Title :
Investigation on thermal endurance of PVC compounds for low voltage cable insulation
Author :
Marzinotto, M. ; Mazzanti, G. ; Mazzetti, C. ; Pompili, M. ; Santulli, C. ; Schiaffino, P.
Author_Institution :
Sapienza Univ. of Roma, Rome
Abstract :
Thermal endurance tests have been carried out on low voltage cable specimens insulated with two PYC-based compounds. Specimens have been aged at three test temperatures (110, 120 and 130degC) with the induced-current method. A proof-test 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.
Keywords :
ageing; dielectric losses; electrical resistivity; high-temperature effects; insulation testing; monitoring; organic insulating materials; permittivity; polymers; power cable insulation; power cable testing; AC volume resistivity; PVC compounds; dielectric properties; dissipation factor; electrical insulation monitoring; high temperature effect; loss factor; low voltage cable insulation; permittivity; polymer matrix; temperature 110 C; temperature 120 C; temperature 130 C; thermal aging; thermal degradation; thermal endurance test; Aging; Cable insulation; Chemical analysis; Dielectric losses; Low voltage; Permittivity; Temperature; Testing; Thermal factors; Thermal resistance;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2007. CEIDP 2007. Annual Report - Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1482-6
Electronic_ISBN :
978-1-4244-1482-6
DOI :
10.1109/CEIDP.2007.4451498
