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IEC 61857-21-ed.3.0
Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
STANDARD published on 13.5.2009
The information about the standard:
Designation standards: IEC 61857-21-ed.3.0
Publication date standards: 13.5.2009
SKU: NS-413833
The number of pages: 32
Approximate weight : 96 g (0.21 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 61857-21-ed.3.0 :
IEC 61857-21:2009 describes a general-purpose model (GPM) and a tall channel alternative model (GPM-TC) which can be used for the evaluation of wire-wound electrical insulation systems (EIS) where specific electrotechnical products are not available or required. The third edition cancels and replaces the second edition published in 2004, and constitutes editorial revisions to make this standard compatible with Parts 1 and 22. La CEI 61857-21:2009 decrit un modele dusage general (GPM) et un modele alternatif a chemin haut (GPM-TC) qui peuvent etre utilises pour evaluer les systemes disolation electrique (SIE) a enroulements a fil lorsque les produits electrotechniques specifiques ne sont pas disponibles ou pas requis. Cette troisieme edition annule et remplace la seconde edition publiee en 2004, et elle constitue une revision redactionnelle pour rendre la presente norme compatible avec les Parties 1 et 22.
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