IEC TS 61956:1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
06-01-2024
English - French
08-10-1999
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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.
| 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Withdrawn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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