EN IEC 60794-1-201:2024

SLOVENSKI STANDARD
oSIST prEN IEC 60794-1-201:2023
01-maj-2023
Optični kabli - 1-201. del: Splošna specifikacija - Osnovni preskusni postopki za
optične kable - Ciklične temperaturne spremembe, metoda F1
Optical fibre cables - Part 1-201: Generic specification - Basic optical cable test
procedures - Temperature cycling, Method F1
Ta slovenski standard je istoveten z: prEN IEC 60794-1-201:2023
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
oSIST prEN IEC 60794-1-201:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 60794-1-201:2023

oSIST prEN IEC 60794-1-201:2023
86A/2290/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60794-1-201 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-03-17 2023-06-09
SUPERSEDES DOCUMENTS:
86A/2230/CD, 86A/2280/CC
IEC SC 86A : FIBRES AND CABLES
SECRETARIAT: SECRETARY:
France Mr Laurent Gasca
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

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
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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,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are
reminded that the enquiry stage is the final stage for submitting "in some countries" clauses. See AC/22/2007.

TITLE:
Optical fibre cables - Part 1-201: Generic specification - Basic optical cable test procedures -
Temperature cycling, Method F1

PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
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.

oSIST prEN IEC 60794-1-201:2023
IEC CDV 60794-1-201/Ed1 © IEC 2023 – 2 – 86A/2290/CDV
1 CONTENTS
2 CONTENTS . 1
3 FOREWORD . 3
4 1 Scope . 5
5 2 Normative references . 5
6 3 Terms and definitions . 5
7 4 Method F1 – Temperature cycling . 5
8 4.1 Object . 5
9 4.2 Sample . 6
10 4.3 Apparatus . 7
11 4.4 Procedure . 7
12 4.4.1 Preconditioning . 7
13 4.4.2 Initial measurement . 7
14 4.4.3 Conditioning . 7
15 4.4.4 Recovery . 9
16 4.5 Requirements . 9
17 4.6 Details to be specified . 10
18 4.7 Details to be reported . 10
19 Bibliography . 11
21 Figure 1 – Initial cycle(s) procedure . 9
22 Figure 2 – Final cycle procedure . 9
24 Table 1 – Minimum soak time t . 8
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26 INTERNATIONAL ELECTROTECHNICAL COMMISSION
27 ____________
29 OPTICAL FIBRE CABLES –
31 Part 1-201: Generic specification –
32 Basic optical cable test procedures –
33 Temperature cycling, method F1
35 FOREWORD
36 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
37 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
38 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
39 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
40 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
41 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
42 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
43 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
44 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
45 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
46 consensus of opinion on the relevant subjects since each technical committee has representation from all
47 interested IEC National Committees.
48 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
49 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
50 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
51 misinterpretation by any end user.
52 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
53 transparently to the maximum extent possible in their national and regional publications. Any divergence between
54 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
55 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
56 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
57 services carried out by independent certification bodies.
58 6) All users should ensure that they have the latest edition of this publication.
59 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
60 members of its technical committees and IEC National Committees for any personal injury, property damage or
61 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
62 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
63 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
64 indispensable for the correct application of this publication.
65 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
66 rights. IEC shall not be held responsible for identifying any or all such patent rights.
67 International Standard IEC 60794-1-201 has been prepared by subcommittee 86A: Fibres and
68 cables, of IEC technical committee 86: Fibre optics.
69 This first edition of IEC 60794-1-201 cancels and replaces Method F1 of the second edition of
70 IEC 60794-1-22: 2017. It constitutes a technical revision.
71 This edition includes the following significant technical changes with respect to the previous
72 edition:
73 a) remove all references to the temperature sensing device and replace with note “for further
74 study”;
75 b) separate the conditioning procedure into Procedure 1 and Procedure 2 to avoid confusion;
76 c) define the ambient temperature test condition as per IEC 60794-1-2;
77 d) decrease the minimum soak time for sample mass larger than 16 kg in table 1.
78 The text of this International Standard is based on the following documents:

oSIST prEN IEC 60794-1-201:2023
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FDIS Report on voting
XX/XX/FDIS XX/XX/RVD
80 Full information on the voting for the approval of this International Standard can be found in the
81 report on voting indicated in the above table.
82 The French version of this standard has not been voted upon.
83 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
84 A list of all parts in the IEC 60794 series, published under the general title Optical fibre cables,
85 can be found on the IEC website.
86 The committee has decided that the contents of this document will remain unchanged until the
87 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
88 the specific document. At this date, the document will be
89 • reconfirmed,
90 • withdrawn,
91 • replaced by a revised edition, or
92 • amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.
oSIST prEN IEC 60794-1-201:2023
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96 OPTICAL FIBRE CABLES –
98 Part 1-201: Generic specification –
99 Basic optical cable test procedures –
100 Temperature cycling, method F1
103 1 Scope
104 This part of IEC 60794-1 defines test procedures to be used in establishing uniform
105 requirements for the environmental performance of
106 • optical fibre cables for use with telecommunication equipment and devices employing similar
107 techniques, and
108 • cables having a combination of both optical fibres and electrical conductors.
109 Throughout this document, the wording "optical cable" can also include optical fibre units,
110 microduct fibre units, etc.
111 This document defines a test standard to determine the ability of a cable to withstand the effects
112 of temperature cycling by observing changes in attenuation.
113 See IEC 60794-1-2 for a reference guide to test methods of all types and for general
114 requirements and definitions.
115 2 Normative references
116 The following documents are referred to in the text in such a way that some or all of their content
117 constitutes requirements of this document. For dated references, only the edition cited applies.
118 For undated references, the latest edition of the referenced document (including any
119 amendments) applies.
120 IEC 60068-2-14:2009, Environmental testing – Part 2-14: Tests – Test N: Change of
121 temperature
122 IEC 60793-1-46, Optical fibres – Part 1-46: Measurement methods and test procedures –
123 Monitoring of changes in optical transmittance
124 IEC 60794-1-1, Optical fibre cables – Part 1-1: Generic specification – General
125 IEC 60794-1-2, Optical fibre cables – Part 1-2: Generic specification – Basic optical cable test
126 procedures – General guidance
127 3 Terms and definitions
128 No terms and definitions are listed in this document.
129 ISO and IEC maintain terminological databases for use in standardization at the following
130 addresses:
131 • IEC Electropedia: available at http://www.electropedia.org/
132 • ISO Online browsing platform: available at http://www.iso.org/obp
133 4 Method F1 – Temperature cycling
134 4.1 Object
135 This measuring method applies to optical fibre cables, which are tested by temperature cycling
136 in order to determine the stability behaviour of the attenuation of cables submitted to

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137 temperature changes. This method can also be used for evaluation of buffer tubes or other
138 elements independent of a cable construction, as defined by a detail specification.
139 Changes in the attenuation of optical fibre cables, which can occur with changing temperature,
140 are generally the result of buckling or tensioning of the fibres resulting from differences between
141 their thermal expansion coefficient and the coefficients of the cable strength and sheath
142 members. Test conditions for temperature-dependent measurements shall simulate the worst
143 conditions.
144 This test can be used either for monitoring cable behaviour in the temperature range, which can
145 occur during storage, transportation and usage, or to check, in a selected temperature range
146 (usually wider than
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