OVERHEAD ELECTRIC AND OPTICAL TRANSMISSION SYSTEMS

In a method of stringing an overhead conductor 1 incorporating an optical fibre ribbon 4, at least two lengths of overhead conductor, each having a bore 3 within and extending along the length of the conductor, are electrically and mechanically connected end to end in such a way that the bores of interconnected conductor lengths are smoothly continuous and the conductor consisisting of the interconnected conductor lengths is strung between a plurality of towers. After the conductor 1 has been strung, the optical fibre ribbon 4 is introduced into and propelled along the bore 3 of the suspended conductor 1 by fluid drag of a gaseous medium.