BS EN 61251:2016
Current
The latest, up-to-date edition.
Electrical insulating materials and systems. A.C. voltage endurance evaluation
Hardcopy , PDF
English
31-03-2016
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Voltage endurance
5 Test methods
6 Evaluation of voltage endurance
Annex A (informative) - The Weibull distribution
Bibliography
Annex ZA (normative) - Normative references to
international publications with their
corresponding European publications
Defines many of the factors involved in voltage endurance tests on electrical insulating materials and systems.
| Committee |
GEL/112
|
| DevelopmentNote |
Supersedes DD IEC TS 61251 & 14/30310765 DC. (03/2016)
|
| DocumentType |
Standard
|
| Pages |
26
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard describes many of the factors involved in voltage endurance tests on electrical insulating materials and systems. It describes the voltage endurance graph, lists test methods illustrating their limitations and gives guidance for evaluating the sinusoidal a.c. voltage endurance of insulating materials and systems from the results of the tests. This International Standard is applicable over the voltage frequency range 20Hz to 1000Hz. The general principles can also be applicable to other voltage shapes, including impulse voltages. The terminology to be used in voltage endurance is defined and explained.
| Standards | Relationship |
| IEC 61251:2015 | Identical |
| EN 61251:2016 | Identical |
| EN 62134-1:2009 | Identical |
| IEC 60243-1:2013 | Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies |
| EN 60243-3:2014 | Electric strength of insulating materials - Test methods - Part 3: Additional requirements for 1,2/50 µs impulse tests |
| IEC 61649:2008 | Weibull analysis |
| EN 60343:1992 | Recommended test methods for determining the relative resistance of insulating materials to breakdown by surface discharges |
| IEC 60343:1991 | Recommended test methods for determining the relative resistance of insulating materials to breakdown by surface discharges |
| EN 61649:2008 | Weibull analysis |
| IEC 60243-3:2013 | Electric strength of insulating materials - Test methods - Part 3: Additional requirements for 1,2/50 µs impulse tests |
| EN 60243-1:2013 | ELECTRIC STRENGTH OF INSULATING MATERIALS - TEST METHODS - PART 1: TESTS AT POWER FREQUENCIES (IEC 60243-1:2013) |
| IEC 60243-2:2013 | Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage |
| IEC 62539:2007 | Guide for the statistical analysis of electrical insulation breakdown data |
| EN 60243-2:2014 | Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage |
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