbles à fibres optiques - Partie 1-20: Spécification générique - Procédures fondamentales d'essais des câbles optiques - Méthodes d'essais mécaniques (IEC 60794-1-21:2015)

IEC 60794-1-21:2015 s'applique aux câbles à fibres optiques destinés à être utilisés avec des équipements de télécommunication et des dispositifs utilisant des techniques analogues, ainsi qu'aux câbles constitués de fibres optiques d'une part et de conducteurs électriques d'autre part.L'objet de la présente norme est de définir les procédures d'essai à utiliser en vue d'établir des exigences uniformes pour les performances d'exigence mécanique. Dans la présente norme, le terme "câble optique" peut également englober les unités de fibres optiques, les unités de fibres en microconduit, etc. Les exigences générales et les définitions sont données dans l'IEC 60794-1-20 et un guide de référence complet pour tous les types de méthode d'essai est contenu dans l'IEC 60794-1-2. Cette première édition de l'IEC 60794-1-21 annule et remplace la partie des essais mécaniques de la deuxième édition de l'IEC 60794-1-2, publiée en 2003. Elle constitue une révision technique. Mots clés : câbles à fibres optiques destinés à être utilisés avec des équipements de télécommunication, procédures d'essai

Optični kabli - 1-21. del: Splošne specifikacije - Osnovni preskusni postopki za optične kable - Mehanske preskusne metode (IEC 60794-1-21:2015)

Ta del standarda IEC 60794 obravnava optične kable za uporabo s telekomunikacijsko opremo in napravami, ki uporabljajo podobne tehnike, ter kable s kombinacijo optičnih vlaken in električnih vodnikov.  Cilj tega standarda je opredeliti preskusne postopke, ki jih je treba uporabiti pri določanju enotnih zahtev za mehansko učinkovitost. V tem standardu lahko izraz »optični kabel« vključuje tudi optične enote, mikrokanale itd. Splošne zahteve in definicije so podane v standardu IEC 60794-1-20, popolna referenčna navodila za vse tipe testnih metod pa so podana v standardu IEC 60794-1-2.

General Information

Status
Published
Publication Date
07-Sep-2015
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
02-Jun-2015
Due Date
07-Aug-2015
Completion Date
08-Sep-2015

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SLOVENSKI STANDARD
SIST EN 60794-1-21:2015
01-oktober-2015
1DGRPHãþD
SIST EN 60794-1-2:2004
2SWLþQLNDEOLGHO6SORãQHVSHFLILNDFLMH2VQRYQLSUHVNXVQLSRVWRSNL]D
RSWLþQHNDEOH0HKDQVNHSUHVNXVQHPHWRGH ,(&

Optical fibre cables -- Part 1-21: Generic specification - Basic optical cable test

procedures - Mechanical tests methods (IEC 60794-1-21:2015)

Lichtwellenleiter - Teil 1-21: Fachgrundspezifikation - Grundlegende - Prüfverfahren für

Lichtwellenleiterkabel - Mechanische Prüfverfahren (IEC 60794-1-21:2015)
Câbles à fibres optiques - Partie 1-20: Spécification générique - Procédures
fondamentales d'essais des câbles optiques - Méthodes d'essais mécaniques (IEC
60794-1-21:2015)
Ta slovenski standard je istoveten z: EN 60794-1-21:2015
ICS:
19.060 Mehansko preskušanje Mechanical testing
33.180.10 2SWLþQD YODNQDLQNDEOL Fibres and cables
SIST EN 60794-1-21:2015 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 60794-1-21:2015
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SIST EN 60794-1-21:2015
EUROPEAN STANDARD EN 60794-1-21
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 33.180.10 Supersedes EN 60794-1-2:2003 (partially)
English Version
Optical fibre cables - Part 1-21: Generic specification - Basic
optical cable test procedures - Mechanical tests methods
(IEC 60794-1-21:2015)

Câbles à fibres optiques - Partie 1-20: Spécification Lichtwellenleiter - Teil 1-21: Fachgrundspezifikation -

générique - Procédures fondamentales d'essais des câbles Grundlegende - Prüfverfahren für Lichtwellenleiterkabel -

optiques - Méthodes d'essais mécaniques Mechanische Prüfverfahren
(IEC 60794-1-21:2015) (IEC 60794-1-21:2015)

This European Standard was approved by CENELEC on 2015-04-14. 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

© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 60794-1-21:2015 E
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SIST EN 60794-1-21:2015
EN 60794-1-21:2015 - 2 -
Foreword

The text of document 86A/1638/FDIS, future edition 1 of IEC 60794-1-21, 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 60794-1-21:2015.
The following dates are fixed:
• latest date by which the document has to be (dop) 2016-01-14
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2018-04-14
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60794-1-2:2003 (partially).

