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Probabilistic Risk Assessment


Westinghouse Experience: PRA Models

Westinghouse Experience: Applications

  • Operations
    NRC Significance Determination Process (SDP)
    Mitigation System Performance Indicators (MSPI)
    Reactor Oversight Process (ROP)
    Maintenance Rule (10 CFR 50.65)
  • Risk-Informed Applications
    Risk-Informed In-Service Inspections
    Risk-Informed In-Service Testing
    Risk-Informed Staggered ESF Testing
    RTS/EFAS Channel Testing Intervals
    Risk-Informed Containment ILRT Intervals
  • Risk-Informed Tech Specs
    RITS Initiative 2 - Risk-Informed Missed Surveillances
    RITS Initiative 3 - Flexible Mode Restraints (LCO 3.0.4)
    RITS Initiative 4a: Changes to Individual TS via Regulatory Guide 1.177
    Initiative 4b: Risk-Managed Tech Specs using MR (a)(4) backstop using Regulatory Guide 1.174
    Initiative 5b: Risk-Informed Surveillance Test Intervals
  • 以反应为特殊处理要求SCs - 10 CFR 50.69