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Article

Dielectric Measurement Based Deducted Quantities to Track Repetitive, Short-Term Thermal Aging of Polyvinyl Chloride (PVC) Cable Insulation

Department of Electric Power Engineering, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
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Author to whom correspondence should be addressed.
Polymers 2020, 12(12), 2809; https://doi.org/10.3390/polym12122809
Received: 26 October 2020 / Revised: 19 November 2020 / Accepted: 23 November 2020 / Published: 27 November 2020
The effect of short-term (3- and 6-h-long) periodic thermal aging was investigated at three different temperatures on PVC cables and PVC films. Three different temperatures (110, 125, and 140 °C) were used for aging PVC cables and one (110 °C) for PVC films. PVC films were prepared for the investigation containing 0, 30, 40, and 50 weight percent of dioctyl phthalate plasticizer (DOP). The effect of short-term thermal aging was monitored by electrical (dielectric spectrum and voltage response measurement) and mechanical (Shore D hardness) methods. From the loss factor measurements, different deducted quantities were calculated and compared with Shore D hardness, which has been shown to be a parameter reflecting the effect of short-term thermal aging on PVC insulation. The measurements revealed that Shore D hardness is not the best property for monitoring aging. Instead, increasing dissipated power and the shifting behavior of tan δ–frequency curves proved to be the best phenomena for assessing the impact of thermal aging. Simple deducted quantities may provide a basis for following short-term thermal aging. View Full-Text
Keywords: PVC insulation; low-voltage cables; insulation degradation; short-term thermal degradation; dielectric measurements; hardness testing; loss factor; voltage response measurement PVC insulation; low-voltage cables; insulation degradation; short-term thermal degradation; dielectric measurements; hardness testing; loss factor; voltage response measurement
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MDPI and ACS Style

Csányi, G.M.; Bal, S.; Tamus, Z.Á. Dielectric Measurement Based Deducted Quantities to Track Repetitive, Short-Term Thermal Aging of Polyvinyl Chloride (PVC) Cable Insulation. Polymers 2020, 12, 2809. https://doi.org/10.3390/polym12122809

AMA Style

Csányi GM, Bal S, Tamus ZÁ. Dielectric Measurement Based Deducted Quantities to Track Repetitive, Short-Term Thermal Aging of Polyvinyl Chloride (PVC) Cable Insulation. Polymers. 2020; 12(12):2809. https://doi.org/10.3390/polym12122809

Chicago/Turabian Style

Csányi, Gergely M., Semih Bal, and Zoltán Á. Tamus. 2020. "Dielectric Measurement Based Deducted Quantities to Track Repetitive, Short-Term Thermal Aging of Polyvinyl Chloride (PVC) Cable Insulation" Polymers 12, no. 12: 2809. https://doi.org/10.3390/polym12122809

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