Temperature Evolution Properties of Overhead Line Conductor Exposed to Large-scale Jet Fires Induced by High-pressure Natural Gas Leakage

Zhenhua Wang, Fei You, Juncheng Jiang, Yun Zhang, Kai Shui, Jixiang Xu, Zonglin Fu, Wenhao Huangfu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A unified model was developed from leaked high-pressure natural gas (up to 6.55 MPa) and a procedure outlined in IEEE Standard 738-2012 for transmission line conductor temperature. A real-scale case was presented to show the thermal effects of a large-scale jet fire on the nearby transmission line by setting their distances from 200 to 500 m. The predicted total flame height and damage radius correspond to the reported results with appropriate correction of input parameters. Transmission lines with higher load currents and shorter distances to the jet fire induce higher temperature rises in line conductors. Reducing the current load of transmission line needs to integrate both factors of thermal failure of transmission line and economy of power system.

Original languageEnglish
Title of host publication2019 9th International Conference on Fire Science and Fire Protection Engineering, ICFSFPE 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728153223
DOIs
StatePublished - Oct 2019
Externally publishedYes
Event9th International Conference on Fire Science and Fire Protection Engineering, ICFSFPE 2019 - Chengdu, China
Duration: 18 Oct 201920 Oct 2019

Publication series

Name2019 9th International Conference on Fire Science and Fire Protection Engineering, ICFSFPE 2019

Conference

Conference9th International Conference on Fire Science and Fire Protection Engineering, ICFSFPE 2019
Country/TerritoryChina
CityChengdu
Period18/10/1920/10/19

Keywords

  • flame radiation
  • high-pressure natural gas leakage
  • high-voltage transmission line
  • large-scale jet fire
  • thermal failure

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