Analysis of antioxidant in aged cables
- 7 November 2016
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Successful application of polyolefins as insulating materials for solid dielectric cable depends on their long-term stability against oxidation and electrochemical degradation. The usual method of stabilization is the addition of small quantities of antioxidants (AO), which act as radical scavengers in the oxidation process. The effectiveness of antioxidants depends not only on its capability for resonance stabilization but also on physical factors such as solubility, diffusivity, and volatility. The possibility of excess anti-oxidants accumulating and crystallizing in the voids and at interfaces of solid dielectric cable and acting as stress enhancers is important from service-life considerations.Keywords
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