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LESSONS LEARNED — REACTOR PRESSURE VESSEL DEGRADATION

机译:汲取的经验教训-反应堆压力容器的降解

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This paper discusses the discovery of the near through-wall corrosion of the reactor pressure vessel closure head at the Davis-Besse Nuclear Power Station in March 2002. Although no loss of coolant occurred and the reactor core always remained fully covered and cooled, this incident represented a significant degradation of the nuclear safety margin at the facility. This paper describes what caused the corrosion, why it occurred, what actions were taken to correct the root cause of the degradation and finally some lessons-learned from the incident.
机译:本文讨论了2002年3月在戴维斯-贝斯核电站反应堆压力容器封闭头近壁腐蚀的发现。尽管没有发生冷却剂损失并且反应堆堆芯始终被完全覆盖和冷却的情况,但这一事件表示该设施的核安全裕度已大大降低。本文描述了腐蚀的原因,腐蚀的原因,采取了什么措施来纠正腐蚀的根本原因,并从事故中吸取了一些教训。

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