SIST EN IEC 60794-1-402:2021

Optical fibre cables - Part 1-402: Generic specification - Basic optical cable test procedures - Electrical test methods - Lightning test (for OPGW, OPPC and OPAC), Method H2 (IEC 60794-1-402:2021)

This test is intended to evaluate the impact of a lightning strike on an OPGW, OPPC or OPAC.

Lichtwellenleiterkabel - Fachgrundspezifikation - Teil 402: Elektrische Prüfverfahren - Blitzeinschlagsimulation (für Lichtwellenleitererdseil, Lichtwellenleiterphasenseil, Lichtwellenleiterkabel befestigt am Phasenseil) Verfahren H2 (IEC 60794-1-402:2021)

Câbles à fibres optiques - Procédures fondamentales d’essais des câbles optiques - Partie 402: Méthodes d’essais électriques - Essai foudre (pour les OPGW, les OPPC et les OPAC), Méthode H2 (IEC 60794-1-402:2021)

IEC 60794-1-402:2021 s’applique à l’essai destiné à évaluer l’impact d’un coup de foudre sur un câble de garde à fibres optiques (OPGW), un conducteur de phase à fibres optiques (OPPC) ou un câble optique attaché (OPAC). Cette première édition annule et remplace la première édition de l'IEC 60794-1-24 publiée en 2014. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) les câbles OPPC sont inclus.

Optični kabli - 1-402. del: Splošna specifikacija - Osnovni preskusni postopki za optične kable - Električne preskusne metode - Preskus odpornosti proti delovanju strele (za OPGW, OPPC in OPAC), metoda H2 (IEC 60794-1-402:2021)

General Information

• Status: Published
• Publication Date: 12-Oct-2021
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 23-Sep-2021
• Due Date: 28-Nov-2021
• Completion Date: 13-Oct-2021
• Ref Project: EN IEC 60794-1-402:2021 - Optical fibre cables - Part 1-402: Generic specification - Basic optical cable test procedures - Electrical test methods - Lightning test (for OPGW, OPPC and OPAC), Method H2

Relations

• Replaces: SIST EN 60794-1-24:2014 - Optical fibre cables - Part 1-24: Generic specification - Basic optical cable test procedures - Electrical test methods
• Effective Date: 17-Aug-2021

Overview

EN IEC 60794-1-402:2021 (Method H2) specifies a lightning test for optical fibre cables used as overhead conductors - specifically OPGW (optical ground wire), OPPC (optical phase conductor) and OPAC (optical attached cable). Published by CLC/CENELEC and identical to IEC 60794-1-402:2021, this document defines the purpose, sample requirements, test arrangement and electrical parameters to evaluate the mechanical and optical effects of a simulated lightning strike.

Key topics and requirements

• Scope and purpose

  • Test is intended to evaluate the impact of a lightning strike and to compare performance between cable designs.
  • For OPAC the cable is installed on the messenger to simulate real installation; aim is to verify sheath integrity and limited fibre damage.

• Sample and monitoring

  • Test sample taken at cable mid-point; at least 10 m between anchoring clamps.
  • Optical attenuation measurement per IEC 60793-1-46; optical test loop length > 100 m.
  • Preferably monitor at least 24 fibres (concatenated) or all fibres if fewer; samples should represent multiple units equally.

• Apparatus and setup

  • Electrode (copper/iron rod) positioned above metallic cable, connected to cable by a metal fuse; gap ≈ 6 cm between electrode and cable surface.
  • Thermocouples, insulators, anchoring clamps and symmetric earthing connectors are used per the arrangement in the standard.
  • Applied tensile load on metallic cable sample is everyday stress (EDS) = 15 % ± 5 % of rated tensile strength (RTS), unless otherwise agreed.

• Electrical test parameters (Method H2)

  • Four test classes defined (0–3) with fixed current, duration and charge transfer:
    • Class 0: 100 A, 0.5 s, 50 C
    • Class 1: 200 A, 0.5 s, 100 C
    • Class 2: 300 A, 0.5 s, 150 C
    • Class 3: 400 A, 0.5 s, 200 C
  • Parameters may be selected or agreed between customer and supplier according to cable construction.

• Outcomes

  • Test checks for melting effects, sheath damage, and change in optical transmittance to determine acceptability.