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 60794-1-21:2015 was approved by CENELEC as a

European Standard without any modification.
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SIST EN 60794-1-21:2015
- 3 - EN 60794-1-21:2015
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 60227-2 - Polyvinyl chloride insulated cables of rated - -
voltages up to and including 450/750 V --
Part 2: Test methods
IEC 60793-1-22 2001 Optical fibres -- Part 1-22: Measurement EN 60793-1-22 2002
methods and test procedures - Length
measurement
IEC 60793-1-32 2010 Optical fibres -- Part 1-32: Measurement EN 60793-1-32 2010
methods and test procedures - Coating
strippability
IEC 60793-1-40 - Optical fibres -- Part 1-40: Measurement EN 60793-1-40 -
methods and test procedures - Attenuation
IEC 60793-1-46 2001 Optical fibres -- Part 1-46: Measurement EN 60793-1-46 2002
methods and test procedures - Monitoring
of changes in optical transmittance
IEC 60794-1-1 - Optical fibre cables -- Part 1-1: Generic EN 60794-1-1 -
specification - General
IEC 60794-1-2 2013 Optical fibre cables -- Part 1-2: Generic EN 60794-1-2 2014
specification - Cross reference table for
optical cable test procedures

IEC 60794-1-20 2014 Optical fibre cables -- Part 1-20: Generic EN 60794-1-20 2014

specification - Basic optical cable test
procedures - General and Definitions

IEC 60794-1-22 2012 Optical fibre cables -- Part 1-22: Generic EN 60794-1-22 2012

specification - Basic optical cable test
procedures - Environmental test methods
IEC 61300-2-44 - Fibre optic interconnecting devices and EN 61300-2-44 -
passive components - Basic test and
measurement procedures - Part 2-44:
Tests - Flexing of the strain relief of fibre
optic devices
IEC/TR 62691 - Optical fibre cables - Guide to the - -
installation of optical fibre cables
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SIST EN 60794-1-21:2015
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SIST EN 60794-1-21:2015
IEC 60794-1-21
Edition 1.0 2015-03
INTERNATIONAL
STANDARD
colour
inside
Optical fibre cables –
Part 1-21: Generic specification – Basic optical cable test procedures –
Mechanical test methods
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.10 ISBN 978-2-8322-2320-8

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

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
SIST EN 60794-1-21:2015
– 2 – IEC 60794-1-21:2015 © IEC 2015
CONTENTS

FOREWORD ........................................................................................................................... 9

1 Scope and object ........................................................................................................... 11

2 Normative references .................................................................................................... 11

3 Method E1: Tensile performance ................................................................................... 12

3.1 Object ................................................................................................................... 12

3.2 Sample length ....................................................................................................... 12

3.3 Apparatus ............................................................................................................. 12

3.4 Procedure ............................................................................................................. 12

3.4.1 General requirements .................................................................................... 12

3.4.2 Procedure ...................................................................................................... 13

3.5 Requirements ....................................................................................................... 13

3.6 Details to be specified ........................................................................................... 13

3.7 Details to be reported ........................................................................................... 14

4 Method E2: Abrasion ..................................................................................................... 15

4.1 Object ................................................................................................................... 15

4.2 Sample ................................................................................................................. 15

4.3 Method E2A: Abrasion resistance of optical fibre cable sheaths ............................ 15

4.3.1 Apparatus ...................................................................................................... 15

4.3.2 Procedure ...................................................................................................... 16

4.3.3 Requirements ................................................................................................ 16

4.3.4 Details to be specified ................................................................................... 16

4.4 Method E2B: Abrasion resistance of optical fibre cable markings .......................... 16

4.4.1 Apparatus ...................................................................................................... 16

4.4.2 Procedure ...................................................................................................... 17

