NRC Introduces USWC Performance Indicator as Part of Nuclear Reactor Oversight Process

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NRC Introduces USWC Performance Indicator as Part of Nuclear Reactor Oversight Process

July 16, 2007 // Published as a news service by IHS

reactor oversight

This indicator tracks events that can increase the risk associated with a reactor's unplanned manual or automatic shutdowns, which are called scrams.

It will monitor conditions that could complicate a plant's scram recovery, including:

Maintaining control over conditions needed for a chain reaction.

Providing electricity to emergency systems.

Activating emergency sources of cooling water.

Maintaining availability of normal cooling water sources.

Using emergency operating procedures to address complicated scrams.

Triggering any one of the criteria during an unplanned scram counts as an event, and two or more events in a 12-month period will result in increased oversight, according to NRC.