6.3.2.2 IfcDiscreteAccessoryTypeEnum
6.3.2.2.1 Semantic definition
This enumeration defines the different types of discrete accessories.
6.3.2.2.2 Type values
| Type | Description | 
|---|---|
ANCHORPLATE
 | 
 An accessory consisting of a steel plate, shear stud connectors or welded-on rebar which is embedded into the surface of a concrete element so that other elements can be welded or bolted onto it later.  | 
BIRDPROTECTION
 | 
 A device that prevents a sitting down of birds at electrically critical points and thus birds are protected against electrical shocks and disturbances by short circuit are avoided.  | 
BRACKET
 | 
 An L-shaped or similarly shaped accessory attached in a corner between elements to hold them together or to carry a secondary element.  | 
CABLEARRANGER
 | 
 A cable arranger is a flexible accessory or a part of a component placed around cables to arrange and minimize flexing of them at the point where it is placed.  | 
ELASTIC_CUSHION
 | 
 A track elastic cushion is a kind of layer set on grooved sides of a concrete base, which is used for mitigating the impact of longitudinal and lateral load on track structures. A track elastic cushion shall only appear in ballastless track structures.  | 
EXPANSION_JOINT_DEVICE
 | 
 Assembly connection element between construction elements to allow for thermic differential expansions.  | 
FILLER
 | 
 Sealant, gap filler rod, packing material or other used to close a gap.  | 
FLASHING
 | 
 Construction material used to manage the passage of water around objects.  | 
INSULATOR
 | 
 A device designed to support and insulate a conductive element. Note: definition from IEC 151-15-39.  | 
LOCK
 | 
 A lock is a mechanical or electronic fastening device that is released either by a physical object (e.g., key, fingerprint, RFID card, security token etc.), by supplying secret information (e.g., number permutation, password), or by a combination thereof.  | 
PANEL_STRENGTHENING
 | 
 A component that minimizes pump effects of the substructure.  | 
POINTMACHINEMOUNTINGDEVICE
 | 
 Point machine mounting device.  | 
POINT_MACHINE_LOCKING_DEVICE
 | 
 Point machine locking device.  | 
RAILBRACE
 | 
 A rail component that prevents rails from tipping and twisting.  | 
RAILPAD
 | 
 A non-metallic pad placed between rail and baseplate or rail and sleeper, bearer or slab. Note: definition from EN 13481-1.  | 
RAIL_LUBRICATION
 | 
 A device that prevents wearing of the rails throughout the flange of wheel to reduce noise emissions. It is often located at inner side of the outer rail in a curve or near turnouts (depends on function wearing or noise reduction).  | 
RAIL_MECHANICAL_EQUIPMENT
 | 
 A rail mechanical equipment is a mechnical equipment installed at railside, like blocking device, speed regulator, bias loaded inspector, track scale or controllable retarder.  | 
SHOE
 | 
 A column shoe or a beam shoe (beam hanger) used to support or secure an element.  | 
SLIDINGCHAIR
 | 
 A component which supports and retains the stock rail and a flat surface upon which the foot of the switch rail slides.  | 
SOUNDABSORPTION
 | 
 A component in the track for sound absorption and may also absorb vibrations. It is often used in combination with slab tracks.  | 
TENSIONINGEQUIPMENT
 | 
 An equipment used to maintain the tension of conductors or cables.  | 
USERDEFINED
 | 
 User-defined accessory.  | 
NOTDEFINED
 | 
 Undefined accessory.  | 
6.3.2.2.3 Formal representation
TYPE IfcDiscreteAccessoryTypeEnum = ENUMERATION OF
	(ANCHORPLATE
	,BIRDPROTECTION
	,BRACKET
	,CABLEARRANGER
	,ELASTIC_CUSHION
	,EXPANSION_JOINT_DEVICE
	,FILLER
	,FLASHING
	,INSULATOR
	,LOCK
	,PANEL_STRENGTHENING
	,POINTMACHINEMOUNTINGDEVICE
	,POINT_MACHINE_LOCKING_DEVICE
	,RAILBRACE
	,RAILPAD
	,RAIL_LUBRICATION
	,RAIL_MECHANICAL_EQUIPMENT
	,SHOE
	,SLIDINGCHAIR
	,SOUNDABSORPTION
	,TENSIONINGEQUIPMENT
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;