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SN EN 61857-21 : 1999

Current

Current

The latest, up-to-date edition.

ELECTRICAL INSULATION SYSTEMS - PROCEDURES FOR THERMAL EVALUATION - PART 21: SPECIFIC REQUIREMENTS FOR GENERAL-PURPOSE MODEL - WIRE-WOUND APPLICATIONS

Published date

12-01-2013

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INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Construction
  4.1 General information
  4.2 Model components
  4.3 Assembly of the model
5 Number of test objects
6 Test procedures
  6.1 General
  6.2 Initial screening tests
  6.3 Thermal endurance test
7 End-of-life criterion
8 Analyzing, reporting and classification

Specifies 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.

DocumentType
Standard
PublisherName
Swiss Standards
Status
Current

Standards Relationship
UNE-EN 61857-21:2009 Identical
EN 61857-21:2009 Identical
I.S. EN 61857-21:2009 Identical
BS EN 61857-21:2009 Identical
DIN EN 61857-21 : 2010 Identical
IEC 61857-21:2009 Identical
NF EN 61857-21 : 2009 Identical
NBN EN 61857-21 : 2009 Identical

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