Enum: SafetySystemClassEnum

Nuclear safety system classifications (based on IEEE and ASME standards)

URI: valuesets:SafetySystemClassEnum

Permissible Values

Value	Meaning	Description
CLASS_1E	None	Safety systems essential to emergency reactor shutdown and core cooling
SAFETY_RELATED	None	Systems important to safety but not classified as Class 1E
SAFETY_SIGNIFICANT	None	Systems with risk significance but not safety-related
NON_SAFETY_RELATED	None	Systems not required for nuclear safety functions

Slots

Name	Description
safety_system_class	Nuclear safety system classification

Identifier and Mapping Information

Schema Source

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

LinkML Source

name: SafetySystemClassEnum
description: Nuclear safety system classifications (based on IEEE and ASME standards)
from_schema: https://w3id.org/linkml/valuesets
rank: 1000
permissible_values:
  CLASS_1E:
    text: CLASS_1E
    description: Safety systems essential to emergency reactor shutdown and core cooling
    annotations:
      safety_function:
        tag: safety_function
        value: essential to safety
      redundancy:
        tag: redundancy
        value: required
      independence:
        tag: independence
        value: required
      power_supply:
        tag: power_supply
        value: independent emergency power
      seismic_qualification:
        tag: seismic_qualification
        value: required
      examples:
        tag: examples
        value: reactor protection system, emergency core cooling
    title: Class 1E Safety Systems
  SAFETY_RELATED:
    text: SAFETY_RELATED
    description: Systems important to safety but not classified as Class 1E
    annotations:
      safety_function:
        tag: safety_function
        value: important to safety
      quality_requirements:
        tag: quality_requirements
        value: enhanced
      testing_requirements:
        tag: testing_requirements
        value: extensive
      examples:
        tag: examples
        value: some support systems, barriers
    title: Safety-Related Systems
  SAFETY_SIGNIFICANT:
    text: SAFETY_SIGNIFICANT
    description: Systems with risk significance but not safety-related
    annotations:
      safety_function:
        tag: safety_function
        value: risk-significant
      quality_requirements:
        tag: quality_requirements
        value: graded approach
      risk_informed:
        tag: risk_informed
        value: classification based on risk assessment
    title: Safety-Significant Systems
  NON_SAFETY_RELATED:
    text: NON_SAFETY_RELATED
    description: Systems not required for nuclear safety functions
    annotations:
      safety_function:
        tag: safety_function
        value: not required for safety
      quality_requirements:
        tag: quality_requirements
        value: commercial standards
      failure_impact:
        tag: failure_impact
        value: minimal safety impact
    title: Non-Safety-Related Systems