An experimental study on ignition of electric wire

Xinyan Huang, Yuji Nakamura, Forman A. Williams

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Ignition phenomena of electrical wires by overheating have been investigated experimentally to gain a better understanding of the electrical fire and ignition mechanism of multilayer materials. In this study, several sample wires, made by nickel-chrome and copper, with different diameters and coating thickness of polyethylene have been used. In the experiments, a coil heater was adopted as the ignition source and the temperature distribution along the wire was monitored by thermocouples. The heat flux and heating time were selected as the main parameters to identify the flashpoint and spread point of electrical wires. Experimental results show that the difficulty of wire ignition is determined by the thermal conductivity, diameter and coating thickness of wire, collectively. Additionally, there may be a critical fuel mass flux and a critical wire temperature distribution that controls the flashpoint and spread point. We have also found that a critical heat flux for wire ignition exists and increases as pressure reduces. The ignition criterions of wire are summarized and qualitatively discussed.

Original languageEnglish
Title of host publicationFall Technical Meeting of the Western States Section of the Combustion Institute 2011, WSS/CI 2011 Fall Meeting
PublisherWestern States Section/Combustion Institute
Pages672-682
Number of pages11
ISBN (Electronic)9781618393043
Publication statusPublished - 1 Jan 2011
Externally publishedYes
EventFall Technical Meeting of the Western States Section of the Combustion Institute 2011, WSS/CI 2011 - Riverside, United States
Duration: 17 Oct 201118 Oct 2011

Publication series

NameFall Technical Meeting of the Western States Section of the Combustion Institute 2011, WSS/CI 2011 Fall Meeting

Conference

ConferenceFall Technical Meeting of the Western States Section of the Combustion Institute 2011, WSS/CI 2011
CountryUnited States
CityRiverside
Period17/10/1118/10/11

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

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