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BSI DD IEC/TS 61251:2008

Electrical insulating materials. A.C. voltage endurance evaluation. Introduction
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BSI DD IEC/TS 61251:2008

Electrical insulating materials. A.C. voltage endurance evaluation. Introduction

PUBLISH DATE 2008
PAGES 20
BSI DD IEC/TS 61251:2008
IEC/TS 61251:2008(E) explains 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 a.c. voltage endurance of insulating materials and systems from the results of the tests. The terminology to be used in voltage endurance is defined and explained. It should be emphasized that where this technical specification is concerned with materials, the results may not be directly applicable to the performance of insulating systems. Voltage endurance tests are used to compare and evaluate insulating materials with regard to their various applications in electrical systems. Determining the ability of electrical insulating materials and systems to endure a.c. voltage stress is complex. The results of voltage endurance tests are influenced by many factors so this technical specification should only be considered as an attempt to present a unified view of voltage endurance for simplified planning and analysis. Some documents for the various practical cases exist and others are being developed. The main changes with respect to the previous edition are listed below:
- extension of the scope to cover electrical insulating material and insulation systems;
- removal of references to short time dielectric breakdown strength measurements as an indicator of voltage endurance.
SDO BSI: British Standards Institution
Document Number IEC/TS 61251
Publication Date June 30, 2008
Language en - English
Page Count 20
Revision Level
Supercedes
Committee GEL/112
Publish Date Document Id Type View
June 30, 2008 DD IEC/TS 61251:2008 Revision