while (!element -> AlignedFreeTerminals().isEmpty() && m_diagram -> project() -> autoConductor())
    {
        QPair <Terminal *, Terminal *> pair = element -> AlignedFreeTerminals().takeFirst();

        Conductor *conductor = new Conductor(pair.first, pair.second);
        conductor -> setProperties(m_diagram -> defaultConductorProperties);

foreach(Conductor *other_conductor, relatedPotentialConductors())
    {
        ConductorProperties other_properties = other_conductor->properties();
        other_properties.text = properties_.text;
        other_properties.color = properties_.color;
        other_properties.cond_size = properties_.cond_size;
        other_properties.m_function = properties_.m_function;
        other_properties.m_tension_protocol = properties_.m_tension_protocol;
        other_conductor->setProperties(other_properties);
    }

diff --git a/sources/diagramevent/diagrameventaddelement.cpp b/sources/diagramevent/diagrameventaddelement.cpp
--- a/sources/diagramevent/diagrameventaddelement.cpp
+++ b/sources/diagramevent/diagrameventaddelement.cpp
@@ -227,7 +227,31 @@
         Conductor *conductor = new Conductor(pair.first, pair.second);
         new AddItemCommand<Conductor *>(conductor, m_diagram, QPointF(), undo_object);
 
-			//Autonum the new conductor, the undo command associated for this, have for parent undo_object
+
+				//Get all conductors at the same potential of conductor
+			QSet <Conductor *> conductors_list = conductor->relatedPotentialConductors();
+
+				//Compare the properties of every conductors stored in conductors_list,
+				//if every conductors properties is equal, we use this properties for conductor.
+			ConductorProperties others_properties;
+			bool use_properties = false;
+			if (!conductors_list.isEmpty())
+			{
+				use_properties = true;
+				others_properties = (*conductors_list.begin())->properties();
+				foreach (Conductor *cond, conductors_list)
+					if (cond->properties() != others_properties)
+						use_properties = false;
+			}
+
+			if (use_properties)
+				conductor->setProperties(others_properties);
+			else
+			{
+				conductor -> setProperties(m_diagram-> defaultConductorProperties);
+			}
+			
+		//Autonum the new conductor, the undo command associated for this, have for parent undo_object
         ConductorAutoNumerotation can  (conductor, m_diagram, undo_object);
         can.numerate();
         if (m_diagram->freezeNewConductors() || m_diagram->project()->isFreezeNewConductors()) {
@@ -240,3 +264,4 @@
     element->updateLabel();
     element->freezeNewAddedElement();
 }
+