Electrical insulating materials and systems. A.C. voltage endurance evaluation

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-03-2016

Publisher

British Standards Institution

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.

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.

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	14/30310765 DC : 0 DD IEC TS 61251 : DRAFT JUNE 2008

Standards	Relationship
IEC 61251:2015	Identical
EN 61251:2016	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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BS EN 61251:2016

Electrical insulating materials and systems. A.C. voltage endurance evaluation

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory