diff --git a/SelfPropelledArtilleryUnit.Basic/SelfPropelledArtilleryUnit.Basic/SetGeneric.cs b/SelfPropelledArtilleryUnit.Basic/SelfPropelledArtilleryUnit.Basic/SetGeneric.cs
index 7b1a80e..0a76b6d 100644
--- a/SelfPropelledArtilleryUnit.Basic/SelfPropelledArtilleryUnit.Basic/SetGeneric.cs
+++ b/SelfPropelledArtilleryUnit.Basic/SelfPropelledArtilleryUnit.Basic/SetGeneric.cs
@@ -23,15 +23,16 @@ namespace SelfPropelledArtilleryUnit.Basic
         }
         public bool Insert(T MilitaryUnit, IEqualityComparer<T>? equal = null)
         {
-            if (places.Count == maxCount)
-                return false;
-            Insert(MilitaryUnit, 0);
-            return true;
+            return Insert(MilitaryUnit, 0, equal);
         }
         public bool Insert(T MilitaryUnit, int index, IEqualityComparer<T>? equal = null)
         {
             if (!(index >= 0 && index <= Count && places.Count < maxCount))
                 return false;
+            if (places.Count == maxCount)
+                throw new StorageOverflowException(index);
+            if (equal != null && places.Contains(MilitaryUnit, equal))
+                throw new ArgumentException("Добавленный объект присутствует в коллекции");
             places.Insert(index, MilitaryUnit);
             return true;
         }