oSIST prEN IEC 60794-2-24:2023
(Main)Optical fibre cables - Part 2-24: Indoor optical fibre cables - Detailed specification for multiple multi-fibre unit cables for use in MPO connector terminated breakout cable assemblies
Optical fibre cables - Part 2-24: Indoor optical fibre cables - Detailed specification for multiple multi-fibre unit cables for use in MPO connector terminated breakout cable assemblies
Lichtwellenleiterkabel – Teil 2-24: Lichtwellenleiterkabel für den Innenbereich – Bauartspezifikation für Kabel mit mehreren Fasereinheiten zur Verwendung in Kabelkonfektionen mit MPO-Steckern
Optični kabli - 2-24. del: Notranji optični kabli - Podrobna specifikacija za večžilne večvlakenske kable za uporabo v kabelskih razdelilnih sestavih, zaključenih z večvlakenskimi natičnimi konektorji
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 60794-2-24:2023
01-februar-2023
Optični kabli - 2-24. del: Notranji optični kabli - Podrobna specifikacija za večžilne
večvlakenske kable za uporabo v kabelskih razdelilnih sestavih, zaključenih z
večvlakenskimi natičnimi konektorji
Optical fibre cables - Part 2-24: Indoor optical fibre cables - Detailed specification for
multiple multi-fibre unit cables for use in MPO connector terminated breakout cable
assemblies
Ta slovenski standard je istoveten z: prEN IEC 60794-2-24:2022
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
oSIST prEN IEC 60794-2-24:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 60794-2-24:2023
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oSIST prEN IEC 60794-2-24:2023
86A/2239/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60794-2-24 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-11-04 2023-01-27
SUPERSEDES DOCUMENTS:
86A/2162/CD, 86A/2236/CC
IEC SC 86A : FIBRES AND CABLES
SECRETARIAT: SECRETARY:
France Mr Laurent Gasca
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
SC 86B
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
TITLE:
Optical fibre cables – Part 2-24: Indoor optical fibre cables – Detailed specification for multiple
multi-fibre unit cables for use in MPO connector terminated breakout cable assemblies
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
Copyright © 2022 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.
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oSIST prEN IEC 60794-2-24:2023
IEC CDV 60794-2-24/Ed1 © IEC 2022 – 2 – 86A/2239/CDV
1 CONTENTS
2 FOREWORD . 4
3 1 Scope . 6
4 2 Normative references . 6
5 3 Terms and definitions . 7
6 4 Construction . 7
7 4.1 General . 7
8 4.2 Optical fibres . 7
9 4.3 Multi-fibre unit . 8
10 4.4 Stranded core . 8
11 4.5 Strength and anti-buckling members . 8
12 4.6 Ripcord . 8
13 4.7 Cable sheath . 8
14 4.8 Sheath marking . 8
15 4.9 Examples of cable constructions . 8
16 5 Tests . 9
17 5.1 General . 9
18 5.2 Dimensions . 9
19 5.3 Mechanical requirements . 9
20 5.3.1 General . 9
21 5.3.2 Cable Impact . 9
22 5.3.3 Cable bending . 10
23 5.3.4 Cable repeated bending . 10
24 5.3.5 Cable torsion . 10
25 5.3.6 Abrasion resistance of cable marking . 11
26 5.4 Environmental requirements . 11
27 5.4.1 Temperature cycling . 11
28 6 Transmission requirements . 12
29 7 Fire performance . 12
30 Annex A (normative) Cable sample preparation for bending and temperature cycling
31 test . 13
32 Annex B (informative) Examples of cable constructions . 14
33 Bibliography . 17
34
35 Figure A.1 – Sample preparation and lengths for multiple multi-unit cables for use in
36 MPO connector terminated breakout cable assemblies . 13
37 Figure B.1 – Example of a cross-section of a 48-fibre breakout cable containing 12-
38 fibre units (with sheaths/tubes and strength members), without central strength
39 member . 14
40 Figure B.2 – Example of a cross-section of a 72-fibre breakout cable containing 12-
41 fibre units (with sheaths/tubes and strength members), with central strength member . 14
42 Figure B.3 – Example of a cross-section of a 48-fibre breakout cable containing 12-
43 fibre units (with tubes and without strength members), without central strength member . 15
44 Figure B.4 – Example of a cross-section of a 48-fibre cable containing 12-fibre bundles
45 with tie yarn, without central strength member . 15
46 Figure B.5 – Example of a cross-section of a 48-fibre cable containing 12-fibre partially
47 bonded fibre ribbons, without central strength member . 16
48
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49 Table 1 – Preferred low and high temperatures . 11
50
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51
52 INTERNATIONAL ELECTROTECHNICAL COMMISSION
53 ____________
54
55 OPTICAL FIBRE CABLES –
56
57 Part 2-24: Indoor optical fibre cables –
58 Detailed specification for multiple multi-fibre unit cables for use in MPO
59 connector terminated breakout cable assemblies
60
61 FOREWORD
62 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
63 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
64 international co-operation on all questions concerning standardization in the electrical and electronic fields. To
65 this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
66 Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
67 Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
68 in the subject dealt with may participate in this preparatory work. International, governmental and non-
69 governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
70 with the International Organization for Standardization (ISO) in accordance with conditions determined by
71 agreement between the two organizations.
72 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
73 consensus of opinion on the relevant subjects since each technical committee has representation from all
74 interested IEC National Committees.