4.4.3 Requirements ................................................................................................ 17

4.4.4 Details to be specified ................................................................................... 17

5 Method E3: Crush .......................................................................................................... 18

5.1 Object ................................................................................................................... 18

5.2 Sample ................................................................................................................. 18

5.3 Method E3A: Plate/plate ....................................................................................... 18

5.3.1 Apparatus ...................................................................................................... 18

5.3.2 Procedure ...................................................................................................... 18

5.4 Method E3B: Mandrel/plate ................................................................................... 19

5.4.1 Apparatus ...................................................................................................... 19

5.4.2 Procedure ...................................................................................................... 19

5.5 Requirements ....................................................................................................... 19

5.6 Details to be specified ........................................................................................... 19

6 Method E4: Impact ........................................................................................................ 21

6.1 Object ................................................................................................................... 21

6.2 Sample ................................................................................................................. 21

6.2.1 Sample length ............................................................................................... 21

6.2.2 Termination ................................................................................................... 21

6.3 Apparatus ............................................................................................................. 21

6.4 Procedure ............................................................................................................. 22

6.5 Requirements ....................................................................................................... 22

6.6 Details to be specified ........................................................................................... 22

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SIST EN 60794-1-21:2015
IEC 60794-1-21:2015 © IEC 2015 – 3 –

7 Method E5A: Stripping force stability of cabled optical fibres ......................................... 24

7.1 Object ................................................................................................................... 24

7.2 Sample ................................................................................................................. 24

7.2.1 Sample length ............................................................................................... 24

7.2.2 Sample preparation ....................................................................................... 24

7.3 Apparatus ............................................................................................................. 24

7.4 Procedure ............................................................................................................. 25

7.5 Requirements ....................................................................................................... 25

7.6 Details to be specified ........................................................................................... 25

8 Method E5B: Strippability of optical fibre ribbons ........................................................... 25

8.1 Object ................................................................................................................... 25

8.2 Sample ................................................................................................................. 25

8.3 Apparatus ............................................................................................................. 25

8.3.1 General ......................................................................................................... 25

8.3.2 Stripping tool ................................................................................................. 25

8.3.3 Motor and slide (if used) ................................................................................ 26

8.3.4 Positioning and holding equipment ................................................................ 26

8.3.5 Alcohol wipe .................................................................................................. 26

8.4 Procedure ............................................................................................................. 26

8.5 Requirements ....................................................................................................... 27

8.6 Details to be specified ........................................................................................... 27

9 Method E5C: Strippability of buffered optical fibres ........................................................ 27

9.1 Object ................................................................................................................... 27

9.2 Sample ................................................................................................................. 27

9.3 Apparatus ............................................................................................................. 27

9.4 Procedure ............................................................................................................. 28

9.5 Requirements ....................................................................................................... 28

9.6 Details to be specified ........................................................................................... 28

10 Method E6: Repeated bending ....................................................................................... 28

10.1 Object ................................................................................................................... 28

10.2 Sample ................................................................................................................. 28

10.2.1 Sample length ............................................................................................... 28

10.2.2 Termination ................................................................................................... 29

10.3 Apparatus ............................................................................................................. 29

10.4 Procedure ............................................................................................................. 29

10.5 Requirements ....................................................................................................... 29

10.6 Details to be specified ........................................................................................... 30

11 Method E7: Torsion ....................................................................................................... 30

11.1 Object ................................................................................................................... 30

11.2 Sample ................................................................................................................. 30

11.3 Apparatus ............................................................................................................. 31

11.4 Procedure ............................................................................................................. 31

11.5 Requirements ....................................................................................................... 32

11.6 Details to be specified ........................................................................................... 32

11.7 Details to be reported ........................................................................................... 32

12 Method E8: Flexing ........................................................................................................ 34

12.1 Object ................................................................................................................... 34

12.2 Sample ................................................................................................................. 34

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SIST EN 60794-1-21:2015
– 4 – IEC 60794-1-21:2015 © IEC 2015

12.3 Apparatus ............................................................................................................. 34

12.4 Procedure ............................................................................................................. 34

12.5 Requirements ....................................................................................................... 34

12.6 Details to be specified ........................................................................................... 34

13 Method E9: Snatch (deleted) ......................................................................................... 35

14 Method E10: Kink .......................................................................................................... 35

