IFC 4.3.0.1 (IFC4X3) development

7.2.2.2 IfcAlarmTypeEnum

7.2.2.2.1 Semantic definition

The IfcAlarmTypeEnum defines the range of different types of alarm that can be specified.

7.2.2.2.2 Type values

Type Description
BELL

An audible alarm.

BREAKGLASSBUTTON

An alarm activation mechanism in which a protective glass has to be broken to enable a button to be pressed.

LIGHT

A visual alarm.

MANUALPULLBOX

An alarm activation mechanism in which activation is achieved by a pulling action.

RAILWAYCROCODILE

An electrical contact placed between the rails (in the four-foot way) to provide warnings in the locomotive cab.

RAILWAYDETONATOR

A coin-sized device that is used as a loud warning signal to train drivers. It is usually placed on the top of the rail, usually secured with two lead straps, one on each side.

SIREN

An audible alarm.

WHISTLE

An audible alarm.

USERDEFINED

User-defined type.

NOTDEFINED

Undefined type.

Table 7.2.2.2.A

7.2.2.2.3 Formal representation

TYPE IfcAlarmTypeEnum = ENUMERATION OF
	(BELL
	,BREAKGLASSBUTTON
	,LIGHT
	,MANUALPULLBOX
	,RAILWAYCROCODILE
	,RAILWAYDETONATOR
	,SIREN
	,WHISTLE
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;

7.2.2.2.4 References

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7.2.2.2.5 Changelog

  • item, RAILWAYCROCODILE
  • item, RAILWAYDETONATOR