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SSH EN 61857-21:2009

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

Dec 29, 2009

General information

60.60     Jan 1, 2009

DPS

DPS/KT 4

European Norm

29.080.30  

English  

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
SSH EN 61857-21:1999

NOW

PUBLISHED
SSH EN 61857-21:2009
60.60 Standard published
Jan 1, 2009

Related project

Adopted from EN 61857-21:2009

Adopted from IEC 61857-21 Ed. 3.0 b