Enum: MaintenanceTypeEnum

Types of nuclear facility maintenance activities

URI: valuesets:MaintenanceTypeEnum

Permissible Values

Value	Title	Meaning	Description	Access	Approval	Assessment	Basis	Cause	Documentation	Duration	Efficiency	Frequency	Optimization	Outage Type	Planning	Purpose	Regulatory Requirement	Safety	Safety Significance	Schedule	Scope	Techniques	Technology	Testing	Timing	Trigger	Urgency
PREVENTIVE_MAINTENANCE	Preventive Maintenance		Scheduled maintenance to prevent equipment failure											planned outage	extensive advance planning	prevent failures				predetermined intervals
CORRECTIVE_MAINTENANCE	Corrective Maintenance		Maintenance to repair failed or degraded equipment												may be immediate					unplanned						equipment failure or degradation	varies by safety significance
PREDICTIVE_MAINTENANCE	Predictive Maintenance		Maintenance based on condition monitoring				condition monitoring data				optimized maintenance timing												condition monitoring systems		based on predicted failure
CONDITION_BASED_MAINTENANCE	Condition-Based Maintenance		Maintenance triggered by equipment condition assessment			continuous condition monitoring							resource optimization					maintains safety margins								condition degradation
REFUELING_OUTAGE_MAINTENANCE	Refueling Outage Maintenance		Major maintenance during scheduled refueling	full plant access available						30-60 days typical		every 12-24 months									major equipment inspection and repair
FORCED_OUTAGE_MAINTENANCE	Forced Outage Maintenance		Unplanned maintenance due to equipment failure					unexpected equipment failure		variable									may affect safety systems								immediate attention required
IN_SERVICE_INSPECTION	In-Service Inspection		Required inspection of safety-related components									specified intervals (typically 10 years)					mandated by regulations				pressure vessels, piping, supports	non-destructive testing
MODIFICATION_WORK	Modification Work		Changes to plant design or configuration		requires design change approval				comprehensive documentation updates							plant improvement or regulatory compliance								extensive post-modification testing

Slots

Name	Description
maintenance_type	Type of nuclear facility maintenance activity

Identifier and Mapping Information

Schema Source

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

LinkML Source

name: MaintenanceTypeEnum
instantiates:
- valuesets_meta:ValueSetEnumDefinition
description: Types of nuclear facility maintenance activities
title: Maintenance Type
from_schema: https://w3id.org/linkml/valuesets
contributors:
- orcid:0000-0002-6601-2165
- https://github.com/anthropics/claude-code
status: DRAFT
rank: 1000
permissible_values:
  PREVENTIVE_MAINTENANCE:
    text: PREVENTIVE_MAINTENANCE
    description: Scheduled maintenance to prevent equipment failure
    annotations:
      schedule:
        tag: schedule
        value: predetermined intervals
      purpose:
        tag: purpose
        value: prevent failures
      planning:
        tag: planning
        value: extensive advance planning
      outage_type:
        tag: outage_type
        value: planned outage
    title: Preventive Maintenance
  CORRECTIVE_MAINTENANCE:
    text: CORRECTIVE_MAINTENANCE
    description: Maintenance to repair failed or degraded equipment
    annotations:
      trigger:
        tag: trigger
        value: equipment failure or degradation
      urgency:
        tag: urgency
        value: varies by safety significance
      planning:
        tag: planning
        value: may be immediate
      schedule:
        tag: schedule
        value: unplanned
    title: Corrective Maintenance
  PREDICTIVE_MAINTENANCE:
    text: PREDICTIVE_MAINTENANCE
    description: Maintenance based on condition monitoring
    annotations:
      basis:
        tag: basis
        value: condition monitoring data
      timing:
        tag: timing
        value: based on predicted failure
      efficiency:
        tag: efficiency
        value: optimized maintenance timing
      technology:
        tag: technology
        value: condition monitoring systems
    title: Predictive Maintenance
  CONDITION_BASED_MAINTENANCE:
    text: CONDITION_BASED_MAINTENANCE
    description: Maintenance triggered by equipment condition assessment
    annotations:
      assessment:
        tag: assessment
        value: continuous condition monitoring
      trigger:
        tag: trigger
        value: condition degradation
      optimization:
        tag: optimization
        value: resource optimization
      safety:
        tag: safety
        value: maintains safety margins
    title: Condition-Based Maintenance
  REFUELING_OUTAGE_MAINTENANCE:
    text: REFUELING_OUTAGE_MAINTENANCE
    description: Major maintenance during scheduled refueling
    annotations:
      frequency:
        tag: frequency
        value: every 12-24 months
      scope:
        tag: scope
        value: major equipment inspection and repair
      duration:
        tag: duration
        value: 30-60 days typical
      access:
        tag: access
        value: full plant access available
    title: Refueling Outage Maintenance
  FORCED_OUTAGE_MAINTENANCE:
    text: FORCED_OUTAGE_MAINTENANCE
    description: Unplanned maintenance due to equipment failure
    annotations:
      cause:
        tag: cause
        value: unexpected equipment failure
      urgency:
        tag: urgency
        value: immediate attention required
      duration:
        tag: duration
        value: variable
      safety_significance:
        tag: safety_significance
        value: may affect safety systems
    title: Forced Outage Maintenance
  IN_SERVICE_INSPECTION:
    text: IN_SERVICE_INSPECTION
    description: Required inspection of safety-related components
    annotations:
      regulatory_requirement:
        tag: regulatory_requirement
        value: mandated by regulations
      frequency:
        tag: frequency
        value: specified intervals (typically 10 years)
      scope:
        tag: scope
        value: pressure vessels, piping, supports
      techniques:
        tag: techniques
        value: non-destructive testing
    title: In-Service Inspection
  MODIFICATION_WORK:
    text: MODIFICATION_WORK
    description: Changes to plant design or configuration
    annotations:
      purpose:
        tag: purpose
        value: plant improvement or regulatory compliance
      approval:
        tag: approval
        value: requires design change approval
      testing:
        tag: testing
        value: extensive post-modification testing
      documentation:
        tag: documentation
        value: comprehensive documentation updates
    title: Modification Work