Applications and users

• Who uses it: fibre‑optic cable manufacturers, utilities (transmission/distribution operators), design engineers, independent test laboratories, procurement and standards compliance teams.
• Why use it: to validate lightning robustness of overhead optical cables, compare alternative cable designs, support product qualification and procurement specifications, and reduce risk of service disruption after lightning events.

Related standards

• IEC 60794-1-1 - Generic specification, general requirements
• IEC 60793-1-46 - Optical fibres: monitoring changes in optical transmittance
• Supersedes/partially replaces: IEC 60794-1-24:2014

Keywords: optical fibre cables, lightning test, OPGW, OPPC, OPAC, Method H2, IEC 60794, electrical test methods, cable qualification.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2021
Nadomešča:
SIST EN 60794-1-24:2014
Optični kabli - 1-402. del: Splošna specifikacija - Osnovni preskusni postopki za
optične kable - Električne preskusne metode - Preskus odpornosti proti delovanju
strele (za OPGW, OPPC in OPAC), metoda H2 (IEC 60794-1-402:2021)
Optical fibre cables - Part 1-402: Generic specification - Basic optical cable test
procedures - Electrical test methods - Lightning test (for OPGW, OPPC and OPAC),
Method H2 (IEC 60794-1-402:2021)
Lichtwellenleiterkabel - Fachgrundspezifikation - Teil 402: Elektrische Prüfverfahren -
Blitzeinschlagsimulation (für Lichtwellenleitererdseil, Lichtwellenleiterphasenseil,
Lichtwellenleiterkabel befestigt am Phasenseil) Verfahren H2 (IEC 60794-1-402:2021)
Câbles à fibres optiques - Procédures fondamentales d’essais des câbles optiques -
Partie 402: Méthodes d’essais électriques - Essai foudre (pour les OPGW, les OPPC et
les OPAC), Méthode H2 (IEC 60794-1-402:2021)
Ta slovenski standard je istoveten z: EN IEC 60794-1-402:2021
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 60794-1-402

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 33.180.10 Supersedes EN 60794-1-24:2014 (partially)
English Version
Optical fibre cables - Part 1-402: Generic specification - Basic
optical cable test procedures - Electrical test methods - Lightning
test (for OPGW, OPPC and OPAC), Method H2
(IEC 60794-1-402:2021)
Câbles à fibres optiques - Procédures fondamentales Lichtwellenleiterkabel - Fachgrundspezifikation - Teil 402:
d'essais des câbles optiques - Partie 402: Méthodes Elektrische Prüfverfahren - Blitzeinschlagsimulation (für
d'essais électriques - Essai foudre (pour les OPGW, les Lichtwellenleitererdseil, Lichtwellenleiterphasenseil,
OPPC et les OPAC), Méthode H2 Lichtwellenleiterkabel befestigt am Phasenseil) Verfahren
(IEC 60794-1-402:2021) H2
(IEC 60794-1-402:2021)
This European Standard was approved by CENELEC on 2021-08-31. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60794-1-402:2021 E

European foreword
The text of document 86A/2045/CDV, future edition 1 of IEC 60794-1-402, 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 60794-1-402:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022–05–31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–08–31
document have to be withdrawn
This document partially supersedes EN 60794-1-24:2014 and all of its amendments and corrigenda (if
any).
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 60794-1-402:2021 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60794-1-2 NOTE Harmonized as EN IEC 60794-1-2
IEC 60794-1-24:2014 NOTE Harmonized as EN 60794-1-24:2014 (not modified)
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 60794-1-1 - Optical fibre cables - Part 1–1: Generic EN 60794-1-1 -
specification - General
IEC 60794-1-402 ®
Edition 1.0 2021-07
INTERNATIONAL
STANDARD
Optical fibre cables –
Part 1-402: Generic specification – Basic optical cable test procedures –

Electrical test methods – Lightning test (for OPGW, OPPC and OPAC),

Method H2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.180.10 ISBN 978-2-8322-1008-5

– 2 – IEC 60794-1-402:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 6
4 General . 6
5 Sample . 7
6 Apparatus . 7
7 Procedure . 8
8 Requirements . 8
9 Details to be specified . 8
Bibliography . 10

Figure 1 – Lightning test arrangement . 7

Table 1 – Test parameters . 8
Table 2 – Details to be specified for each lightning strike . 9

IEC 60794-1-402:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
OPTICAL FIBRE CABLES –
Part 1-402: Generic specification – Basic optical cable
test procedures – Electrical test methods – Lightning test
(for OPGW, OPPC and OPAC), Method H2

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-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form
...