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http://dx.doi.org/10.7731/KIFSE.2017.31.1.042

A Study on the Tracking Characteristics of Phenolic Resin Insulation Material Due to Accelerated Degradation  

Kim, Si-Kuk (Dept. of Fire and Disaster Protection Engineering, Hoseo University)
Choi, Su-Gil (Dept. of Fire and Disaster Protection Engineering, Hoseo University)
Lee, Chun-Ha (Dept. of Fire and Disaster Protection Engineering, Hoseo University)
Publication Information
Fire Science and Engineering / v.31, no.1, 2017 , pp. 42-49 More about this Journal
Abstract
The present article reports the tracking characteristics of phenolic resin insulation material due to accelerated degradation. For assessing insulation degradation of the phenolic resin insulation material, experiment samples with equivalent years of 0, 10, 20, 30, and 40 years were produced by conducting accelerated degradation experiments using Arrhenius equation. Subsequently, tracking experiments according to KS C IEC 60112 standard were conducted for the experiment samples that were previously subjected to accelerated degradation. According to the measured results for tracking characteristics of phenolic resin subjected to accelerated degradation, upon dropping of 0.1% ammonium chloride, the risks were shown to increase by 1.38 times for the equivalent life of 10 years; 1.45 times for 20 years; 1.62 times for 30 years; and 1.94 times for 40 years based on the equivalent life of 0 year. Upon dropping of 0.01% ammonium chloride, the risks were shown to increase by 1.39 times for the equivalent life of 10 years; 1.52 times for 20 years; 1.99 times for 30 years; and 5.30 times for 40 years. According to the experimental results, the tracking risk was shown to be higher for longer-duration insulation degradation due to aging. In particular, the risk was observed to be greatly increased in the case of the equivalent life of 40 years. Therefore, it is proposed that the occurrence possibility and the risk of electric fires could be minimized through institutional preparation of recommended replacement period by considering risks such as insulation degradation, etc. due to aging.
Keywords
Accelerated degradation; Fire risks; Insulation degradation; Phenolic resin; Tracking;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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