IEC PAS 60794-2-50:2004
(Main)Optical fibre cables - Part 2-50: Indoor optical fibre cables - Family specification for simplex and duplex cables for use in patch cords
Optical fibre cables - Part 2-50: Indoor optical fibre cables - Family specification for simplex and duplex cables for use in patch cords
This is a family specification that covers simplex and duplex optical fibre cables for use in patch cords. The requirements of the Sectional specification IEC 60794-2 are applicable to cables covered by this standard.
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PAS 60794-2-50
SPECIFICATION
First edition
Pre-Standard
2004-11
Optical fibre cables –
Part 2-50:
Indoor optical fibre cables –
Family specification for simplex and duplex
cables for use in patch cords
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IEC/PAS 60794-2-50:2004(E)
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PUBLICLY
IEC
AVAILABLE
PAS 60794-2-50
SPECIFICATION
First edition
Pre-Standard
2004-11
Optical fibre cables –
Part 2-50:
Indoor optical fibre cables –
Family specification for simplex and duplex
cables for use in patch cords
© IEC 2004 ⎯ Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue
– 2 – PAS 60794-2-50 © IEC:2004 (E)
CONTENTS
FOREWORD.4
1 Scope .6
2 Normative references .6
3 Construction.7
3.1 General .7
3.2 Optical fibres and primary coating .7
3.3 Buffer .7
3.4 Ruggedized fibre .8
3.5 Tube .8
3.6 Strength and anti-buckling members .8
3.7 Sheath .8
3.8 Sheath marking .8
3.9 Examples of cable constructions .8
4 Tests.8
4.1 Dimensions .8
4.2 Mechanical requirements .8
4.2.1 Tensile performance .9
4.2.2 Crush .9
4.2.3 Impact .9
4.2.4 Repeated bending.9
4.2.5 Flexing .10
4.2.6 Bend.10
4.2.7 Torsion .10
4.2.8 Bend at low temperature .10
4.2.9 Kink.11
4.2.10 Sheath pull-off force.11
4.2.11 Sheath shrinkage .11
4.2.12 Fibre movement in compression .11
4.3 Environmental requirements .11
4.3.1 Temperature cycling.11
4.4 Transmission requirements .12
4.5 Fire performance .12
4.5.1 Flame propagation .12
4.5.2 Emission of smoke .12
4.5.3 Emission of corrosive gases .12
4.6 Examples of some types of cable construction.13
Annex A (normative) Method E20: Sheath pull-off force for optical fibre cable used for
patch cords.16
A.1 Object .16
A.2 General .16
A.3 Sample.16
A.4 Apparatus.16
A.4.1 Tensile test rig .16
PAS 60794-2-50 © IEC:2004 (E) – 3 –
A.4.2 Recording equipment .16
A.4.3 Stripping tools.16
A.4.4 Pulling jig.17
A.4.5 Cable anchor .17
A.5 Procedure .17
A.6 Requirements .17
A.7 Details to be specified. .17
Annex B (normative) Method F10: Sheath shrinkage for patch cord cables.21
B.1 Object .21
B.2 Apparatus.21
B.3 Sample.21
B.4 Test procedure .21
B.5 Requirements .21
Annex C (normative) Method E21: Fibre movement under compression in patch-cord
cables .22
C.1 Object .22
C.2 Apparatus.22
C.3 Sampling .22
C.4 Test procedure .22
C.5 Requirements .22
C.6 Details to be specified .23
Annex D (normative) Method FXX: Temperature cycling for patch-cord cables .24
D.1 Object .24
D.2 Apparatus.24
D.3 Sampling .24
D.4 Test procedure .24
D.5 Requirements .25
D.6 Details to be specified .25
– 4 – PAS 60794-2-50 © IEC:2004 (E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 2-50: Indoor optical fibre cables – Family specification for simplex
and duplex cables for use in patch cords
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