IFC 4.3.1.0 (IFC4X3_ADD1)

7.4.2.22 IfcProtectiveDeviceTypeEnum

7.4.2.22.1 Semantic definition

The IfcProtectiveDeviceTypeEnum specifically defines the range of different breaker unit types that can be used in conjunction with protective device. Types may also be used as a reference to a complete protective device in circumstances where tripping units are not separately identified (typically expected to be the case during earlier stages of design).

7.4.2.22.2 Type values

Type Description
ANTI_ARCING_DEVICE

An anti-arcing device is an equipment that prevents electric arc.

CIRCUITBREAKER

A mechanical switching device capable of making, carrying, and breaking currents under normal circuit conditions and also making, carrying for a specified time and breaking, current under specified abnormal circuit conditions such as those of short circuit.

EARTHINGSWITCH

A safety device used to open or close a circuit when there is no current. Used to isolate a part of a circuit, a machine, a part of an overhead line or an underground line so that maintenance can be safely conducted.

EARTHLEAKAGECIRCUITBREAKER

A device that opens, closes, or isolates a circuit and has short circuit protection but no overload protection. It attempts to break the circuit when there is a leakage of current from phase to earth, by measuring voltage on the earth conductor.

FUSEDISCONNECTOR

A device that will electrically open the circuit after a period of prolonged, abnormal current flow.

RESIDUALCURRENTCIRCUITBREAKER

A device that opens, closes, or isolates a circuit and has short circuit and overload protection. It attempts to break the circuit when there is a difference in current between any two phases. May also be referred to as 'Ground Fault Interupter (GFI)' or 'Ground Fault Circuit Interuptor (GFCI)'

RESIDUALCURRENTSWITCH

A device that opens, closes or isolates a circuit and has no short circuit or overload protection. May also be identified as a 'ground fault switch'.

SPARKGAP

A spark gap is a device used to connect a circuit to earth in the event of a fault in live circuits.

VARISTOR

A high voltage surge protection device.

VOLTAGELIMITER

a voltage limiter is an equipment that prevents the over voltage.

USERDEFINED

User-defined type.

NOTDEFINED

Undefined type.

Table 7.4.2.22.A

7.4.2.22.3 Formal representation

TYPE IfcProtectiveDeviceTypeEnum = ENUMERATION OF
	(ANTI_ARCING_DEVICE
	,CIRCUITBREAKER
	,EARTHINGSWITCH
	,EARTHLEAKAGECIRCUITBREAKER
	,FUSEDISCONNECTOR
	,RESIDUALCURRENTCIRCUITBREAKER
	,RESIDUALCURRENTSWITCH
	,SPARKGAP
	,VARISTOR
	,VOLTAGELIMITER
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;

7.4.2.22.4 References

7.4.2.22.5 Changelog

7.4.2.22.5.1 IFC4

  • item, EARTHINGSWITCH
  • item, EARTHLEAKAGECIRCUITBREAKER
  • item, EARTHFAILUREDEVICE

7.4.2.22.5.2 IFC4.3_ADD1

  • item, ANTI_ARCING_DEVICE
  • item, SPARKGAP
  • item, VOLTAGELIMITER