Grounding (a.k.a. earthing) is perhaps the most neglected component of many fence systems. We recommend three ground rods, 6’ deep and spaced 10’ apart are the minimum recommendation. Never attach copper to steel. Electrolysis can occur and result in corrosion which weakens shocking power. Use galvanized ground wire and grounding rods to avoid this problem.
Consider that most energizers use galvanized or stainless steel terminals – not copper. Think of your ground system as an antenna that gathers electricity in order to deliver the shock to the animal. Modern satellite receivers can tune in to more television channels than the “rabbit ear” antennas of the past. A hose clamp holding a piece of copper wire to a rusty t-post has been the weakest link of many electric fence systems.