14.1 Object ................................................................................................................... 35

14.2 Sample ................................................................................................................. 35

14.3 Apparatus ............................................................................................................. 35

14.4 Procedure ............................................................................................................. 36

14.5 Requirements ....................................................................................................... 36

14.6 Details to be specified ........................................................................................... 36

15 Method E11: Bend ......................................................................................................... 37

15.1 Object ................................................................................................................... 37

15.2 Sample ................................................................................................................. 37

15.3 Apparatus ............................................................................................................. 37

15.4 Procedure ............................................................................................................. 37

15.4.1 Procedure 1 – Test method E11A (standard test procedure) .......................... 37

15.4.2 Procedure 2 – Test method E11B (alternative test procedure) ....................... 37

15.5 Requirements ....................................................................................................... 38

15.6 Details to be specified ........................................................................................... 38

16 Method E12: Cut-through resistance (deleted) ............................................................... 39

17 Method E13: Shotgun damage ....................................................................................... 39

17.1 Object ................................................................................................................... 39

17.2 General ................................................................................................................. 39

17.3 Method E13A: Shotgun test................................................................................... 39

17.3.1 Sample .......................................................................................................... 39

17.3.2 Apparatus ...................................................................................................... 39

17.3.3 Procedure ...................................................................................................... 39

17.3.4 Requirements ................................................................................................ 40

17.3.5 Details to be specified ................................................................................... 40

17.4 Method E13B: Shotgun simulation ........................................................................ 40

17.4.1 Sample .......................................................................................................... 40

17.4.2 Apparatus ...................................................................................................... 40

17.4.3 Procedure ...................................................................................................... 41

17.4.4 Requirements ................................................................................................ 41

17.4.5 Details to be specified ................................................................................... 41

17.4.6 Calculation of drop weight and height ............................................................ 41

18 Method E14: Compound flow (drip) ................................................................................ 45

18.1 Object ................................................................................................................... 45

18.2 Sample ................................................................................................................. 45

18.3 Apparatus ............................................................................................................. 45

18.4 Procedure ............................................................................................................. 46

18.5 Requirements ....................................................................................................... 46

18.6 Details to be specified ........................................................................................... 46

19 Method E15: Bleeding and evaporation.......................................................................... 47

19.1 Object ................................................................................................................... 47

19.2 Sample ................................................................................................................. 47

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SIST EN 60794-1-21:2015
IEC 60794-1-21:2015 © IEC 2015 – 5 –

19.3 Apparatus ............................................................................................................. 47

19.4 Procedure ............................................................................................................. 47

19.5 Requirements ....................................................................................................... 48

19.6 Details to be specified ........................................................................................... 48

20 Method E16: [Title unknown] (deleted) ........................................................................... 48

21 Method E17: Bending stiffness ...................................................................................... 48

21.1 Object ................................................................................................................... 48

21.2 General ................................................................................................................. 48

21.3 Method E17A: Three-point bend ............................................................................ 49

21.3.1 Sample .......................................................................................................... 49

21.3.2 Apparatus ...................................................................................................... 49

21.3.3 Procedure ...................................................................................................... 49

21.3.4 Requirements ................................................................................................ 50

21.3.5 Details to be specified ................................................................................... 50

21.4 Method E17B: cantilever bend .............................................................................. 50

21.4.1 Sample .......................................................................................................... 50

21.4.2 Apparatus ...................................................................................................... 50

21.4.3 Procedure ...................................................................................................... 50

21.4.4 Requirements ................................................................................................ 51

21.4.5 Details to be specified ................................................................................... 51

21.5 Method E17C: Buckling bend ................................................................................ 51

21.5.1 Sample .......................................................................................................... 51

21.5.2 Apparatus ...................................................................................................... 51

21.5.3 Procedure ...................................................................................................... 51

21.5.4 Requirements ................................................................................................ 51

21.5.5 Details to be specified ................................................................................... 52

22 Method E18A: Bending under tension ............................................................................ 53

22.1 Object ................................................................................................................... 53

22.2 Sample ................................................................................................................. 53

22.3 Apparatus ............................................................................................................. 53

22.4 Procedure ............................................................................................................. 54

22.5 Requirements ....................................................................................................... 54

22.6 Details to be specified ...........................................................................................

...

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