Barrier Integrity

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The objective of the Barrier Integrity cornerstone is to provide reasonable assurance that the physical design barriers protect the public from radionuclide releases caused by accidents. Licensees can reduce the effects of reactor accidents if they do occur by maintaining the integrity of the barriers. The barriers are the fuel cladding, reactor coolant system (RCS) boundary, and the containment.

Strategic Area Cornerstone Performance Indicator
Reactor Safety Initiating Events Unplanned Scram

Unplanned Power Change

Unplanned Scrams with Complication

Mitigating Systems Safety System Functional Failure

Emergency AC Power System

High Pressure Injection System

Heat Removal System

Residual Heat Removal System

Cooling Water System

Barrier Integrity Reactor Coolant System (RCS) Activity

Reactor Coolant System (RCS) Leakage

Emergency Preparedness Drill/Exercise Performance

Emergency Response Organization (ERO) Drill Participation

Alert and Notification System Reliability

Radiation Safety Public Radiation Safety Radiological Effluent Technical Specifications/Offsite Dose Calculation Manual (RETS/ODCM)
Occupational Radiation Safety Occupational Exposure Control Effectiveness
Safeguards Physical Protection Security PI