Optical fibre cables - Part 1-124: Generic specification - Basic optical cable test procedures - Mechanical tests methods - Installation test for microduct cabling, Method E24 (IEC 60794-1-124:2025)

IEC 60794-1-124:2025 contains test procedures, referred to as Method E24, for evaluating the behaviour of microduct cabling (microduct optical cable, fibre unit or hybrid cable etc.) when blown into a microduct or protected microduct. This document describes two blowing track layouts: Method A consists of two mandrels and two long straight sections in between (same curvature). Method B consists of 3 mandrels. The middle mandrel forces the cable to experience both left- and right-hand bending, which is a feature of any realistic blowing route. In addition, this document describes an optional procedure to check the capability of blowing out an installed cable. This first edition cancels and replaces Method E24 of the first edition of IEC 60794‑1‑21 published in 2015 and Amendment 1:2020. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of a blowing route (see Figure 2) which includes a change in the direction of curvature. This was achieved by introducing a third mandrel;
b) addition of Annex A (Figure A.1 which shows a practical implementation of the blowing route;
c) addition of Annex B which describes the so-called Crash Test;
d) addition of Annex C which describes a cable blowing out procedure.

Lichtwellenleiterkabel - Teil 1-124: Fachgrundspezifikation - Grundlegende Prüfverfahren für Lichtwellenleiterkabel - Mechanische Prüfverfahren - Installationsprüfung für Mikrokabel, Verfahren E24 (IEC 60794-1-124:2025)

Câbles à fibres optiques - Partie 1-124: Spécification générique - Procédures fondamentales d’essais des câbles optiques - Méthodes d’essais mécaniques - Essai d’installation pour un câblage en microconduits, méthode e24 (IEC 60794-1-124:2025)

IEC 60794-1-124: 2025 donne les procédures d’essai, appelées Méthode E24, permettant d’évaluer le comportement d’un câblage en microconduits (câble optique en microconduits, unité de fibres, câble hybride, etc.) lors d’un soufflage appliqué dans un microconduit ou un microconduit protégé. Le présent document décrit deux dispositions de chemin de soufflage: La Méthode A se base sur deux mandrins, avec entre ceux-ci deux longues sections droites (de même courbure). La Méthode B se base sur 3 mandrins. Le mandrin central exerce une contrainte sur le câble pour définir à la fois des courbures vers la gauche et des courbures vers la droite, ce qui est caractéristique d’un chemin de soufflage réaliste. En outre, le présent document décrit une procédure facultative pour vérifier la capacité à extraire par soufflage un câble installé. Cette première édition annule et remplace la méthode E24 de la première édition de l’IEC 60794‑1‑21 parue en 2015 et son Amendement 1:2020. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) ajout d'un chemin de soufflage (voir la Figure 2), qui introduit un changement de direction dans la courbure. Cela a été possible en utilisant un troisième mandrin;
b) ajout de l'Annexe A (Figure A.1, qui présente une mise en œuvre pratique du chemin de soufflage);
c) ajout de l'Annexe B, qui décrit l'essai intitulé "essai de collision";
d) ajout de l'Annexe C, qui décrit une procédure d’extraction par soufflage d'un câble.

Optični kabli - 1-124. del: Splošna specifikacija - Osnovni preskusni postopki za optične kable - Mehanske preskusne metode - Preskus namestitve za okablenje mikrokanalov, metoda E24 (IEC 60794-1-124:2025)

General Information

Status
Not Published
Public Enquiry End Date
20-Jun-2024
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
06-Aug-2025
Due Date
11-Oct-2025

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SLOVENSKI STANDARD
oSIST prEN IEC 60794-1-124:2024
01-junij-2024
Optični kabli - 1-124. del: Splošna specifikacija - Osnovni preskusni postopki za
optične kable - Mehanske preskusne metode - Preskus namestitve za okablenje
mikrokanalov, metoda E24
Optical fibre cables - Part 1-124: Generic specification - Basic optical cable test
procedures - Mechanical tests methods - Installation test for microduct cabling, Method
E24
Câbles à fibres optiques - Partie 1-124: Spécification générique - Procédures
fondamentales d’essais des câbles optiques - Méthodes d’essais mécaniques - Essai
d’installation pour un câblage en microconduits, méthode e24
Ta slovenski standard je istoveten z: prEN IEC 60794-1-124:2024
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
oSIST prEN IEC 60794-1-124:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 60794-1-124:2024

oSIST prEN IEC 60794-1-124:2024
86A/2434/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60794-1-124 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-03-29 2024-06-21
SUPERSEDES DOCUMENTS:
86A/2363/CD, 86A/2429/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
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.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses
to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC
clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Optical fibre cables - Part 1-124: Generic specification - Basic optical cable test procedures - Mechanical
tests methods - Installation test for microduct cabling, Method E24

PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
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 60794-1-124:2024
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1 CONTENTS
3 FOREWORD . 3
4 INTRODUCTION . 5
5 1 Scope . 6
6 2 Normative references . 6
7 3 Terms and definitions . 6
8 4 Sample . 6
9 5 Apparatus . 6
10 6 Ambient conditions . 7
11 7 Procedure . 7
12 8 Requirements . 8
13 9 Details to be specified . 8
14 10 Details to be reported . 9
15 11 Test track setup . 10
16 Annex A (informative) Test track . 13
17 A.1 Practical implementation of the blowing route (3 mandrels configuration) . 13
18 Annex B (informative) Crash test . 14
19 B.1 Crash Test . 14
20 Annex C (informative) Blowing out . 15
21 C.1 Blowing out the cable . 15
22 The blowing out test has passed if the initial blowing length could be removed in
23 onpiece. . 15
24 Bibliography . 16
25 Figure 1 – Schematic representation of test tracks . Error! Bookmark not defined.
26 a) – Schematic representation of test track: protected microduct, with leg-length L (=
27 100 m) and mandrel radius of R = 20 x OD, OD = duct outer diameter . 10
28 Figure 2 – Schematic diagram of the test section for installation testing of microduct
29 fibre optical cables . 12
30 Figure A.1 – Schematic diagram of the test section for installation testing of microduct
31 fibre optical cables . 13
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IEC CD 60794-1-124/Ed1 © IEC 2023 – 3 – 86A/2434/CD

35 INTERNATIONAL ELECTROTECHNICAL COMMISSION
36 ____________
38 OPTICAL FIBRE CABLES
40 Part 1-124: Generic specification – Basic optical cable test procedures –
41 Mechanical tests methods - Installation test for microduct cabling, Method
42 E24
45 FOREWORD
46 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
47 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
48 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
49 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
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54 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
55 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
56 consensus of opinion on the relevant subjects since each technical committee has representation from all
57 interested IEC National Committees.
58 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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60 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
61 misinterpretation by any end user.
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72 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
73 Publications.
74 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
75 indispensable for the correct application of this publication.
76 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
77 rights. IEC shall not be held responsible for identifying any or all such patent rights.
78 IEC 60794-1-124 has been prepared by subcommittee 86A: Fibres and cables: of IEC technical
79 committee 86: Fibre optics. It is an International Standard,.
80 This first edition cancels and replaces Method E24 of IEC 60794-1-21edition 1.1 published in
81 2020, This edition constitutes a technical revision.
82 This edition includes the following significant technical changes with respect to the previous
83 edition:
84 a) An additional blowing route (see figure 2) was added which includes a change of the
85 direction of curvature. This was achieved by introducing a third mandrel.
86 b) Annex A (figure. A.1) shows a practical implementation of the blowing route
87 c) A procedure to blow out a cable is described.in clause 12
88 d) The so called Crash Test is described in the Annex B

oSIST prEN IEC 60794-1-124:2024
IEC CD 60794-1-124/Ed1 © IEC 2023 – 4 – 86A/2434/CD

89 The text of this International Standard is based on the following documents:
Draft Report on voting
XX/XX/FDIS XX/XX/RVD
91 Full information on the voting for its approval can be found in the report on voting indicated in
92 the above table.
93 The language used for the development of this International Standard is English.
94 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
95 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
96 at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
97 described in greater detail at www.iec.ch/publications.
98 The committee has decided that the contents of this document will remain unchanged until the
99 stability date indicated on the IEC website under webstore.iec.ch in the data related to the
100 specific document. At this date, the document will be
101 • reconfirmed,
102 • withdrawn,
103 • replaced by a revised edition, or
104 • amended.
oSIST prEN IEC 60794-1-124:2024
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106 INTRODUCTION
107 The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed
108 that compliance with this document may involve the use of a patent. IEC takes no position
109 concerning the evidence, validity, and scope of this patent right.
110 The holder of this patent right has assured IEC that s/he is willing to negotiate licences under
111 reasonable and non-discriminatory terms and conditions with applicants throughout the world.
112 In this respect, the statement of the holder of this patent right is registered with IEC. Information
113 may be obtained from the patent database available at patents.iec.ch/.
114 Attention is drawn to the possibility that some of the elements of this document may be the
115 subject of patent rights other than those in the patent database. IEC shall not be held
116 responsible for identifying any or all such patent rights.
117 The national working committee DKE/UK 412.6 "Optical fibres and optical fiber cables" of the
118 DKE German Commission for Electrical, Electronic & Information Technologies (www.dke.de)
119 is responsible for this document.
120 This document was prepared in cooperation with DKE/UK 412.6 "Optical fibr es and optical fibre
121 cables" and DKE/GAK 412.6.6 "FTTX".
122 A VDE “application rule” was published in Germany [1].
123 Attention is drawn to the possibility that some elements of this document may affect patent
124 rights. VDE is not responsible for identifying some or all the patent rights involved.
125 Two different blowing routes are presented in that document which can be used to
126 characterize the blowing performance of microduct cables. The first track (figure 1, Method
127 A) is identical with the track which has been used in the standard IEC 60794 -21 method E24
128 since many years. Even though the track seems to be very simple to build, it was not used by
129 many facilities because of its long length. 100 m length requires lot of space which often is not
130 available in the facilities. It also se
...

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