exported
equivalent
circuit breaker
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Circuitbreaker
Generated on 2026-04-13
Natural Language Definition
EN
A circuit breaker is a material artifact that bears an electrical current interruption function and regularly participates in processes that safely interrupt electrical current.
PT-BR
Um disjuntor é um dispositivo de chaveamento elétrico que possui uma função de interrupção de corrente elétrica e participa regularmente em processos que interrompem com segurança a corrente elétrica.
Formal Axioms
Semi-formal (Aristotelian)
Every circuit breaker is an electrical switching device that has the function to interrupt electrical current and participates in regular current interruption processes.
First-Order Logic Theory
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▸ Stored override
∀x (CircuitBreaker(x) ↔ ElectricalSwitchingDevice(x) ∧ ∃f (ElectricalCurrentInterruptionFunction(f) ∧ bearerOf(x,f)) ∧ ∃p (RegularInterruptionProcess(p) ∧ participatesIn(x,p)))
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: CircuitBreaker
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-10-07"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:COPI_0000200 rdf:type owl:Class ; # ElectricalCurrentInterruptionFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000496 # ElectricalCurrentInterruptionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000496 # ElectricalCurrentInterruptionProcess
] ;
rdfs:label "electrical current interruption function"@en ;
rdfs:label "função de interrupção de corrente elétrica"@pt-br .
### Process type
:COPI_0000496 rdf:type owl:Class ; # ElectricalCurrentInterruptionProcess
rdfs:subClassOf iof-core:PlannedProcess ;
rdfs:label "electrical current interruption process"@en ;
rdfs:label "processo de interrupção de corrente elétrica"@pt-br .
### Equipment universal: CircuitBreaker
:COPI_0000106 rdf:type owl:Class ; # CircuitBreaker
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
iof-core:MaterialArtifact
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :COPI_0000200 # ElectricalCurrentInterruptionFunction
]
)
] ;
rdfs:label "circuit breaker"@en ;
rdfs:label "disjuntor"@pt-br ;
iof-av:naturalLanguageDefinition "A circuit breaker is a material artifact that bears an electrical current interruption function and regularly participates in processes that safely interrupt electrical current."@en ;
skos:definition "A circuit breaker is a material artifact that bears an electrical current interruption function and regularly participates in processes that safely interrupt electrical current."@en ;
iof-av:naturalLanguageDefinition "Um disjuntor é um dispositivo de chaveamento elétrico que possui uma função de interrupção de corrente elétrica e participa regularmente em processos que interrompem com segurança a corrente elétrica."@pt-br ;
skos:definition "[ISO 15926-4] A <CIRCUIT BREAKER> is an <ELECTRICAL APPARATUS> and a <SWITCHING DEVICE> that at regular intervals interrupts an electric current"@en ;
skos:definition "[CFIHOS] A mechanical switching device that at regular intervals interrupts an electric current."@en ;
skos:definition "[POSC Caesar] A mechanical switching device that at regular intervals interrupts an electric current."@en .
# Disjointness: CircuitBreaker and Fuse
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000106 :COPI_0000282 ) . # CircuitBreaker, Fuse
Axiomatization Decision Log
1
Identity-Giving Function
Function class
ElectricalCurrentInterruptionFunction
⊑ DesignedFunction
Realized in
ElectricalCurrentInterruptionProcess
⊑ PlannedProcess
The identity-giving function is the designed capability to interrupt electrical current at regular intervals. This distinguishes circuit breakers from other electrical switching devices that may only make/break circuits under normal load conditions but cannot interrupt fault currents safely.
2
Genus Determination
MaterialArtifact
bfo:Object (BFO_0000030)
Monolithic causally unified material artefact.
MaterialArtifact ≡ Object ⊓ ∃bearerOf.DesignedFunction.
Circuit breakers are a subtype of electrical switching devices, as evidenced by ISO 15926 classification. This is more specific than the broader 'ElectricalApparatus' parent. ElectricalSwitchingDevice represents causally unified artifacts designed for electrical circuit control, making them MaterialArtifacts. This genus is not yet enriched in our ontology but represents the appropriate taxonomic level.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
These parts are fundamental to any circuit breaker regardless of subtype. The arc extinction mechanism is what enables safe current interruption (versus simple switches), and the trip mechanism enables the regular/automatic interruption capability that defines circuit breakers.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
—
Outputs (O)
—
Transformation (T)
electrical current interruption and control through contact separation
Circuit breakers control the flow of electrical current by making and breaking the electrical path. The key characteristic is the ability to safely interrupt current even under fault conditions, unlike simple switches.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
Fuse
Cross-Standard Observations
All sources consistently define circuit breakers by their current interruption function rather than by specific mechanical details. ISO 15926 provides the most complete taxonomic context by establishing the dual inheritance from both electrical apparatus and switching device categories.
