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On the Degradation Mechanism of Low-Voltage Underground Cable with Poly(Vinyl Chloride) Insulation

  • H. M. Tawancy*
  • , M. Hassan
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

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 languageEnglish
Pages (from-to)2288-2295
Number of pages8
JournalJournal of Materials Engineering and Performance
Volume25
Issue number6
DOIs
StatePublished - 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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