IEC 60370-ed.2.0

Detail information

Designation: IEC 60370-ed.2.0

Publication date: 13/12/2017

Pages: 34

Country: International technical standard

Where to buy?

You can buy at www.mystandards.biz

Anotation

IEC 60370:2017 covers methods of test for the determination of thermal endurance (temperature index) of electrical insulating resins and varnishes for impregnation purposes. It is done by means of impregnating glass cloth and measuring electric strength or breakdown voltage before and after heat ageing. It covers the materials described in IEC 60455-3-5 and IEC 60464-3-2 and similar materials. This second edition cancels and replaces the first edition published in 1971. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- this document is now describing two methods, the existing one, following ASTM D1932 and new a method following the requirements of IEC 60455-2 and IEC 60464-2;
- the theoretical background and way of calculation were removed, and replaced by reference to IEC 60216;
- the layout and numbering system was updated;
- for better understanding and illustration purposes examples were added.
Keywords: thermal endurance testing IEC 60370:2017 traite des methodes d’essai qui permettent de determiner l’endurance thermique (indice de temperature) des resines et vernis isolants electriques d’impregnation. Cette endurance est determinee par impregnation de tissu de verre et en mesurant la rigidite dielectrique ou la tension de claquage avant et apres le vieillissement thermique. Elle couvre les materiaux decrits dans l’IEC 60455-3-5 et l’IEC 60464-3-2, ainsi que les materiaux analogues.Cette deuxieme edition annule et remplace la premiere edition parue en 1971. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a l’edition precedente:
- le present document decrit deux methodes, la methode existante conforme aux exigences de l’ASTM D1932 et une nouvelle methode conforme aux exigences de l’IEC 60455-2 et de l’IEC 60464-2;
- suppression et remplacement du contexte theorique et du mode de calcul par la reference a l’IEC 60216;
- actualisation de la presentation et du systeme de numerotation;
- ajout d’exemples pour une meilleure comprehension et representation.
Mots cles: d’essai d’endurance thermique