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http://dx.doi.org/10.14346/JKOSOS.2019.34.1.8

Lifetime Prediction on PVC Insulation Material for IV and HIV Insulated Wire  

Park, Hyung-Ju (Department of Fire Safety Engineering, Howon University)
Publication Information
Journal of the Korean Society of Safety / v.34, no.1, 2019 , pp. 8-13 More about this Journal
Abstract
Weight and elongation changes of IV and HIV insulations were measured simultaneously at several given temperature of $80^{\circ}C$, $90^{\circ}C$ and $100^{\circ}C$. And the lifetime was predicted using the Arrhenius model. Based on the initial weight values, a 50% elongation reduction was seen at 6.96% for the IV insulation and 10.29% for the HIV insulation. The activation energy from the slope of the lifetime regression equation was calculated as 92.895 kJ/mol(0.9632 eV) for the IV insulation and 95.213 kJ/mol(0.9873 eV) for the HIV insulation. Also, the expected lifetime at the operating temperature of $30^{\circ}C$ to $90^{\circ}C$ is 2.02 to 94.32 years, and longer lifetime was predicted on HIV insulated wires than on IV insulated wires. As a result, it was found that the thermal characteristics of the HIV insulated wires were about 12.44% better than those of IV insulated wires under the same conditions of use.
Keywords
PVC insulation material; accelerated degradation; lifetime prediction; activation energy; arrhenius model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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