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BS EN 61857-1:2009

BS EN 61857-1:2009

Current

Current

The latest, up-to-date edition.

Electrical insulation systems. Procedures for thermal evaluation General requirements. Low-voltage

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

09-30-2009

Publisher

British Standards Institution

INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 General information
  4.1 Overview of test procedure
  4.2 Basis of evaluation and qualification
  4.3 Specific requirements
5 Test objects
  5.1 General
  5.2 Description
  5.3 Number of test objects
6 Test procedures
  6.1 General
  6.2 Initial screening tests
  6.3 Thermal ageing
  6.4 Prediagnostic mechanical stress
  6.5 Other prediagnostic conditioning
  6.6 Moisture exposure
  6.7 Dielectric diagnostic tests
  6.8 Other diagnostic tests
7 Analyzing, reporting, and classification
  7.1 End-point criterion
  7.2 Method of determining life
  7.3 Extrapolation of data
  7.4 Report of results
Bibliography
Annex ZA (normative) - Normative references to international
                       publications with their corresponding
                       European publications

Describes a general test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS) and establishes a procedure that compares the performance of a candidate EIS to that of a reference EIS.

IEC 61857-1:2008 specifies a general test procedure for the thermal evaluation and qualification of electrical insulation systems (EIS) and establishes a procedure that compares the performance of a candidate EIS to that of a reference EIS. This standard is applicable to existing or proposed EIS used in electrotechnical products with an input voltage of up to 1 000 V where the thermal factor is the dominating ageing factor. This third edition cancels and replaces the second edition published in 2004, and constitutes editorial revisions to make this standard compatible with Parts 21 and 22.

Committee
GEL/112
DevelopmentNote
Supersedes 03/306455 DC. (04/2005) Supersedes 96/200575 DC. (03/2007) Supersedes 08/30177750 DC. (09/2009)
DocumentType
Standard
Pages
20
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
UNE-EN 61857-1:2009 Identical
NF EN 61857-1 : 2009 Identical
SN EN 61857-1 : 1999 Identical
IEC 61857-1:2008 Identical
EN 61857-1:2009 Identical
DIN EN 61857-1 : 2009 Identical
I.S. EN 61857-1:2009 Identical
NBN EN 61857-1 : 2009 Identical

EN 60085:2008 Electrical insulation - Thermal evaluation and designation
IEC 60216-4-1:2006 Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-chamber ovens
IEC 60493-1:2011 Guide for the statistical analysis of ageing test data - Part 1: Methods based on mean values of normally distributed test results
IEC 60611:1978 Guide for the preparation of test procedures for evaluating the thermal endurance of electrical insulation systems
IEC 60505:2011 Evaluation and qualification of electrical insulation systems
IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
IEC 60034-18-1:2010 Rotating electrical machines - Part 18-1: Functional evaluation of insulation systems - General guidelines
IEC 62114:2001 Electrical Insulation Systems - Thermal classification
EN 60216-5:2008 Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material
IEC 60034-18-21:2012 Rotating electrical machines - Part 18-21: Functional evaluation of insulation systems - Test procedures for wire-wound windings - Thermal evaluation and classification
IEC 60034-18-31:2012 Rotating electrical machines - Part 18-31: Functional evaluation of insulation systems - Test procedures for form-wound windings - Thermal evaluation and classification of insulation systems used in rotating machines
EN 60216-4-1:2006 Electrical insulating materials - Thermal endurance properties - Part 4-1: Ageing ovens - Single-chamber ovens
IEC 60216-5:2008 Electrical insulating materials - Thermal endurance properties - Part 5: Determination of relative thermal endurance index (RTE) of an insulating material
EN 60505:2011/AC:2017-03 EVALUATION AND QUALIFICATION OF ELECTRICAL INSULATION SYSTEMS (IEC 60505:2011/COR1:2017)

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