BS EN 61300-2-44:2013

BSI Standards Publication

Fibre optic interconnecting
devices and passive
components — Basic test
and measurement
procedures
Part 2-44: Tests — Flexing of the strain
relief of fibre optic devices


BRITISH STANDARD

BS EN 61300-2-44:2013
National foreword

This British Standard is the UK implementation of EN 61300-2-44:2013. It is
identical to IEC 61300-2-44:2013. It supersedes BS EN 61300-2-44:2008
which is withdrawn.
The UK participation in its preparation was entrusted by Technical
Committee GEL/86, Fibre optics, to Subcommittee GEL/86/2, Fibre optic
interconnecting devices and passive components.
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 78245 9

ICS 33.180.20

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 30 September 2013.

Amendments/corrigenda issued since publication
Date

Text affected


BS EN 61300-2-44:2013

EUROPEAN STANDARD

EN 61300-2-44

NORME EUROPÉENNE
September 2013

EUROPÄISCHE NORM
ICS 33.180.20

Supersedes EN 61300-2-44:2008

English version


Fibre optic interconnecting devices and passive components Basic test and measurement procedures Part 2-44: Tests Flexing of the strain relief of fibre optic devices
(IEC 61300-2-44:2013)
Dispositifs d'interconnexion et composants
passifs à fibres optiques Procédures fondamentales d’essais et de
mesures Partie 2-44: Essais Flexion du serre-câble des dispositifs à
fibres optiques
(CEI 61300-2-44:2013)

Lichtwellenleiter-Verbindungselemente
und passive Bauteile- Grundlegende Prüf
und Messverfahren Teil 2-44: Prüfungen Biegen der Zugentlastung von
Lichtwellenleiterbauteilen
(IEC 61300-2-44:2013)

This European Standard was approved by CENELEC on 2013-08-19. 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
CEN-CENELEC 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 61300-2-44:2013 E


BS EN 61300-2-44:2013
EN 61300-2-44:2013

-2-

Foreword
The text of document 86B/3499/CDV, future edition 3 of IEC 61300-2-44, prepared by SC 86B, "Fibre
optic interconnecting devices and passive components", of IEC TC 86, "Fibre optics" was submitted to the
IEC-CENELEC parallel vote and approved by CENELEC as EN 61300-2-44:2013.
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
latest date by which the national
standards conflicting with the
document have to be withdrawn


(dop)

2014-05-19

(dow)

2014-08-19

This document supersedes EN 61300-2-44:2008.
EN 61300-2-44:2013 includes
EN 61300-2-44:2008:

the

following

significant

technical

changes

with

respect

to

a) revision of Figure 1;
b) change of fibre length from the flex point to the weight.

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 61300-2-44:2013 was approved by CENELEC as a European
Standard without any modification.


-3-

BS EN 61300-2-44:2013
EN 61300-2-44:2013

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 61300-1

-

Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures Part 1: General and guidance

EN 61300-1

-

IEC 61300-3-1

-

Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures Part 3-1: Examinations and measurements Visual examination

EN 61300-3-1

-

IEC 61300-3-3


-

Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures Part 3-3: Examinations and measurements Active monitoring of changes in attenuation
and return loss

EN 61300-3-3

-

IEC 61300-3-4

-

Fibre optic interconnecting devices and
passive components - Basic test and
measurement procedures Part 3-4: Examinations and measurements Attenuation

EN 61300-3-4

-

IEC 61753-1

-

Fibre optic interconnecting devices and
EN 61753-1
passive components performance standard Part 1: General and guidance for performance

standards

-


BS EN 61300-2-44:2013
–2–

61300-2-44  IEC:2013(E)

CONTENTS

1

Scope ............................................................................................................................... 5

2

Normative references ........................................................................................................ 5

3

General description ........................................................................................................... 5

4

Apparatus ......................................................................................................................... 5

5


4.1 General ................................................................................................................... 5
4.2 Optical source (S) .................................................................................................... 6
4.3 Detector (D) ............................................................................................................. 7
4.4 Mounting fixture ....................................................................................................... 7
4.5 Flex test machine or jig ............................................................................................ 7
Procedure ......................................................................................................................... 7

6

5.1 Preparation of specimens ........................................................................................ 7
5.2 Preconditioning ........................................................................................................ 7
5.3 Initial measurements................................................................................................ 7
5.4 Conditioning ............................................................................................................ 7
5.5 Recovery ................................................................................................................. 8
5.6 Final measurements ................................................................................................ 8
Severity ............................................................................................................................ 8

7

Details to be specified ....................................................................................................... 9

Figure 1 – Apparatus for testing .............................................................................................. 6
Figure 2 – Application of the load in the case of duplex cordage .............................................. 6
Table 1 – Severities ................................................................................................................ 8


BS EN 61300-2-44:2013
61300-2-44  IEC:2013(E)

–5–


FIBRE OPTIC INTERCONNECTING
DEVICES AND PASSIVE COMPONENTS –
BASIC TEST AND MEASUREMENT PROCEDURES –
Part 2-44: Tests –
Flexing of the strain relief of fibre optic devices

1

Scope

This part of IEC 61300 specifies a test to determine the influence of flexing under tensile load
of the strain relief of fibre optic devices. The intention is to simulate the number of flexing
cycles which would typically be experienced during service life. This test is applied to both
single fibre cable and multiple fibre cable.

