Electric fences don't turn hogs, why think their cousions the bears would do any thing differant. My neighbor uses an electric fence to keep the Moose out of his garden. He uses a reguler transformer just like a farmer uses for cattle, with three strands of wire. When a Moose contacts it they jump forward tearing the whole fence down. Then they run off, and don't come back. He usually has to rebuild the fence two or three times during the summer, but it saves his garden.
On my hunting trip this fall, we had bears in camp almost every night. They never bothered anything, just nosed around and left. A friend who has a cabin down in the Alaska Range kept losing meat from the meat pole at night. They finally discovered the culperate, an 8ft Grizzly. Since none of them had a tag he's still there.
