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Fire PSA is a probabilistic analysis of fire events and their potential impact on the nuclear safety of a plant. Using probabilistic models, fire PSA takes into account the possibility of a fire at various plant locations (zones); the detection and suppression of the fire; the effect of the fire on safety related cables and equipment; the possibility of damage to these cables & equipments and...
Operational Event is any event which happened at a nuclear power plant leading to an unplanned transient or significantly affecting the plant response characteristics. Such events may be caused by operator errors or equipment failures. The range of events could be from an apparently insignificant event to a transient that leads to reactor trip and subsequent actuation of designed safety systems or...
Over the past few years NPCIL has performed comprehensive Level-l Probabilistic Safety Assessment for all the Pressurized Heavy Water Reactors and Boiling Water Reactor. The results are extensively used for the Risk Informed approach whereby risk insights derived from these PSA's are considered together with information obtained from Deterministic safety analysis, for modifying the existsing operator...
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