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Critical Heat Flux Determination of Electric Cable Insulation

Author

Listed:
  • Rantuch Peter
  • Štefko Tomáš
  • Martinka Jozef

    (Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24 Trnava, Slovak Republic)

Abstract

Electric cables can contribute to the spread of fire through the insulating layer. This paper focuses on their properties characterizing the initiation of fire. Samples of ethylene-based cable insulation were tested using a cone calorimeter by exposing them to external heat flows of six different values (25 kW m−2 – 50 kW m−2). Time to initiate flame burning was observed. The critical heat flux (depending on the method of calculation was in the range 2.94 kW m−2 – 4.59 kW m−2) and the thermal response parameter (342 kW s−0.5 m−2) was calculated from the time of initiation and external heat flow dependence.

Suggested Citation

  • Rantuch Peter & Štefko Tomáš & Martinka Jozef, 2018. "Critical Heat Flux Determination of Electric Cable Insulation," Research Papers Faculty of Materials Science and Technology Slovak University of Technology, Sciendo, vol. 26(42), pages 11-20, June.
    • Handle: RePEc:vrs:repfms:v:26:y:2018:i:42:p:11-20:n:1
    DOI: 10.2478/rput-2018-0001
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