Effect of antioxidant concentration and radiation dose on oxidation induction time

Oxidation induction time (OIT) provides a useful measurement of aging of electrical cable insulation. The technique is being refined for application to 1E electric cable in nuclear power plants. Exponential correlations have been found for OIT as functions of both radiation dose and antioxidant conc...

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Bibliographic Details
Main Authors: Mason, L.R., Doyle, T.E., Reynolds, A.B.
Format: Conference Proceeding
Language:English
Subjects:
Aging
Cable insulation
Cables
Chemicals
Kinetic theory
Oxidation
Paramagnetic resonance
Polymers
Temperature
Thermal degradation
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Summary:Oxidation induction time (OIT) provides a useful measurement of aging of electrical cable insulation. The technique is being refined for application to 1E electric cable in nuclear power plants. Exponential correlations have been found for OIT as functions of both radiation dose and antioxidant concentration for ethylene-propylene rubber (EPR) and cross-linked polyetheylene (XLPE) cable materials. At constant dose rate, the antioxidant concentration was shown to decrease linearly with time, which is consistent with oxidation reaction kinetics.< >
ISSN:1089-084X
DOI:10.1109/ELINSL.1992.247027