IEC 61857-21 Revised
IEC 61857-21:2004
Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications
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.
This edition constitutes a technical revision by merging Part 23 into Part 21.
CHFÂ 80.-
A more recent version of this publication exists:
IEC 61857-21:2009
Technical committee
TC 112 Evaluation and qualification of electrical insulating materials and systems| Publication type | International Standard |
| Publication date | 2004-08-27 |
| Edition | 2.0 |
| ICS | 29.080.30 |
| Withdrawal date | 2009-05-13 |
| ISBN number | 2831876397 |
| Pages | 29 |
| File size | 170.96 KB |