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Norma
IEC 61857-21:2004

IEC 61857-21:2004

Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications

Systèmes d'isolation électriques - Procédures d'évaluation thermique - Partie 21: Exigences particulières pour les modèles d'usage général - Applications aux enroulements à fil

Fecha:
2009-05-13 /Anulada
Resumen (inglés):
Describes a general-purpose model (GPM) and a tall channel alternative model (GPM-TC) which can be used for the evaluation of wire-wound EIS where specific electrotechnical products are not available or required. This edition constitutes a technical revision by merging Part 23 into Part 21.
Resumen (francés):
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