IfcProtectiveDeviceType

Definition from IAI: An IfcProtectiveDeviceType is a device that breaks an electrical circuit when a stated electric current that passes through it is exceeded.

HISTORY: New entity in IFC 2x2

Use Definitions

An IfcProtectiveDeviceType is a subtype of IfcFlowControllerType that provides for various devices that ensure the safety of an electrical circuit.

Usage of IfcProtectiveDeviceType defines the parameters for one or more occurrences of IfcFlowController. Parameters are specified through property sets that are enumerated in the IfcIfcProtectiveDeviceTypeEnum data type.

Property Set Use Definition:

The property sets relating to the IfcProtectiveDeviceType are defined by the IfcPropertySet and attached by the IfcRelDefinesByType relationship. It is accessible by the inverse IsDefinedBy relationship. The following property set definitions specific to an IfcProtectiveDeviceType are part of this IFC release:

Pset_ElectricalDeviceCommon: property set for properties that are common to all types of electrical devices, if available
Pset_ProtectiveDeviceTypeCommon: property set for properties that are common to all types of protective device, if available
Pset_ProtectiveDeviceTypeCircuitBreaker: specific property set for the properties of a circuit breaker , if available
Pset_ProtectiveDeviceTypeEarthFailureDevice: specific property set for the properties of an earth failure device, if available
Pset_ProtectiveDeviceTypeFuseDisconnector: specific property set for the properties of a fuse disconnector, if available
Pset_ProtectiveDeviceTypeResidualCurrentCircuitBreaker: specific property set for the properties of a residual current circuit breaker, if available
Pset_ProtectiveDeviceTypeResidualCurrentSwitch: specific property set for the properties of a residual current switch, if available
Pset_ProtectiveDeviceTypeVaristor: specific property set for the properties of a varistor, if available

Geometry Use Definitions

Representations of the type are defined as representation maps (at the level of the supertype IfcTypeProduct). These are assigned at the occurrence through the IfcShapeRepresentation.Item being an IfcMappedItem.

EXPRESS specification:

ENTITY IfcProtectiveDeviceType

SUBTYPE OF (

IfcFlowControllerType);

PredefinedType

IfcProtectiveDeviceTypeEnum;

END_ENTITY;

Attribute definitions:

PredefinedType

Identifies the predefined types of protective device from which the type required may be set.

Inheritance graph

ENTITY IfcProtectiveDeviceType;

ENTITY IfcRoot;

GlobalId

IfcGloballyUniqueId;

OwnerHistory

IfcOwnerHistory;

Name

OPTIONAL IfcLabel;

Description

OPTIONAL IfcText;

ENTITY IfcObjectDefinition;

INVERSE

HasAssignments

SET OF IfcRelAssigns FOR RelatedObjects;

IsDecomposedBy

SET OF IfcRelDecomposes FOR RelatingObject;

Decomposes

SET [0:1] OF IfcRelDecomposes FOR RelatedObjects;

HasAssociations

SET OF IfcRelAssociates FOR RelatedObjects;

ENTITY IfcTypeObject;

ApplicableOccurrence

OPTIONAL IfcLabel;

HasPropertySets

OPTIONAL SET [1:?] OF IfcPropertySetDefinition;

INVERSE

ObjectTypeOf

SET [0:1] OF IfcRelDefinesByType FOR RelatingType;

ENTITY IfcTypeProduct;

RepresentationMaps

OPTIONAL LIST [1:?] OF UNIQUE IfcRepresentationMap;

Tag

OPTIONAL IfcLabel;

ENTITY IfcElementType;

ElementType

OPTIONAL IfcLabel;

ENTITY IfcDistributionElementType;

ENTITY IfcDistributionFlowElementType;

ENTITY IfcFlowControllerType;

ENTITY IfcProtectiveDeviceType;

PredefinedType

IfcProtectiveDeviceTypeEnum;

END_ENTITY;