Assessment condition degradation of the EVA compound used as cable jacket

Knowing the state of degradation of electrical insulation materials is important for any type of equipment, but it is imperative in the case of equipment for nuclear plants. 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.