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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:31 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Solid State Physics and Materials Science
Title:
Thermo-oxidative degradation in EVA compound used as cable jacket
Authors:
Catalin RUSU-ZAGAR (1), Gilda RUSU-ZAGAR (1)
Affiliation:
The National Research and Development Institute of Occupational Safety
E-mail
catalinrusuzagar@gmail.com;gildarusuzagar@yahoo.com
Keywords:
EVA compound, electrical insulation materials, accelerated aging
Abstract:
The equipment used in nuclear power plant must always correspond to high standards of security. In order to maintain the conformity to the standards, the degradation state of the electrical insulation materials has to be known permanently. A study was conducted to evaluate the use of oxygen under pressure to accelerate thermo-oxidative degradation rate in EVA compound used as cable jacket. In this paper are presented the results of estimating the state of deterioration of insulating EVA compound subjected to accelerated aging simple and combined, thermal and oxygen pressure. Evaluation of degradation was performed using DSC method, and verification of results was done by determining the elongation at break. The paper concludes that the use of DSC allows accurate estimation of activation energy and estimate the lifetime of the material. In this context the article deals with the oxidative degradation rate in EVA compound used as cable jacket because their degradation can lead to the occurrence of work accidents.
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