Electrical cable having a bearing part and two concentrically arranged conductors

US5122622A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Thomas Reuss · Fürstenau, DE
• Klaus Lotter · Großenseebach, DE

Key dates

• Filing date: Feb 13, 1991
• Grant date: Jun 16, 1992
• Expiry date: Feb 13, 2011

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01B7/1825
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An electrical cable includes a central bearing part having a plurality of high-tensile plastic filaments. A rubber sheathing encloses the bearing part. An inner and outer conductor are twisted onto the sheathed bearing part and are disposed concentrically to one another. The inner and outer conductors each include stranded wires. The stranded wires of the inner conductor, as well as the stranded wires of the outer conductor, are twisted together to form a lay. The stranded wires of the inner conductor have the same number of lays as the stranded wires of the outer conductor but with opposite directions of lay. An inner separation layer covers the inner conductor and an outer separation layer covers the outer conductor. Additionally, a rubber insulation layer covers the outer separation layer. Finally, an outer covering encloses the outer separation layer.