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Fire Technology

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03-09-2021

Ignition and Charring of PVC-Based Electric Cables

Authors: Romain Meinier, Mahdi Fellah, Rodolphe Sonnier, Pascal Zavaleta, Sylvain Suard, Laurent Ferry

Published in: Fire Technology | Issue 2/2022

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Abstract

The ignition of four different PVC-based electric cables was studied using cone calorimeter and the influence of the charring phenomenon on ignition was investigated. The thermophysical and optical properties of the sheaths before decomposition were measured. The kinetics of charring was studied by photogrammetry. It was shown that charring occurs for three cables before ignition at heat flux lower than 45 kW/m². The lower is the heat flux, the higher is the char amount at ignition. In spite of the char formation, it was observed that the time-to-ignition of the cables can be properly calculated using the well-known Quintiere’s equation, considering an apparent temperature of ignition. This apparent temperature at ignition was found in the range 312°C to 349°C for the four electric cables.

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Title: Ignition and Charring of PVC-Based Electric Cables
Authors: Romain Meinier
Mahdi Fellah
Rodolphe Sonnier
Pascal Zavaleta
Sylvain Suard
Laurent Ferry
Publication date: 03-09-2021
Publisher: Springer US
Published in: Fire Technology / Issue 2/2022
Print ISSN: 0015-2684
Electronic ISSN: 1572-8099
DOI: https://doi.org/10.1007/s10694-021-01168-0

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