IEC 61857-21:2004
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
12-09-2022
English - French, Spanish, Castilian
27-08-2004
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.
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