The topical problem of increasing scientific and technical support for level 5, associated with emergency planning and response, of the protection-in-depth system of NPP is examined. As severe accidents have shown, the greatest socioeconomic harm is associated with the excessive response by decision makers. There is a need to increase scientific-technical and methodological support for level 5 of the protection-in-depth system. It is shown that the use of risk-based approaches and the methodology of level-3 probabilistic safety analysis will make it possible to avoid scaling-up the socioeconomic consequences of radiation accidents and to optimize the available forces and means for mitigating the consequences of accidents.

中文翻译：

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核电厂深度防护系统5级的状态和作用

研究了与核电厂的深度保护系统的应急计划和响应相关的增加对第5级的科学和技术支持的主题问题。正如严重事故所表明的那样，最大的社会经济危害与决策者的过度反应有关。有必要增加对深度保护系统第5级的科学技术和方法支持。结果表明，使用基于风险的方法和3级概率安全性分析的方法将有可能避免扩大辐射事故的社会经济后果，并优化减轻事故后果的现有力量和手段。