Virgil,
I am not sure how you have determined the conductor is copper but I want to make sure you realize that the concentric neutral conductors, that we can see in the pic, are always copper weather the phase conductor is copper or aluminum.
The cable in that pic looks to be bent a little sharp. When you replace it be sure to remember the cable bend radius in 12 times the diameter of the cable. Also, the elbow should not have any mechanical stress on it. (from the cable) Weight bearing on the primary bushing could cause leaks over time.