Here you can find design tips on technical skills like cable and breaker sizing, short-circuit evaluations and more, PLUS deep-dive analysis of nuclear-specific topics like design basis, Tech Specs, UFSARs, and safety-related SSCs — built from primary source documents.

Tag: 50.59

10 CFR 50.59 – A history of the rule’s development

Prior to 1962, the 50.59 process for modifying a nuclear plant without requiring prior Commission approval did not exist. There was no UFSAR. There…

Licensing Basis

Modifying the UFSAR with the 50.59 process

Often a design will require updating something in the UFSAR. It might be a drawing or some text. There’s a process for that .…

Licensing Basis