Thermal endurance tests have been carried out on low voltage cable specimens insulated with two PVC-based compounds. Specimens have been aged at three test temperatures (110, 120 and 130°C) with the induced-current method. A prooftest procedure, based on withstand-voltage tests, has been chosen for determining specimen times to the end-point. During thermal aging some physical quantities – i.e. permittivity, loss factor, dissipation factor and AC volume resistivity – that characterize the dielectric properties of electrical insulation, have been monitored for investigating their trend with thermal aging and thus the effects of thermal degradation. Test results are analyzed and discussed in detail in order to highlight the possible chemical modifications occurring within the polymer matrix as an effect of high temperature.

Investigation on thermal endurance of PVC compounds for low voltage cable insulation

MAZZANTI, GIOVANNI;
2007

Abstract

Thermal endurance tests have been carried out on low voltage cable specimens insulated with two PVC-based compounds. Specimens have been aged at three test temperatures (110, 120 and 130°C) with the induced-current method. A prooftest procedure, based on withstand-voltage tests, has been chosen for determining specimen times to the end-point. During thermal aging some physical quantities – i.e. permittivity, loss factor, dissipation factor and AC volume resistivity – that characterize the dielectric properties of electrical insulation, have been monitored for investigating their trend with thermal aging and thus the effects of thermal degradation. Test results are analyzed and discussed in detail in order to highlight the possible chemical modifications occurring within the polymer matrix as an effect of high temperature.
2007
Atti della 2007 Conference on Electrical Insulation and Dielectric Phenomena (IEEE CEIDP 2007)
49
52
M. Marzinotto; C. Santulli; G. Mazzanti; C. Mazzetti; P. Schiaffino
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/53019
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