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SIST EN IEC 60794-1-404:2022

(Main)

Optical fibre cables - Part 1-404: Generic specification - Basic optical cable test procedures - Electrical test methods - Current-temperature test, Method H4 (IEC 60794-1-404:2022)

Optical fibre cables - Part 1-404: Generic specification - Basic optical cable test procedures - Electrical test methods - Current-temperature test, Method H4 (IEC 60794-1-404:2022)

This part of IEC 60794 applies to optical phase conductor (OPPC). An optical phase conductor is made of multiple metallic wires that are exposed to the environment without any insulating or protective sheath and contain optical fibres.
This part defines a test standard to determine the optical performance and temperature characteristics of a hybrid cable under the maximum current.

Lichtwellenleiterkabel - Teil 1-404: Fachgrundspezifikation - Grundlegende Prüfverfahren für Lichtwellenleiterkabel - Elektrische Prüfverfahren - Strom-Temperatur Prüfung, Verfahren H4 (IEC 60794-1-404:2022)

Câbles à fibres optiques - Partie 1-404: Spécification générique - Procédures fondamentales d’essais des câbles optiques - Méthodes d’essais électriques - Essai de courant-température, méthode H4 (IEC 60794-1-404:2022)

IEC 60794-1-404:2022 définit une norme d’essai visant à déterminer les performances optiques et les caractéristiques thermiques d’un câble hybride sous courant maximal. Le présent document s’applique aux conducteurs de phase à fibres optiques (OPPC). Un conducteur de phase optique est composé de plusieurs brins métalliques exposés à l’environnement sans gaine isolante ou de protection, et contient des fibres optiques.

Optični kabli - 1-404. del: Splošna specifikacija - Osnovni preskusni postopki za optične kable - Električne preskusne metode - Preskus trenutne temperature, metoda H4 (IEC 60794-1-404:2022)

Ta del standarda IEC 60794 se uporablja za optične linijske vodnike (OPPC). Optični linijski vodnik je izdelan iz več kovinskih žic, ki so izpostavljene okolju brez izolacije ali zaščitnega plašča in vsebujejo optična vlakna.
Ta del opredeljuje preskusni standard za določevanje optične zmogljivosti in temperaturnih lastnosti hibridnega kabla pri največjem toku.

General Information

Status
Published
Publication Date
04-Apr-2022
ICS
33.180.10 - Fibres and cables
Technical Committee
MOC - Mobile Communications
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Apr-2022
Due Date
06-Jun-2022
Completion Date
05-Apr-2022
Ref Project
EN IEC 60794-1-404:2022 - Optical fibre cables - Part 1-404: Generic specification - Basic optical cable test procedures - Electrical test methods - Current-temperature test, method H4

Overview

EN IEC 60794-1-404:2022 (IEC 60794-1-404) defines the current–temperature test (Method H4) for hybrid overhead cables known as optical phase conductors (OPPC). OPPCs are stranded, bare metallic conductors that include optical fibres and are exposed to the environment. This standard specifies the test setup, environmental conditions, sample preparation, monitoring methods and pass/fail criteria used to verify optical performance and temperature behaviour of OPPCs under maximum current loading.

Key topics and technical requirements

  • Scope: Applies specifically to OPPC (optical phase conductor) used on overhead lines.
  • Test objective: Confirm that conductor temperature and optical attenuation remain within agreed limits while carrying rated current.
  • Laboratory conditions: Natural convection lab, ambient 23 °C ± 5 °C, no wind or solar radiation.
  • Sample sizing: Cable sample length ≥ 6 m; optical fibre test length ≥ 100 m (splice allowed). At least one fibre per buffer tube/element must be monitored.
  • Instrumentation and setup:
    • Minimum two thermocouples placed in inner and outer cable layers; temperature logged every 5 minutes.
    • Test current held within ±3% stability; AC frequency and voltage controlled.
    • Optical attenuation monitored continuously at 1550 nm per IEC 60793-1-46 (alternative wavelength if mutually agreed).
    • Mechanical load: apply ≥ 20% of rated tensile strength (RTS) and maintain steady tension.
  • Procedure and duration: Apply operational current (calculated per IEC TR 61597 or agreed value); after stabilization keep test conditions for 24 hours.
  • Acceptance criteria:
    • Temperature on conductor must not exceed 85 °C (or a customer-agreed value).
    • An increase in optical attenuation > 0.15 dB/km at 1550 nm (permanent or temporary) is a failure.
  • Details to specify in contracts: conductor diameter, electrical resistance, wind and solar conditions, emissivity, aluminium temperature, RTS, initial sample temperature, acceptance limits, etc.

Applications and users

  • Who uses it: cable manufacturers, independent test laboratories, power utilities, telecom operators, procurement/specification engineers and R&D teams developing OPPC/hybrid overhead solutions.
  • Practical value:
    • Qualifies OPPC designs for combined power transmission and fibre communications.
    • Verifies optical attenuation stability under thermal loading from electrical current.
    • Supports specification, acceptance testing and product comparison for overhead hybrid cables.

