IEC 61857-21:2004
Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications

Standard No.

IEC 61857-21:2004

Release Date

2004

Published By

International Electrotechnical Commission (IEC)

Status

Be replaced 2009-05

Replace By

IEC 61857-21:2009

Latest

IEC 61857-21:2009

Scope

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 revi

IEC 61857-21:2004 history

• 2009 IEC 61857-21:2009 Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
• 2004 IEC 61857-21:2004 Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
• 1998 IEC 61857-21:1998 Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose model - Wire-wound applications