I have never known a rabbit who did NOT chew cords, it's just something bunnies do. Cover them up - like save paper towel tubes, and put the cord through that. It may not b terribly attractive, but it's cheaper than replacing cords! You can also use tubing from the hardware store.

We have a bunny-gate so Miss Hoppy cannot get into the office here without supervision. It's safer for everyone that way, as we have many cords, networked computers, printers, etc. Miss Hoppy believes all cords must be cut and moved away from the wall. There is no reasoning with her about this. So in the rest of the house she cannot get at cords, and this room she cannot get in.