Related standards

  • IEC 60793-1-46 - optical attenuation monitoring methods (used for 1550 nm monitoring)
  • IEC TR 61597 - calculation methods for stranded bare conductors (used to determine operational current)

Keywords: EN IEC 60794-1-404:2022, IEC 60794-1-404, optical fibre cables, OPPC, optical phase conductor, current-temperature test, Method H4, optical attenuation, 1550 nm, IEC 60793-1-46, IEC TR 61597.

SIST EN IEC 60794-1-404:2022SIST EN IEC 60794-1-404:2022
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Frequently Asked Questions

SIST EN IEC 60794-1-404:2022 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Optical fibre cables - Part 1-404: Generic specification - Basic optical cable test procedures - Electrical test methods - Current-temperature test, Method H4 (IEC 60794-1-404:2022)". This standard covers: This part of IEC 60794 applies to optical phase conductor (OPPC). An optical phase conductor is made of multiple metallic wires that are exposed to the environment without any insulating or protective sheath and contain optical fibres. This part defines a test standard to determine the optical performance and temperature characteristics of a hybrid cable under the maximum current.

This part of IEC 60794 applies to optical phase conductor (OPPC). An optical phase conductor is made of multiple metallic wires that are exposed to the environment without any insulating or protective sheath and contain optical fibres. This part defines a test standard to determine the optical performance and temperature characteristics of a hybrid cable under the maximum current.

SIST EN IEC 60794-1-404:2022 is classified under the following ICS (International Classification for Standards) categories: 33.180.10 - Fibres and cables. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase SIST EN IEC 60794-1-404:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-maj-2022
Optični kabli - 1-404. del: Splošna specifikacija - Osnovni preskusni postopki za
optične kable - Električne preskusne metode - Preskus trenutne temperature,
metoda H4 (IEC 60794-1-404:2022)
Optical fibre cables - Part 1-404: Generic specification - Basic optical cable test
procedures - Electrical test methods - Current-temperature test, Method H4 (IEC 60794-
1-404:2022)
Lichtwellenleiterkabel - Teil 1-404: Fachgrundspezifikation - Grundlegende Prüfverfahren
für Lichtwellenleiterkabel - Elektrische Prüfverfahren - Strom-Temperatur Prüfung,
Verfahren H4 (IEC 60794-1-404:2022)
Câbles à fibres optiques - Partie 1-404: Spécification générique - Procédures
fondamentales d’essais des câbles optiques - Méthodes d’essais électriques - Essai de
courant-température, méthode H4 (IEC 60794-1-404:2022)
Ta slovenski standard je istoveten z: EN IEC 60794-1-404:2022
ICS:
33.180.10 (Optična) vlakna in kabli Fibres and cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60794-1-404

NORME EUROPÉENNE
EUROPÄISCHE NORM March 2022
ICS 33.180.10
English Version
Optical fibre cables - Part 1-404: Generic specification - Basic
optical cable test procedures - Electrical test methods - Current-
temperature test, method H4
(IEC 60794-1-404:2022)
Câbles à fibres optiques - Partie 1-404: Spécification Lichtwellenleiterkabel - Teil 1-404: Fachgrundspezifikation -
générique - Procédures fondamentales d'essais des câbles Grundlegende Prüfverfahren für Lichtwellenleiterkabel -
optiques - Méthodes d'essais électriques - Essai de Elektrische Prüfverfahren - Strom-Temperatur Prüfung,
courant-température, méthode H4 Verfahren H4
(IEC 60794-1-404:2022) (IEC 60794-1-404:2022)
This European Standard was approved by CENELEC on 2022-03-17. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60794-1-404:2022 E

European foreword
The text of document 86A/2170/FDIS, future edition 1 of IEC 60794-1-404, prepared by SC 86A
"Fibres and cables" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN IEC 60794-1-404:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-12-17
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-03-17
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60794-1-404:2022 was approved by CENELEC as a
European Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60793-1-46 - Optical fibres - Part 1-46: Measurement EN 60793-1-46 -
methods and test procedures - Monitoring
of changes in optical transmittance
IEC TR 61597 - Overhead electrical conductors - - -
Calculation methods for stranded bare
conductors
IEC 60794-1-404 ®
Edition 1.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Optical fibre cables –
Part 1-404: Generic specification – Basic optical cable test procedures –

Electrical test methods – Current-temperature test, method H4

Câbles à fibres optiques –
Partie 1-404: Spécification générique – Procédures fondamentales d’essais des

câbles optiques – Méthodes d’essais électriques – Essai de

courant-température, méthode H4

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.180.10 ISBN 978-2-8322-1078-7

– 2 – IEC 60794-1-404:2022 © IEC 2022
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Method H4 – Current-temperature test . 5
4.1 Object . 5
4.2 Lab conditions . 5
4.3 Sample . 6
4.4 Apparatus . 6
4.5 Procedure . 6
4.6 Requirements . 7
4.7 Details to be specified . 7

Figure 1 – Current-temperature test set-up . 6

IEC 60794-1-404:2022 © IEC 2022 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-404: Generic specification –
Basic optical cable test procedures – Electrical test methods –
Current-temperature test, method H4

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-opera
...

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