Titre : |
Beyond the limits of the comparative tracking index : Testing isolating materials above 600V |
Type de document : |
texte imprimé |
Auteurs : |
Wim Denissen, Auteur ; Shimon Kanai, Auteur ; Naoto Sugai, Auteur ; Andreas Weinmann, Auteur |
Année de publication : |
2020 |
Article en page(s) : |
p. 47-49 |
Langues : |
Anglais (eng) |
Catégories : |
Composites à fibres de verre Essais dynamiques Isolants électriques Matières plastiques dans les automobiles Polyamide 9 Polymères (isolants électriques) Polyphthalamide Polysulfures de phénylène Résistance au fluage Véhicules électriques
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Index. décimale : |
668.4 Plastiques, vinyles |
Résumé : |
The voltage test of the comparative tracking index is limited to 600 V so far. In many areas the voltages increase, especially for electrical vehicles. Therefore, it is interesting to know what the real limits of isolating materials are. These are considerably higher. To test these, a modified test set-up is necessary.
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Note de contenu : |
- Standard measurement setup prevents tests
- High CTI thanks to glass fibers
- CTI measured according to IEC 60112
- Fig. 1 : The creepage distance, i.e. the shortest distance between two conductive parts along the surface is usually longer than the air gap, the shortest distance between two conductive parts
- Fig. 2 : At over 600V, the measurement setupprovided by the standard causes a short circuit through the air. For this reason, the electrodes were turned by 180° for the tests
- Table 1 : Different PLC-classes according to the failure voltage
- Table 2 : Overview of the Genestar types tested : three of them show no tracking even at 750V |
En ligne : |
https://drive.google.com/file/d/16hOXKcNUAGTSvSYpGJtby1OByQvh8E_y/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33840 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 1 (01/2020) . - p. 47-49