Использование метода List.Contains

Locomotives/Locomotives/SetLocomotivesGeneric.cs

@@ -28,13 +28,10 @@
         /// <returns></returns>
         public int Insert(T locomotive)
         {
-            for (int i = 0; i < _places.Count; i++)
-            {
-                if (locomotive.Equals(_places[i]))
+            if (_places.Contains(locomotive))
             {
                 throw new NotUniqueObjectException();
             }
-            }
             if (_places.Count == 0)
             {
                 _places.Add(locomotive);