Area   |  
 The number of electrical phases of the area based load. 
 Namespace: Autodesk.Revit.DB.Electrical
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.0.0.0 (25.0.0.0)
| Exception | Condition | 
|---|---|
| ArgumentException | When setting this property: The number of electrical phases numberOfPhases is not valid, only 1, 3 is valid. | 
 This property is used to retrieve the number of electrical phases.