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IEC 61238-1-1:2018

Compression and mechanical connectors for power cables - Part 1-1: Test methods and requirements for compression and mechanical connectors for power cables for rated voltages up to 1 kV (Um = 1,2 kV) tested on non-insulated conductors

Edition date: 2018-05-08
In Force
Available languages: English, French, Spanish
Summary: IEC 61238-1-1:2018 applies to compression and mechanical connectors for power cables for rated voltages up to 1 kV (Um = 1,2 kV), for example buried cables or cables installed in buildings, having
a) conductors complying with IEC 60228 having nominal cross-sectional areas between 2,5 mm2 and 1 200 mm2 for copper and between 16 mm2 and 1 200 mm2 for aluminium;
b) a maximum continuous conductor temperature not exceeding 90 °C.
This document is not applicable to connectors for overhead line conductors nor to connectors with a sliding contact.
The object of this document is to define the type test methods and requirements which apply to compression and mechanical connectors for power cables with copper or aluminium conductors. The reference method is to perform the tests on unused conductors.
This first edition, together with IEC 61238-1-2 and IEC 61238-1-3, cancels and replaces IEC 61238-1:2003.
This edition includes the following significant technical changes with respect to IEC 61238-­1:2003:
a) The scope has been widened to cover connectors for copper conductors from 10 mm2 down to 2,5 mm2 and has been limited to 1 200 mm2 for connectors for copper and aluminium conductors because test experience and applications are rare for conductors of larger cross-sectional areas.
b) Two new mechanical classes have been introduced to satisfy the demand for connectors subjected to no mechanical force and for connectors subjected to higher mechanical forces than those specified in Class 1 for conductors of larger cross-sectional areas.
c) For the electrical test, a maximum elevated heating current has been set in order to avoid unrealistic current densities during testing which may change properties of tested connectors.
d) For the short-circuit test, the method of calculation and requirements have been updated.
e) For the mechanical test, the methods and requirements have been updated.

L'IEC 61238-1-1:2018 est applicable aux raccords sertis et à serrage mécanique pour câbles d'énergie de tensions assignées inférieures ou égales à 1 kV (Um = 1,2 kV), par exemple pour les câbles enterrés ou ceux installés à l'intérieur des bâtiments, ayant
a) des âmes conformes à l'IEC 60228, de section nominale comprise entre 2,5 mm2 et 1 200 mm2 pour le cuivre et entre 16 mm2 et 1 200 mm2 pour l'aluminium;
b) une température maximale de fonctionnement en service permanent au plus égale à 90 °C.
Le présent document n'est pas applicable aux raccords pour conducteurs de ligne aérienne ni aux raccords équipés d'un contact glissant.
L'objet du présent document est de définir les méthodes d'essais de type et les exigences qui s'appliquent aux raccords sertis et à serrage mécanique utilisables sur les câbles d'énergie à conducteurs en cuivre ou en aluminium. La méthode de référence consiste à réaliser les essais sur des conducteurs neufs.
Cette première édition, conjointement avec l'IEC 61238-1-2 et l'IEC 61238-1-3, annule et remplace l'IEC 61238-1:2003.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC 61238-1:2003:
a) Le domaine d'application a été élargi afin de couvrir les raccords de connexion pour âmes en cuivre jusqu'à 2,5 mm2 (précédemment 10 mm2) et il a été limité à 1 200 mm2 pour les raccords utilisables sur les âmes en cuivre et en aluminium car les expériences et applications d'essai sont rares pour les âmes de fortes sections.
b) Deux nouvelles classes mécaniques ont été introduites pour répondre à la demande concernant les raccords non soumis aux forces mécaniques ainsi que les raccords soumis à des forces mécaniques supérieures à celles spécifiées en Classe 1 pour les âmes de fortes sections.
c) Pour l'essai électrique, un courant de chauffage maximal élevé a été défini afin d'éviter l'apparition de densités de courant irréalistes pendant l'essai, qui peuvent modifier les propriétés des raccords en essai.
d) Pour l'essai de court-circuit, la méthode de calcul et les exigences ont été mises à jour.
e) Pour l'essai mécanique, les méthodes et exigences ont été mises à jour.
ICS: 29.060.20-Cables
CTN: TC 20 - 1214

Otras Relaciones

Acuerdo de Frankfurt prEN IEC 61238-1-1

Reemplazo Normas

Reemplazada parcialmente a IEC 61238-1:2003

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