Distribution System



Class type




A distribution system is a network designed to receive, store, maintain, distribute, or control the flow of a distribution media. A common example is a heating hot water system that consists of a pump, a tank, and an interconnected piping system for distributing hot water to terminals.



Dictionary version


Dictionary release date


Dictionary license

Dictionary state


Parent class







Class properties
Property set: Attributes

Optional description, provided for exchanging informative comments.

Assignment of a globally unique identifier within the entire software world.

Long name for the context as used for reference purposes.

Optional name for use by the participating software systems or users. For some subtypes of IfcRoot the insertion of the Name attribute may be required. This would be enforced by a where rule.

The type denotes a particular type that indicates the object further. The use has to be established at the level of instantiable subtypes. In particular it holds the user defined type, if the enumeration of the attribute PredefinedType is set to USERDEFINED or when the concrete entity instantiated does not have a PredefinedType attribute. The latter is the case in some exceptional leaf classes and when instantiating IfcBuiltElement directly.

Property set: Pset_Condition

The overall condition of a product based on an assessment of the contributions to the overall condition made by the various criteria considered. The meanings given to the values of assessed condition should be agreed and documented by local agreements. For instance, is overall condition measured on a scale of 1 - 10 or by assigning names such as Good, OK, Poor.

Date on which the overall condition is assessed

Qualitative description of the condition.

Indicates how often the equipment should be assessed, to have a clear estimation on its working state, based on which the maintenance staff can decide whether it requires maintenance or requires to be updated or replaced.

External reference to assessment method or application used to perform the assessment.

Child classes

Show all children (50) »