A high tension Power Line spline, modular length 300 metres with terminator for connection to a power station. Make sure the ground under the wires is level or on a straight slope or the wires will be distorted. Use the Smooth Spline Tool from the menu on the model spline to achieve this.
For the end connector segments, place track on the ground between the node points and use the Smooth Spline Tool on the track. This will give the uniform ground slope between the nodes. Delete the track when satisfied.