The wiring type(arc or chamfer) for the wire. 
   Namespace:   Autodesk.Revit.DB.Electrical  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0) 
Syntax
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Remarks
 If the WiringType is arc, the shape of the wire depends on the number of points - it may be linear, a circular arc, or a spline. 
 Exceptions
| Exception | Condition | 
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| Autodesk.Revit.Exceptions ArgumentOutOfRangeException | When setting this property: A value passed for an enumeration argument is not a member of that enumeration |