IEC 61857-22:2008
Current
The latest, up-to-date edition.
Electrical insulation systems - Procedures for thermal evaluation - Part 22: Specific requirements for encapsulated-coil model - Wire-wound electrical insulation system (EIS)
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
English - French, Spanish, Castilian
07-25-2008
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Construction
4.1 General information
4.2 ECM components
4.3 Assembly of the ECM
4.4 Similarity of reference and candidate ECM
5 Number of test objects
6 Test procedure
6.1 General
6.2 Initial screening test
6.2.1 General
6.2.2 Initial dielectric test
6.3 Thermal endurance test
6.3.1 Endurance test cycle
6.3.2 Thermal ageing
6.3.3 Mechanical stress
6.3.4 Thermal shock
6.3.5 Moisture exposure
6.3.6 Dielectric diagnostic test
7 End-of-life criterion
8 Analysing, reporting and classification
Annex A (informative) Similarity of reference and
candidate specimens
Bibliography
IEC 61857-22:2008 provides a general-purpose procedure for the evaluation of wire-wound systems using a general purpose encapsulated-coil model (ECM) where the application is unknown. This second edition cancels and replaces the first edition published in 2002, and constitutes editorial revisions to make this standard compatible with Parts 1 and 21.
| Committee |
TC 112
|
| DevelopmentNote |
Stability Date: 2018. (11/2012)
|
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NEN EN IEC 61857-22 : 2008 | Identical |
| PN EN 61857-22 : 2008 | Identical |
| SAC GB/T 20111-3 : 2016 | Identical |
| VDE 0302-22 : 2009 | Identical |
| BS EN 61857-22:2008 | Identical |
| EN 61857-22:2008 | Identical |
| CEI EN 61857-22 : 2010 | Identical |
| NF EN 61857-22 : 2009 | Identical |
| DIN EN 61857-22 : 2009 | Identical |
| UNE-EN 61857-22:2009 | Identical |
| I.S. EN 61857-22:2008 | Identical |
| 06/30146693 DC : DRAFT FEB 2006 | |
| BS EN 61857-31:2017 | Electrical insulation systems. Procedures for thermal evaluation Applications with a designed life of 5 000 h or less |
| 08/30177151 DC : DRAFT JAN 2008 | BS EN 61858 - ELECTRICAL INSULATION SYSTEMS - THERMAL EVALUATION OF MODIFICATIONS TO AN ESTABLISHED WIRE-WOUND EIS |
| 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 |
| IEC TR 61857-2:2015 | Electrical insulation systems - Procedures for thermal evaluation - Part 2: Selection of the appropriate test method for evaluation and classification of electrical insulation systems |
| PD IEC/TR 61857-2:2015 | Electrical insulation systems. Procedures for thermal evaluation Selection of the appropriate test method for evaluation and classification of electrical insulation systems |
| 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 |
| IEC 61857-31:2017 | Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less |
| 16/30333476 DC : 0 | BS EN 61857-31 - ELECTRICAL INSULATION SYSTEMS-PROCEDURES FOR THERMAL EVALUATION - PART 31: APPLICATIONS WITH A DESIGNED LIFE LESS THAN 5000 HOURS |
| 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 61857-1:2008 | Electrical insulation systems - Procedures for thermal evaluation - Part 1: General requirements - Low-voltage |
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