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IEC 60794-4-20:2018

Optical fibre cables - Part 4-20: Sectional specification - Aerial optical cables along electrical power lines - Family specification for ADSS (all dielectric self-supported) optical cables

Edition date: 2018-08-28
In Force
Available languages: English, French
Summary: IEC 60794-4-20:2018 covers optical telecommunication cables, commonly with single-mode fibres used primarily in overhead power lines applications. The cables can also be used in other overhead utility networks, such as for telephony or TV services. Requirements of the sectional specification IEC 60794-4 for aerial optical cables along electrical power lines are applicable to cables covered by this document. This document covers the construction, mechanical, electrical, and optical performance, installation guidelines, acceptance criteria, test requirements, environmental considerations, and accessories compatibility for an all dielectric, self-supporting fibre optic (ADSS) cable. This document provides construction and performance requirements that ensure, within the guidelines of this document, that the required mechanical integrity of the cable components as well as optical fibre mechanical reliability and transmission parameters are maintained. The ADSS cable consists of single mode optical fibres contained in one or more protective dielectric fibre optic units surrounded by or attached to suitable dielectric strength members and sheaths. The cable does not contain metallic components. An ADSS cable is designed to meet the optical and mechanical requirements under different installation, operating and environmental conditions and loadings, as described in Annex B. This document excludes any "lashed" or "wrapped" OPAC cables included in IEC 60794-4. Figure 8 aerial cables are also excluded; they are specified in IEC 60794-3-20. This second edition cancels and replaces the first edition published in 2012 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- this document has been streamlined by cross-referencing IEC 60794-1-1,
- IEC 60794-4 (all parts) and IEC 60794-1-2;
- reference to the MICE table has been deleted;
- the example of test method for particular environment in Annex C has been deleted;
- creep test method has been updated in Annex E.
Keywords: optical telecommunication cables, single-mode fibres used primarily in overhead power lines

.L'IEC 60794-4-20:2018 couvre les câbles optiques de télécommunication généralement équipés de fibres unimodales, utilisés principalement dans des applications le long des lignes aériennes à haute tension. Les câbles peuvent également être utilisés dans d'autres réseaux de services aériens, tels que des services de téléphonie ou de télévision. Les exigences de la spécification intermédiaire IEC 60794-4 pour des câbles optiques aériens le long de lignes électriques de puissance sont applicables aux câbles couverts par le présent document. Le présent document couvre la construction, les performances mécaniques, électriques et optiques, les lignes directrices relatives à l'installation, les critères d'acceptation, les exigences relatives aux essais, les considérations sur l'environnement et la compatibilité des accessoires pour câble fibronique autoporteur entièrement diélectrique (ADSS: all dielectric self-supporting). Le présent document fournit des exigences de performances et de construction qui garantissent, par les lignes directrices du présent document, que sont maintenus l'intégrité mécanique exigée des composants du câble ainsi que les paramètres de transmission et la fiabilité mécanique des fibres optiques. Le câble ADSS est constitué de fibres optiques unimodales contenues dans une ou plusieurs unités fibroniques diélectriques de protection entourées de, ou fixées à des gaines et des éléments de rigidité diélectrique appropriée. Le câble ne contient pas de composants métalliques. Un câble ADSS est conçu pour satisfaire aux exigences mécaniques et optiques dans différentes conditions d’installations, de fonctionnement et d'environnement et pour différentes charges, comme cela est décrit à l'Annexe B.AnchorAnchorAnchorAnchor Le présent document exclut les câbles OPAC "lacés" ou "enroulés" inclus dans l'IEC 60794-4. Les câbles aériens figure-8 sont également exclus; ils sont spécifiés dans l'IEC 60794‑3-20. Cette deuxième édition annule et remplace la première édition parue en 2012 dont elle constitue une révision technique. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- le présent document a été simplifié par établissement de correspondances avec les normes IEC 60794-1-1, IEC 60794-4 (toutes les parties) et IEC 60794-1-2;
- la référence au tableau MICE a été supprimée;
- l'exemple de méthode d'essai pour un environnement particulier à l'Annexe C a été supprimé;
- la méthode d'essai de fluage a été mise à jour à l'Annexe E.
Mots-clés: câbles optiques de télécommunication, lignes aériennes à haute tension
ICS: 33.180.10-Fibres and cables
CTN: TC 86/SC 86A - 1398

Standards Cancellations

Anula a IEC 60794-4-20:2012

Otras Relaciones

Acuerdo de Frankfurt FprEN 60794-4-20:2018

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