EN 61857-21:2009
Current
The latest, up-to-date edition.
ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE MODELS - WIRE-WOUND APPLICATIONS
10-07-2009
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Construction
5 Number of test objects
6 Test procedures
7 End-of-life criterion
8 Analyzing, reporting and classification
Annex ZA (normative) - Normative references to international
publications with their corresponding European
publications
Bibliography
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.
| Committee |
SR 112
|
| DevelopmentNote |
Supersedes EN 61857-23. (12/2004)
|
| DocumentType |
Standard
|
| PublisherName |
European Committee for Standards - Electrical
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| UNE-EN 61857-21:2009 | Identical |
| I.S. EN 61857-21:2009 | Identical |
| CEI EN 61857-21 : 2012 | Identical |
| PN EN 61857-21 : 2009 | Identical |
| BS EN 61857-21:2009 | Identical |
| NEN EN IEC 61857-21 : 2009 | Identical |
| SN EN 61857-21 : 1999 | Identical |
| VDE 0302-21 : 2010 | Identical |
| DIN EN 61857-21 : 2010 | Identical |
| IEC 61857-21:2009 | Identical |
| NF EN 61857-21 : 2009 | Identical |
| NBN EN 61857-21 : 2009 | Identical |
| BS EN 61169-11:2017 | Identical |
| BS EN 61857-31:2017 | Electrical insulation systems. Procedures for thermal evaluation Applications with a designed life of 5 000 h or less |
| CEI EN 61857-31 : 1ED 2017 | ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE OF 5000 H OR LESS |
| BS EN 61858-1:2014 | Electrical insulation systems. Thermal evaluation of modifications to an established electrical insulation system (EIS) Wire-wound winding EIS |
| I.S. EN 61857-31:2017 | ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE OF 5000 H OR LESS |
| I.S. EN 61858-1:2014 | ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED ELECTRICAL INSULATION SYSTEM (EIS) - PART 1: WIRE-WOUND WINDING EIS |
| EN 61858-1:2014 | Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 1: Wire-wound winding EIS |
| EN 61857-31:2017 | Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less |
| IEC 60050-195:1998 | International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock |
| IEC 60505:2011 | Evaluation and qualification of electrical insulation systems |
| IEC 61857-1:2008 | Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage |
| EN 60505:2011/AC:2017-03 | EVALUATION AND QUALIFICATION OF ELECTRICAL INSULATION SYSTEMS (IEC 60505:2011/COR1:2017) |
| EN 61857-1:2009 | Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage |
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