Electro-optical overhead wire with at least 24 light wave guides

Details Electro-optical overhead wire with at least 24 light wave guides Electro-optical overhead wire with at least 24 light wave guides

1991-08-26

1993-06-22

Lee, John D.

Optical waveguides

Optical transmission cable

With electrical conductor in the same cable

385102, 385107, 385108, G02B 644

Patent

active

052221733

ABSTRACT:
The electro-optical overhead wire is made from a plurality of circular cross-sectioned strand elements and consists of a core and a plurality of wire layers surrounding the core radially. The wire layers include at least one layer of chiefly electrically conducting wires and at least one other layer of predominantly high tensile strength wires. At least one of the wire layers of the high tensile strength wire also contains at least two strand elements arranged symmetrically around the core and each consisting of a high quality steel tube with an outer diameter of 2.5 mm containing at least 12 light wave guides. Alternatively or in addition, the electro-optical overhead wire is made up of a core and a first wire layer immediately surrounding the core and a second wire layer immediately surrounding the first wire layer, while the core contains a high quality steel tube with a five mm diameter containing 12, 18 or 24 bundles of light wave guides containing two light wave guides in each bundle.

REFERENCES:
patent: 4709983 (1987-12-01), Plessner et al.
patent: 4952012 (1990-08-01), Stamnitz
patent: 4971420 (1990-11-01), Smith
Feltd-Com OPGW-Optical Ground Wire, Pamphlet, Felton & Guilleaume Energietechnik A.G., Mar. 1991.
High-Voltage Overhead Wires with Optical Fibres, Electrizitatswirt Schaft, Aug. 1988, p. 462-466. (Tranlation).

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