overhead wires English English English English English overhead wires English English catenary English English English English English English overhead wires English English English English http://en.wikipedia.org/wiki/Overhead_line English English English in the late 1800’s. English English English English overhead catenary system English English English overhead wires OHLE English English English overhead wires English English English English English English English English overhead wires English English English English English English English English English English English overhead wires English English overhead wire English English English English