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John Livingston's

The Nuclear Electrical Engineer

An educational resource for electrical engineers in the nuclear power industry

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.

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Tag: lco

Explaining the LCO concept using an analogy

There’s always room to better explain what an LCO actually is. One thing that’s helpful to know is the relationship between operability, surveillance requirements,…

Licensing Basis

A simple illustration of an LCO

The concept “limiting condition for operation” can be a bit tricky to understand at first. In the industry, we simply call them “LCOs”. This…

Licensing Basis

A brief into to the Tech Specs

The Technical Specifications, or Tech Specs for short, are the documented technical parameters that govern the plant’s safe operation. Whereas the UFSAR reads more…

Licensing Basis