MULTI-CORE CABLE

• US 20150083458A1
• Filed: 04/25/2013
• Published: 03/26/2015
• Est. Priority Date: 05/01/2012
• Status: Abandoned Application

• Current Assignee: Sumitomo Electric Industries Limited (Sumitomo Corporation)
• Original Assignee: Sumitomo Electric Industries Limited (Sumitomo Corporation)
• Inventors: Tanaka, Masato, Hayashishita, Tatsunori
• Application Number:
  US14/389,434
• Publication Number:
  US 20150083458A1
• Time in Patent Office: Days
• US Class Current: 174/107
• CPC Class Codes: H01B 1/026 Alloys based on copper
• CPC Class Codes: H01B 7/0009 Details relating to the conductive cores
• CPC Class Codes: H01B 7/0241 comprising one or more helical wrapped layers of insulation
• CPC Class Codes: H01B 7/04 Flexible cables, conductors, or cords, e.g. trailing cables
• CPC Class Codes: H01B 7/18 Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
• CPC Class Codes: H01B 7/30 with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect

Abstract

In a multi-core cable 10, plural electric wire units 12 made of stranded plural small-diameter electric wires 11 are bundled to form an electric wire assembly 14 and a shielding layer 15 made of braided a conducting wire 15a is arranged on an outer periphery of the electric wire assembly and an outside of the shielding layer is covered with a sheath 16 made of resin. In the multi-core cable 10, the conducting wire 15a of the shielding layer 15 braided is made of a copper alloy wire given silver plating, and a diameter of the wire of the conducting wire is 0.04 mm to 0.15 mm, and a conductor elongation rate of the conducting wire is 0.8% or more, and a thickness of the silver plating is set at 0.6 μm or more.

Claims

1. A multi-core cable in which plural electric wire units made of stranded plural small-diameter electric wires are bundled to form an electric wire assembly and a shielding layer made of braided conducting wires is arranged on an outer periphery of said electric wire assembly and an outside of the braided shielding layer is covered with a sheath made of resin,

wherein the conducting wire of the shielding layer braided is made of copper alloy wires given silver plating and a diameter of the conducting wire is 0.04 mm to 0.15 mm and a conductor elongation rate of the conducting wire is 0.8% or more and a thickness of the silver plating is 0.6 μ

m or more.

2. A multi-core cable according to claim 1, wherein the diameter of the conducting wire is 0.08 mm to 0.15 mm.

3. A multi-core cable according to claim 1, wherein a thickness of the sheath is 0.6 mm to 1.0 mm and a distance between the electric wire assembly and an inner surface of the sheath is 0.1 mm to 0.5 mm.

4. A multi-core cable according to claim 2, wherein a thickness of the sheath is 0.6 mm to 1.0 mm and a distance between the electric wire assembly and an inner surface of the sheath is 0.1 mm to 0.5 mm.