IfcEnergySequenceEnum

Definition from IAI: This enumeration is used to identify the sequence of usage of the energy source. The IfcEnergySequenceEnum contains the following:

- PRIMARY: Primary energy source.
- SECONDARY: Secondary energy source.
- TERTIARY: Tertiary energy source.
- AUXILIARY: Auxiliary.
- USERDEFINED: User-defined energy sequence.
- NOTDEFINED: Undefined energy sequence.

> HISTORY: New enumeration in IFC 2x2.

EXPRESS specification:

TYPE IfcEnergySequenceEnum = ENUMERATION OF
( | PRIMARY, SECONDARY, TERTIARY, AUXILIARY, USERDEFINED, NOTDEFINED);
END_TYPE;