Abstract: Electric fences consist typically of branches, preferably running horizontally and vertically, connected to each other in the form of a network, with conductor branches made of a non-conducting material and provided with an electrical conductor or constructed directly as an electrical conductor. The conductor is connectable to the voltage conducting post of an electric fence device. In the prior art all horizontal branches are provided with an electrical conductor. This entails problems for the confinement efficacy, since in the case of fouling by growth encrustation, a large portion of the electrical energy can be lost or leak to the ground. To construct the electric fence in such a way that the loss or leakage of electrical energy into the ground is prevented as much as possible, only a few of the horizontal branches are constructed as conductor branches having relatively high electrical conductivity, and the other horizontal branches are constructed as non-conductor branches.