3 - Electrical Equipment - Exchange Electrical Model - Systems (ER)

Electrical Equipment

In this section all electrical equipment realted information needed to satisfy the Exchange Electrical Model - Systems will be described.

Information Needed	Actor Supplying	Functional Part
The owner history of the equipment must be asserted	Electrical Design	[Model Electrical Equipment (type, predefined_type) (FP)]
For each item of electrical equipment or distribution point to be considered, general attributes of the equipment types and occurrences may be specified including: name to extend identification of the type or occurrence description that can be used for any further qualifying information	Electrical Design, [Product Manufacture], [Product Supply]	[Model Electrical Equipment (type, predefined_type) (FP))]
Where information about equipment shape is to be exchanged as part of the building model specification, the placement and shape representation should be asserted. The shape representation of an item of electrical equipment is typically a representation map which is defined for the equipment type and then referenced for each occurrence. Each occurrence specifies its own placement. Within the representation map, the particular form of the shape representation may differ according to the life cycle stage as with flow segments. Generally, the representations selected for the flow fitting representation map will follow the representations selected for flow segments being either: Axis Representation Body Representation o Swept solid o CSG o Bounding box o Boundary representation (Brep) \ Note that since elements may have multiple shape representations, provision of shape representations of electrical systems at different lifecycle stages should be considered as cumulative and not as alternative.	Electrical Design, [Product Manufacture], [Product Supply]	[Model Electrical Equipment (type, predefined_type) (FP))]

Equipment Properties

Information Needed	Man	Opt	Rec	Actor Supplying	Functional Part
Specification of properties that may be assigned through property sets as defined in the functional part. For electrical equipment, properties will generally be defined for the equipment type. Properties specified vary according to the equipment type. Refer to the functional part for further details. Note that particular equipment types and their properties are identified through the specification of parameters within the functional part as shown. Note that although lamp type is specified as a type of electrical equipment, lamps do not participate in this exchange requirement since the electrical system connects to the light fixture and not to the lamp.				Electrical Design	[Model Electrical Equipment (type, predefined_type) (FP)] ElectricalAppliance computer directwaterheater dishwasher electriccooker electricheater facsimile freestandingfan freezer fridge_freezer handdryer indirectwaterheater microwave photocopier printer refrigerator radiantheater scanner telephone tumbledryer tv vendingmachine washingmachine waterheater watercooler ElectricFlowStorageDevice battery capacitorbank harmonicfilter inductorbank ups ElectricGenerator currently must be specified as user defined ElectricHeater electricpointheater electriccableheater electricmatheater ElectricMotor dc induction polyphase reluctancesynchronous synchronous ElectricTimeControl timeclock timedelay relay LightFixture pointsource directionsource Outlet audiovisualoutle communicationsoutlet poweroutlet ProtectiveDevice fusedisconnector circuitbreaker earthfailuredevice residualcurrentcircuitbreaker residualcurrentswitch varistor SwitchingDevice contactor emergencystop starter switchdisconnector toggleswitch Transformer current frequency voltage Note that, at early design stages, equipment items used in other systems may also be applied in the context of an electrical system where such items of equipment require the provision of electrical power or control. The detailed design of such equipment will show that cabling is to a motor or some other intermediate equipment item that falls within the general definition of electrical equipment above. However, to allow for early design requirements, it is recommended that the following equipment items are also considered for inclusion: Boiler Chiller Compressor Condensor CoolingTower Damper EvaporativeCooler Evaporator Fan Filter HeatExchanger Humidifier Pump SanitaryTerminal SpaceHeater UnitaryEquipment Valve For further information on predefined types of these equipment items that may have electrical connections, refer to functional parts for modeling ventilation or piping equipment.

Distribution Board (Point) Properties

Information Needed	Man	Opt	Rec	Actor Supplying	Functional Part
An electric distribution board (or distribution point) is a particular form of electrical equipment that is generally created by the aggregation of a number of other electrical components. Specification of properties that may be assigned through property sets as defined in the functional part.				Electrical Design, [Product Manufacture], [Product Supply]	[Model Electrical Distribution Point (function) (FP)]

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Electrical Equipment

Equipment Properties

Distribution Board (Point) Properties