Critical Heat Flux Determination of Electric Cable Insulation

Rantuch Peter (), Štefko Tomáš () and Martinka Jozef ()
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Rantuch Peter: Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24Trnava, Slovak Republic
Štefko Tomáš: Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Integrated Safety, Ulica Jána Bottu 2781/25, 917 24Trnava, Slovak Republic
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 24Trnava, Slovak Republic

Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2018, vol. 26, issue 42, 11-20

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.

Keywords: Cone calorimeter; time to ignition; critical heat flux; thermal response parameter (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:repfms:v:26:y:2018:i:42:p:11-20:n:1

DOI: 10.2478/rput-2018-0001

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