As stated, that young of an Animal, should be supervised, or, have limited access when you are not at home. I (fortunately) have several barriers, which can be set, to our Utility Room only, then it and the Kitchen, then those and the Breakfast Room. Which allows a young Dog "earned" access.
But beyond that, I have a couple old useless wires (one standard Electrical Cord, and one Coaxial Cable) which I use to train mine. I "electively" throw them on the floor when we are training, and then do the "NO's" when it approaches them. I play with Toys close to the wires, touch them, and "sorta" encourage closeness. But when they sniff or mouth, it's a good strong NO !
This puts their exposure to any Wires, on my time, not theirs
