Overhead cable

An aerial cable is on pylons mounted, electrically insulated cable with multiple wires in telecommunications. The term is also used for free on poles mounted optical waveguides. The term is not to be confused with overhead lines, which consist of individual bare wires with the help of insulators ( usually made of glass or porcelain) spanned and see others in the field of electrical power engineering application.

Air cables are installed primarily for telephone connections in remote buildings and temporary facilities (such as, for example). For telephone cables on poles, a distinction between air cables and aerial cables support cable. When air cable strain relief in the cable sheath is approximately symmetrically integrated. For strain relief is often used a fiberglass or steel mesh. When carrying cable aerial cable is a single cable strain relief (usually wire) installed in the cable sheath. The cable has a cross section which is reminiscent of a night. Here the conductor bundle forms the lower circle and - usually connected via a small footbridge - the supporting cable the second, usually smaller circle. Both are surrounded by a common weather - and sun- resistant outer cable sheath.

Also, the power company put a to build the company's own telephone network overhead cables. Frequently, this cable is integrated in the earth wire. It is sometimes also an additional rope to the mast, usually laid in height of the top crossbar. For cables with an odd number of conductor cables, this is also often laid as anchor phase. There are also aerial cables that are housed inside of overhead line conductor cables.

In the previous EVS (now in the EnBW AG) overhead cables for internal company communications were installed often scalloped until the mid- 1980s on the earth wire or an auxiliary cable to the poles. In a 20 - kV line between Ried and Eberdingen this even a rope ladder was used. Aerial cables for message transmission along power lines are now almost always performed because of disturbing influences by the power line as optical waveguides.