NSUF 21-4359: Improving Lifetime Prediction of Electrical Cables in Containment

Cable degradation accelerates late in the cable's lifetime curve but this phenomena must be validated with experimental data. Researchers will use the Sandia Gamma Irradiation Facility (GIF) to expose nuclear cable insulation samples in sealed containers to a series of gamma doses at a series of dose rates. Oxygen concentration of the sealed containers and dielectric properties of the polymer samples will be measured pre- and post-irradiation. Lifetime curves of the insulation will be determined at more extreme accelerated conditions.

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Abstract Cable degradation accelerates late in the cable's lifetime curve but this phenomena must be validated with experimental data. Researchers will use the Sandia Gamma Irradiation Facility (GIF) to expose nuclear cable insulation samples in sealed containers to a series of gamma doses at a series of dose rates. Oxygen concentration of the sealed containers and dielectric properties of the polymer samples will be measured pre- and post-irradiation. Lifetime curves of the insulation will be determined at more extreme accelerated conditions.
Award Announced Date 2021-11-02T12:39:22.923
Awarded Institution None
Facility None
Facility Tech Lead
Irradiation Facility None
PI Leo Fifield
PI Email [email protected]
Project Type RTE
RTE Number 4359