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exported equivalent COPI_0000223
Cathodic Protection System
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000223
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A cathodic protection system is a corrosion protection system that uses electrochemical cathodic protection mechanisms with anodes to prevent corrosion of carbon and low-alloy steel equipment or structures.
PT-BR
Um sistema de proteção catódica é um sistema de proteção contra corrosão que usa mecanismos eletroquímicos de proteção catódica com ânodos para prevenir a corrosão de equipamentos ou estruturas de aço carbono e baixa liga.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every cathodic protection system is a corrosion protection system that bears a cathodic protection function and has anodes as component parts.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (CathodicProtectionSystem(x) ↔ EngineeredSystem(x) ∧ ∃f (CathodicProtectionFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.CathodicProtectionFunction ⊓ ∃hasComponentPartAtSomeTime.Anode) — Steps 1–3: genus + identity-giving function [Function axiom: CathodicProtectionFunction]∀f (CathodicProtectionFunction(f) → ∀p (realizedIn(f,p) → CathodicProtectionProcess(p)) ∧ ∃p (CathodicProtectionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Necessary part: Anode]∀x (CathodicProtectionSystem(x) → ∃p (Anode(p) ∧ hasComponentPartAtSomeTime(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((CathodicProtectionSystem(x) ∧ CathodicProtectionFunction(f) ∧ bearerOf(x,f)) → ∃m (MetallicStructure(m) ∧ participatesIn(m,f)) ∧ ∃e (MetallicStructure(e) ∧ participatesIn(e,f)) ∧ processType(f,ChemicalTransformation)) — Step 5: typed participants in the realising process
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: CathodicProtectionSystem <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 :CathodicProtectionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :CathodicProtectionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :CathodicProtectionProcess ] ; rdfs:label "cathodic protection function"@en ; rdfs:label "função de proteção catódica"@pt-br . ### Process type :CathodicProtectionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "cathodic protection process"@en ; rdfs:label "processo de proteção catódica"@pt-br . :CathodicProtectionProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :MetallicStructure ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :MetallicStructure ] . ### Equipment universal: CathodicProtectionSystem :CathodicProtectionSystem rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:EngineeredSystem [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; # bearerOf — ObjectAggregate branch owl:someValuesFrom :CathodicProtectionFunction ] [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtSomeTime ; owl:someValuesFrom :Anode ] ) ] ; rdfs:label "cathodic protection system"@en ; rdfs:label "sistema de proteção catódica"@pt-br ; iof-av:naturalLanguageDefinition "A cathodic protection system is a corrosion protection system that uses electrochemical cathodic protection mechanisms with anodes to prevent corrosion of carbon and low-alloy steel equipment or structures."@en ; skos:definition "A cathodic protection system is a corrosion protection system that uses electrochemical cathodic protection mechanisms with anodes to prevent corrosion of carbon and low-alloy steel equipment or structures."@en ; iof-av:naturalLanguageDefinition "Um sistema de proteção catódica é um sistema de proteção contra corrosão que usa mecanismos eletroquímicos de proteção catódica com ânodos para prevenir a corrosão de equipamentos ou estruturas de aço carbono e baixa liga."@pt-br ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000196 ; owl:someValuesFrom :COPI_0000383 ] ; :Anode rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "ânodo"@pt-br ; rdfs:label "anode"@en .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
CathodicProtectionFunction ⊑ DesignedFunction
Realized in
CathodicProtectionProcess ⊑ PlannedProcess
The identity-giving function is the electrochemical protection of metal structures by making them cathodic, thereby preventing corrosion. This is achieved through either sacrificial anodes or impressed current systems that provide electrons to the protected structure.
2 Genus DeterminationDeterminação do Gênero
EngineeredSystembfo:ObjectAggregate (BFO_0000027)
Based on ISO 15926 hierarchy, this is explicitly stated as a subtype of CORROSION PROTECTION SYSTEM. This is the most specific appropriate superclass. Since cathodic protection systems typically comprise multiple interacting components (anodes, rectifiers, reference electrodes, cables) working together without a single causal boundary, the BFO root is EngineeredSystem rather than Assembly.
3 Differentia SpecificaDiferença Específica
∃bearerOf.CathodicProtectionFunction ⊓ ∃hasComponentPartAtSomeTime.Anode

Distinguished from other corrosion protection systems by using electrochemical cathodic protection mechanisms with anodes (sacrificial or impressed current) to prevent corrosion of carbon and low-alloy steel structures.

The specific cathodic protection function and the presence of anodes are the minimal differentiating conditions. The electrochemical mechanism is what distinguishes this from other corrosion protection approaches.
4 Necessary PartsPartes Necessárias
Part classParentRelation
AnodeMaterialArtifacthasComponentPartAtSomeTime
Anodes are universally required for the electrochemical protection mechanism, while the protected structure is the target participant that defines the system's purpose.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'MetallicStructure', 'count': 1, 'constraints': 'carbon or low-alloy steel requiring protection'}
OutputsSaídas
{'type': 'MetallicStructure', 'count': 1, 'constraints': 'electrochemically protected from corrosion'}
TransformationTransformação
electrochemical transformation - electron transfer making protected structure cathodic
The process signature involves electrical current flow and electrochemical transformation of the protected structure's surface potential to prevent corrosion.
MetadataMetadados
COPI IDCOPI IDCOPI_0000223
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000223
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-09-08
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-10-07
Quick factsDados rápidos
GenusGêneroEngineeredSystem
Root classClasse raizEngineeredSystem
Axiom modeModoequivalent
FunctionFunçãoCathodicProtectionFunction
ProcessProcessoCathodicProtectionProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 2 sources
ISO 15926-4 CATHODIC PROTECTION SYSTEM
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
CFIHOS cathodic protection system
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
Provenance tiersCamadas de proveniência
primarystandardverbatimiso15926
A <CATHODIC PROTECTION SYSTEM> is an <ARTEFACT> and a <CORROSION PROTECTION SYSTEM> using sacrificial anodes or impressed current anodes offering material and giving protection to carbon and low-alloy steel equipment or structures
secondarystandardverbatimcfihos
A corrosion protection system using sacrificial anodes or impressed current anodes offering material and giving protection to carbon and low-alloy steel equipment or structures.

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