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IEC TS 61956:1999

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Methods of test for the evaluation of water treeing in insulating materials
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

01-06-2024

Language(s)

English - French

Published date

10-08-1999

Publisher

International Electrotechnical Committee

Foreword
Introduction
Clause
1 General
   1.1 Scope
   1.2 Normative references
   1.3 Definitions
2 Test method 1 (plaque test)
   2.1 Principle
   2.2 Test specimen
   2.3 Test apparatus
   2.4 Test procedure (ageing test)
   2.5 Examination after ageing
   2.6 Test report
3 Test method 2 (cup test)
   3.1 Object and principle of test
   3.2 Test specimen
   3.3 Test apparatus
   3.4 Test procedure (ageing test)
   3.5 Examination of unaged and aged test specimens
   3.6 Test report
Annex A (informative) Results and discussion of robin
        tests
Figures
Bibliography

Prescribes methods of test for the evaluation of water treeing in polyethylene (PE) and crosslinked polyethylene (XLPE) compounds, as a means to assess their relative performance under alternating (a.c.) electric stress, in the presence of water. Two methods are described, method I covering the evaluation of insulating materials alone, and method II covering the evaluation of insulating sandwiches consisting of an insulating material in intimate contact with semiconducting screens.

Committee
TC 112
DevelopmentNote
Also numbered as BS PD IEC 61956 (06/2001) Stability Date: 2021 (11/2017)
DocumentType
Technical Specification
Pages
61
PublisherName
International Electrotechnical Committee
Status
Withdrawn

Standards Relationship
NEN NPR IEC/TS 61956 : 1999 Identical

IEC 60243-1:2013 Electric strength of insulating materials - Test methods - Part 1: Tests at power frequencies

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Hardcopy - English - French
PDF - English - French
PDF 3 Users - English - French
PDF 5 Users - English - French
PDF 9 Users - English - French
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