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SN EN 60505 : 2000
Current
The latest, up-to-date edition.
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EVALUATION AND QUALIFICATION OF ELECTRICAL INSULATION SYSTEMS
12-01-2013
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms
3.2 Terms related to service stresses and ageing
3.3 Terms related to testing
4 Ageing
4.1 Ageing mechanism
4.2 Assessment of ageing mechanisms
4.3 Accelerated ageing
5 Elements for preparing an evaluation method
5.1 Object
5.2 Service conditions
5.3 Life values
6 Functional evaluation methods to qualify an EIS
6.1 General considerations
6.2 Types of evaluation procedures
6.3 Practical considerations
7 Functional ageing tests
7.1 Test objects
7.2 Test conditions
7.3 Determination of EIS service life
8 Accelerated ageing
8.1 Stress levels
8.2 Duration and number of subcycles
8.3 Ageing subcycle
9 Prediagnostic conditioning
10 Diagnostics
10.1 Diagnostic tests - End point criteria
10.2 Additional specific tests
11 Analysing the data
11.1 General
11.2 Operating experience
11.3 Electrical endurance
11.4 Thermal ageing
11.5 Mechanical endurance
11.6 Environmental test data
11.7 Multifactor test data
11.8 Number of specimens
12 Evaluation procedures based on statistical distributions -
Mathematical formulae
13 Test report
14 EIS coding
Annex A (informative) Checklists
Annex B (informative) Flow charts
Annex C (informative) Selection of diagnostic tests and their
stress levels
Annex D (informative) Test using step-by-step increasing
voltage
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Bibliography
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