10 CFR 50.36(c)(2)(ii), LCO Criteria
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Excerpt from 10 CFR 50.36#c2ii
- (ii) A technical specification limiting condition for operation of a nuclear reactor must be established for each item meeting one or more of the following criteria:
- (A) Criterion 1. Installed instrumentation that is used to detect, and indicate in the control room, a significant abnormal degradation of the reactor coolant pressure boundary.
- (B) Criterion 2. A process variable, design feature, or operating restriction that is an initial condition of a design basis accident or transient analysis that either assumes the failure of or presents a challenge to the integrity of a fission product barrier.
- (C) Criterion 3. A structure, system, or component that is part of the primary success path and which functions or actuates to mitigate a design basis accident or transient that either assumes the failure of or presents a challenge to the integrity of a fission product barrier.
- (D) Criterion 4. A structure, system, or component which operating experience or probabilistic risk assessment has shown to be significant to public health and safety.
Criterion 1: Indication for reactor coolant pressure boundary | |
Criterion 2: Initial accident conditions | 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition |
Criterion 3: Mitigate the consequence of an accident | 10 CFR 50.72(b)(3)(v), Loss of Safety Function |
Criterion 4: Other significant system | |
Other: some LCO don't have a criterion |