Sumitomo Electric Industries, Limited

Mikihiko Okano

Yasunori Saito

Yoshikazu Yamano

Yoshinobu Kitayama

Tsuneo Nakano

Hideaki Miyazaki

An improved composite overhead stranded conductor obtained by providing an optical fiber cable in an overhead power line formed by stranding a plurality of conductors, or in an overhead earth wire which is extended in parallel with such an overhead power line. A spacer having a plurality of axially extending helical grooves formed in an outer surface thereof is positioned within a protective tube. Respective optical fibers and/or optical bundles are received in each of the grooves. Each of the grooves has a width substantially equal to the outer diameter of the optical fiber and/or the optical bundles received therein so that movement of the optical fibers and/or the optical bundles in the grooves in the circumferential direction of the spacer is restricted.

Composite overhead stranded conductor

Structure for connecting overhead earth wires with an optical fiber unit is proposed which comprises a protecting member for protecting the optical fiber unit from deformation. The protecting member is formed with a through hole for passing the optical fiber unit and with longitudinal grooves to receive the conductors.

Growing community of inventors

Osaka, Japan

Mikihiko Okano