Abstract
A study has been undertaken to determine the degradation mechanism leading to localized short-circuit failures of an underground low-voltage cable with PVC insulation. It is shown that that the insulation of outer sheath and conductor cores has been cracked by thermal degradation involving dehydrochlorination, oxidation, and loss of plasticizers leading to current leakage between the cores. Most evidence points out that overheating due to poor connection of copper wires as well as a chemically active soil has caused the observed degradation.
| Original language | English |
|---|---|
| Pages (from-to) | 2288-2295 |
| Number of pages | 8 |
| Journal | Journal of Materials Engineering and Performance |
| Volume | 25 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1 Jun 2016 |
Bibliographical note
Publisher Copyright:© 2016, ASM International.
Keywords
- NMR
- electron
- failure Analysis
- infrared spectroscopy
- microscopy
- oxidation
- polymers and plastics
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
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