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. |
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;