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.
IEC 61300-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 1: General and guidance
IEC 61300-3-1, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-1: Examinations and measurements – Visual examination
IEC 61300-3-3, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-3: Examinations and measurements – Active monitoring of

changes in attenuation and return loss
IEC 61300-3-4, Fibre optic interconnecting devices and passive components – Basic test and
measurement procedures – Part 3-4: Examinations and measurements – Attenuation
IEC 61753-1, Fibre optic interconnecting devices and passive components performance
standard – Part 1: General and guidance for performance standards

3

General description

The device under test (DUT) is rotated ± 90° in the plane of the cable about an axis
perpendicular to the axis of the attached cable and in the case of ribbon cable, parallel to the
width of the ribbon. This causes flexing of the strain relief and cable close to the DUT. During
the flexing, a tensile force, but no torque, is applied.

4
4.1

Apparatus
General

The apparatus for testing and the flexing patterns involved are presented in Figure 1.


BS EN 61300-2-44:2013
–6–

61300-2-44  IEC:2013(E)

0°


–90°

+90°

Source

Mounting plate

25 cm ± 5 cm

DUT

Weight
Detector

Tensile

IEC 1603/13

Figure 1 – Apparatus for testing
In the case of duplex cordage or ribbon, the loads shall not be doubled and the cable shall be
bent in the minor axis direction as shown in Figure 2.

Load

Duplex cordage
IEC 1276/04

Figure 2 – Application of the load in the case of duplex cordage

The equipment used is that indicated in 4.2 to 4.5.
4.2

Optical source (S)

The recommended source shall be in accordance with IEC 61300-3-3 and IEC 61300-3-4 as
appropriate.


BS EN 61300-2-44:2013
61300-2-44  IEC:2013(E)
4.3

–7–

Detector (D)

The recommended detector shall be in accordance with IEC 61300-3-3 and IEC 61300-3-4 as
appropriate.
4.4

Mounting fixture

The mounting fixture rigidly holds the fibre optic DUT in correct alignment during the test. If the
device is a fibre optic connector, an adaptor or a receptacle may be used as a mounting fixture.
The fixture shall not distort the DUT. The fixture shall allow the DUT to be connected to
monitoring equipment.
4.5

Flex test machine or jig

o

A machine or jig that can rotate the DUT ± 90 from a straight position while applying a load to
the fibre or cable.

5
5.1

Procedure
Preparation of specimens

Prepare and clean the specimen in accordance with the manufacturer’s instructions.
Visually check that the attachment of the cable to the fibre optic device is not damaged in
accordance with IEC 61300-3-1.
Fibre length from the flex point to the weight: 25 cm ± 5 cm.
Fibre length is measured from the point of flexing to the point of application of the load.
5.2

Preconditioning

Pre-condition the specimen and all equipment for 2 h at the standard test conditions as defined
in IEC 61300-1, unless otherwise specified in the relevant specification.
5.3

Initial measurements

Complete initial examinations and measurements on the specimen as required by the relevant
specification.
5.4


Conditioning

Install the DUT on the apparatus.
Measure the attenuation of the DUT with the flexing arm in a vertical position in accordance
with IEC 61300-3-4.
Apply the specified tensile load and apply the specified number of flexes. Use gentle rotational
movements, not exceeding 20 cycles/min. The dwell at each extreme shall be not greater than
5 s.
Measure the change in attenuation during test in accordance with IEC 61300-3-3.
Stop the flexing with the flexing arm in vertical position. Remove the tensile force.


BS EN 61300-2-44:2013
–8–
5.5

61300-2-44  IEC:2013(E)

Recovery

Allow the DUT to remain under standard test conditions for 2 h, as defined in IEC 61300-1,
unless otherwise specified in the relevant specification. Clean the DUT in accordance with the
manufacturer’s instructions.
5.6

Final measurements

Remove the DUT from the apparatus and make final measurements, as defined by the relevant
specification, to ensure that there is no permanent damage to the DUT. The results of the final
measurement shall be within the limit established in the relevant specification.

Visually check that the attachment of the cable to the fibre optic DUT is not damaged in
accordance with IEC 61300-3-1.

6

Severity

Severity is specified by the magnitude of tensile force and the number of cycles +90° to
–90°.
Recommended values of the test parameters are given in Table 1.
Table 1 – Severities
Category

a

Component type

Tensile force
N

Number of cycles

C

Connectors – Reinforced cable

2

100


C

Passive components – Reinforced cable

2

30

U and E

Connectors – Reinforced cable

5

100

U and E

Passive components – Reinforced cable

5

30

Reinforced jacketed cables

5

30


Primary and secondary coated fibre

2

30

O

O

Passive components –

Connectors –
Reinforced jacketed cables

8,9

100

b

SFF connectors

5,9

100

b

a


Category can be found in IEC 61753-1.

b

Applied at 25 cm ± 5 cm from cable entrance to plug.


BS EN 61300-2-44:2013
61300-2-44  IEC:2013(E)

7

–9–

Details to be specified

The relevant specification shall specify the following details:
–

magnitude of tensile force;

–

number of flexes;

–

applicable optical fibre cable (type, length, etc.);


–

initial examination and measurements and performance requirements;

–

permitted change of attenuation during test;

–

final examination and measurements and performance requirements;

–

pass/fail decision criterion;

–

deviations from test procedure.

___________


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