50.2 Design Bases – The Origin and History of Confusion
No single definition has distributed more disarray. This is the story of why it happened…
Atomic Energy History
Archive
Category: Design Basis
Class 1E Definition
The Class 1E definition is found in IEEE 308. It is associated with electrical power systems found in nuclear power plants.
Design Basis
IEEE 323 – Qualifying electrical equipment to the harsh environments of nuclear power plants
IEEE 323 is the standard used to qualify electrical equipment for safety-related use in nuclear power plants. Here, we explore that standard and its…
Design Basis
Complying with GDC 17 and 18 – a survey of IEEE Std. 308
The NRC requires nuclear plants to have both onsite and offsite power systems available to supply safety-related equipment. It also requires that this equipment…
Design Basis
Class 1E circuit independence – a summary of IEEE 384-1992
Class 1E circuits must be independent from circuits of other categories. Understanding IEEE 384-1992 is vital to understanding the NRC’s circuit separation and isolation…
Design Basis
A note about the difference between ICEA and IPCEA
IPCEA, or ICEA? Here’s the connection . . . .
Design Basis
Things to look for when doing initial background research
Background research is crucial to developing any new project or mod package. Here are some tips specifically tailored to electrical engineers . . .…
Design Basis
Diversity and common-mode failures
“Diversity” means using a different kind of technology, equipment, or methodology to perform the same function. Put another way, it’s taking different approaches to…
Design Basis