75 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
76 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
77 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
78 misinterpretation by any end user.
79 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
80 transparently to the maximum extent possible in their national and regional publications. Any divergence
81 between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
82 the latter.
83 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
84 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
85 services carried out by independent certification bodies.
86 6) All users should ensure that they have the latest edition of this publication.
87 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
88 members of its technical committees and IEC National Committees for any personal injury, property damage or
89 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
90 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
91 Publications.
92 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
93 indispensable for the correct application of this publication.
94 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
95 patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
96 International Standard IEC 60794-2-24 has been prepared by subcommittee 86A: Fibres and
97 cables, of IEC technical committee 86: Fibre optics.
98 The text of this standard is based on the following documents:
FDIS Report on voting
86A/XX/FDIS 86A/XX/RVD
99
100 Full information on the voting for the approval of this International Standard can be found in
101 the report on voting indicated in the above table.
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IEC CDV 60794-2-24/Ed1 © IEC 2022 – 5 – 86A/2239/CDV
102 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
103 A list of all the parts in the IEC 60794 series, published under the general title Optical fibre
104 cables, can be found on the IEC website.
105 The committee has decided that the contents of this document will remain unchanged until the
106 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
107 the specific document. At this date, the document will be
108 • reconfirmed,
109 • withdrawn,
110 • replaced by a revised edition, or
111 • amended.
112
113
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114
115 OPTICAL FIBRE CABLES –
116
117 Part 2-24: Indoor optical fibre cables –
118 Detailed specification for multiple multi-fibre unit cables for use in MPO
119 connector terminated breakout cable assemblies
120
121
122
123 1 Scope
124 This part of IEC 60794 is a detail specification and specifies indoor multiple multi-fibre unit
125 cables for use in MPO (Multi-fibre Push On) connector terminated breakout cable assemblies.
126 2 Normative references
127 The following documents, in whole or in part, are normatively referenced in this document and
128 are indispensable for its application. For dated references, only the edition cited applies. For
129 undated references, the latest edition of the referenced document (including any
130 amendments) applies.
131 IEC 60793-1-20, Optical fibres – Part 1-20: Measurement methods and test procedures –
132 Fibre geometry
133 IEC 60793-1-21, Optical fibres – Part 1-21: Measurement methods and test procedures –
134 Coating geometry
135 IEC 60793-2, Optical fibres – Part 2: Product specifications – General
136 IEC 60793-2-10, Optical fibres – Part 2-10: Product specifications – Sectional specification for
137 category A1 multimode fibres
138 IEC 60793-2-50, Optical fibres – Part 2-50: Product specifications – Sectional specification for
139 class B single-mode fibres
140 IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General
141 IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test
142 procedures – General guidance
143 IEC 60794-1-21, Optical fibre cables – Part 1-21: Generic specification – Basic optical cable
144 test procedures – Mechanical tests methods
145 IEC 60794-1-22, Optical fibre cables – Part 1-22: Generic specification – Basic optical cable
146 test procedures – Environmental test methods
147 IEC 60794-1-31, Optical fibre cables - Part 1-31: Generic specification - Optical cable
148 elements - Optical fibre ribbon
149 IEC 60793-1-40, Optical fibres - Part 1-40: Attenuation measurement methods
150 IEC 60793-1-46, Optical fibres – Part 1-46: Monitoring of changes in optical transmittance
151 IEC 60794-2, Optical fibre cables – Part 2: Indoor cables – Sectional specification
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IEC CDV 60794-2-24/Ed1 © IEC 2022 – 7 – 86A/2239/CDV
152 IEC 60794-2-20, Optical fibre cables – Part 2-20: Indoor cables – Family specification for
153 multi-fibre optical cables
154 IEC 60794-2-23, Optical fibre cables – Part 2-23: Indoor optical fibre cables – Detailed
155 specification for multi-fibre cables for use in MPO connector terminated cable assemblies
156 IEC 60811-202, Electric and optical fibre cables – Test methods for non-metallic materials –
157 Part 202: General tests – Measurement of thickness of non-metallic sheath
158 IEC 60811-203, Electric and optical fibre cables – Test methods for non-metallic materials –
159 Part 203: General tests – Measurement of overall dimensions
160 3 Terms and definitions
161 For the purposes of this document, the terms and definitions given in IEC 60794-1-1 apply.
162 ISO and IEC maintain terminological databases for use in standardization at the following
163 addresses:
164 • IEC Electropedia: available at http://www.electropedia.org/
165 • ISO Online browsing platform: available at http://www.iso.org/obp
166 3.1
167 multi-fibre unit
168 cable element in cable core that contains and packages multiple coated fibres. A multi-fibre
169 unit might be:
170 —— a sheath/tube construction, loosely or not;
171 —— a fibre bundle with tie yarn;
172 —— a ribbon structure, in accordance with IEC 60794-1-31;
173 —— other possible constructions.
174 4 Construction
175 4.1 General
176 In addition to the constructional requirements in IEC 60794-2 and IEC 60794-2-20, the
177 following considerations apply to multiple multi-fibre unit cables for use in MPO connector
178 terminated breakout cable assemblies.
179 It is not the intention of this document to specify the finished terminated cable assembly
180 complete with terminations.
181 There shall be no fibre splice in any delivery length unless otherwise agreed by the customer
182 and the supplier.
183 It shall be possible to identify each individual fibre throughout the length of the cable.
184 4.2 Optical fibres
185 Multimode
...
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