The CSSs have not been evaluated to identify effects of potential deficiencies or failures in the power supply.
Some electrical equipment operates at temperatures exceeding their thermal rating.
Some electric cables are more than 40 years old and age-related degradation of cable resulting in the embrittlement of insulation and jacket material could be expected. There is no plan to assess and monitor the condition of these cables and replace deteriorated cables, as is required in the commercial nuclear industry as part of the renewal process of an operating license. 10 CFR 54 is the NRC regulation applicable to license renewal. Several deficiencies exist in the coordination of the protective devices for certain electrical distribution systems. Many of the installed electrical, instrumentation and control systems at Pantex are old and showing the effects of aging.