Enum: DefenseInDepthLevelEnum

Defense in depth barrier levels for nuclear safety

Permissible Values

Value	Meaning	Description
LEVEL_1	None	Conservative design and high quality in construction and operation
LEVEL_2	None	Control of abnormal operation and detection of failures
LEVEL_3	None	Control of accidents to prevent progression to severe conditions
LEVEL_4	None	Control of severe accidents including prevention of core melt progression
LEVEL_5	None	Mitigation of off-site radiological consequences

Slots

Name	Description
defense_in_depth_level	Defense in depth barrier level

Identifier and Mapping Information

Schema Source

from schema: https://w3id.org/linkml/valuesets

LinkML Source

name: DefenseInDepthLevelEnum
description: Defense in depth barrier levels for nuclear safety
from_schema: https://w3id.org/linkml/valuesets
rank: 1000
permissible_values:
  LEVEL_1:
    text: LEVEL_1
    description: Conservative design and high quality in construction and operation
    annotations:
      objective:
        tag: objective
        value: prevent deviations from normal operation
      approach:
        tag: approach
        value: conservative design, quality assurance
      examples:
        tag: examples
        value: design margins, quality construction
    title: Level 1 - Prevention of Abnormal Operation
  LEVEL_2:
    text: LEVEL_2
    description: Control of abnormal operation and detection of failures
    annotations:
      objective:
        tag: objective
        value: control abnormal operation and failures
      approach:
        tag: approach
        value: control systems, protection systems
      examples:
        tag: examples
        value: reactor protection systems, safety systems
    title: Level 2 - Control of Abnormal Operation
  LEVEL_3:
    text: LEVEL_3
    description: Control of accidents to prevent progression to severe conditions
    annotations:
      objective:
        tag: objective
        value: control design basis accidents
      approach:
        tag: approach
        value: engineered safety features
      examples:
        tag: examples
        value: emergency core cooling, containment systems
    title: Level 3 - Control of Accidents Within Design Basis
  LEVEL_4:
    text: LEVEL_4
    description: Control of severe accidents including prevention of core melt progression
    annotations:
      objective:
        tag: objective
        value: control severe accidents
      approach:
        tag: approach
        value: severe accident management
      examples:
        tag: examples
        value: cavity flooding, filtered venting
    title: Level 4 - Control of Severe Plant Conditions
  LEVEL_5:
    text: LEVEL_5
    description: Mitigation of off-site radiological consequences
    annotations:
      objective:
        tag: objective
        value: protect public and environment
      approach:
        tag: approach
        value: emergency planning and response
      examples:
        tag: examples
        value: evacuation plans, protective actions
    title: Level 5 - Mitigation of Radiological Consequences