Effect of moisture on needle testing of polyethylene
- 27 October 2016
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The needle test in some of its variations has been developed to the point where it provides reliable and reproducible quantitative data on the resistance of materials to dielectric failure due to isolated partial discharge initiated at the tips of very sharp electrodes. However, it is still attacked on the basis that its results are not meaningful. That is, they are not valid in evaluating materials for use in cables because the needle test does not simulate closely enough the conditions which a cable sees in actual use underground, in direct buried applications.Keywords
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